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CD54AC138_14

更新时间： 2024-09-16 02:58:51
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德州仪器 - TI /
页数 文件大小 规格书
7页 39K
描述
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

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CD54AC138_14 数据手册

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CD54/74AC138, CD54/74ACT138,  
CD74AC238, CD74ACT238  
Data sheet acquired from Harris Semiconductor  
SCHS234A  
3-to-8-Line Decoders/Demultiplexers  
September 1998 - Revised May 2000  
Features  
Description  
• ’AC138, ’ACT138. . . . . . . . . . . . . . . . . . . . . . . . Inverting The ’AC138, ’ACT138, CD74AC238, and CD74ACT238 are  
3-to-8-line decoders/demultiplexers that utilize Advanced  
CMOS Logic technology. Both circuits have three binary  
• CD74AC238, CD74ACT238 . . . . . . . . . . . Non-Inverting  
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.  
• Buffered Inputs  
• Typical Propagation Delay  
o
- 5ns at V  
CC  
= 5V, T = 25 C, C = 50pF  
A L  
• Exceeds 2kV ESD Protection MIL-STD-883, Method  
3015  
[ /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  
Ordering Information  
• SCR-Latchup-Resistant CMOS Process and Circuit  
Design  
PART  
NUMBER  
TEMP.  
RANGE ( C)  
o
• Speed of Bipolar FAST™/AS/S with Significantly  
Reduced Power Consumption  
PACKAGE  
CD54AC138F3A  
CD74AC138E  
-55 to 125  
o
16 Ld CERDIP  
• Balanced Propagation Delays  
0 to 70 C, -40 to 85, 16 Ld PDIP  
-55 to 125  
• AC Types Feature 1.5V to 5.5V Operation and  
Balanced Noise Immunity at 30% of the Supply  
o
CD74AC138M  
0 to 70 C, -40 to 85, 16 Ld SOIC  
-55 to 125  
• ±24mA Output Drive Current  
- Fanout to 15 FAST™ ICs  
CD54ACT138F3A  
CD74ACT138E  
-55 to 125  
o
16 Ld CERDIP  
0 to 70 C, -40 to 85, 16 Ld PDIP  
-55 to 125  
- Drives 50Ω Transmission Lines  
o
CD74ACT138M  
CD74AC238E  
CD74AC238M  
CD74ACT238E  
CD74ACT238M  
NOTES:  
0 to 70 C, -40 to 85, 16 Ld SOIC  
-55 to 125  
Pinout  
o
0 to 70 C, -40 to 85, 16 Ld PDIP  
CD54AC138, CD54ACT138  
-55 to 125  
(CERDIP)  
CD74AC138, CD74ACT138, CD74AC238, CD74ACT238  
(PDIP, SOIC)  
o
0 to 70 C, -40 to 85, 16 Ld SOIC  
-55 to 125  
o
TOP VIEW  
0 to 70 C, -40 to 85, 16 Ld PDIP  
-55 to 125  
o
0 to 70 C, -40 to 85, 16 Ld SOIC  
-55 to 125  
V
A0  
A1  
A2  
E1  
E2  
E3  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
CC  
Y0 AC/ACT138  
Y0 AC/ACT238  
1. When ordering, use the entire part number. Add the suffix 96 to  
obtain the variant in the tape and reel.  
Y1 AC/ACT138  
Y1 AC/ACT238  
Y2 AC/ACT138  
Y2 AC/ACT238  
Y3 AC/ACT138  
Y3 AC/ACT238  
Y4 AC/ACT138  
Y4 AC/ACT238  
Y5 AC/ACT138  
Y5 AC/ACT238  
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.  
AC/ACT138 Y7  
AC/ACT238 Y7  
Y6 AC/ACT138  
Y6 AC/ACT238  
GND  
Semi-  
con-  
ductor,  
Advan  
ced  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
FAST™ is a Trademark of Fairchild Semiconductor.  
1
Copyright © 2000, Texas Instruments Incorporated.  
1234567

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