tc74hc237af TOSHIBA Semiconductor CORPORATION, tc74hc237af Datasheet

tc74hc237af

Manufacturer Part Number

tc74hc237af

Description

3-to-8 Line Decoder/latch

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74HC237AF.pdf (9 pages)

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3-to-8 Line Decoder/Latch

DECODER ADDRESS LATCH fabricated with silicon gate

C2MOS technology.

LSTTL while maintaining the CMOS low power dissipation.

enable input and 3-to-8 line decoder with enable inputs G1 and

high level of GL . The value of this data determines which one of

the outputs will go low.

decoding function is inhibited and all the 8 outputs go high. The

two enable inputs are provided to ease cascade connection and

permits the application address decoder for memory system.

discharge or transient excess voltage.

Features

•

Pin Assignment

G . The 3-bit binary data is stored into the input latch on the

The TC74HC237A is a high speed CMOS 3-to-8 LINE

It achieves the high speed operation similar to equivalent

It is composed of a 3-bit input latches with a common GL

When the enable input G1 is held low or

All inputs are equipped with protection circuits against static

High speed: t

Low power dissipation: I

High noise immunity: V

Output drive capability: 10 LSTTL loads

Symmetrical output impedance: |I

Balanced propagation delays: t

Wide operating voltage range: V

Pin and function compatible with 74LS237

TC74HC237AP,TC74HC237AF

= 12 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

NIH

= 4 μA (max) at Ta = 25°C

= V

pLH

NIL

∼ − t

(opr) = 2~6 V

= 28% V

= 5 V

| = I

pHL

is held high,

= 4 mA (min)

(min)

Weight

DIP16-P-300-2.54A

SOP16-P-300-1.27A

TC74HC237AP

TC74HC237AF

TC74HC237AP/AF

: 1.00 g (typ.)

: 0.18 g (typ.)

2007-10-01

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tc74hc237af Summary of contents

Page 1

... Wide operating voltage range: V • Pin and function compatible with 74LS237 Pin Assignment held high 28% V (min) NIL (min ∼ − t pLH pHL (opr TC74HC237AP/AF TC74HC237AP TC74HC237AF Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) 2007-10-01 ...

Page 2

IEC Logic Symbol Truth Table Inputs Enable Address ...

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

Electrical Characteristics DC Characteristics Characteristics Symbol High-level input V IH voltage Low-level input V IL voltage High-level output V OH voltage Low-level output V OL voltage Input leakage I IN current Quiescent supply I CC current Timing Requirements (input: t ...

Page 5

AC Characteristics = 15 pF Characteristics Output transition time Propagation delay time (G1-Y) Propagation delay time ( 2 G -Y) Propagation delay time ( GL -Y) Propagation delay time (A, B, C-Y) AC Characteristics = 50 pF, ...

Page 6

Typical Application TC74HC237AP/AF 6 2007-10-01 ...

Page 7

Package Dimensions Weight: 1.00 g (typ.) TC74HC237AP/AF 7 2007-10-01 ...

Page 8

Package Dimensions Weight: 0.18 g (typ.) TC74HC237AP/AF 8 2007-10-01 ...

Page 9

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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