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SN54ALS841 Datasheet(Fiches technique) 2 Page - Texas Instruments

Numéro de pièce SN54ALS841
Description  10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
Télécharger  11 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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 2 page
background image
OC
CD
Q
LH
H
L
LHL
H
LL
X
Q0
HX
X
Z
OC
CD
Q
LH
H
H
LHL
L
LL
X
Q0
HX
X
Z
INPUTS
OUTPUT
INPUTS
OUTPUT
’ALS841, ’AS841
’ALS842, ’AS842
SN54ALS841, SN54AS841, SN54ALS842, SN54AS842
SN74ALS841, SN74AS841, SN74ALS842, SN74AS842
10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
SDAS059B – D2910, DECEMBER 1983 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2
description (continued)
A buffered output control (OC) input can be used to place the ten outputs in either a normal logic state (high or
low levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus
lines significantly. The high-impedance state and increased drive provide the capability to drive the bus lines
in a bus-organized system without need for interface or pullup components.
The output control does not affect the internal operation of the latches. Old data can be retained or new data
can be entered while the outputs are off.
The - 1 versions of the SN74ALS841 and SN74ALS842 parts are identical to the standard versions except that
the recommended maximum IOL is increased to 48 mA. There are no -1 versions of the SN54ALS841 and
SN54ALS842.
The SN54ALS841, SN54AS841, SN54ALS842, and SN54AS842 are characterized for operation over the full
military temperature range of – 55
°C to 125°C. The SN74ALS841, SN74AS841, SN74ALS842, and
SN74AS842 are characterized for operation from 0
°C to 70°C.
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