Datasheet > 74LS247

74LS247

更新时间： 2024-11-17 22:53:15

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
8页	129K
描述
LOW POWER SCHOTTKY

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中文翻译

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数据手册

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74LS247 数据手册

The SN74LS247 is a BCD-to-Seven-Segment Decoder/Drivers.

The LS247 composes the and with the tails. The LS247 has

active-low outputs for direct drive of indicators.

http://onsemi.com

The LS247 features a lamp test input and have full ripple-blanking

input/output controls. An automatic leading and/or trailing-edge

zero-blanking control (RBI and RBO) is incorporated and an

overriding blanking input (BI) is contained which may be used to

control the lamp intensity by pulsing or to inhibit the output’s lamp test

may be performed at any time when the BI/RBO node is at high level.

Segment identification and resultant displays are shown below.

Display pattern for BCD input counts above 9 are unique symbols to

authenticate input conditions.

LOW

POWER

SCHOTTKY

• Open-Collector Outputs Drive Indicators Directly

• Lamp-Test Provision

• Leading/Trailing Zero Suppression

GUARANTEED OPERATING RANGES

PLASTIC

N SUFFIX

CASE 648

Symbol

Parameter

Supply Voltage

Min

4.75

Typ

5.0

Max

5.25

Unit

Operating Ambient

Temperature Range

°C

Output Current – High

BI/RBO

–50

3.2

Output Current – Low

BI/RBO

SOIC

D SUFFIX

CASE 751B

O(off)

Off–State Output Voltage

a – g

On–State Output Current

a – g

O(on)

ORDERING INFORMATION

Device

Package

16 Pin DIP

16 Pin

Shipping

SN74LS247N

SN74LS247D

2000 Units/Box

2500/Tape & Reel

Semiconductor Components Industries, LLC, 1999

Publication Order Number:

December, 1999 – Rev. 6

SN74LS247/D

12 3 4 5 6 7 8

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