34VL02T/OT

Overview

The Microchip Technology 34VL02T/OT is a 2 Kbit (256 x 8) Electrically Erasable PROM featuring a 2-wire serial I²C-compatible 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 read current of 1 mA. It supports page writes of up to 16 bytes with a typical cycle time of 3 ms. The component is housed in an 8-lead MSOP 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 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.
• Includes self-timed erase/write cycles with acknowledge polling capability to maximize bus throughput.

Applications

• Low-voltage embedded systems requiring non-volatile data storage
• I²C bus networks requiring cascaded memory devices
• Applications necessitating specific memory sectors for permanent configuration

Procurement Notes

Verify that the ordering suffix /OT corresponds to the MSOP-8 package type as specified in the datasheet. Confirm the temperature grade matches the industrial range (-20°C to +85°C). Ensure compatibility with the 1.5V to 3.6V operating voltage range required by the application circuit. Check for RoHS compliance status if mandated by project specifications.

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 permanent locking of address ranges. Consider the MSOP package constraints and the 400 kHz speed limit at higher voltages. Verify that the system can handle the 3 ms typical write cycle time or utilize acknowledge polling.

Part Context

The 34VL02 belongs to Microchip's 34VLxx series of 2 Kbit serial EEPROMs. This family shares common electrical characteristics and interface protocols but differs in packaging options such as PDIP, SOIC, TSSOP, MSOP, TDFN, and SOT-23. The /OT suffix specifically denotes the MSOP surface-mount package variant within this product line.

Replacement Considerations

Direct substitutes include other 34VL02 variants with different packages, such as 34VL02/MS or 34VL02/SN, provided the pinout and electrical specifications remain identical. Cross-referencing with other Microchip 2 Kbit I²C EEPROMs may be necessary if package changes are required.