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74ABT16245
16-Bit Transceiver with TRI-STATE Outputs
TL/F/10986
54ABT/74ABT16245
16-Bit
Transceiver
with
TRI-STATE
Outputs
August 1996
54ABT/74ABT16245
16-Bit Transceiver with TRI-STATEÉ Outputs
General Description
The ’ABT16245 contains sixteen non-inverting bidirectional
bufferswith TRI-STATE outputsandis intendedforbusori-
ented applications.The deviceis byte controlled. Each byte
has separate control inputs whichcanbe shorted together
forfull 16-bit operation.The T/R inputs determinethe direc-
tionof data flow throughthe device.TheOE inputs disable
boththeAand Bportsby placing themina high impedance
state.
Features Bidirectional non-inverting buffers Separate control logicfor each byte 16-bit versionofthe ’ABT245A andB output sink capabilityof64 mA, source capa-
bilityof32mA Guaranteed output skew Guaranteed multiple output switching specifications Output switching specifiedfor both50pF and 250pF
loads Guaranteed simultaneous switching noise leveland
dynamic threshold performance Guaranteed latchup protection High impedance glitch free bus loading during entire
powerupand power down cycle Non-destructivehot insertion capability Standard Military Drawing (SMD) 5962-9317501
Commercial Military Package PackageDescriptionNumber
74ABT16245CSSC (Note1) MS48A 48-Lead (0.300× Wide) Molded Shrink Small Outline,
JEDEC (SSOP)
74ABT16245CMTD(Notes1,2) MTD48 48-Lead Molded ThinShrink Small Outline,JEDEC (TSSOP)
54ABT16245W/883 WA48A 48-Lead Cerpack
Note1: Devicesalso availablein13×reel.Use suffixe SSCXand MTDX.
Note2: Contact factoryfor package availability.
Logic Symbol
TL/F/10986–1
Pin Description
Pin Names Description
OEn Output Enable Input(Active Low)
T/Rn Transmit/Receive Input
A0–A15 SideA Inputs/Outputs
B0–B15 SideB Inputs/Outputs
Connection Diagram
PinAssignmentfor SSOP
TL/F/10986–2
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorporation.
C1996National SemiconductorCorporation RRD-B30M96/Printed inU.S.A. http://
