74AC11194N

Overview

The Texas Instruments 74AC11194N is a 4-bit bidirectional universal shift register belonging to the AC logic family. It operates within a supply voltage range of 2.0 V to 6.0 V and supports data transfer rates up to 50 MHz at 5.0 V. The device features parallel load capability, serial input/output, and three-state outputs for bus-oriented designs. It is available in a 20-pin PDIP package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports bidirectional shifting with independent control of left and right shift directions
• Enables parallel data loading via dedicated inputs for rapid state initialization
• Provides three-state outputs to facilitate direct connection to system buses without external buffers

Applications

• Data storage in digital communication systems
• Serial-to-parallel and parallel-to-serial conversion interfaces
• Delay line generation in timing circuits

Procurement Notes

Verify that the suffix 'N' corresponds to the PDIP-20 through-hole package configuration. Confirm the AC logic family designation ensures compatibility with 2.0 V to 6.0 V supply rails. Check for specific temperature grade requirements if operation exceeds standard commercial ranges. Ensure pinout alignment with existing PCB footprints before integration.

Selection Notes

Select this component when bidirectional shifting and parallel load functionality are required within the AC logic performance envelope. Consider the PDIP-20 package for prototyping or applications requiring through-hole mounting. Evaluate power consumption and switching speeds against system clock requirements to ensure the 50 MHz limit is sufficient for the intended data throughput.

Part Context

This part belongs to the Texas Instruments 74AC series of high-speed CMOS logic devices. The 74AC11194 specifically addresses applications needing versatile shift register capabilities with bus-compatible outputs. It complements other AC family components by providing reliable data movement and storage functions in mixed-signal environments.

Replacement Considerations

Cross-reference with 74ACT11194 for compatible TTL-level input requirements. Verify mechanical footprint equivalence if substituting with equivalent parts from other manufacturers.