11LC161T-I/TT

Overview

The Microchip Technology 11LC161T-I/TT is a 16 Kbit (2,048 x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes the UNI/O single I/O bus interface for communication. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 100 kHz. It is housed in a 3-lead SOT-23 package designed for surface mount installation. The component functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding on the SCIO pin.
• Includes a 16-byte page-write buffer to facilitate efficient data writing operations.
• Features built-in write protection mechanisms including power-on/off data protection and a write enable latch.
• Provides block write protection capabilities allowing configuration to protect none, one-quarter, one-half, or all of the memory array.

Applications

• Interfacing with microcontrollers requiring low-pin-count non-volatile storage
• ASIC applications needing compact serial memory solutions
• Systems utilizing discrete I/O lines configured for the UNI/O protocol

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the device address code corresponds to the system design requirements. Ensure compatibility with the host controller's ability to implement the UNI/O Manchester encoding protocol. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this part when a single-wire serial interface is preferred over multi-wire protocols like I2C or SPI. Choose this device for applications requiring robust noise suppression via Schmitt trigger inputs. Consider this component for designs where minimizing PCB footprint through small packages like SOT-23 is critical. Evaluate the 16-byte page buffer size against the application's write throughput needs.

Part Context

This component belongs to the 11LCXXX family of serial EEPROMs from Microchip Technology. The family offers densities ranging from 1 Kbit to 16 Kbit. The 'LC' designation indicates a minimum operating voltage of 2.5 V, distinguishing it from the 'AA' series which supports lower voltages down to 1.8 V. All devices in this family share the same UNI/O interface architecture.

Replacement Considerations

The 11LC160T-I/TT serves as a compatible substitute within the same package and interface family, offering identical electrical characteristics but with a reduced 8 Kbit storage capacity.