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參數資料
| 型號： | KK74HC139A |
| 廠商： | KODENSHI CORP. |
| 英文描述： | Replacement for Texas Instruments part number SN74LS21N. Buy from authorized manufacturer Rochester Electronics. |
| 中文描述： | 雙1 - 4解碼器/解復用器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 167K |
| 代理商： | KK74HC139A |
TECHNICAL DATA
K K
74HC139A
Dual 1-of-4 Decoder/Demultiplexer
ORDERING INFORMATION
KK
74HC139AN Plastic
KK
74HC139AD SOIC
T
A
= -55
°
to 125
°
C for all packages
The
KK
74HC139A is identical in pinout to the LS/ALS139. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 1-of-4 decoders, each of
which decodes a two-bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and
cascading functions. The demultiplexing function is accomplished by
using the Address inputs to select the desired device output, and utilizing
the Select as a data input.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
μ
A
High Noise Immunity Characteristic of CMOS Devices
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Select
A1
A0
Y0
Y1
Y2
Y3
H
X
X
H
H
H
H
L
L
L
L
H
H
H
L
L
H
H
L
H
H
L
H
L
H
H
L
H
L
H
H
H
H
H
L
X = don’t care
1
相關PDF資料 |
PDF描述 |
|---|---|
| KK74HC139AD | Dual 1-of-4 Decoder/Demultiplexer |
| KK74HC139AN | Dual 1-of-4 Decoder/Demultiplexer |
| KK74HC14A | Replacement for Texas Instruments part number 54AC11011/BEA. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC14AD | Replacement for Texas Instruments part number 54AC11011/BFA. Buy from authorized manufacturer Rochester Electronics. |
| KK74HC14AN | Replacement for Texas Instruments part number 54AC11032/B2A. Buy from authorized manufacturer Rochester Electronics. |
相關代理商/技術參數 |
參數描述 |
|---|---|
| KK74HC139AD | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 1-of-4 Decoder/Demultiplexer |
| KK74HC139AN | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 1-of-4 Decoder/Demultiplexer |
| KK74HC14A | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
| KK74HC14AD | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
| KK74HC14AN | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Hex Schmitt-Trigger Inverter |
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