MC74F194M

Shift Registers Overview

The MC74F194M is a 4-bit bidirectional universal shift register manufactured by onsemi. It operates within a supply voltage range of 2V to 5.5V and supports asynchronous master reset, hold mode, and fully synchronous serial or parallel data transfers. The device features typical shift frequencies up to 150 MHz and is available in a 16-lead Small Outline Integrated Circuit (SOIC) package.

Shift Registers Feature Summary

• Supports bidirectional shifting with serial-serial, shift left, shift right, serial-parallel, parallel-serial, and parallel-parallel data transfer modes
• Includes an asynchronous master reset function for immediate state initialization
• Provides a hold mode that maintains the current data state without modification

Shift Registers Applications

• Serial-serial data register transfers
• Shift left and shift right operations
• Parallel-parallel data register transfers

Shift Registers Procurement Notes

Verify the specific manufacturer datasheet for the MC74F194M to confirm pinout compatibility and electrical characteristics against legacy Fairchild Semiconductor specifications. Ensure the selected component meets the required operating temperature range and voltage levels for the target application design.

Shift Registers Selection Notes

Select this component when a high-speed, multifunctional sequential building block is required for various data register transfer applications. Consider the 150 MHz typical shift frequency and the versatility of bidirectional shifting capabilities when designing systems that require flexible data movement between serial and parallel domains.

Shift Registers Part Context

This part belongs to the 74F logic family, known for high-speed performance. It is a successor to earlier 74xx series shift registers, offering improved switching speeds while maintaining functional compatibility with standard TTL logic interfaces. The 'M' suffix typically denotes the SOIC package variant.

Shift Registers Replacement Considerations

Direct substitutes include other 4-bit bidirectional universal shift registers from the 74F series, such as the 74F194SC or 74F194PC, provided they meet the same package and electrical requirements.