tc74hct688af TOSHIBA Semiconductor CORPORATION, tc74hct688af Datasheet

tc74hct688af

Manufacturer Part Number

tc74hct688af

Description

8-bit Equality Comparator

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74HCT688AF.pdf (7 pages)

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8-Bit Equality Comparator

COMPARATOR fabricated with silicon gate C

LSTTL while maintaining the CMOS low power dissipation.

TTL or NMOS to High Speed CMOS. The inputs are compatible

with TTL, NMOS and CMOS output voltage leveles.

applied inputs P

or not they are equal.

several packege to compare of words greater than 8 bits.

discharge or transient excess voltage.

Features

•

Pin Assignment

The TC74HCT688A is a high speed CMOS 8-BIT EQUALITY

It achieves the high speed operation similar to equivalent

This device may be used as a level converter for interfacing

The TC74HCT688A compares two 8-bit binary or BCD words

A signal active low enable is provided to facilitate cascading of

All inputs are equipped with protection circuits against atatic

High speed: t

Low power dissipation: I

Compatible with TTL outputs: V

Output drive capability: 10 LSTTL loads

Symmetrical output impedance: |I

Balanced propagation delays: t

Pin and function compatible with 74LS688

TC74HCT688AP,TC74HCT688AF

= 17 ns (typ.) at V

, and inputs Q

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

= 4 μA (max) at Ta = 25°C

pLH

∼ − t

= 0.8 V (max)

= 2.0 V (min)

, and indicates whether

= 5 V

| = I

pHL

MOS technology.

= 4 mA (min)

Weight

DIP20-P-300-2.54A

SOP20-P-300-1.27A

TC74HCT688AP

TC74HCT688AF

TC74HCT688AP/AF

: 1.30 g (typ.)

: 0.22 g (typ.)

2007-10-01

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tc74hct688af Summary of contents

Page 1

... Pin and function compatible with 74LS688 Pin Assignment MOS technology and indicates whether 2.0 V (min 0.8 V (max (min ∼ − t pLH pHL 1 TC74HCT688AP/AF TC74HCT688AP TC74HCT688AF Weight DIP20-P-300-2.54A : 1.30 g (typ.) SOP20-P-300-1.27A : 0.22 g (typ.) 2007-10-01 ...

Page 2

IEC Logic Symbol Truth Table Inputs Output ≠ Don’t care System Diagram TC74HCT688AP/AF 2 2007-10-01 ...

Page 3

Absolute Maximum Ratings (Note 1) Characteristics Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC V /ground current CC Power dissipation Storage temperature Note 1: Exceeding any of the absolute ...

Page 4

AC Characteristics = 15 pF Characteristics Output transition time Propagation delay time P = (Pn, Qn Propagation delay time Characteristics = 50 pF, input ...

Page 5

Package Dimensions Weight: 1.30 g (typ.) TC74HCT688AP/AF 5 2007-10-01 ...

Page 6

Package Dimensions Weight: 0.22 g (typ.) TC74HCT688AP/AF 6 2007-10-01 ...

Page 7

RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to ...

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