Name: RL78/I1C - Ultra-low Power Microcontrollers for High-end Smart Electricity Meter Market
Brand: Renesas Electronics Corporation
SKU: RL78/I1C - Ultra-low Power Microcontrollers for High-end Smart Electricity Meter Market
Price: 2.41588 USD
Availability: InStock

Features

CPU: RL78 core, Max. 32MHz
Voltage: 1.7V to 5.5V
Package: 64 to 100-pin QFP
Memory: SRAM Max. 32KB, Program Flash Max. 512KB

Find Other Products in RL78 Low-Power 8 & 16-Bit MCUs

Description

The RL78/I1C microcontroller integrates functions required for the metrology of smart electricity meters. It includes 24-bit ΔΣ A/D converters, 32-bit multiply-accumulator, independent power supply real-time clock, segment LCD driver supporting up to 8 com, and AES hardware engine that supports the DLMS standard. For single-phase two-wire meters, single-phase three-wire meters, and three-phase three-wire meters, 24-bit ΔΣ A/D converters (Max 4ch) are used for current and voltage sensing to achieve highly accurate power metrology.

Moreover, three-phase four-wire meters can be supported by the 100-pin QFP products, with ΔΣ A/D converters that are used for current sensing and a successive approximation A/D converter unit that is used for voltage sensing.

In addition, the products equipped with 512KB flash memory can also use the code flash area as two partitions, that is 256KB x 2 banks, independently. Thanks to the bank programming function in dual-bank mode and bank swapping, the system can update the firmware without stopping the metrology operation throughout the new firmware downloading and even the bank swapping period.

Parameters

Attributes	Value
Program Memory (KB)	64, 128, 256, 512
Data Flash (KB)	2
RAM (KB)	6, 8, 16, 32
Carrier Type	Full Carton (Tray), Full Tray (Tray), Tape & Reel
Supply Voltage (V)	-
I/O Ports	35, 52, 60, 68, 76
Temp. Range (°C)	Ta = -40 to +85
Operating Freq (Max) (MHz)	24, 32
USB FS (host ch/device ch)	( 0 / 0 )
SCI or UART (ch)	3, 4, 5, 7
SPI (ch)	2, 3
I2C (#)	3, 4
CAN (ch)	0
CAN-FD (ch)	0
Wireless	No
LIN (#)	1
16-Bit Timer (ch) (#)	8, 10
12-Bit A/D Converter (ch)	0, 4, 6
10-Bit A/D Converter (ch)	0, 4, 6
24-Bit Sigma-Delta A/D Converter (ch)	3, 4
12-Bit D/A Converter (ch)	0
10-Bit D/A Converter (ch) (#)	0
8-Bit D/A Converter (ch)	0
Capacitive Touch Sensing Unit (ch)	0
Segment LCD Controller	Yes
Security & Encryption	AES

Package Options

Pkg. Type	Pkg. Dimensions (mm)	Lead Count (#)	Pitch (mm)
LFQFP	10 x 10 x 1.7	64	0.5
LFQFP	12 x 12 x 1.7	80	0.5
LFQFP	12 x 12 x 1.6	80	0.5
LFQFP	14 x 14 x 1.7	100	0.5

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