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參數(shù)資料
| 型號： | SN74AHCT138DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS |
| 中文描述： | 3線至8線解碼器/解復(fù)用器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 125K |
| 代理商： | SN74AHCT138DB |
SN54AHCT138, SN74AHCT138
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS266J – DECEMBER 1995 – REVISED JANUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
EPIC
(Enhanced-Performance Implanted
CMOS) Process
Inputs Are TTL-Voltage Compatible
Designed Specifically for High-Speed
Memory Decoders and Data-Transmission
Systems
Incorporate Three Enable Inputs to Simplify
Cascading and/or Data Reception
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds 2000 V Per
MIL-STD-833, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
The ’AHCT138 3-line to 8-line decoders/
demultiplexers are designed to be used in
high-performance
memory-decoding
data-routing applications that require very short
propagation-delay times. In high-performance
memory systems, this decoder can be used to
minimize the effects of system decoding. When
employed with high-speed memories utilizing a
fast enable circuit, the delay times of this decoder
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 decoder is negligible.
and
The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two
active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.
A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one
inverter. An enable input can be used as a data input for demultiplexing applications.
The SN54AHCT138 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C.
The SN74AHCT138 is characterized for operation from –40
°
C to 85
°
C.
Copyright
2000, 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.
EPIC is a trademark of Texas Instruments Incorporated.
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
NC
Y3
Y4
C
G2A
NC
G2B
G1
B
A
N
Y
Y
V
Y
Y
G
N
SN54AHCT138 . . . FK PACKAGE
(TOP VIEW)
NC – No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A
B
C
G2A
G2B
G1
Y7
GND
V
CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
SN54AHCT138 . . . J OR W PACKAGE
SN74AHCT138 . . . D, DB, DGV, N, OR PW PACKAGE
(TOP VIEW)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54AHCT16540WD | 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN74AHCT16540DGG | 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN74AHCT16540DGV | 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| SN54AHCT273 | OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
| SN74AHCT273DB | OCTAL D-TYPE FLIP-FLOPS WITH CLEAR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74AHCT138DBR | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Line Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74AHCT138DBRE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Line to 8-Line Decoder/Demltplxr RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74AHCT138DBRG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3 Line to 8 Line Decodr Demultiplexr RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74AHCT138DE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Line to 8-Line Decoder/Demltplxr RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74AHCT138DG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3 Line to 8 Line Decodr Demultiplexr RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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