CA3161 Datasheet, PDF (1/4 Pages) Intersil Corporation – BCD to Seven Segment Decoder/Driver

CA3161
August 1997
BCD to Seven Segment Decoder/Driver
Features
Description
• TTL Compatible Input Logic Levels
• 25mA (Typ) Constant Current Segment Outputs
• Eliminates Need for Output Current Limiting Resistors
• Pin Compatible with Other Industry Standard
Decoders
The CA3161E is a monolithic integrated circuit that performs
the BCD to seven segment decoding function and features
constant current segment drivers. When used with the
CA3162E A/D Converter the CA3161E provides a complete
digital readout system with a minimum number of external
parts.
• Low Standby Power Dissipation . . . . . . . . 18mW (Typ)
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
CA3161E
0 to 70 16 Ld PDIP
PKG.
NO.
E16.3
Pinout
CA3161
(PDIP)
TOP VIEW
2¹ 1
2² 2
NC 3
NC 4
NC 5
2³ 6
2⁰ 7
GND 8
16 V⁺
15 f
14 g
13 a
12 b
11 c
10 d
9e
Functional Block Diagram
2³
6
2²
2¹
2
1
INPUT
BUFFERS
2⁰
7
BCD TO
7 SEGMENT
DECODER
BIAS
CIRCUITRY
8 GND
16
V+
SEGMENT
a-g
SEGMENT DRIVER
13 _a
12 _b
11
CONSTANT
c
CURRENT
SEGMENT
DRIVERS
10
9
d
e
15 _f
14 _g
a
fb
g
ec
d
SEGMENT
IDENTIFICATION
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
9-5
File Number 1079.3