74F2245SC NSC [National Semiconductor], 74F2245SC Datasheet

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74F2245SC

Manufacturer Part Number
74F2245SC
Description
Octal Bidirectional Transceiver with TRI-STATE Outputs
Manufacturer
NSC [National Semiconductor]
Datasheet
C 1996 National Semiconductor Corporation
74F2245
Octal Bidirectional Transceiver with TRI-STATE Outputs
General Description
The ’F2245 contains eight non-inverting bidirectional buffers
with TRI-STATE outputs and is intended for bus-oriented
applications Current sinking capability is 24 mA at the A
ports and 12 mA at the B ports The Transmit Receive
(T R) input determines the direction of data flow through
the bidirectional transceiver Transmit (active HIGH) en-
ables 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
The 25
eliminate the need for external resistors
Logic Symbols
TRI-STATE is a registered trademark of National Semiconductor Corporation
series resistors in the outputs reduce ringing and
Note 1 Devices also available in 13 reel Use suffix
74F2245SC (Note 1)
Commercial
TL F 12151
Package
M20B
Number
TL F 12151– 1
20-Lead (0 300 Wide) Molded Small Outline JEDEC
e
SCX
Features
Y
Y
Y
Y
Y
Y
Non-inverting buffers
Bidirectional data path
A outputs sink 24 mA
B outputs sink 12 mA
25
external resistors
Guaranteed 2000V minimum ESD protection
Package Description
series resistors in B outputs eliminate the need for
RRD-B30M126 Printed in U S A
IEEE IEC
http
November 1996
www national com
TL F 12151– 2

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74F2245SC Summary of contents

Page 1

... The 25 series resistors in the outputs reduce ringing and eliminate the need for external resistors Package Commercial Number 74F2245SC (Note 1) M20B Note 1 Devices also available in 13 reel Use suffix Logic Symbols TRI-STATE is a registered trademark of National Semiconductor Corporation C 1996 National Semiconductor Corporation ...

Page 2

Connection Diagram Unit Loading Fan Out Pin Names Description OE Output Enable Input (Active LOW Transmit Receive Input A –A Side A Inputs TRI-STATE Outputs B –B Side B Inputs TRI-STATE Outputs ...

Page 3

Absolute Maximum Ratings Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias Plastic b V Pin Potential to CC Ground Pin Input Voltage (Note 2) Input Current (Note Voltage Applied to Output ...

Page 4

DC Electrical Characteristics Symbol Parameter I Output Short-Circuit Current OS I Bus Drainage Test ZZ I Power Supply Current CCH I Power Supply Current CCL I Power Supply Current CCZ AC Electrical Characteristics Symbol Parameter t Propagation Delay PLH t ...

Page 5

5 http www national com ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead (0 300 Wide) Molded Small Outline Package JEDEC (S) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN ...

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