SLG46537

Features

Logic and Mixed-Signal Circuits
Highly Versatile Macrocells
Read Back Protection (Read Lock)
1.8V (±5%) to 5V (±10%) Supply
Operating Temperature Range: -40°C to 85°C
RoHS-Compliant/Halogen-Free
Macrocells Overview
- Four Analog Comparators (ACMP)
- Two Voltage References (Vref)
- Seventeen Combination Function Macrocells
  - Three Selectable DFF/Latch or 2-bit LUTs
  - One Selectable Continuous DFF/Latch or 3-bit LUT
  - Four Selectable DFF/Latch or 3-bit LUTs
  - One Selectable Pipe Delay or 3-bit LUT
  - One Selectable Programmable Pattern Generator or 2-bit LUT
  - Five 8-bit Delays/Counters or 3-bit LUTs
  - Two 16-bit Delays/Counters or 4-bit LUTs
- Asynchronous State Machine
  - Eight States
  - Flexible Input Logic from State Transitions
- Serial Communications
  - I²C Protocol Compliant
- Pipe Delay – 16 Stage/3 Output (Part of Combination Function Macrocell)
- Programmable Delay
- Additional Logic Functions – 2 Deglitch Filters with Edge Detectors
- Two Oscillators (OSC)
  - Configurable 25kHz/2MHz
  - 25MHz RC Oscillator
- Crystal Oscillator
- Power-On-Reset (POR)
- Eight Byte RAM + OTP User Memory
  - RAM Memory Space that is Readable and Writable via I²C
  - User-defined Initial Values Transferred from OTP
- Analog Temperature Sensor

Find Other Products in GreenPAK with Asynchronous State Machine

SLG46537 Block Diagram

Description

The SLG46537V/M provides a small, low-power component for commonly used mixed-signal functions. The user creates their circuit design by programming the one-time programmable (OTP) non-volatile memory (NVM) to configure the interconnect logic, the I/O pins, and the macrocells of the SLG46537V/M. This highly versatile device allows for a wide variety of mixed-signal functions to be designed within a very small, low-power single integrated circuit.

Parameters

Attributes	Value
Nominal VDD	1.71 - 5.5
GPIOs (#)	18
Special Features	ASM (8 states)
ACMP Channels (#)	4
CNT/DLY (Max) (#)	7
LUTs (Max) (#)	17
D Flip-flops (DFFs) (#)	8
Pipe Delay	16-stage
# of Programable Delays (#)	1
Oscillator Type	Conf. OSC, RC OSC, Crystal OSC
Temperature Sensor (ch) (#)	1
Interface	I2C
Memory Type	OTP
Temp. Range (°C)	-40 to +85°C

Package Options

Pkg. Type	Pkg. Dimensions (mm)	Lead Count (#)	Pitch (mm)
MSTQFN	2.0 x 2.2	22	0.4
TQFN	2.0 x 3.0	20	0.4

Application Block Diagrams

	Gaming Keyboard A power-efficient, highly integrated, and compact keyboard system with customizable RGB lighting and stable, low-latency wireless performance.
	Gaming Mouse A power-efficient, highly integrated, and compact mouse system with customizable RGB lighting and stable, low-latency wireless performance.
	Smart Wireless Door Lock NFC-charged smart lock with Bluetooth LE, secure pairing, and IoT control for easy, wire-free access.
	Infusion Level Monitor Using Capacitive Touch Sensing Infusion monitors track fluid levels, offering reliable alerts for diverse liquid tank applications.
	Elevator Control System Elevator control system with integrated real-time communication with main control, in/call, and out/call.
	Portable Ultraviolet (UV) Disinfector Foldable UV disinfector offers portable, eco-friendly sanitation with safety and charging features.
	Resistive Sensor Platform with IO‑Link Low‑power, high‑performance sensing with IO‑Link connectivity and SSC pre‑processing for easy integration.
	Smart Lock with Ultra-Low Power Wi-Fi & Bluetooth Low Energy Low-power smart lock system enabling secure, wireless control with fingerprint support.
	Smart Voice-Controlled Clotheshorse with Connectivity Smart clotheshorse system provides multiple control options with efficient power for easy laundry drying.

