Refer to the PDF data sheet for device specific package drawings
The ’AC161 devices are 4-bit binary counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting.
PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) | BODY SIZE(3) |
---|---|---|---|
CDx4AC161 | E (PDIP, 16) | 19.3mm x 9.4mm | 19.3mm x 6.35mm |
M (SOIC, 16) | 9.9mm x 6mm | 9.9mm x 3.9mm |
NAME | PIN | TYPE | DESCRIPTION |
---|---|---|---|
CLR | 1 | I | Clear, active low |
CLK | 2 | I | Clock, rising edge triggered |
A | 3 | I | Load data A |
B | 4 | I | Load data B |
C | 5 | I | Load data C |
D | 6 | I | Load data D |
ENP | 7 | I | Count enable, does not affect RCO |
GND | 8 | — | Ground |
LOAD | 9 | I | Parallel load, active low |
ENT | 10 | I | Count enable, affects RCO |
QD | 11 | O | QD output |
QC | 12 | O | QC output |
QB | 13 | O | QB output |
QA | 14 | O | QA output |
RCO | 15 | O | Ripple-carry output |
VCC | 16 | __ | Supply |