DM74LS243N Fairchild Semiconductor, DM74LS243N Datasheet

IC TXRX BUS QUAD 4LINE 14-DIP

DM74LS243N

Manufacturer Part Number
DM74LS243N
Description
IC TXRX BUS QUAD 4LINE 14-DIP
Manufacturer
Fairchild Semiconductor
Series
74LSr
Datasheet

Specifications of DM74LS243N

Logic Type
Transceiver, Non-Inverting
Number Of Elements
1
Number Of Bits Per Element
4
Current - Output High, Low
15mA, 24mA
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74LS243
74LS243N
© 2000 Fairchild Semiconductor Corporation
DM74LS243M
DM74LS243N
DM74LS243
Quadruple Bus Transceiver
General Description
This four data line transceiver is designed for asynchro-
nous two-way communications between data buses. It can
be used to drive terminated lines down to 133 .
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Order Number
Package Number
M14A
N14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DS006412
Features
Function Table
I
O
H
L
Note 1: Possibly destructive oscillation may occur if the transceivers are
enabled in both directions at once.
Input
Two-way asynchronous communication between data
buses
PNP inputs reduce DC loading on bus line
Hysteresis at data inputs improves noise margin
LOW Logic Level
Output
HIGH Logic Level
G AB
Package Description
H
H
L
L
Control
Inputs
GBA
H
H
L
L
August 1986
Revised January 2000
(Note 1)
A
O
I
www.fairchildsemi.com
ISOLATED
Data Port
Status
(Note 1)
O
B
I

Related parts for DM74LS243N

DM74LS243N Summary of contents

Page 1

... Package Number DM74LS243M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow DM74LS243N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Absolute Maximum Ratings Supply Voltage Input Voltage Any Operating Free Air Temperature Range Storage Temperature Range Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V HIGH Level Input Voltage IH V LOW Level Input Voltage ...

Page 3

Switching Characteristics Symbol Parameter t Propagation Delay Time PLH LOW-to-HIGH Level Output t Propagation Delay Time PHL HIGH-to-LOW Level Output t Output Enable Time PZL to LOW Level t Output Enable Time ...

Page 4

Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow www.fairchildsemi.com Package Number M14A 4 ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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