Additional Applications

Personal Computers and Servers
PC Peripherals
Consumer Electronics
Data Communications Equipment
Handheld and Portable Electronics

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Part Number	Status	Samples	Longevity	Stock	Package	Budgetary Price (USD)	Lead Count (#)	Carrier Type	Moisture Sensitivity Level (MSL)	Pkg. Dimensions (mm)	Pb (Lead) Free	Temp. Range (°C)	Country of Assembly	Country of Wafer Fabrication
SLG46537M	Active	Available		In Stock	MSTQFN	1ku \| $0.521	22#	Tape & Reel	1	2.0 x 2.2	Yes	-40 to +85°C	CHINA, TAIWAN	TAIWAN
SLG46537V	Active	Available	2037 Sep	In Stock	TQFN	1ku \| $0.428	20#	Tape & Reel	1	2.0 x 3.0	Yes	-40 to +85°C	CHINA, TAIWAN	TAIWAN

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Filters

Application Note
AN-1195 Supercapacitor-Based Backup Solutions: A Design Toolkit
PDF 517 KB R19AN0488EE0200 Rev.2.00 May 25, 2026
The SLG46537V IC implements a supercapacitor‑based backup solution. It employs analog comparators (ACMPs), LUTs, D flip‑flops (DFFs), counter/delay (CNT/DLY) blocks, and edge detectors (EDGE DET). These configurations enable equivalent series resistance (ESR) testing, cell balancing, and temperature and ripple monitoring using a boost converter and temperature sensors. This solution provides comprehensive protection and monitoring for voltage stability, cell health, ripple, and fault prevention.
Related Files:
Sample Code
Application Note
AN-1144 I2C Expander
PDF 652 KB R19AN0486EE0200 Rev.2.00 May 05, 2026
The SLG46537V IC enables efficient control of an 8-bit bidirectional I²C bus by combining input and output functions on shared GPIO pins. Using LUT-based logic for dynamic output-enable control, the design supports seamless switching between read and write operations. This approach simplifies hardware, reduces pin count, and provides a flexible solution for I²C-based communication systems.
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Sample Code
Application Note
AN-1125 In-System Debug for GreenPAK™ Devices with I2C Serial Communication
PDF 351 KB R19AN0532EE0200 Rev.2.00 May 05, 2026
This application note presents the in‑system debug (ISD) capability of GreenPAK™ devices with an I²C interface, allowing designers to modify configuration registers directly on the target PCB without reprogramming NVM. ISD accelerates development by enabling quick adjustments to macrocell settings and routing during real‑time operation. In‑system debug simplifies debugging and supports multiple devices on the same I²C bus.
Application Note
AN-1176 RFID Sensor Dog Door
PDF 937 KB R19AN0530EE0200 Rev.2.00 May 05, 2026
The SLG46537V from the GreenPAK family controls an RFID-based pet door using UART commands with an SM130 module. It employs the Asynchronous State Machine (ASM) block, LUTs, Edge detectors (EDGE DETs), D flip-flop (DFF), Counter/Delay (CNT/DLY) block, Pattern Generator (PGEN) and Pipe Delay microcell. It manages tag detection signals, extends access time via internal timing logic, and includes lock-driving circuitry, enabling a compact, low-power automatic pet-door solution.
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Sample Code
Application Note
AN-1189 Coin Counter
PDF 906 KB R19AN0531EE0200 Rev.2.00 May 05, 2026
Implement a piggy-bank coin counter using SLG46537 IC. The setup includes a CD4026 IC for driving the 7-segment LED display. The SLG46537V IC determines the coin type and assigns the correct number of pulses to each. This system is suitable for various coin-accepting applications, including vending machines, arcade machines, and coin lockers.
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Sample Code
Application Note
AN-1154 Parking Assist System with GreenPAK™
PDF 572 KB R19AN0528EE0200 Rev.2.00 Apr 30, 2026
AI-generated Summary: The SLG46537V IC enables a compact parking assist system by processing the SHARP GP2Y0A60SZLF ultrasonic sensor signals and activating a buzzer for distance alerts. It uses internal logic, counters, and comparators to evaluate proximity and provide audible warnings, offering a simple and reliable automotive safety solution.
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Sample Code
Application Note
AN-1143 Line Follower Control Circuit for Robots
PDF 427 KB R19AN0525EE0200 Rev.2.00 Apr 30, 2026
The SLG46537V IC drives a three-sensor line-follower robot using LUT logic to interpret inputs from TCRT5000 optical sensors. It applies Karnaugh-derived and optimized LUT configurations to control two motors based on detected track position. This solution demonstrates hardware efficiency, reduced logic resource usage, and adaptable robotic guidance using minimal external components.
