1.1 Features

 Fully integrated battery management solution with battery capacity measurement and programmable protection capability.

 Supports up to 5 Li-ion or Li-Polymer battery cells in series.

 Integrated with Renesas Ultra Low Power RL78 CPU core for multi-function process

 Memory

Code flash memory: 32 to 64 KB

Data flash memory (up to 100,000 erase/write cycles): 4 KB

SRAM: 1.5 to 4 KB

 Clock generator

High speed on-chip oscillator: up to 32 MHz

Low speed on-chip oscillator: 32 KHz

AFE on-chip oscillator: 4.194MHz

 General Purpose I/O Ports

Total: 11 pins

CMOS input/output: 6

CMOS input: 2

N-ch open drain: 2

High voltage output [VCC tolerance]: 1

 Serial interface

CSI (SPI): 1 channel

I2C: 1 channel

UART: 1 channel

Simplified I2C: 1 channel

 Timer

MCU 16-bit timer: 3 channels

MCU 12-bit interval timer: 1 channel

AFE timer: 2 channels

- AFE timer A: setting range: 125 ms to 64 s

- AFE timer B: setting range：30.52 us to 125 ms

 Embedded A/D converter

AFE 15-bit resolution sigma-delta A/D converter

 Current integration circuit

18-bit resolution sigma-delta A/D converter