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Microchip Technology 11LC020T-E/MS
- Part No.:
- 11LC020T-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
11LC020T-E/MS.pdf
- Description:
- IC EEPROM 2KBIT SGL WIRE 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
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Product details
Overview
11LC020T-E/MS from Microchip Technology Inc. is a 2 Kbit (256 × 8) serial EEPROM using the UNI/O® single I/O bus interface. It operates from 2.5V to 5.5V, delivers 1 mA typical active current and 1 µA max standby current over –40°C to +125°C, and supports 100 kbps bit rate with Manchester-encoded SCIO signaling. It is used in automotive body control modules for storing calibration data and configuration parameters.
For engineers reviewing the 11LC020T-E/MS datasheet, 11LC020T-E/MS pinout, 11LC020T-E/MS application, or 11LC020T-E/MS equivalent, key selection considerations include its automotive-grade temperature range, page-write buffer (16 bytes), STATUS register with WIP/WEL bits, block write protection options, and SOT-23-3 package compatibility with space-constrained PCB layouts.
Technical Context
The 11LC020T-E/MS implements a Manchester-encoded, master-controlled UNI/O® bus protocol on a single bidirectional SCIO line, eliminating need for separate clock and data lines. Its internal architecture includes a 16-byte page latch, status register with write-enable and write-in-progress flags, and hardware-based block protection (none/¼/½/all array).
It features Schmitt-trigger SCIO input for noise immunity, output slope control to suppress ground bounce, and re-synchronization circuitry tolerant of ±0.50% frequency drift per byte and ±0.06 UI edge jitter. Write cycles are self-timed (max 10 ms), with endurance rated at 1 million erase/write cycles and data retention exceeding 200 years.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 2 Kbit (256 × 8 organization) - fixed memory map enabling deterministic addressing without external address decoding logic |
| VCC Range | 2.5V to 5.5V - supports direct connection to 3.3V or 5V microcontroller I/O rails without level shifting |
| Interface | Single I/O UNI/O® bus (SCIO) - reduces PCB routing complexity and pin count versus I²C/SPI |
| Max Bit Rate | 100 kbps - enables sub-100 µs read/write transactions suitable for real-time configuration updates |
| Write Cycle Time | ≤10 ms (page or byte) - deterministic timing allows precise host firmware timeout handling |
| Temp Range | –40°C to +125°C (Automotive E-temp) - qualified for under-hood and powertrain control unit deployment |
| Endurance | 1,000,000 erase/write cycles - supports frequent recalibration logging in adaptive systems |
| Data Retention | >200 years - ensures long-term reliability across vehicle lifetime without refresh mechanisms |
Pinout & Package
11LC020T-E/MS is packaged in an 8-lead MSOP (MS) package, measuring 3.0 mm × 3.0 mm × 1.0 mm, with exposed pad for thermal dissipation. Pin 1 is SCIO (Serial Clock/Data I/O), Pin 2 is VSS (Ground), Pin 3 is VCC (Supply Voltage); Pins 4–8 are No Connect (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock/Data I/O | Bidirectional Manchester-encoded signal carrying clock and data; requires external pull-up resistor (typically 10 kΩ) |
| VSS | Ground Reference | Primary return path for SCIO driver and internal logic; must be low-impedance to support slope-controlled output |
| VCC | Power Supply Input | Supplies core logic and EEPROM array; bypass capacitor (0.1 µF) required within 5 mm of pin |
| NC (Pins 4–8) | No Connection | Not internally bonded; must remain unconnected to avoid parasitic coupling or ESD path disruption |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Single I/O Interface | Reduces system-level wiring to one signal plus power/ground - ideal for ultra-low-pin-count MCUs and sensor nodes |
| Page-Write Buffer (16 bytes) | Enables burst writes within same physical page, minimizing host transaction overhead and improving update efficiency |
| Status Register (WIP/WEL/BP) | Allows real-time monitoring of write progress and protection state without halting other operations or polling memory |
| Schmitt Trigger + Slope Control | Rejects high-frequency noise on SCIO and eliminates ground bounce during transitions - critical for noisy automotive environments |
| Block Write Protection | Hardware-configurable via STATUS register to lock 0%, 25%, 50%, or 100% of memory - prevents accidental firmware corruption |
| Auto-Erase Before Write | Eliminates need for explicit erase commands; simplifies host firmware and guarantees data integrity before programming |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Calibration Storage |
|---|---|
Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in automotive BCMs. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed infrequently during power-up or user adjustment. Use Value: Automotive temperature rating and 1M-cycle endurance ensure reliable recall across 15+ year vehicle life with zero maintenance. |
Use Scenario: Holding engine trim tables, fuel injection timing offsets, and OBD-II diagnostic codes in ECUs. IC Role / Device Role / Timing Role: Read-once/write-rarely parameter store updated only during dealer reprogramming or adaptive learning. Use Value: Block write protection prevents field updates from corrupting critical calibration data during software flashing. |
| Smart Sensor Node | Infotainment System Settings |
