Datasheet4U Logo Datasheet4U.com

CH9434 Datasheet 4-uart Chip

Manufacturer: Unknown Manufacturer

Overview: 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 patible with 16C550 and supports up to 4Mbps baud rate munication. It supports up to 25-channel GPIO and provides half-duplex transceiver automatic switch pin TNOW. MCU SCS# SCK SDI SDO INT# CH9434 RXD0/TXD0/CTS0/RTS0 DTR0/DSR0/DCD0/RI0/TNOW0 RXD1/TXD1/CTS1/RTS1 DTR1/DSR1/DCD1/RI1/TNOW1 RXD2/TXD2/CTS2/RTS2 DTR2/DSR2/DCD2/RI2/TNOW2 RXD3/TXD3/CTS3/RTS3 DTR3/DSR3/DCD3/RI3/TNOW3 UART0 UART1 UART2 UART3 2.

Datasheet Details

Part number CH9434
Manufacturer Unknown Manufacturer
File Size 192.25 KB
Description 4-UART Chip
Datasheet CH9434-ETC.pdf

Key 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.

More Datasheets from Unknown Manufacturer

Part Number Description
CH9121 Network and UART Transparent Transmission
CH9340 USB to UART

CH9434 Distributor