34VL02/P

Overview

The Microchip Technology 34VL02/P 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 utilizes low-power CMOS technology, drawing typical standby current of 100 nA and active read current of 1 mA. It supports page writes up to 16 bytes with a typical cycle time of 3 ms. The component is housed in an 8-lead PDIP package and functions within an ambient temperature range of -20°C to +85°C.

Feature Summary

• Provides permanent and resettable software write protection for the lower half of the memory array alongside hardware write protection for the entire array via the WP pin.
• Features Schmitt trigger inputs and output slope control to suppress noise spikes and eliminate ground bounce during operation.
• Supports cascading up to eight devices on the same bus using chip select bits A0, A1, and A2.

Applications

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

Procurement Notes

Verify that the ordering suffix matches the required package type, as the base part number covers multiple form factors. Confirm the specific temperature grade and voltage compatibility with the target system design. Ensure the procurement source provides official datasheets to validate electrical characteristics and pinout configurations before integration.

Selection Notes

Select this component when a 2 Kbit EEPROM with I²C interface is required for low-voltage environments down to 1.5V. Consider the 34VL02/P specifically for through-hole mounting requirements due to its PDIP packaging. Evaluate the write-protection features if application security for the lower memory half is necessary without external logic.

Part Context

The 34VL02 belongs to the 34VLxx series of 2-Kbit serial EEPROMs manufactured by Microchip Technology. This family is designed for cost-sensitive, space-constrained applications requiring reliable non-volatile storage. The /P suffix specifically denotes the 8-lead Plastic Dual In-line Package (PDIP), distinguishing it from surface-mount variants like SOIC or TSSOP.

Replacement Considerations

Direct replacements must match the 2 Kbit capacity, I²C interface, and 1.5V-3.6V operating voltage. Verify pin compatibility for PDIP-8 packages. Cross-reference with other 34VL02 variants if surface mount is acceptable, ensuring the replacement supports the required write-protection commands and timing specifications.