CD74HC138

更新时间： 2024-02-02 22:17:36

品牌	Logo	应用领域
德州仪器 - TI		解码器解复用器
页数	文件大小	规格书
7页	45K
描述
High Speed CMOS Logic 3-to-8 Line Decoder/ Demultiplexer Inverting and Non-Inverting

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数据手册
替代型号

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CD74HC138 数据手册

CD74HC138, CD74HCT138,

CD74HC238, CD74HCT238

Data sheet acquired from Harris Semiconductor

SCHS147A

High Speed CMOS Logic 3-to-8 Line Decoder/

Demultiplexer Inverting and Non-Inverting

October 1997 - Revised February 1999

Features

• Select One Of Eight Data Outputs

Active Low for 138, Active High for 238

[ /Title

(CD74

HC138

CD74

HCT13

CD74

HC238

• l/O Port or Memory Selector

• Three Enable Inputs to Simplify Cascading

• Typical Propagation Delay of 13ns at V

= 5V,

C = 15pF, T = 25 C

• Fanout (Over Temperature Range)

- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55 C to 125 C

• Balanced Propagation Delay and Transition Times

CD74

HCT23

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

/Sub-

ject

- 2V to 6V Operation

- High Noise Immunity: N = 30%, N = 30% of V

IL IH CC

(High

Speed

at V

= 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

V = 0.8V (Max), V = 2V (Min)

IL IH

- CMOS Input Compatibility, I ≤ 1µA at V , V

OL OH

Pinout

CD74HC138, CD74HCT138, CD74HC238, CD74HCT238

(PDIP, SOIC)

TOP VIEW

16 V

15 Y0 (Y0)

14 Y1 (Y1)

13 Y2 (Y2)

12 Y3 (Y3)

11 Y4 (Y4)

10 Y5 (Y5)

(Y7) Y7

GND

Y6 (Y6)

Signal names in parentheses are for ’HC238 and ’HCT238.

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

12 3 4 5 6 7

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CD74HC138 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC138-Q1	TI	功能相似	HIGH-SPEED CMOS LOGIC 3- TO 8-LINE INVERTING DECODER/DEMULTIPLEXER
CD54HC138	TI	功能相似	High-Speed CMOS Logic 3- to 8-Line Decoder/ Demultiplexer Inverting and Noninverting

与CD74HC138相关器件

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CD74HC138E	TI	获取价格	High Speed CMOS Logic 3-to-8 Line Decoder/ Demultiplexer Inverting and Non-Inverting
CD74HC138EE4	TI	获取价格	High-Speed CMOS Logic 3- to 8-Line Decoder/ Demultiplexer Inverting and Noninverting
CD74HC138EN	ETC	获取价格	Logic IC
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CD74HC138F	ETC	获取价格	Logic IC
CD74HC138H	ETC	获取价格	3-To-8-Line Demultiplexer
CD74HC138M	TI	获取价格	High Speed CMOS Logic 3-to-8 Line Decoder/ Demultiplexer Inverting and Non-Inverting
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CD74HC138M96G4	TI	获取价格	High-Speed CMOS Logic 3- to 8-Line Decoder/ Demultiplexer Inverting and Noninverting