11AA160-I/P

Overview

The Microchip Technology 11AA160-I/P is a 16 Kbit serial electrically erasable programmable read-only memory (EEPROM) device. It features a 2,048 x 8 bit organization and utilizes the UNI/O single I/O serial interface bus. The component operates within a supply voltage range of 1.8V to 5.5V and supports an industrial temperature range from -40°C to +85°C. It is housed in an 8-lead PDIP package.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding for combined clock and data transmission on the SCIO pin.
• Includes built-in write protection mechanisms such as power-on/off data protection circuitry and a write enable latch.
• Features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Provides block write protection capabilities allowing none, one-quarter, one-half, or all of the array to be protected.

Applications

• Interfacing with microcontrollers including PIC devices via discrete I/O lines configured for the UNI/O protocol.
• ASIC applications requiring low-pin-count non-volatile data storage.
• Systems utilizing standard packages like 8-lead PDIP for through-hole mounting.

Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type and temperature grade. Confirm that the device address matches system requirements, as the 11AA160 uses a hardwired device code. Ensure compatibility with the master controller's ability to generate the necessary start headers and standby pulses for the UNI/O protocol.

Selection Notes

Select this part when a single I/O interface is preferred over multi-wire buses to minimize pin count. Choose the 11AA160 variant specifically for its 1.8V minimum operating voltage capability, distinguishing it from the 11LC family which requires a higher minimum voltage. Consider the 8-lead PDIP package for applications requiring through-hole installation.

Part Context

This component belongs to the 11XX family of serial EEPROMs, which ranges from 1 Kbit to 16 Kbit densities. The 'AA' prefix indicates support for operation down to 1.8V, while the 'I' suffix denotes the industrial temperature rating. The 'P' suffix identifies the 8-lead PDIP package format.

Replacement Considerations

Public confirmed substitute part numbers: 11AA160-I/SN, 11AA160-I/MS, 11AA160-I/MN, 11AA160-I/TO, 11AA160-I/TT, 11AA160-I/CS.