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Sample Code
Application Note
AN-1142 Bat Detector – Ultrasound Translator
PDF 1.31 MB R19AN0524EE0200 Rev.2.00 Apr 30, 2026
The SLG46537V IC transforms ultrasonic bat echolocation signals into audible pulses and generates PWM outputs proportional to signal amplitude. It integrates counters, analog comparators, and PWM to create a compact detector that provides both presence indication and intensity-based output for bioacoustic analysis.
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Sample Code
Application Note
AN-1139 Binary Sequence Detector
PDF 775 KB R19AN0523EE0200 Rev.2.00 Apr 30, 2026
This application note presents the design and implementation of a "101" binary sequence detector using SLG46537V and SLG46110 IC. Two implementation methods are demonstrated: a DFF‑ and LUT‑based design, and a version using the GreenPAK™ ASM module. This approach ensures accurate pattern recognition for framing or protocol validation in embedded and IoT systems, offering a compact and low-power implementation.
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Sample Code
Application Note
AN-1118 Eight Output 8-bit PCM LED Dimming Using ASM
PDF 826 KB R19AN0514EE0200 Rev.2.00 Apr 27, 2026
The SLG46537V GreenPAK device enables eight‑channel LED dimming using PWM signals generated by its ASM block. This approach offloads control from the MCU via the I²C interface, ensuring efficient resource usage and synchronized output channels. The design can be expanded with additional PWM outputs, making it well‑suited for compact, power‑efficient lighting systems.
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Application Note
AN-1110 ASM Counter with Display
PDF 560 KB R19AN0513EE0200 Rev.2.00 Apr 27, 2026
Build an up/down counter using the asynchronous state machine (ASM) of the SLG46537V IC. The design consists of an 8‑state ASM macrocell, LUTs, a D flip‑flop (DFF), and a FILTER block to drive a 7‑segment display. The system can display eight digits: from 0 through 7. The ASM transitions to the next or previous state based on the logic level of PIN#4 (Up/Down). This design is ideal for applications that require a visual indication of counted data.
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Sample Code
Application Note
AN-1127 Enhanced Lead-Acid Battery Management
PDF 620 KB R19AN0516EE0200 Rev.2.00 Apr 27, 2026
The SLG46537V IC provides a compact solution for enhanced lead-acid battery management. It uses an ASM block to manage battery states and transitions during charging. CNT/DLY blocks control state transitions in the charge cycle based on time durations. The design, with minimal external components, is intended to charge an Exide 12V 4.5AH battery. This solution is ideal for applications requiring efficient, space-saving battery management with flexible state control.
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Sample Code
Application Note
AN-1126 ASM to Synchronous Conversion
PDF 518 KB R19AN0515EE0200 Rev.2.00 Apr 27, 2026
The SLG46537V IC demonstrates a method for converting an asynchronous state machine (ASM) into a synchronous state machine (SSM). The design incorporates an ASM block, DFFs, a FILTER block, and LUTs. This configuration enables reliable clock‑edge‑based state transitions when predefined conditions are met, ensuring stable and predictable timing control in digital logic systems.
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Sample Code
Application Note
AN-1100 Using GreenPAK’s I2C Port to Control an RGB LED Breathing Pattern
PDF 373 KB R19AN0509EE0200 Rev.2.00 Apr 21, 2026
Build a compact RGB LED driver using the SLG46537 GreenPAK programmable mixed-signal IC. It utilizes an I²C block, two counters, three LUTs, and one DFF to generate a breathing light pattern on an RGB LED. The key advantages include low energy consumption, flexible configuration, and minimal external components.
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Sample Code
Application Note
AN-1099 Using GreenPAK’s I2C Port to Control an RGB LED Pulse
PDF 390 KB R19AN0508EE0200 Rev.2.00 Apr 21, 2026
The SLG46537 GreenPAK programmable mixed-signal IC manages an RGB LED through its I²C interface. This design leverages I²C communication to adjust counters and a LUT, allowing precise control of LED on/off timing for accurate light pulse generation. The approach offers key benefits such as low power consumption, high flexibility, and minimal need for external components.
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Sample Code

