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參數資料
| 型號： | MC74HCT138AN |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | 1-of-8 Decoder/Demultiplexer with LSTTL Compatible Inputs |
| 中文描述： | HCT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 218K |
| 代理商： | MC74HCT138AN |
SEMICONDUCTOR TECHNICAL DATA
1
REV 6
Motorola, Inc. 1995
10/95
!$# &!
%# # $#"
High–Performance Silicon–Gate CMOS
The MC74HCT138A is identical in pinout to the LS138. The HCT138A
may be used as a level converter for interfacing TTL or NMOS outputs to
High Speed CMOS inputs.
The HCT138A decodes a three–bit Address to one–of–eight active–lot
outputs. This device features three Chip Select inputs, two active–low and
one active–high to facilitate the demultiplexing, cascading, and chip–select-
ing functions. The demultiplexing function is accomplished by using the
Address inputs to select the desired device output; one of the Chip Selects is
used as a data input while the other Chip Selects are held in their active
states.
Output Drive Capability: 10 LSTTL Loads
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
μ
A
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 122 FETs or 30.5 Equivalent Gates
LOGIC DIAGRAM
7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Y7
9
10
11
12
13
14
15
3
2
1
CS1
CS2
A0
A1
A2
ACTIVE–LOW
OUTPUTS
ADDRESS
INPUTS
CS3
CHIP–
SELECT
INPUTS
5
4
6
PIN 16 = VCC
Design Criteria
Value
Units
Speed Power Product
.0075
pJ
*Equivalent to a two–input NAND gate.
PIN ASSIGNMENT
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
A0
CS2
A2
A1
Y7
CS1
CS3
GND
Y3
Y2
Y1
Y0
VCC
Y5
Y4
Y6
D SUFFIX
SOIC PACKAGE
CASE 751B–05
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
ORDERING INFORMATION
MC74HCTXXXAN
MC74HCTXXXAD
MC74HCTXXXADT
Plastic
SOIC
TSSOP
1
16
1
16
1
16
DT SUFFIX
TSSOP PACKAGE
CASE 948F–01
Inputs
Outputs
CS1CS2 CS3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X
X
L
H
H
H
H
H
H
H
H
X
H
X
L
L
L
L
L
L
L
L
H
X
X
L
L
L
L
L
L
L
L
X
X
X
L
L
L
L
H
H
H
H
X
X
X
L
L
H
H
L
L
H
H
X
X
X
L
H
L
H
L
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
L
FUNCTION TABLE
H = high level (steady state)
L = low level (steady state)
X = don’t care
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC74HCT138ANG | 功能描述:編碼器、解碼器、復用器和解復用器 5V 1-of-8 Decoder w/LSTTL Inputs RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74HCT138N | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| MC74HCT14AD | 功能描述:變換器 5V CMOS Hex RoHS:否 制造商:NXP Semiconductors 電路數量:6 邏輯系列:74ABT 邏輯類型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube |
| MC74HCT14ADG | 功能描述:變換器 5V CMOS Hex Schmitt Trigger RoHS:否 制造商:NXP Semiconductors 電路數量:6 邏輯系列:74ABT 邏輯類型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube |
| MC74HCT14ADG | 制造商:ON Semiconductor 功能描述:GATE / INVERTER LOGIC IC |
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