Datasheet Holtek BA45F5420

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Detailed Description

The BA45F5420 is an 8-bit high performance RISC architecture microcontroller, which integrates a smoke detector AFE and a dual channel IR LED constant driving circuit, designed especially for Stand-alone type Smoke Detector alarm applications.

For memory features, the Flash Memory offers users the convenience of multi-programming features.

Other memory includes an area of RAM Data Memory as well as an area of Emulated EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc.

Analog features include a multi-channel 10-bit A/D converter, two internal operational amplifiers and an internal TinyPower LDO which allows input voltages as high as 12V and provides a fixed 3.3V voltage. One extremely flexible Timer Module provides timing, pulse generation and PWM generation functions. Protective features such as an internal Watchdog Timer and Low Voltage Reset function coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments.

Manufacturer's Classification

• Security & Safety > Security & Safety MCU > 9V Battery Smoke Detector Flash MCU