Datasheets (1)

Datasheet
SLG46537 Datasheet
RECOMMENDED
PDF 3.95 MB Feb 19, 2026
The SLG46537 is a GreenPAK programmable mixed-signal matrix IC integrating digital logic, analog, and timing functions in compact STQFN and MSTQFN packages. It features 19 configurable macrocells with 2-, 3-, and 4-bit LUTs, D flip-flops, 8- and 16-bit counters and delays, four analog comparators, an 8-state asynchronous state machine, RC and crystal oscillators, an I²C interface, and OTP NVM, operating from 1.8V to 5V.

Application Notes & White Papers (35)

Application Note
AN-1195 Supercapacitor-Based Backup Solutions: A Design Toolkit
PDF 517 KB R19AN0488EE0200 Rev.2.00 May 25, 2026
The SLG46537V IC implements a supercapacitor‑based backup solution. It employs analog comparators (ACMPs), LUTs, D flip‑flops (DFFs), counter/delay (CNT/DLY) blocks, and edge detectors (EDGE DET). These configurations enable equivalent series resistance (ESR) testing, cell balancing, and temperature and ripple monitoring using a boost converter and temperature sensors. This solution provides comprehensive protection and monitoring for voltage stability, cell health, ripple, and fault prevention.
Related Files:
Sample Code
Application Note
AN-1144 I2C Expander
PDF 652 KB R19AN0486EE0200 Rev.2.00 May 05, 2026
The SLG46537V IC enables efficient control of an 8-bit bidirectional I²C bus by combining input and output functions on shared GPIO pins. Using LUT-based logic for dynamic output-enable control, the design supports seamless switching between read and write operations. This approach simplifies hardware, reduces pin count, and provides a flexible solution for I²C-based communication systems.
Related Files:
Sample Code
Application Note
AN-1125 In-System Debug for GreenPAK™ Devices with I2C Serial Communication
PDF 351 KB R19AN0532EE0200 Rev.2.00 May 05, 2026
This application note presents the in‑system debug (ISD) capability of GreenPAK™ devices with an I²C interface, allowing designers to modify configuration registers directly on the target PCB without reprogramming NVM. ISD accelerates development by enabling quick adjustments to macrocell settings and routing during real‑time operation. In‑system debug simplifies debugging and supports multiple devices on the same I²C bus.
Application Note
AN-1176 RFID Sensor Dog Door
PDF 937 KB R19AN0530EE0200 Rev.2.00 May 05, 2026
The SLG46537V from the GreenPAK family controls an RFID-based pet door using UART commands with an SM130 module. It employs the Asynchronous State Machine (ASM) block, LUTs, Edge detectors (EDGE DETs), D flip-flop (DFF), Counter/Delay (CNT/DLY) block, Pattern Generator (PGEN) and Pipe Delay microcell. It manages tag detection signals, extends access time via internal timing logic, and includes lock-driving circuitry, enabling a compact, low-power automatic pet-door solution.
Related Files:
Sample Code
Application Note
AN-1189 Coin Counter
PDF 906 KB R19AN0531EE0200 Rev.2.00 May 05, 2026
Implement a piggy-bank coin counter using SLG46537 IC. The setup includes a CD4026 IC for driving the 7-segment LED display. The SLG46537V IC determines the coin type and assigns the correct number of pulses to each. This system is suitable for various coin-accepting applications, including vending machines, arcade machines, and coin lockers.
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Sample Code

View More (35)

Errata & Technical Updates (1)

Device Errata
SLG4653x Errata
PDF 1.01 MB CE-GP-002 Feb 02, 2026
Functional anomalies in SLG4653x devices include counter timing faults, incomplete filtering of certain high-frequency inputs, oscillator start-up and settling deviations, I²C read and write interaction issues, unintended GPIO latching, delay-logic trigger limitations and comparator input leakage effects. The errata define the conditions behind these behaviors and provide the constraints and workarounds required for reliable operation in GreenPAK-based designs.

