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PDF 74F2243 Data sheet ( Hoja de datos )
| Número de pieza | 74F2243 | |
| Descripción | Quad Bus Transceiver with 25W Series Resistors in the Outputs | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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October 1988
Revised August 1999
74F2243
Quad Bus Transceiver
with 25Ω Series Resistors in the Outputs
General Description
The 74F2243 is a quad bus transmitter/receiver which can
be used for 4-line asynchronous 2-way data communica-
tions between data busses. It is designed to drive the
capacitive inputs of MOS memory drivers, address drivers,
clock drivers, and bus-oriented transmitters/receivers.
The 25Ω series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
s 25Ω series resistors in outputs eliminate the need for
external resistors
s 2-Way asynchronous data bus communication
s 3-STATE outputs
s 12 mA source current
s Designed to drive the capacitive inputs of MOS devices
Ordering Code:
Order Number Package Number
Package Description
74F2243SC
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
Inputs
E1 E2
LL
LH
HL
HH
H = HIGH Voltage Level
L = LOW Voltage Level
Inputs/Outputs
An Bn
Input
B=A
N/A N/A
ZZ
A=B
Input
Z = High Impedance
N/A = Not Allowed
Unit Loading/Fan Out
Pin Names
Description
E1
E2
An, Bn
Enable Input (Active LOW)
Enable Input (Active HIGH)
Inputs
Outputs
U.L.
HIGH/LOW
1.0/1.67
1.0/1.67
3.5/2.67
750/20
Input IIH/IIL
Output IOH/IOL
20 µA/−1 mA
20 µA/−1 mA
70 µA/−1.6 mA
−15 mA/12 mA
© 1999 Fairchild Semiconductor Corporation DS009530
www.fairchildsemi.com
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet 74F2243.PDF ] | |
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