台湾合泰HT45B0F原装正品单片机IC 检测IC HOLTEK

HT45B0F -- SPI-to-UART Bridge

General Description

The HT45B0F is microcontroller peripheral device to implement SPI-to-UART data conversions. The UART module can operate in full-duplex mode with an interrupt output capability to the host microcontroller.

Possible application could include data communication networks between microcontrollers, low-cost data links between PCs and peripheral devices, portable and battery operated devices, factory automation and process control to name but a few.

Features Operating Voltage

fCLKI= 12MHz: 2.0V~5.5V

fCLKI= 16MHz: 2.7V~5.5V

fCLKI= 20MHz: 4.5V~5.5V Glueless slave SPI interface to Holtek's MCU Full-duplex, Universal Asynchronous Receiver and Transmitter (UART) communication

-- 8 or 9 bit character length

-- Even, odd or no parity options

-- One or two stop bits

-- Baud rate generator with 8-bit prescaler

-- Parity, framing, noise and overrun error

detection

-- Support for interrupt on address detect

-- Address Detect Interrupt - last character

bit=1

-- Transmitter and receiver enabled

independently

-- 4-byte deep FIFO receiver data buffer

-- Transmit and Receive Multiple Interrupt

Generation Sources:

* Transmitter Empty

* Transmitter Idle

* Receiver Full

* Receiver Overrun

* Address Mode Detect

-- TX pin is high impedance when the

UART transmit module is disabled

-- RX pin is high impedance when the

UART receive module is disabled CMOS clock input, CLKI, up to 20MHz at 5V operating voltage 16-pin NSOP package