IDT54FCT138TLSOB 查看數據表（PDF） - Integrated Device Technology

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IDT54FCT138TLSOB

FAST CMOS 1-OF-8 DECODER WITH ENABLE

Integrated Device Technology 

IDT54/74FCT138T/AT/CT

FAST CMOS 1-OF-8 DECODER WITH ENABLE

FAST CMOS

1-OF-8 DECODER

WITH ENABLE

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

IDT54/74FCT138T/AT/CT

FEATURES:

• Std., A, and C grades

• Low input and output leakage ≤1µA (max.)

• CMOS power levels

• True TTL input and output compatibility:

– VOH = 3.3V (typ.)

– VOL = 0.3V (typ.)

• High Drive outputs (-15mA IOH, 48mA IOL)

• Meets or exceeds JEDEC standard 18 specifications

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

listed (dual marked)

• Power off disable outputs permit "live insertion"

• Available in the following packages:

– Industrial: SOIC, QSOP

– Military: CERDIP, LCC

DESCRIPTION:

The IDT54/74FCT138T is a 1-of-8 decoder built using an advanced

dual metal CMOS technology. The IDT54/74FCT138T accepts three

binary weighted inputs (A0, A1, A2) and, when enabled, provides eight

mutually exclusive active low outputs (O0 - O7). The IDT54/74FCT138T

features 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 IDT54/74FCT138T

devices and one inverter.

FUNCTIONAL BLOCK DIAGRAM

A2

A1

A0

E1 E2 E3

O7

O6

O5

O4

O3

O2

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

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

1

© 2002 Integrated Device Technology, Inc.

O1

O0

JUNE 2002

DSC-2570/9

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