Renesas introduces the RL78/I1C - Industry’s lowest power microcontrollers for high-end Smart electricity meter market!

 

RL78/I1C microcontrollers feature integrated functions for high precision smart electricity metering, such as 24-bit Delta-Sigma A/D operation, AES H/W integration, up to 256 KB flash line-up, a 32-bit MAC (Multiply and Accumulation) function, independent power supply for RTC and enhance battery pin (Vbat) function for AC-off operation, and Hardware zero cross detection. Performance is enhanced with a high temperature coefficient internal reference voltage. A segment LCD driver supports 8-COM.

 

Main Solutions

Key Features:

Item RL78/I1C
Pin Count 64-pin 80-pin 80-pin 100-pin
Part Name R5F10NLE/G R5F10NME/G R5F10NMJ R5F10NPJ/G
Program Flash 64KB - 128KB 64KB - 128KB 256KB 128KB - 256KB
Data flash 2KB
SRAM 6KB - 8KB 6KB - 8KB 16KB 8KB - 16KB
System Clock External High Speed Clock 1MHz~20MHz, Low Speed Clock 32.768KHz
On Chip Oscillator Clock HS 1.5MHz~24MHz, MS 1MHz~4MHz, LS 15kHz
PLL Clock - 32KHz
HOCO Clock Frequency Correction Function Support
24-bit ΔƩ A/D Convertor Input Channel Number 4ch 3ch 3ch 4ch
SNDR ~80dB (Gain x 1)
Sampling Frequency 3.906kHz/1.953kHz
PGA x1, x2, x4, x8, x16, x32
Internal Ref. (Temperature coefficient) 0.8V (10ppm/°C)
Zero Cross Detection HW Zero Cross Detection
8/10-bit A/D Convertor 4ch 6ch
32-bit Multiply- Accumulator Support
LCD Segment//COM 15/8, 19/4 30/8, 34/4 30/8, 34/4 38/8, 42/4
LCD Drive Voltage Generation Method Int. Voltage Boost/ Capacitor Split/ Ext. Resistance Split Division
Timer Function 16-bit Timer Array Unit : 8ch, 12-bit Interval Timer: 1ch, 8-bit Interval Timer: 4ch
Independent Power Supply RTC 1ch
Serial I/F CSI0/UART0/Simple I2C0 1ch
CSI1/UART1/ Simple I2C1 1ch
UART2/IrDA - 1ch
CSI3/UART3/ Simple I2C3   1ch
Multi-Master I2C 1ch
Data Transfer Controller 29 Sources 31 Sources
Event Link Controller Event Generator 22Types, Event Output Selection 5 Types
Battery Backup Function CPU VDD/VBAT
ΔƩ A/D Convertor VDD/VBAT
RTC VRTC (Independent Power Supply)
Voltage Detection (LVD) Internal VDD, VDD pin, VBAT pin, VRTC pin, External pin
AES HW Cipher Modes GCM/ECB/CBC, Encryption key length 128/192/256-bit
Key Interrupt Function 5-pin 8-pin
Other Peripheral Function Watch Dog Timer, Power On Reset (POR), Safety Functions
Power Supply Voltage Range 1.7V~5.5V
Operating Ambient Temperature - 40 to 85°C

Pin Count / Memory Size Lineup:

Program Flash
SRAM

256KB
16KB
 
128KB
8KB
64KB
6KB
 
Pins
Package
64
LFQFP
80
LFQFP
100
LFQFP

 

Block Diagram:

 

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