SN54LS160A

BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS The LS160A / 161A / 162A / 163A are high-speed 4-bit synchronous counters. They are edge-triggered, synchronously presettable, and cascadable MSI building blocks for counting, memory addressing, frequency division and other applications. The LS160A and LS162A count modulo 10 (BCD). The LS161A and LS163A count modulo 16 (binary.) The LS160A and LS161A have an asynchronous Master Reset (Clear) input that overrides, and is independent of, the clock and all other control inputs. The LS162A and LS163A have a Synchronous Reset (Clear) input that overrides all other control inputs, but is active only during the rising clock edge. BCD (Modulo 10) Asynchronous Reset Synchronous Reset LS160A LS162A Binary (Modulo 16) LS161A LS163A SN54/74LS160A SN54/74LS161A SN54/74LS162A SN54/74LS163A BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 620-09 16 1 Synchronous Counting and Loading Two Count Enable Inputs for High Speed Synchronous Expansion Terminal Count Fully Decoded Edge-Triggered Operation Typical Count Rate of 35 MHz ESD > 3500 Volts CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 TC 15 Q0 14 Q1 13 Q2 12 Q3 11 CET 10 PE 9 16 1 N SUFFIX PLASTIC CASE 648-08 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. *MR for LS160A and LS161A *SR for LS162A and LS163A 1 *R 2 CP 3 P0 4 P1 5 P2 6 P3 7 CEP 8 GND 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATI...