Datasheet > 74HC237PW

74HC237PW

更新时间： 2024-11-29 11:13:11

品牌	Logo	应用领域
安世 - NEXPERIA		/
页数	文件大小	规格书
16页	271K
描述
3-to-8 line decoder, demultiplexer with address latchesProduction

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74HC237PW 数据手册

74HC237

3-to-8 line decoder, demultiplexer with address latches

Rev. 8 — 26 October 2021

Product data sheet

1. General description

The 74HC237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An).

The 74HC237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When

the latch is enabled (LE = LOW), the 74HC237 acts as a 3-to-8 active LOW decoder. When the

latch enable (LE) goes from LOW-to-HIGH, the last data present at the inputs before this transition,

is stored in the latches. Further address changes are ignored as long as LE remains HIGH. The

output enable input (E1 and E2) controls the state of the outputs independent of the address inputs

or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH. The 74HC237 is ideally

suited for implementing non-overlapping decoders in 3-state systems and strobes (stored address)

applications in bus-oriented systems.

2. Features and benefits

•

Combines 3-to-8 decoder with 3-bit latch

•

Multiple input enable for easy expansion or independent controls

Active HIGH mutually exclusive outputs

Wide supply voltage range from 2.0 V to 6.0 V

CMOS low power dissipation

High noise immunity

Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

Complies with JEDEC standards:

•

JESD8C (2.7 V to 3.6 V)

JESD7A (2.0 V to 6.0 V)

•

ESD protection:

•

HBM JESD22-A114F exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

•

Multiple package options

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

3. Ordering information

Table 1. Ordering information

Type number Package

Temperature range Name

Description

Version

74HC237D

-40 °C to +125 °C

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

74HC237DB -40 °C to +125 °C

74HC237PW -40 °C to +125 °C

SSOP16

TSSOP16

plastic shrink small outline package; 16 leads;

body width 5.3 mm

SOT338-1

SOT403-1

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

12 3 4 5 6 7...16

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