BS83A04C Datasheet | Holtek Semiconductor

Features CPU Features - Operating Voltage - f SYS=8MHz: 1.8V~5.5V - Up to 0.5μs instruction cycle with 8MHz system clock at VDD=5V - Power down and wake-up functions to reduce power consumption - Oscillator types - Internal High Speed 8MHz RC - HIRC - Internal Low Speed 32k Hz RC - LIRC - Multi-mode operation: FAST, SLOW, IDLE and SLEEP - Fully integrated internal oscillators require no external ponents - All instructions executed in one or two instruction cycles - Table read instructions - 61 powerful instructions - 4-level subroutine nesting - Bit manipulation instruction Peripheral Features - Flash Program Memory: 1K×16 - RAM Data Memory: 128×8 - Touch Key Data Memory: 24×8 - Emulated EEPROM Memory: 32×16 - Watchdog Timer function - 8 bidirectional I/O lines - Single external interrupt pin shared with I/O pin - Single 10-bit pact Timer Module for time measure, pare match output, PWM output function - Single Time-Base function for generation of fixed time interrupt signals - I2C interface - Low voltage reset function - 4 touch key functions - Package types: 8-pin SOP, 10-pin MSOP Development Tools For rapid product development and to simplify device parameter setting, Holtek has provided relevant development tools which users can download from the following link: https://.holtek./page/tool-detail/dev_plat/touch/Touch_Workshop Rev. 1.10 October 13, 2025 BS83A04C 4-Key Touch I/O Flash MCU General Description The device is a Flash Memory type 8-bit high performance RISC architecture microcontroller with fully integrated touch key functions. With all touch key functions provided internally, this device range has all the features to offer designers a reliable and easy means of implementing Touch Keyes within their products applications. The touch key functions are fully integrated pletely eliminating the need for external ponents. For memory...