Schematics & Design Files (1)

PCB Design Files
GreenPAK Altium Library
ZIP 10.09 MB Nov 06, 2025
The GreenPAK Altium Library is a collection of schematic symbols and physical PCB footprints for Renesas' GreenPAK and Power GreenPAK programmable mixed-signal ICs that are available for use within the Altium Designer software environment. The library allows engineers to easily incorporate these devices into their PCB designs using industry-standard CAD tools.

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The SLG46537M-DIP 20-pin DIP prototyping board is perfect for breadboarding and fast prototyping using the SLG46537M programmable mixed-signal matrix with asynchronous state machine IC. It requires the SLG4SA-DIP DIP Adapter to use it with the Advanced Development Board.

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GreenPAK Advanced Development Board

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The board works in tandem with the GreenPAK Designer software (built into the Go... Read More

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Test This Board Remotely

Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.

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SLG4SA-DIP

GreenPAK DIP Adapter for GreenPAK Advanced Development Board

The GreenPAK™ DIP Adapter for the GreenPAK Advanced Development Board allows for using the SLG46xxxV-DIP and SLG47xxxV-DIP prototyping boards with the GreenPAK Advanced Development Board. It acts as the bridge between the advanced and DIP development platforms.

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SLG4DVKLITE

GreenPAK Lite Development Board

The GreenPAK™ Lite Development Board provides full programming, emulation, and testing functions for GreenPAK devices, working in conjunction with the Go Configure™ Software Hub. Board functionality is provided by the RX66T MCU from Renesas.

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SLG4DVKINTRO

GreenPAK Introduction Kit

The SLG4DVKINTRO GreenPAK™ Introduction Kit is an ideal starting point for customers beginning new development projects. This comprehensive kit includes the SLG4DVKADV GreenPAK Advanced Development Board and the SLG4SA-DIP Adapter, which is designed to work seamlessly with the development board.... Read More

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SLG4DVKLITEINTRO-KIT

GreenPAK Introduction Kit Lite

The SLG4DVKLITEINTRO-KIT is an all-in-one development kit designed for engineers and developers starting new projects with GreenPAK™ programmable mixed-signal ICs. The kit includes the SLG4DVKLITE Lite Development Board with USB cable and ten DIP proto boards (SLG46120V-DIP, SLG46721V-DIP,... Read More

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GreenPAK Serial Debugger Board (GSD)

The GreenPAK™ Serial Debugger (GSD) device can be used for programming GreenPAK programmable mixed-signal matrix IC products with multiple-time non-volatile memory (NVM) or for configuring the interconnect logic, the IOs, and the macrocells of all GreenPAK chips with an I²C interface. This... Read More

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RZ/G3E-EVKIT

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The RZ/G3E Evaluation Board Kit consists of a module board (SOM) and a carrier board, ideal for evaluating the features of the RZ/G3E MPU. The module board complies with the SMARC v2.1 standard and is a good reference for module board-based product development.

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SoM/SBC

RZ/G3E DX-M1 System on Module (SoM)

The RZ/G3E DX-M1 system on module (SoM) combines a powerful Renesas RZ/G3E application processor with the DEEPX DX-M1 AI Booster to deliver high-performance edge and AI computing in a compact SOM form factor. Featuring quad Cortex-A55 cores, advanced multimedia support, dual display graphics, and 25 TOPS AI acceleration, it’s ideal for industrial, vision and HMI applications requiring efficient local inference and rich connectivity like PCIe, USB3, Ethernet and high-speed camera interfaces.

