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參數資料
| 型號： | ACT139M |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS |
| 中文描述： | 雙程線，4線解碼器/解復用器 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 327K |
| 代理商： | ACT139M |
CD54ACT139, CD74ACT139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCHS337 – MARCH 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
AC Types Feature 1.5-V to 5.5-V Operation
and Balanced Noise Immunity at 30% of the
Supply Voltage
Buffered Inputs
Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
Speed of Bipolar F, AS, and S, With
Significantly Reduced Power Consumption
Balanced Propagation Delays
±
24-mA Output Drive Current
– Fanout to 15 F Devices
SCR-Latchup-Resistant CMOS Process and
Circuit Design
Exceeds 2-kV ESD Protection Per
MIL-STD-883, Method 3015
description/ordering information
The ’ACT139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 4.5-V to 5.5-V V
CC
operation. These devices are designed to be used in high-performance memory-decoding or data-routing
applications requiring very short propagation delay times. In high-performance memory systems, these
decoders can be used to minimize the effects of system decoding. When used with high-speed memories
utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are
less than the typical access time of the memory. This means that the effective system delay introduced by the
decoders is negligible.
The active-low enable (G) input can be used as a data line in demultiplexing applications. These
decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its
driving circuit.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – E
Tube
CD74ACT139E
CD74ACT139E
°
°
–55
C to 125
C
SOIC – M
Tube
CD74ACT139M
ACT139M
Tape and reel
Tube
CD74ACT139M96
CD54ACT139F3A
CDIP – F
CD54ACT139F3A
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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16
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9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
CD54ACT139 . . . F PACKAGE
CD74ACT139 . . . E OR M PACKAGE
(TOP VIEW)
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