The 74F899QC is a 9-bit to 9-bit parity transceiver with transparent latches. The device can operate as a feed-through transceiver or it can generate/check parity from the 8-bit data busses in either direction. It has a guaranteed current sinking capability of 24 mA at the A-bus and 64 mA at the B-bus.
The 74F899QC features independent latch enables for the A-to-B direction and the B-to-A direction, a select pin for ODD/EVEN parity, and separate error signal output pins for checking parity.
Latchable transceiver with output sink of 24 mA at the A-bus and 64 mA at the B-bus
Option to select generate parity and check or "feedthrough'' data/parity in directions A-to-B or B-to-A
Independent latch enables for A-to-B and B-to-A directions
Select pin for ODD/EVEN parity
ERRA and ERRB output pins for parity checking
Ability to simultaneously generate and check parity
May be used in systems applications in place of the 'F543 and 'F280
May be used in system applications in place of the 'F657 and 'F373 (no need to change T/R to check parity)
Guaranteed 4000V min ESD protection
PLCC 28 package. Manufactured by National.