11LC080-I/P

Overview

The Microchip Technology 11LC080-I/P is an 8 Kbit serial electrically erasable programmable read-only memory (EEPROM) utilizing the UNI/O single I/O interface. It features a 1 k x 8 organization with a 16-byte page write buffer. The device operates within a voltage range of 2.5 V to 5.5 V and supports a maximum bus frequency of 100 kHz. Designed for industrial applications, it functions between -40°C and +85°C in an 8-lead PDIP package.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding on the SCIO pin.
• Includes built-in write protection mechanisms such as power-on/off data protection and a write enable latch.
• Features block write protection allowing configuration to protect none, one-quarter, one-half, or all of the memory array.
• Provides high reliability with over one million erase/write cycles and greater than 200 years of data retention.

Applications

• Interfacing with microcontrollers requiring low-pin-count non-volatile storage
• ASIC designs needing simple serial EEPROM integration
• Industrial control systems operating within specified temperature ranges

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the device address code aligns with system bus requirements. Ensure compatibility with the master controller's ability to implement the UNI/O protocol timing and handshake sequences accurately.

Selection Notes

Select this component when a single I/O interface is preferred to minimize pin usage compared to standard SPI or I2C memories. Consider the 16-byte page buffer size for write efficiency. Verify that the 2.5 V minimum supply voltage meets the system's lowest operating condition.

Part Context

This part belongs to the 11XX family of UNI/O Serial EEPROMs from Microchip Technology. The family includes variants with densities ranging from 1 Kbit to 16 Kbit. The 'LC' designation indicates a 2.5 V minimum operating voltage, distinguishing it from 'AA' variants that support lower voltages down to 1.8 V.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.