Introduced the functional characteristics of the MC74F195 4-Bit Parallel Access Shift Register. The device is useful in a wide variety of shifting, counting, and storage applications. It performs serial, parallel, serial-to-parallel, or parallel-to-serial data transfers at very high speeds.
The MC74F195 is a 4‑bit parallel access shift register that can operate in shift‑right or parallel‑load modes, making it suitable for shifting, counting, and storage applications. Data can be transferred serially, in parallel, or between serial and parallel formats at high speeds.
The document includes pin‑out diagrams, ordering information for different package types, and detailed electrical characteristics such as supply voltage range, operating temperature, output current limits, propagation delays, and setup/hold times.
| Supply Voltage (VCC) Minimum | 4.5 V |
|---|---|
| Supply Voltage (VCC) Typical | 5.0 V |
| Supply Voltage (VCC) Maximum | 5.5 V |
| Operating Ambient Temperature Range | 0 °C to 70 °C (typical 25 °C) |
| Output Current (HIGH) | -1.0 mA |
| Output Current (LOW) | 20 mA |
| Propagation Delay (tPLH) Typical | 7.0 ns |
| Setup Time PE to CP (HIGH) | 8.0 ns |
The device operates from 4.5 V to 5.5 V, with a typical value of 5.0 V.
It is a 4‑bit parallel access shift register.
A low on the asynchronous Master Reset input forces all Q outputs low.