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参数资料
| 型号： | 74LS47 |
| 厂商： | Fairchild Semiconductor Corporation |
| 英文描述： | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs |
| 中文描述： | BCD码到7段解码器/驱动器，集电极开路输出 |
| 文件页数： | 1/6页 |
| 文件大小： | 67K |
| 代理商： | 74LS47 |
2000 Fairchild Semiconductor Corporation
DS009817
www.fairchildsemi.com
October 1988
Revised March 2000
DM74LS47
BCD
to
7-
Segment
Decoder
/Dri
ver
wit
h
Open-
Coll
ect
or
O
u
tput
s
DM74LS47
BCD to 7-Segment Decoder/Driver with
Open-Collector Outputs
General Description
The DM74LS47 accepts four lines of BCD (8421) input
data, generates their complements internally and decodes
the data with seven AND/OR gates having open-collector
outputs to drive indicator segments directly. Each segment
output is guaranteed to sink 24 mA in the ON (LOW) state
and withstand 15V in the OFF (HIGH) state with a maxi-
mum leakage current of 250
A. Auxiliary inputs provided
blanking, lamp test and cascadable zero-suppression func-
tions.
Features
s Open-collector outputs
s Drive indicator segments directly
s Cascadable zero-suppression capability
s Lamp test input
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
VCC = Pin 16
GND
= Pin 8
Connection Diagram
Pin Descriptions
Note 1: OC—Open Collector
Order Number
Package Number
Package Description
DM74LS47M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS47N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Pin Names
Description
A0–A3
BCD Inputs
RBI
Ripple Blanking Input (Active LOW)
LT
Lamp Test Input (Active LOW)
BI/RBO
Blanking Input (Active LOW) or
Ripple Blanking Output (Active LOW)
a –g
Segment Outputs (Active LOW) (Note 1)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 74LS47 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74LS47DE4 | 制造商:TI 制造商全称:Texas Instruments 功能描述:BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS |
| 74LS47PC | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| 74LS48 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:BCD to 7-Segment Decoder |
| 74LS48PC | 制造商:Texas Instruments 功能描述: |
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