34VL02T/SN

Overview

The Microchip Technology 34VL02T/SN is a 2 Kbit (256 x 8) Electrically Erasable PROM featuring a 2-wire I²C compatible serial interface. It operates on a single supply voltage ranging from 1.5V to 3.6V, with a maximum clock frequency of 400 kHz for VCC ≥ 1.8V and 100 kHz for VCC < 1.8V. The device includes permanent and resettable software write-protect features for the lower half of the array (addresses 00h-7Fh), alongside hardware write protection via the WP pin. It supports page writes up to 16 bytes, offers ESD protection exceeding 4,000V, and ensures data retention for over 200 years with more than one million erase/write cycles.

Feature Summary

• Features permanent and resettable software write-protect capabilities specifically for the lower half of the memory array.
• Supports bidirectional 2-wire serial communication compatible with standard I²C bus protocols.
• Includes Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Provides hardware write protection for the entire array through an external WP pin.

Applications

• Low-voltage embedded systems requiring non-volatile data storage
• Industrial control applications needing robust noise immunity
• Battery-powered devices utilizing low standby current modes

Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the SOIC package type as specified in the datasheet. Confirm the temperature grade matches the required operational range of -20°C to +85°C. Ensure the specific revision of the DS22079A document aligns with the manufacturing date code on the component to guarantee accurate electrical specifications and pinout compatibility.

Selection Notes

Select this component when a 2 Kbit EEPROM with I²C interface is required for low-voltage environments down to 1.5V. It is suitable for designs needing flexible write-protection schemes, including partial array locking. Consider the SOIC package dimensions and ensure the system bus speed requirements do not exceed 400 kHz at the operating voltage.

Part Context

The 34VL02 belongs to the 34VLxx series of low-voltage serial EEPROMs manufactured by Microchip Technology. This series is designed for applications demanding high endurance and long data retention. The device is available in multiple packages, including PDIP, SOIC, TSSOP, MSOP, TDFN, and SOT-23, providing flexibility for various PCB layout constraints.

Replacement Considerations

Consult the manufacturer's documentation for direct cross-references. Verify compatibility regarding voltage ranges, interface speeds, and package footprints before substituting with other 2Kb I²C EEPROMs.