SN54LS259W

更新时间： 2024-02-27 23:05:26

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		锁存器双倍数据速率
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6页	220K
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数据手册

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SN54LS259W 数据手册

SN54/74LS259

8-BIT ADDRESSABLE LATCH

The SN54/74LS259 is a high-speed 8-Bit Addressable Latch designed for

general purpose storage applications in digital systems. It is a multifunctional

device capable of storing single line data in eight addressable latches, and

also a 1-of-8 decoder and demultiplexer with active HIGH outputs. The device

also incorporates an active LOW common Clear for resetting all latches, as

well as, an active LOW Enable.

8-BIT ADDRESSABLE LATCH

LOW POWER SCHOTTKY

• Serial-to-Parallel Conversion

• Eight Bits of Storage With Output of Each Bit Available

• Random (Addressable) Data Entry

• Active High Demultiplexing or Decoding Capability

• Easily Expandable

• Common Clear

J SUFFIX

CERAMIC

CONNECTION DIAGRAM DIP (TOP VIEW)

CASE 620-09

N SUFFIX

PLASTIC

CASE 648-08

D SUFFIX

SOIC

CASE 751B-03

PIN NAMES

LOADING (Note a)

HIGH

LOW

A , A , A

Address lnputs

Data Input

Enable (Active LOW) Input

Clear (Active LOW) input

Parallel Latch Outputs (Note b)

0.5 U.L.

1.0 U.L.

0.5 U.L.

10 U.L.

0.25 U.L.

0.5 U.L.

0.25 U.L.

5 (2.5) U.L.

ORDERING INFORMATION

SN54LSXXXJ

Ceramic

SN74LSXXXN Plastic

SN74LSXXXD SOIC

to Q

NOTES:

a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.

b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial

(74) Temperature Ranges.

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

Supply Voltage

4.5

4.75

5.0

5.5

5.25

Operating Ambient Temperature Range

–55

125

°C

Output Current — High

Output Current — Low

54, 74

–0.4

4.0

8.0

FAST AND LS TTL DATA

5-433

12 3 4 5 6

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