Microchip Technology 11LC010-E/MS

Overview

11LC010-E/MS from Microchip Technology is a 1 Kbit (128 × 8) serial EEPROM using the UNI/O® single I/O bus interface, operating from 2.5V to 5.5V with 1 mA typical active current and 1 µA max standby current over –40°C to +125°C. It features Manchester-encoded communication, 16-byte page-write buffer, STATUS register with WIP/WEL bits, and hardware block write protection for automotive-grade embedded systems.

For engineers reviewing the 11LC010-E/MS datasheet, 11LC010-E/MS pinout, 11LC010-E/MS application, or 11LC010-E/MS equivalent, key selection considerations include its 3-lead MSOP package, UNI/O® bus timing tolerance (±0.5% frequency drift per byte), Schmitt-trigger SCIO input, slope-controlled output to suppress ground bounce, and automotive temperature qualification.

Technical Context

The 11LC010-E/MS implements a Manchester-encoded, master-driven UNI/O® protocol on a single bidirectional SCIO line, requiring no external clock. Its internal re-synchronization circuitry tracks master bit period (10–100 kHz) and tolerates ±0.06 UI input edge jitter and ±0.5% bus frequency drift per byte.

It integrates a 16-byte page-write buffer, STATUS register with nonvolatile BP0/BP1 block protection bits, and current-limited SCIO driver (±4 mA at 5.5V). Write operations are self-timed (max 10 ms), with built-in power-on/off data protection and automatic erase before write.

Key Specifications

Pinout & Package

11LC010-E/MS is packaged in an 8-lead MSOP (MS) with exposed pad, footprint-compatible with SOIC but with 50% smaller area. Pin 1 = SCIO (bidirectional serial clock/data), Pin 2 = VSS (ground), Pin 3 = VCC (supply), Pins 4–8 = NC (no connect).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Compared with 11AA010-I/MS, the 11LC010-E/MS provides guaranteed operation at 125°C and excludes sub-2.5V operation - trading voltage flexibility for automotive robustness. Against AT24C01C-SSHM-T, it offers superior EMI immunity and pin count reduction at the cost of interface ecosystem compatibility.

Availability

11LC010-E/MS is available at Aetrix Electronics and suitable for automotive electronics, engine control units, and advanced driver assistance systems requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for 11LC010-E/MS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 11LC010-E/MS belongs to Microchip's UNI/O® Serial EEPROM family, designed specifically for space-constrained, noise-prone automotive and industrial applications where minimal pin count, high reliability, and extended temperature operation are mandatory.

FAQ

What is the UNI/O® bus interface used by the 11LC010-E/MS?

The 11LC010-E/MS uses Microchip's patented UNI/O® bus - a single-wire, Manchester-encoded serial interface that combines clock and data on the SCIO pin. Unlike I²C or SPI, it requires only one I/O line plus power and ground, reducing routing complexity and EMI susceptibility. The 11LC010-E/MS implements full protocol compliance including start headers, MAK/NoMAK handshaking, and re-synchronization to tolerate master clock drift up to ±0.5% per byte.

Does the 11LC010-E/MS support write protection, and how is it configured?

Yes, the 11LC010-E/MS supports hardware block write protection via two nonvolatile BP0 and BP1 bits in its STATUS register. These bits are programmed using the WRSR (Write Status Register) command and can protect 0%, 25%, 50%, or 100% of the memory array. Protection is enforced at the hardware level - writes to protected blocks are ignored without error flagging. The 11LC010-E/MS also includes built-in power-on/off write protection and a write enable latch (WEL) that must be set via WREN before any write operation.

What is the maximum write speed and endurance specification for the 11LC010-E/MS?

The 11LC010-E/MS supports a maximum serial bus frequency of 100 kHz (100 kbps), with typical page-write cycle time of 5 ms and maximum of 10 ms. Its endurance is rated at 1,000,000 erase/write cycles per memory location, verified at 25°C and 5.5V. Data retention exceeds 200 years under normal operating conditions. These specifications apply directly to the 11LC010-E/MS and are guaranteed across its full automotive temperature range (–40°C to +125°C).

Can the 11LC010-E/MS operate from a 3.3V supply, and what are its current consumption figures?

Yes, the 11LC010-E/MS operates across 2.5V to 5.5V, fully supporting 3.3V nominal supplies. At VCC = 3.3V and TA = 25°C, typical active current (ICC Read) is ≤1.5 mA, and standby current (Iccs) is ≤1 µA at 85°C. These values meet stringent automotive low-power requirements. The 11LC010-E/MS maintains full functionality - including UNI/O® timing compliance and write performance - across its entire specified VCC range without derating.

What package type does the 11LC010-E/MS use, and are there pin-compatible alternatives?

The 11LC010-E/MS is supplied in an 8-lead MSOP (MS) package with exposed pad, measuring 4.9 mm × 6.0 mm × 1.1 mm. It shares the same pinout (SCIO-VSS-VCC-NC-NC-NC-NC-NC) as other 11XX family members in MSOP, but is not pin-compatible with SOIC or PDIP variants due to differing lead counts and spacing. No direct pin-to-pin alternative exists outside the 11XX family; however, the 11LC010-E/SN (SOIC-8) and 11LC010-E/P (PDIP-8) offer identical functionality in alternate packages.