BA45F5440
BA45F5440 is 9V High Voltage Smoke Detector Flash MCU manufactured by Holtek Semiconductor.
Features
CPU Features
- Operating Voltage
- f SYS=2MHz/4MHz/8MHz: 3.3V
- Up to 0.5μs instruction cycle with 8MHz system clock at VDD=3.3V
- Power down and wake-up functions to reduce power consumption
- Oscillator types
- Internal High Speed 2/4/8MHz RC
- HIRC
- Internal 32k Hz RC
- LIRC
- Multi-mode operation: FAST, SLOW, IDLE and SLEEP
- Fully integrated internal oscillators require no external ponents
- All instructions executed in 1~3 instruction cycles
- Table read instructions
- 115 powerful instructions
- 8-level subroutine nesting
- Bit manipulation instruction
Peripheral Features
- Flash Program Memory: 4K×16
- RAM Data Memory: 256×8
- True EEPROM Memory: 64×8
- Watchdog Timer function
- Up to 9 bidirectional I/O lines
- One external interrupt line shared with I/O pin
- Programmable I/O port source current for LED applications
- Sink current generator for constant current output
- Smoke Detector AFE including two operational amplifiers
- Multiple Timer Modules for time measure, input capture, pare match output, PWM output or single pulse output function
- Dual Time-Base functions for generation of fixed time interrupt signals
- Universal Serial Interface Module
- USIM for SPI, I2C or UART munication
- 4 external channel 12-bit resolution A/D converter with internal reference voltage VBGREF
- Low voltage reset function
- Low voltage detect function
- 12V/30m A Tiny Power LDO
- Piezoelectric Horn Driver for alarm
- Package types: 20-pin SOP/SSOP
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