SN54LS298

更新时间： 2024-09-27 23:03:03

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		复用器存储输入元件
页数	文件大小	规格书
6页	190K
描述
QUAD 2-INPUT MULTIPLEXER WITH STORAGE

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数据手册

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SN54LS298 数据手册

SN54/74LS298

QUAD 2-INPUT MULTIPLEXER

WITH STORAGE

The SN54/74LS298 is a Quad 2-Port Register. It is the logical equivalent of

a quad 2-input multiplexer followed by a quad 4-bit edge-triggered register. A

Common Select input selects between two 4-bit input ports (data sources.)

The selected data is transferred to the output register synchronous with the

HIGH to LOW transition of the Clock input.

QUAD 2-INPUT MULTIPLEXER

WITH STORAGE

LOW POWER SCHOTTKY

The LS298 is fabricated with the Schottky barrier process for high speed

and is completely compatible with all Motorola TTL families.

• Select From Two Data Sources

• Fully Edge-Triggered Operation

• Typical Power Dissipation of 65 mW

• Input Clamp Diodes Limit High Speed Termination Effects

J SUFFIX

CERAMIC

CASE 620-09

CONNECTION DIAGRAM DIP (TOP VIEW)

N SUFFIX

PLASTIC

CASE 648-08

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

D SUFFIX

SOIC

CASE 751B-03

ORDERING INFORMATION

PIN NAMES

LOADING (Note a)

SN54LSXXXJ

Ceramic

SN74LSXXXN Plastic

SN74LSXXXD SOIC

HIGH

LOW

Common Select Input

0.5 U.L.

10 U.L.

0.25 U.L.

5 (2.5) U.L.

Clock (Active LOW Going Edge) Input

Data Inputs From Source 0

Data Inputs From Source 1

–I

0a 0d

I –I

1a 1d

LOGIC SYMBOL

Q –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.

FAST AND LS TTL DATA

5-473

12 3 4 5 6

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