Use Scenario: Retaining factory-set sensor gain, offset, and linearization coefficients in industrial pressure sensors. IC Role / Device Role / Timing Role: Static configuration memory accessed once per power cycle during sensor initialization. Use Value: Low 1 µA standby current extends battery life in wireless sensor networks; single-I/O interface minimizes footprint. |
Use Scenario: Saving user preferences (volume, equalizer, display brightness) in automotive head units. IC Role / Device Role / Timing Role: Frequent small writes (e.g., after each volume change) requiring fast, reliable nonvolatile storage. Use Value: 100 kbps bit rate and 16-byte page buffer enable sub-millisecond save operations without blocking UI responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02C-SSHM-T | I²C interface (2-wire), 1.7–5.5V supply, 400 kHz max clock, SOIC-8 package | Requires two dedicated I/O lines (SCL/SDA); lacks UNI/O® single-pin advantage and automotive temp rating | Select when existing design uses I²C infrastructure and does not require E-temp or minimal pin count |
| BR24G02FJ-3GE2 | 1.7–5.5V, 400 kHz I²C, 125°C operation, TSSOP-8, built-in write protect pin | Higher pin count, no page buffer (byte-only writes), no STATUS register visibility during write | Choose for designs needing hardware WP pin control and where I²C is already implemented |
Compared with AT24C02C-SSHM-T and BR24G02FJ-3GE2, the 11LC020T-E/MS uniquely combines automotive temperature range, single-I/O UNI/O® interface, and real-time STATUS register access-making it optimal for new space- and pin-constrained automotive subsystems where I²C overhead is prohibitive.
Availability
11LC020T-E/MS is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor calibration, and consumer infotainment systems requiring stable component supply across extended product lifecycles.
Supply support for 11LC020T-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products, with broad automotive qualification and AEC-Q100 compliance expertise.
The 11LC020T-E/MS belongs to Microchip's 11XX UNI/O® EEPROM family, designed specifically for cost-sensitive, space-constrained automotive and industrial applications requiring robust single-wire serial memory with extended temperature operation.
FAQ
What is the operating voltage range for the 11LC020T-E/MS?
The 11LC020T-E/MS operates from 2.5V to 5.5V DC. This range supports direct integration with common 3.3V and 5V microcontroller I/O domains without level-shifting circuitry. Operation below 2.5V is not guaranteed - unlike the 11AAxxx series, the 11LC020T-E/MS is not specified for 1.8V operation.
Does the 11LC020T-E/MS support page writes, and what is the buffer size?
Yes, the 11LC020T-E/MS supports page writes with a 16-byte buffer. Up to 16 bytes can be loaded into the buffer before initiating the internal write cycle. Writes crossing physical page boundaries (every 16 bytes) wrap within the same page - host firmware must enforce alignment to avoid unintended overwrites.
How is write protection implemented on the 11LC020T-E/MS?
Write protection is controlled via BP0 and BP1 bits in the STATUS register, configurable through the WRSR command. These bits enable hardware locking of 0%, 25%, 50%, or 100% of the memory array. Protection is nonvolatile and persists across power cycles - no external WP pin is required.
What package type is used for the 11LC020T-E/MS, and what are its dimensions?
The 11LC020T-E/MS uses an 8-lead MSOP (MS) package, 3.0 mm × 3.0 mm × 1.0 mm body size with exposed thermal pad. Pin 1 is SCIO, Pin 2 is VSS, Pin 3 is VCC, and Pins 4–8 are NC. The MSOP footprint is compatible with standard reflow profiles and offers better thermal performance than SOT-23.
Can the 11LC020T-E/MS be used in place of I²C EEPROMs like the 24C02?
No - the 11LC020T-E/MS uses the proprietary UNI/O® single-I/O protocol, not I²C. It requires dedicated UNI/O®-capable firmware drivers and cannot be substituted directly for I²C devices without hardware and software redesign. Its advantages lie in pin reduction and noise immunity, not protocol compatibility.
11LC020T-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 x 8
- Memory Interface:
- Single Wire
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
11LC020T-E/MS FAQ
1.How can I place an order for 11LC020T-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 11LC020T-E/MS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 11LC020T-E/MS reliable?
The price and inventory of 11LC020T-E/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11LC020T-E/MS is usually 5 days.
3.What payment methods are accepted for 11LC020T-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11LC020T-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11LC020T-E/MS?
11LC020T-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11LC020T-E/MS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 11LC020T-E/MS?
For technical support, including 11LC020T-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11LC020T-E/MS requirements.
6.How does Aetrix verify that 11LC020T-E/MS is sourced from the original manufacturer or authorized distributors?
All 11LC020T-E/MS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 11LC020T-E/MS meets industry standards.
7.What is the process for return or replacement of 11LC020T-E/MS?
All 11LC020T-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 11LC020T-E/MS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 11LC020T-E/MS part is unused and in its original packaging.
Return procedure for 11LC020T-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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