24C65-I/P

Memory IC Overview

The Microchip Technology 24C65-I/P is a 64-kbit (8k x 8) Electrically Erasable Programmable Read-Only Memory (EEPROM) featuring an I2C serial interface. It operates within a supply voltage range of 2.5 V to 6 V and supports clock frequencies up to 400 kHz. The device is housed in an 8-pin PDIP package with through-hole mounting. Key electrical specifications include a maximum access time of 900 ns, a byte write cycle time of 5 ms, and a maximum active read current of 3 mA. It ensures data retention for 200 years and functions across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports standard I2C two-wire serial communication with high-speed mode compatibility.
• Includes power-on/off data protection circuitry to prevent corruption during voltage transitions.
• Features self-timed write cycles and page write modes for efficient data management.

Memory IC Applications

• Industrial control systems requiring non-volatile parameter storage
• Consumer electronics for configuration data retention
• Automotive modules needing reliable low-voltage memory

Memory IC Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature grade (-40°C to +85°C) and 'P' denotes the PDIP-8 package. Confirm that the operating voltage requirements align with your system's 2.5 V to 6 V range. Ensure the I2C bus speed does not exceed 400 kHz. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the through-hole mounting style matches your PCB design constraints.

Memory IC Selection Notes

Select this component when a 64-kbit capacity is sufficient for application needs. Choose this part over higher-density variants if cost or pin count is a constraint. Consider the PDIP-8 package only if through-hole assembly is mandated. Verify that the 400 kHz I2C speed meets the system's timing requirements. Ensure the 2.5 V minimum voltage is compatible with the lowest system supply level.

Memory IC Part Context

This EEPROM belongs to Microchip's 24Cxx series of Smart Serial EEPROMs. These devices are designed for applications requiring frequent data updates with low power consumption. The 24C65 variant specifically offers 64 kbit of storage, balancing density with ease of integration via the standard I2C interface. It is commonly used in embedded systems where data persistence is critical after power loss.

Memory IC Replacement Considerations

Direct replacements must match the 64-kbit capacity, I2C interface, and PDIP-8 package. Verify that any substitute supports the same 2.5 V to 6 V voltage range and 400 kHz clock frequency. Ensure the replacement also offers industrial temperature rating and similar write cycle times. Cross-reference pinouts to guarantee compatibility without board redesign.