HT68FB540 Datasheet | Holtek Semiconductor

Features CPU Features - Operating voltage - VDD(MCU) - f SYS= 4MHz/6MHz: 2.2V~5.5V - f SYS= 12MHz: 2.7V~5.5V - VDD(USB mode) - f SYS= 6MHz/12MHz: 3.3V~5.5V - f SYS= 16MHz: 4.5V~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 - Three oscillators: - External Crystal - HXT - Internal RC - HIRC - Internal 32k Hz RC - LIRC - Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP - 2 pact type 10-bit Timer Module - CTM - 1 Standard type 10-bit Timer Module - STM - 1 Standard type 16-bit Timer Module - STM - All instructions executed in one or two instruction cycles - Table read instructions - 62 powerful instructions - Up to 12-level subroutine nesting - Bit manipulation instruction Peripheral Features - Flash Program Memory: 4K×16~16K×16 - RAM Data Memory: 256×8~768×8 - USB 2.0 Full Speed patible - Up to 8 endpoints supported including endpoint 0 - All endpoints except endpoint 0 can support interrupt and bulk transfer - All endpoints except endpoint 0 can be configured as 8, 16, 32, 64 bytes FIFO size - Endpoint 0 support control transfer - Endpoint 0 has 8 byte FIFO - Support 3.3V LDO and internal UDP 1.5K ohm pull-up...