CH9434M

WCH
CH9434 Datasheet 1 http://wch.cn 4-UART Chip CH9434 Datasheet Version: 1A http://wch.cn 1. Overview CH9434 is a SPI to 4-UART transfer chip, which provides four full duplex nine-line UARTs, and is used to extend UART for MCU/embedded system. CH9434 includes four UARTs compatible with 16C550 and supports up to 4Mbps baud rate communication. It supports up to 25-channel GPIO and provides half...
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CH9434 Datasheet 1 http://wch.cn 4-UART Chip CH9434 Datasheet Version: 1A http://wch.cn 1. Overview CH9434 is a SPI to 4-UART transfer chip, which provides four full duplex nine-line UARTs, and is used to extend UART for MCU/embedded system. CH9434 includes four UARTs compatible with 16C550 and supports up to 4Mbps baud rate communication. It supports up to 25-channel GPIO and provides half-duplex transceiver automatic switch pin TNOW. SCS# SCK MCU SDI SDO CH9434 RXD0/TXD0/CTS0/RTS0 DTR0/DSR0/DCD0/RI0/TNOW0 UART0 RXD1/TXD1/CTS1/RTS1 DTR1/DSR1/DCD1/RI1/TNOW1 UART1 RXD2/TXD2/CTS2/RTS2 DTR2/DSR2/DCD2/RI2/TNOW2 UART2 RXD3/TXD3/CTS3/RTS3 DTR3/DSR3/DCD3/RI3/TNOW3 UART3 INT# 2. Features ● Operating voltage: 3.3V ● Support communication baud rate setting, with the baud rate range of 1200-4000000bps. ●UART has an independent FIFO buffer in each direction, sending 1536 bytes and receiving 2048 bytes. ● Four fully independent UARTs, compatible with 16C550 and enhanced. ● Support 5/6/7/8 data bits and 1/2 stop bits. ●UARTs support odd, even, no parity, blank 0, mark 1 and other verification methods. ● Support the commonly used MODEM communication signals RTS, DTR, DCD, RI, DSR and CTS. ● Provide half-duplex RS485 receive/transmit enable pin. ● The maximum rate of SPI is 16Mbit/s. ● Support low power sleep mode, which can be awakened via SPI interface. ● Built-in clock, which can be provided by the optional external crystal oscillator. ● Provide configurable GPIO functions. ● Provide QFN48_5X5 lead-free package, compatible with RoHS. 3. Applications ● MCU/DSP/embedded system. ● Industrial automation RS-485 communication. ● Serial server, card with multi serial ports. ● Communicate with Bluetooth, 4G, WiFi and other serial modules to realize wireless transmission. PDF
Документация на CH9434M 

CH9434DS1

Дата модификации: 02.01.1970

Размер: 200.6 Кб

13 стр.

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