Supported Products:

RZ/G3E,RAA215300,5L35023,5P35023,SLG46537,SLG46585

Provided By:

Virtium

SoM/SBC

RZ/G3E OSM-L

The RZ/G3E OSM‑L System‑on‑Module packs the Renesas RZ/G3E application processor into a compact OSM‑L form factor, combining quad Cortex‑A55 and Cortex‑M33 cores with a Mali‑G52 GPU and on‑chip Ethos‑U55 NPU for efficient edge and HMI computing. It supports dual‑display graphics, 4K video encode/decode, MIPI/parallel interfaces, Gigabit Ethernet, PCIe Gen3 and USB3.2 connectivity. Designed for industrial and multimedia applications, it delivers responsive performance with rich I/O and industrial temperature options.

Supported Products:

RZ/G3E,RAA215300,5L35023,5P35023,SLG46537,SLG46585

Provided By:

Virtium

SoM/SBC

RZ/G3E System on Module (SoM)

The RZ/G3E system on module (SoM) delivers robust edge computing and rich human-machine interface (HMI) capabilities in a compact SOM form factor. Powered by the Renesas RZ/G3E application processor with four Cortex-A55 cores, Mali-G52 graphics and an on-chip Ethos-U55 NPU, it supports dual displays, high-speed video codecs, and versatile I/O including PCIe Gen3, USB3.2 and dual Gigabit Ethernet. Ideal for industrial, multimedia and edge AI applications, it accelerates development with integrated memory, storage and broad connectivity.

Supported Products:

RZ/G3E,RAA215300,5L35023,5P35023,SLG46537,SLG46585

Provided By:

Virtium

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Software & Tools (2)

Software Package
Go Configure Software Hub
Go Configure Software Hub provides development support for a variety of products, including GreenPAK configurable mixed signal matrix and ForgeFPGA™ devices.
PCB Design Files
GreenPAK Altium Library
ZIP 10.09 MB Nov 06, 2025
The GreenPAK Altium Library is a collection of schematic symbols and physical PCB footprints for Renesas' GreenPAK and Power GreenPAK programmable mixed-signal ICs that are available for use within the Altium Designer software environment. The library allows engineers to easily incorporate these devices into their PCB designs using industry-standard CAD tools.

Discover GreenPAK^™, a configurable mixed‑signal IC platform that replaces discrete logic and streamlines system design. By combining analog, digital, and power functions in a compact, low‑power device, GreenPAK enables fast customization through an intuitive GUI without added complexity. Engineers can reduce BOM cost, lower power consumption, simplify PCB routing, accelerate time‑to‑market, and take advantage of in‑system configurability, making GreenPAK a strong fit for building smarter and more efficient designs across a wide range of applications.

The video introduces how GreenPAK^™ enables engineers to create custom mixed‑signal IC designs quickly and easily. It highlights how GreenPAK simplifies development, helping teams turn ideas into flexible, working solutions without complex hardware redesigns.

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Support Communities

SLG46537 (ASM)
Dear Support, I'm new and trying to experiment GreenPAK SLG46537 for simple applications. I have attached a waveform which is something I would like to try and explore. I'm not sure do I have to use ASM for the application? Hope there is an example to start with.
Oct 21, 2021
- Analog Products
- GreenPAK & GreenFET
SLG46537: Regarding the GSD programming and Emulation
With GSD, can I program the OTP devices like SLG46537 or it is specially for MTP devices only? SEO title edit [edited by: June at 15:45 (GMT 0) on 5 Dec 2025]
Nov 25, 2025
- Analog Products
- GreenPAK & GreenFET
Guidance on Adding I2C Node for SLG46537 Expander in DTS
Hello Renesas Support Team, We are currently developing a custom RZG3x board and have integrated an additional I/O expander, the SLG46537, which communicates via I2C. I would like to add this to the device tree source (DTS), but I am unsure of the exact location or which DTSI ...
Nov 20, 2024
- Microprocessors
- Forum

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English

GreenPAK Programmable Mixed-Signal IC, VDD Range: 1.71-5.5V, 18 GPIOs, 4 ACMPs, I2C, ASM (8 States)

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