34VL02T/MS

Overview

The Microchip Technology 34VL02T/MS is a 2 Kbit (256 x 8-bit) 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 typical standby current of 100 nA and read current of 1 mA. The device supports clock frequencies up to 400 kHz for VCC ≥ 1.8V and includes a 16-byte page write buffer. It offers permanent and resettable software write-protect for the lower half of the array, hardware write protection via the WP pin, and data retention exceeding 200 years.

Feature Summary

• Provides permanent and resettable software write-protect capabilities for the lower half of the memory array.
• Features an external Write-Protect (WP) pin to enable hardware-level protection for the entire memory space.
• Supports cascading up to eight devices on the same bus using chip select address pins.

Applications

• Low-voltage embedded systems requiring non-volatile data storage
• I²C bus expansion for configuration parameter retention
• Battery-powered devices utilizing low standby current modes

Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging and '/MS' indicates the MSOP-8 package type as specified in the manufacturer's datasheet. Confirm the temperature grade matches the required operational range. Ensure compatibility with the system's I²C voltage levels and pull-up resistor requirements before finalizing procurement.

Selection Notes

Select this component when a small capacity EEPROM with I²C interface is needed for applications operating between 1.5V and 3.6V. Consider the 16-byte page write buffer for efficient data writing. Evaluate the write-protect features if data integrity for specific memory regions is critical. Ensure the MSOP-8 package fits the available PCB footprint constraints.

Part Context

The 34VL02 belongs to Microchip's 34LC series of serial EEPROMs designed for low-power applications. It utilizes CMOS technology to achieve low active and standby currents. The device is part of a family offering various package options including PDIP, SOIC, TSSOP, MSOP, TDFN, and SOT-23 to accommodate different board space and mounting requirements.

Replacement Considerations

Check for other variants within the 34VL02 family such as 34VL02/MS or 34LC02/MS to verify pinout and electrical specification compatibility. Ensure any substitute maintains the same I²C protocol support and voltage operating range.