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PDF 74F243 Data sheet ( Hoja de datos )
| Número de pieza | 74F243 | |
| Descripción | Quad Bus Transceiver with 3-STATE Outputs | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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April 1988
Revised July 1999
74F243
Quad Bus Transceiver with 3-STATE Outputs
General Description
The 74F243 is a quad bus transmitter/receiver designed for
4-line asynchronous 2-way data communications between
data busses.
Features
s 2-Way asynchronous data bus communication
s Input clamp diodes limit high-speed termination effects
Ordering Code:
Order Code Package Number
Package Description
74F243SC
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
IEEE/IEC
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
Inputs
E1
L
L
H
H
Z = High Impedance
N/A = Not Allowed
E2
L
H
L
H
Unit Loading/Fan Out
Inputs/Outputs
An
Input
N/A
Z
A=B
Bn
B=A
N/A
Z
Input
Pin
Names
Description
U.L.
Input IIH/IIL
HIGH/LOW Output IOH/IOL
E1
E2
An, Bn
Enable Input (Active LOW)
Enable Input (Active HIGH)
Inputs
Outputs
1.0/1.67
1.0/1.67
3.5/2.67
600/106.6
(80)
20 µA/−1 mA
20 µA/−1 mA
70 µA/−1.6 mA
−12 mA/64 mA
(48 mA)
© 1999 Fairchild Semiconductor Corporation DS009502
www.fairchildsemi.com
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet 74F243.PDF ] | |
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