54ACT16657 - Texas Instruments

54ACT16657 16-BIT TRANSCEIVERS

The ’ACT16657 contain two noninverting octal transceiver sections with separate parity generator/checker circuits and control signals. For either section, the transmit/receive (1T/R or 2T/R) input determines the direction of data flow. When 1T/R (or 2T/R) is high, data flows from the 1A (or 2A) port to the 1B (or 2B) port (transmit mode); when 1T/R (or 2T/R).

Features

2B) port (transmit mode); when 1T/R (or 2T/R) is low, data flows from the 1B (or 2B) port to the 1A (or 2A) port (receive mode). When the output-enable (1OE or 2OE) input is high, both the 1A (or 2A) and 1B (or 2B) ports are in the high-impedance state. 54ACT16657 . . . WD PACKAGE 74ACT16657 . . . DL PACKAGE (TOP VIEW) 1OE 1 NC 2 1ERR 3 GND 4 1A1 5 1A2 6 VCC 7 1A3 8 1A4 9 1A5 10 GND 11 1A6 12 1A7 13 1A8 14 2A1 15 2A2 16 2A3 17 GND 18 2A4 19 2A5 20 2A6 21 VCC 22 2A7 23 2A8 24 GND 25 2ERR 26 NC 27 2OE 28 56 1T/R 55 1ODD/EVEN 54 1PARITY 53 GND 52 1B1 51 1B2 50 VCC 49 1B3 48 1B4 47 1B5 46 GND .