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器件描述：Octal Bidirectional Transceiver with TRI-STATE Outputs
器件厂商：NSC [National Semiconductor]
厂商主页：http://www.national.com
文件大小：261.98KB
文件页数：10
PDF阅读：54ABT245W-QML.pdf (点击阅读器件资料)
摘要：
54ABT245
Octal Bidirectional Transceiver with TRI-STATE
?
Outputs
General Description
The ’ABT245 contains eight non-inverting bidirectional buff-
ers with TRI-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 48 mA on both the
A and B ports. The Transmit/Receive (T/R) input determines
the direction of data flow through the bidirectional trans-
ceiver. Transmit (active HIGH) enables data from A ports to B
ports; Receive (active LOW) enables data from B ports to A
ports. The Output Enable input, when HIGH, disables both A
and B ports by placing them in a High Z condition.
Features
n Bidirectional non-inverting buffers
n A and B output sink capability of 48 mA, source
capability of 24 mA
n Guaranteed output skew
n Guaranteed multiple output switching specifications
n Output switching specified for both 50 pF and 250 pF
loads
n Guaranteed simultaneous switching, noise level and
dynamic threshold performance
n Guaranteed latchup protection
n High impedance glitch-free bus loading during entire
power up and power down cycle
n Non-destructive hot insertion capability
n Disable time is less than enable time to avoid bus
contention
n Standard Microcircuit Drawing (SMD) 5962-9214801
Ordering Code:
Military Package Package Description
Number
54ABT245J-QML J20A 20-Lead Ceramic Dual-In-Line
54ABT245W-QML W20A 20-Lead Cerpak
54ABT245E-QML E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Logic Symbol
TRI-STATE
?
is a registered trademark of National Semiconductor Corporation.
DS100204-1
July 1998
54ABT245
Octal
Bidirectional
T
ransceiver
with
TRI-ST
A
T
E
Outputs
? 1998 National Semiconductor Corporation DS100204 www.national.com
相关器件：54ABT245J-QML 54ABT245 54ABT245E-QML
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