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CD40147BMS Datasheet(PDF) 1 Page - Intersil Corporation

Part No. CD40147BMS
Description  10 Line to 4 Line BCD Priority Encoder
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CD40147BMS Datasheet(HTML) 1 Page - Intersil Corporation

  CD40147BMS Datasheet HTML 1Page - Intersil Corporation CD40147BMS Datasheet HTML 2Page - Intersil Corporation CD40147BMS Datasheet HTML 3Page - Intersil Corporation CD40147BMS Datasheet HTML 4Page - Intersil Corporation CD40147BMS Datasheet HTML 5Page - Intersil Corporation CD40147BMS Datasheet HTML 6Page - Intersil Corporation CD40147BMS Datasheet HTML 7Page - Intersil Corporation CD40147BMS Datasheet HTML 8Page - Intersil Corporation  
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7-71
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
CD40147BMS
10 Line to 4 Line BCD Priority Encoder
Pinout
CD40147BMS
TOP VIEW
Functional Diagram
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
4
5
6
7
8
C
VSS
B
VDD
D
3
2
1
9
A
0
BCD
ENCODER
PRIORITY
SELECT
D23
C22
B21
A20
9
0
Features
• High Voltage Type (20V Rating)
• Encodes 10 Line to 4 Line BCD
• Active Low Inputs and Outputs
• 100% Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings
• Maximum Input Current of 1
µA at 18V Over Full Pack-
age Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Over Full Package/Temperature Range)
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
• Standardized Symmetrical Output Characteristics
• Meets All Requirements of JEDEC Tentative Standard
No. 13B, “Standard Specifications for Description of
‘B’ Series CMOS Devices”
Applications
• Keyboard Encoding
• 10 Line to BCD Encoding
• Range Selection
Description
CD40147BMS CMOS encoder features priority encoding of
the inputs to ensure that only the highest order data line is
encoded. Ten data input lines (0-9) are encoded to four line (8,
4, 2, 1) BCD. The highest priority line is line 9. All four output
lines are logic 1 (VSS) when all input lines are logic 0. All
inputs and outputs are buffered, and each output can drive
one TTL low power Schottky load. The CD40147BMS is func-
tionally similar to the TTL 54/74147 if pin 15 is tied low.
The CD40147BMS is supplied in these 16-lead outline
packages:
Braze Seal DIP
H4T
Frit Seal DIP
H1E
Ceramic Flatpack
H6W
December 1992
File Number
3357


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