CA3161
August 1997
BCD to Seven Segment Decoder/Driver
Description
The CA3161E is a monolithic integrated circuit that ...
CA3161
August 1997
BCD to Seven Segment Decoder/Driver
Description
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.
Features
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 Low Standby Power Dissipation . . . . . . . . 18mW (Typ)
Ordering Information
PART NUMBER CA3161E TEMP. RANGE (oC) 0 to 70 PACKAGE 16 Ld PDIP PKG. NO. E16.3
Pinout
CA3161 (PDIP) TOP VIEW
Functional Block Diagram
BCD INPUTS 23 22 21 20 6 2 1 7 INPUT BUFFERS BCD TO 7 SEGMENT DECODER 13 12 CONSTANT CURRENT SEGMENT DRIVERS 11 10 9 15
BCD INPUTS
21 22 NC NC
1 2 3 4 5 6 7 8
16 V + SEGMENT DRIVER OUTPUTS 15 f 14 g 13 a 12 b 11 c 10 d 9 e BIAS CIRCUITRY
14
a b c d e f g
BCD INPUTS
NC 23 20 GND
8
GND
16 V+ SEGMENT
a-g a f g e d
SEGMENT DRIVER SEGMENT IDENTIFICATION
b c
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
File Number
1079.3
9-5
SEGMENT DRIVER OUTPUTS
CA3161
Absolute Maximum Ratings
DC VSUPPLY (Between Terminals 1 and 10) . . . . . . . . . . . . . . +7.0V Input
Voltage (...