HT66F3185-1 Datasheet | Holtek Semiconductor

A/D Flash MCU with EEPROM HT66F3185/HT66F3185-1 Revision: V2.00 Date: March 03, 2026 HT66F3185/HT66F3185-1 A/D Flash MCU with EEPROM Note that the HT66F3185-1 device, although mentioned in this datasheet, has already been phased out and is presently no longer available. Features CPU Features - Operating Voltage - f SYS=8MHz: 1.8V~5.5V - f SYS=12MHz: 2.7V~5.5V - f SYS=16MHz: 3.3V~5.5V - Up to 0.25μs instruction cycle with 16MHz system clock at VDD=5V - Power down and wake-up functions to reduce power consumption - Oscillator types - External High Speed Crystal - HXT - Internal High Speed 8/12/16MHz RC - HIRC - External Low Speed 32.768k Hz Crystal - LXT - 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 1~3 instruction cycles - Table read instructions - 115 powerful instructions - 8-level subroutine nesting - Bit manipulation instruction Peripheral...