74F161A and 74F163A are high-speed synchronous modulo-16 binary counters. They are synchronously pre- settable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multi-stage counters. The 74F161A has an asynchronous Master- Reset input that overrides all other inputs and forces the outputs LOW. The 74F163A has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock. The 74F161A and 74F163A are high- speed versions of the 74F161 and 74F163.
The Fairchild Semiconductor 74F161A and 74F163A are high-speed synchronous modulo-16 binary counters designed for use in programmable dividers and multi-stage counter applications. The 74F161A features an asynchronous Master Reset input, while the 74F163A utilizes a synchronous Reset input. Both devices offer high-speed synchronous expansion capabilities with a typical count frequency of 120 MHz.
| Maximum Count Frequency | 120 MHz |
|---|---|
| Supply Voltage | +4.5V to +5.5V |
| Storage Temperature | -65°C to +150°C |
| Operating Temperature | -55°C to +125°C |
The typical count frequency is 120 MHz.
Yes, they are designed for high-speed synchronous expansion.