|
|
零件编号 | DM74LS47 | ||
描述 | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs | ||
制造商 | Fairchild Semiconductor | ||
LOGO | |||
1 Page
October 1988
Revised March 2000
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 µA. 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:
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
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
VCC = Pin 16
GND = Pin 8
Pin Descriptions
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)
Note 1: OC—Open Collector
© 2000 Fairchild Semiconductor Corporation DS009817
www.fairchildsemi.com
|
|||
页数 | 6 页 | ||
下载 | [ DM74LS47.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
DM74LS40 | Dual 4-Input NAND Buffer | National Semiconductor |
DM74LS42 | Decimal Decoders | National Semiconductor |
DM74LS42 | 54LS42 DM54LS42 DM74LS42 BCD to Decimal Decoders (Rev. A) | Texas Instruments |
DM74LS447 | DM54LS447 DM74LS447 BCD to 7-Seg Decoder/Drvr wOpen-Col Out (Rev. A) | Texas Instruments |
零件编号 | 描述 | 制造商 |
STK15C88 | 256-Kbit (32 K x 8) PowerStore nvSRAM | Cypress Semiconductor |
NJM4556 | DUAL HIGH CURRENT OPERATIONAL AMPLIFIER | New Japan Radio |
EL1118-G | 5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLER | Everlight |
DataSheet8.cn | 2020 | 联系我们 | 搜索 | Simemap |