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11LC161-I/TO is listed in the Memory IC range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC EEPROM 16KBIT SGL WIRE TO92-3. Review the specifications below when checking this part for your BOM.
Memory IC specifications for 11LC161-I/TO
- Description：IC EEPROM 16KBIT SGL WIRE TO92-3
- Series：-
- Mfr：Microchip Technology
- Package：Bag
- Memory Type：Non-Volatile
- Memory Format：EEPROM
- Technology：EEPROM
- Memory Size：16Kbit
- Memory Organization：2K x 8
- Memory Interface：Single Wire
- Clock Frequency：100 kHz
- Write Cycle Time - Word, Page：5ms
- Voltage - Supply：2.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Access Time：-
- Grade：-
- Qualification：-
Memory IC datasheet and documents for 11LC161-I/TO
Memory IC Overview
The Microchip Technology 11LC161-I/TO is a 16 Kbit (2048 x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes the UNI/O single I/O bus interface with Manchester encoding for clock and data transmission. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports a maximum bit rate of 100 kbps. It features industrial temperature ratings from -40°C to +85°C, high endurance of one million erase/write cycles, and data retention exceeding 200 years.
Memory IC Feature Summary
- Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding on the SCIO pin.
Memory IC Applications
- Microcontroller system configuration storage
- Embedded device parameter logging
- Low-pin-count sensor data recording
Memory IC Procurement Notes
Verify the specific package suffix 'TO' corresponds to the TO-92 form factor in official documentation. Confirm that the 'I' suffix indicates the Industrial temperature range (-40°C to +85°C). Ensure the device address code '1' matches the required bus addressing scheme for the target application.
Memory IC Selection Notes
Select this component when a single-wire interface is required to minimize PCB trace count. The 11LC161 offers a dedicated device address distinct from the 11LC160 series, allowing mixed usage on the same bus. Verify power supply stability as the device lacks internal voltage regulators.
Memory IC Part Context
This part belongs to the 11LCXXX family of serial EEPROMs designed for low-cost, space-constrained embedded applications. The family shares common electrical characteristics and command sets, differing primarily in density and device addressing codes. The 11LC161 specifically provides 16 Kbit capacity with a unique address identifier.
Memory IC Replacement Considerations
The 11LC160-I/TO is functionally similar but uses a different device address ('0'). Cross-referencing requires software modification to accommodate the address change. Other 11LCXXX variants may serve as substitutes if density and package compatibility are verified.
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