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MFG:FAIRCHILD  Package Cooled:SOP  D/C:03+  

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Part Number: 74F899

 

MFG: FAIRCHILD

Package Cooled: SOP

D/C: 03+

Description: The 74F899 is a 9-bit to 9-bit parity transceiver with transparent latches. The device can operate as a feed-through tr...


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74F899 General Description


The 74F899 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 74F899 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.

74F899 Maximum Ratings

Storage Temperature                                          -65 to +150
Ambient Temperature under Bias                        -55 to +125
Junction Temperature under Bias                        -55 to +150
VCC Pin Potential to Ground Pin                          -0.5V to +7.0V
Input Voltage (Note 3)                                          -0.5V to +7.0V
Input Current (Note 3)                                   -30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output                                                     -0.5V to VCC
3-STATE Output                                                    -0.5V to +5.5V
Current Applied to Output
in LOW State (Max)                             Twice the Rated IOL (mA)
ESD Last Passing Voltage (Min)                                        4000V

74F899 Features

`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 "feed-through" 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 74F543 and 74F280
`May be used in system applications in place of the 74F657 and 74F373 (no need to change T/R to check parity)

74F899 Connection Diagram

74F899 Connection Diagram

74F899 datasheet

74F899
PDF/DataSheet Download

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