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54AC157 の電気的特性と機能

54AC157のメーカーはNational Semiconductorです、この部品の機能は「Quad 2-Input Multiplexer」です。


製品の詳細 ( Datasheet PDF )

部品番号 54AC157
部品説明 Quad 2-Input Multiplexer
メーカ National Semiconductor
ロゴ National Semiconductor ロゴ 




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54AC157 Datasheet, 54AC157 PDF,ピン配置, 機能
www.DataSheet4U.com
July 1998
54AC157 54ACT157
Quad 2-Input Multiplexer
General Description
The ’AC/’ACT157 is a high-speed quad 2-input multiplexer.
Four bits of data from two sources can be selected using the
common Select and Enable inputs. The four outputs present
the selected data in the true (noninverted) form. The ’AC/
’ACT157 can also be used as a function generator.
Features
n ICC and IOZ reduced by 50%
n Outputs source/sink 24 mA
n ’ACT157 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC157: 5962-89539
— ’ACT157: 5962-89688
Logic Symbols
IEEE/IEC
DS100272-1
Pin Names
I0a– I0d
I1a– I1d
E
S
Za– Zd
Connection Diagrams
Pin Assignment
for DIP and Flatpak
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
DS100272-2
Pin Assignment
for LCC
DS100272-3
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100272
DS100272-4
www.national.com

1 Page





54AC157 pdf, ピン配列
Absolute Maximum Ratings (Note 1)
Recommended Operating
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
CDIP
−0.5V to +7.0V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±50 mA
±50 mA
−65˚C to +150˚C
175˚C
Conditions
Supply Voltage (VCC)
’AC
2.0V to 6.0V
’ACT
4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
54AC/ACT
0V to VCC
0V to VCC
−55˚C to +125˚C
Minimum Input Edge Rate (V/t)
’AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (V/t)
125 mV/ns
’ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACTcircuits outside databook specifications.
DC Characteristics for ’AC Family Devices
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
VOL Maximum Low Level
Output Voltage
IIN
IOLD
IOHD
Maximum Input
Leakage Current
Minimum Dynamic
Output Current (Note 3)
54AC
VCC
TA =
(V) −55˚C to +125˚C
Guaranteed Limits
3.0 2.1
4.5 3.15
5.5 3.85
3.0 0.9
4.5 1.35
5.5 1.65
3.0 2.9
4.5 4.4
5.5 5.4
3.0 2.4
4.5 3.7
5.5 4.7
3.0 0.1
4.5 0.1
5.5 0.1
3.0 0.50
4.5 0.50
5.5 0.50
5.5 ±1.0
5.5 50
5.5 −50
Units
Conditions
VOUT = 0.1V
V or VCC − 0.1V
VOUT = 0.1V
V or VCC − 0.1V
IOUT = −50 µA
V
(Note 2)
VIN = VIL or VIH
IOH = −12 mA
V IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
V
(Note 2)
VIN = VIL or VIH
IOL = 12 mA
V IOL = 24 mA
IOL = 24 mA
µA VI = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
3 www.national.com


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共有リンク

Link :


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