onsemi Integrated Circuits (ICs) - Logic - Counters, Dividers 74F169SC

The 74F169SC is a 4-stage synchronous bidirectional counter designed for modulo-16 binary counting. It features a preset capability for programmable operation, allowing for flexible counting configurations. The device utilizes edge-triggered J-K type flip-flops, enabling asynchronous counting and loading without constraints on input signal changes during clock states. Key functionalities include a carry lookahead for easy cascading, a U/D input to control counting direction, and a terminal count (TC) output that indicates when the counter reaches its limits. The counter operates on a LOW-to-HIGH clock transition, with specific conditions for counting and loading based on the states of the Count Enable Parallel (CEP), Count Enable Trickle (CET), and Parallel Enable (PE) inputs. The 74F169SC is available in a 16-lead Small Outline Integrated Circuit (SOIC) package, making it suitable for compact designs. This product is ideal for applications requiring precise counting and programmable operations in digital circuits.