74HC40105N,652

Overview

The 74HC40105N,652 is a first-in/first-out (FIFO) elastic storage register manufactured by Nexperia. It stores 16 words of 4-bit data and handles input and output data at different shifting rates, making it suitable for buffering between asynchronous systems. The device features independent asynchronous inputs and outputs, expandability in either direction, reset capability, status indicators on inputs and outputs, and 3-state outputs. It complies with JEDEC standard JESD7A and offers ESD protection exceeding 2000 V (HBM) and 200 V (MM). Operating temperatures range from -40 °C to +125 °C.

Feature Summary

• First-in/first-out (FIFO) elastic storage register capable of storing 16 words of 4-bit data
• Handles input and output data at different shifting rates for asynchronous system buffering
• Features independent asynchronous inputs and outputs with expandability in either direction
• Includes reset capability, status indicators on inputs and outputs, and 3-state outputs

Applications

• Buffering between asynchronous systems
• Data transfer applications requiring different shifting rates
• Systems needing FIFO memory with status indicators

Procurement Notes

Verify the manufacturer as Nexperia B.V. when sourcing this component. Confirm the package type matches your design requirements, as multiple options are available. Check the temperature range specifications to ensure compatibility with your operating environment. Ensure that the ESD protection levels meet your system's requirements. Review the datasheet for any specific handling or storage instructions.

Selection Notes

Consider the voltage supply range and operating temperature when selecting this component. Evaluate the need for 3-state outputs and status indicators for your application. Assess the expandability requirements if cascading multiple devices is necessary. Verify the ESD protection levels against your system's environmental conditions. Ensure the package type fits your PCB layout constraints.

Part Context

The 74HC40105 is part of the 74HC/HCT series of high-speed Si-gate CMOS devices. It is pin-compatible with the '40105' of the '4000B' series. This series is known for its compliance with JEDEC standards and robust ESD protection. The 74HC40105 specifically addresses the need for FIFO memory in digital systems, providing a reliable solution for data buffering and transfer.

Replacement Considerations

Direct replacements include other 74HC40105 variants from different manufacturers, provided they meet the same electrical and mechanical specifications. Ensure compatibility with the 74HC logic family and verify pinout and functionality before substitution.

FAQ

What is the maximum number of words the 74HC40105 can store?

The 74HC40105 can store 16 words of 4-bit data.

Does the 74HC40105 support asynchronous data transfer?

Yes, the 74HC40105 supports independent asynchronous inputs and outputs, allowing it to handle input and output data at different shifting rates.

What is the ESD protection level of the 74HC40105?

The 74HC40105 offers ESD protection exceeding 2000 V according to HBM JESD22-A114F and exceeds 200 V according to MM JESD22-A115-A.