1.1 Features
 Fully integrated battery management solution with battery capacity measurement and programmable protection capability.
 Supports 2-4 series Li-ion or Li-Polymer battery cells
 Integrated with Renesas Ultra Low Power RL78 CPU core for multi-function process
 Memory
Code flash memory: 64KB
Data flash memory (up to 100,000 erase/write cycles): 4 KB
SRAM: 4 KB
 Clock generator
High speed on-chip oscillator: up to 32 MHz
Low speed on-chip oscillator: 15 KHz
AFE on-chip oscillator: 4.194MHz
 General Purpose I/O Ports
Total: 12 pins
CMOS input/output: 6
CMOS input: 2
N-ch open drain: 2
High voltage input [VCC tolerance]: 1
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: 5 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
 Impedance measurement circuit
Simultaneous measurement of battery voltage and current
 Over current detection circuit
Short circuit current detection
Charge overcurrent detection
Discharge overcurrent detection
Charge wakeup current detection
Discharge wakeup current detection
 Series regulator
3.3V CREG2
1.8V CREG1
 Charge and Discharge MOSFET control
High side Nch MOSFET drive circuit embedded
Programmable MOSFET control by 8-bit PWM
 Fuse control
FUSEOUT pin can support fuse blow function.
 Support Intel® Dynamic Battery Power Technology (Intel® DBPT) Note
 Voltage and temperature condition
Power supply voltage: VCC = 4.0 to 25 V
Operating ambient temperature: Ta = -20 to +85°C
 Package Information
32 pin plastic mold QFN
([Body] 4.0 mm x 4.0 mm, 0.4 mm pitch)