台湾合泰HT45B0K原装正品单片机IC 检测IC HOLTEK

HT45B0K -- SPI to USB Bridge

General Description

This device is a companion chip for microcontrollers to provide USB connectivity with the USB host. Six USB endpoints are supported with 8/8/8/64/8/64-byte FIFO for endpoint 0~5 respectively. An external interrupt output to the host MCU is used for inetrrupt-driven operation. However, the host MCU may also poll the status register to obtain the latest status if the interrupt is not used.

The possible applications include low-cost data links for computers/peripherals, portable and battery operated devices/instruments, factory automation and process control.

Features Glueless slave SPI interface to Holtek's MCU USB (Universal Serial Bus) 1.1 Full-speed module

- 6 endpoints (endpoint 0 included)

- FIFO: 8, 8, 8, 64, 8, 64 for EP0~EP5 respectively Operating voltage: VDD= 3.3V~5.5V 6MHz/12MHz (CLKI) external clock input for USB PLL clock Suspend Mode with low suspend current Remote Wake-up function USB Multiple Interrupt Generation Sources:

- Access of the corresponding USB FIFO

from the USB host

- USB suspend signal from the USB host

- USB resume signal from the USB host

- USB Reset signal from the USB host CMOS external clock input, CLKI, with frequency 6MHz/12MHz for the USB PLL clock 16-pin NSOP package