54FCT245DMQB National Semiconductor, 54FCT245DMQB Datasheet

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54FCT245DMQB

Manufacturer Part Number
54FCT245DMQB
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of 54FCT245DMQB

Logic Family
FCT
Operating Supply Voltage (typ)
5V
Propagation Delay Time
11ns
Number Of Elements
1
Number Of Channels
8
Input Logic Level
TTL
Output Logic Level
TTL
Output Type
3-State
Package Type
CDIP
Polarity
Non-Inverting
Logical Function
Bus Transceiver
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Technology
CMOS
Operating Temp Range
-55C to 125C
Operating Temperature Classification
Military
Mounting
Through Hole
Pin Count
20
Lead Free Status / Rohs Status
Not Compliant

Available stocks

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Manufacturer
Quantity
Price
Part Number:
54FCT245DMQB
Manufacturer:
INTERSIL
Quantity:
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54FCT245DMQB
Quantity:
4 587
© 1998 National Semiconductor Corporation
54FCT245
Octal Bidirectional Transceiver with TRI-STATE
General Description
The ’FCT245 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.
Ordering Code:
Logic Symbol
TRI-STATE
54FCT245DMQB
54FCT245FMQB
54FCT245LMQB
®
is a registered trademark of National Semiconductor Corporation.
Military
Package
Number
J20A
W20A
E20A
DS100950
20-Lead Ceramic Dual-In-Line
20-Lead Cerpak
20-Lead Ceramic Leadless Chip Carrier, Type C
Features
n TTL input and output level compatible
n A and B output sink capability of 48 mA, source
n CMOS power consumption
n Standard Microcircuit Drawing (SMD) 5962-8762901
capability of 12 mA
DS100950-1
Package Description
®
Outputs
www.national.com
August 1998

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54FCT245DMQB Summary of contents

Page 1

... 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. Ordering Code: Military Package Number 54FCT245DMQB J20A 54FCT245FMQB W20A 54FCT245LMQB E20A Logic Symbol TRI-STATE ® ...

Page 2

Connection Diagrams Pin Assignment for DIP and Flatpak. DS100950-5 Logic Diagram www.national.com Pin Assignment for LCC Pin Descriptions Pin Names Description OE Output Enable Input (Active LOW) T/R Transmit/Receive Input A –A Side A Inputs or TRI-STATE Outputs 0 7 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias Ceramic V Pin Potential to CC Ground Pin Input Voltage (Note 2) Input Current (Note 2) − ...

Page 4

AC Electrical Characteristics Symbol Parameter t Propagation Delay PLH t Data to Outputs PHL t Output Enable PZH t Time PZL t Output Disable PHZ t Time PLZ Capacitance Symbol Parameter C Input Capacitance IN C (Note 4) I/O Capacitance ...

Page 5

AC Waveforms FIGURE 4. Propagation Delay Waveforms for Inverting and Non-Inverting Functions DS100950-8 FIGURE 5. TRI-STATE Output HIGH and LOW Enable and Disable Times 5 DS100950-10 www.national.com ...

Page 6

6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Ceramic Dual-In-Line Package (D) 20-Terminal Ceramic Chip Carrier (L) NS Package Number E20A NS Package Number J20A 7 www.national.com ...

Page 8

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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