R8A66171DD

R8A66171DD/SP A2RT (ADVANCED ASYNCHRONOUS RECEIVER & TRANSMITTER) REJ03F0269-0100 Rev. 1.00 Feb.19.2008 DESCRIPTION The R8A66171 is an integrated circuit for asynchronous serial data communications. It is used in combination with an 8-bit microprocessor and is produced using the silicon gate CMOS technology. R8A66171 is the succession product of M66230. FEATURES ● Baud rate generator ● 4-byte FIFO data buffer for transmission and reception www.DataSheet4U.com ● Error detection : CRC-CCITT ● Wakeup function ● Majority-voting system by sampling three points of received data ● Transmission / reception data format ( number of bits ) Start bit 1 Data bit 8 Wakeup bit 1 or nil Parity bit 1 or nil Stop bit 1 or 2 ● Transmission speed 500Kbps (max) ● Access time ta (/RD-D) : 100ns ● High output current IOH=-24mA IOL=24mA TxD, /RTS, P0, P1 pins ● Schmitt triggered input RxD, /CTS, /RESET pins ● Wide operating supply voltage range (Vcc=3.0~3.6V or Vcc=4.5~5.5V) ● Wide operating temperature range (Ta=-40~85OC) APPLICATION Data communication control that uses microprocessor PIN CONFIGURATION (TOP VIEW) D0 D1 D2 DATA BUS D3 D4 D5 D6 D7 READ CONTROL INPUT WRITE CONTROL INPUT RD WR 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 V CC TxD RxD CTS RTS P0 P1 INT CS RESET X1 X2 TRANSMISSION DATA OUTPUT RECEPTION DATA INPUT CLEAR-TO-SEND INPUT REQUEST-TO-SEND OUTPUT PORT OUTPUT INTERRUPT OUTPUT CHIP SELECT INPUT RESET INPUT CLOCK INPUT CLOCK OUTPUT COMMAND/DATA C/D CONTR...