IDT74FCT138C

更新时间： 2024-11-05 23:05:11

品牌	Logo	应用领域
艾迪悌 - IDT		解码器
页数	文件大小	规格书
6页	70K
描述
FAST CMOS 1-OF-8 DECODER WITH ENABLE

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数据手册

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IDT74FCT138C 数据手册

IDT54/74FCT138

IDT54/74FCT138A

IDT54/74FCT138C

FAST CMOS

1-OF-8 DECODER

WITH ENABLE

Integrated Device Technology, Inc.

FEATURES:

DESCRIPTION:

• IDT54/74FCT138 equivalent to FAST speed

• IDT54/74FCT138A 35% faster than FAST

• IDT54/74FCT138C 40% faster than FAST

• Equivalent to FAST speeds output drive over full tem-

perature and voltage supply extremes

• IOL = 48mA (commercial) and 32mA (military)

• CMOS power levels (1mW typ. static)

• TTL input and output level compatible

• CMOS output level compatible

The IDT54/74FCT138/A/C are 1-of-8 decoders built using

an advanced dual metal CMOS technology. The IDT54/

74FCT138/A/C accept three binary weighted inputs (A0, A1,

A2) and, when enabled, provide eight mutually exclusive

active LOW outputs (O0 - O7). The IDT54/74FCT138/A/C

feature three enable inputs, two active LOW (E1, E2) and one

active HIGH (E3). All outputs will be HIGH unless E1 and E2

are LOW and E3 is HIGH. This multiple enable function allows

easy parallel expansion of the device to a 1-of-32 (5 lines to

32 lines) decoder with just four IDT54/74FCT138/A/C devices

and one inverter.

• Substantially lower input current levels than FAST

(5µA max.)

• JEDEC standard pinout for DIP and LCC

• Product available in Radiation Tolerant and Radiation

Enhanced versions

• Military product compliant to MIL-STD-883, Class B

• Standard Military Drawing # 5962-87654 is listed on this

function. Refer to section 2.

FUNCTIONAL BLOCK DIAGRAM

PIN CONFIGURATIONS

E1 E2

Vcc

P16-1,

D16-1,

SO16-1

O₂

O₄

E16-1

O₆

GND

DIP/SOIC/CERPACK

TOP VIEW

INDEX

20 19

O₂

L20-2

O₄

10 11 12 13

2581 drw 02

2581 drw 01

LCC

TOP VIEW

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

FAST is a trademark of National Semiconductor Co.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

MAY 1992

1992 Integrated Device Technology, Inc.

7.3

DSC-4625/3

12 3 4 5 6

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