Description
74AC899 54ACT 74ACT899 9-Bit Latchable Transceiver with Parity Generator Checker August 1994 74AC899 54ACT 74ACT899 9-Bit Latchable Transceiver .
The ’AC ’ACT899 is a 9-bit to 9-bit parity transceiver with transparent latches The device can operate as a feedthrough transceiver or it can generate.
Features
* Y Y
Y
Y Y Y Y Y
Y
Latchable transceiver with output sink of 24 mA Option to select generate parity and check or ‘‘feedthrough’’ data parity in directions A-to-B or B-to-A Independent latch enable for A-to-B and B-to-A directions Select pin for ODD EVEN parity ERRA and ERRB output pins for parity
Applications
* in place of the ’280 May be used in system applications in place of the ’657 and ’373 (no need to change T R to check parity) 4 kV minimum ESD immunity
Logic Symbol
Connection Diagram
Pin Assignment for PCC and LCC
TL F 10637
* 1
TL F 10637
* 2
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