HD4074408F

Microcontrollers Overview

The HD4074408F is a CMOS static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 512K words by 8 bits, totaling 4 megabits. The device operates with a single 5V power supply and supports parallel interface communication. Access time specifications are available in multiple speed grades, including 60ns, 70ns, and 80ns variants. The component is designed for surface-mount installation and is housed in a 32-pin thin small-outline package (TSOP).

Microcontrollers Feature Summary

• Provides high-speed non-volatile data retention characteristics typical of SRAM technology.
• Supports standard parallel bus interfaces for direct microprocessor connectivity.
• Operates within a standard 5V logic voltage range compatible with legacy systems.

Microcontrollers Applications

• Industrial control system memory buffers
• Embedded controller data storage
• Telecommunications equipment caching

Microcontrollers Procurement Notes

Verify the specific speed grade suffix required for your timing constraints, as access times vary between 60ns, 70ns, and 80ns. Confirm package authenticity and check for end-of-life status through official Renesas channels before finalizing procurement plans.

Microcontrollers Selection Notes

Select this component when a 4Mbit parallel SRAM solution is required for 5V logic environments. Ensure the chosen speed grade meets the system clock requirements. Consider pin compatibility if replacing older HD64 series devices in existing designs.

Microcontrollers Part Context

This part belongs to the HD40000 series of CMOS SRAMs from Renesas. It serves as a general-purpose memory solution for embedded applications requiring fast read/write cycles without the complexity of flash management. The series is known for reliability in industrial and commercial temperature ranges.

Microcontrollers Replacement Considerations

Check for direct pin-compatible upgrades within the HD40000 family or newer SH7000 series alternatives. Verify that any substitute maintains the same 32-pin TSOP footprint and 5V operating voltage to ensure board-level compatibility.