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CD54AC138 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. CD54AC138
Description  3-to-8-Line Decoders/Demultiplexers
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

CD54AC138 Datasheet(HTML) 1 Page - Texas Instruments

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Data sheet acquired from Harris Semiconductor
SCHS234A
Features
• ’AC138, ’ACT138. . . . . . . . . . . . . . . . . . . . . . . . Inverting
• CD74AC238, CD74ACT238 . . . . . . . . . . . Non-Inverting
• Buffered Inputs
• Typical Propagation Delay
- 5ns at VCC = 5V, TA = 25
oC, C
L = 50pF
• Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
• SCR-Latchup-Resistant CMOS Process and Circuit
Design
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50
Ω Transmission Lines
Pinout
CD54AC138, CD54ACT138
(CERDIP)
CD74AC138, CD74ACT138, CD74AC238, CD74ACT238
(PDIP, SOIC)
TOP VIEW
Description
The ’AC138, ’ACT138, CD74AC238, and CD74ACT238 are
3-to-8-line decoders/demultiplexers that utilize Advanced
CMOS Logic technology. Both circuits have three binary
select inputs (A0, A1, and A2). If the device is enabled, these
inputs determine which one of the eight normally HIGH out-
puts of the AC/ACT138 will go LOW or which on of the nor-
mally LOW outputs of the AC/ACT238 will go HIGH. Two
active LOW and one active HIGH enables (E1, E2 and E3)
are provided to simplify the cascading of these devices.
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
A0
A1
A2
E1
E2
E3
GND
AC/ACT138 Y7
VCC
Y1 AC/ACT138
Y2 AC/ACT138
Y3 AC/ACT138
Y4 AC/ACT138
Y5 AC/ACT138
Y6 AC/ACT138
Y0 AC/ACT138
AC/ACT238 Y7
Y0 AC/ACT238
Y1 AC/ACT238
Y2 AC/ACT238
Y3 AC/ACT238
Y4 AC/ACT238
Y5 AC/ACT238
Y6 AC/ACT238
Ordering Information
PART
NUMBER
TEMP.
RANGE (oC)
PACKAGE
CD54AC138F3A
-55 to 125
16 Ld CERDIP
CD74AC138E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
CD74AC138M
0 to 70oC, -40 to 85,
-55 to 125
16 Ld SOIC
CD54ACT138F3A
-55 to 125
16 Ld CERDIP
CD74ACT138E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
CD74ACT138M
0 to 70oC, -40 to 85,
-55 to 125
16 Ld SOIC
CD74AC238E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
CD74AC238M
0 to 70oC, -40 to 85,
-55 to 125
16 Ld SOIC
CD74ACT238E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
CD74ACT238M
0 to 70oC, -40 to 85,
-55 to 125
16 Ld SOIC
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all elec-
trical specifications. Please contact your local TI sales office or cus-
tomer service for ordering information.
September 1998 - Revised May 2000
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
Copyright
© 2000, Texas Instruments Incorporated.
CD54/74AC138, CD54/74ACT138,
CD74AC238, CD74ACT238
3-to-8-Line Decoders/Demultiplexers
[ /Title
(CD74
AC138
,
CD74
ACT13
8,
CD74
AC238
,
CD74
ACT23
8)
/Sub-
ject (3-
to-8-
Line
Decod-
ers/De
multi-
plex-
ers)
/Autho
r ()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
Advan
ced


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