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Microchip Technology 11LC020T-E/MNY
- Part No.:
- 11LC020T-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
11LC020T-E/MNY.pdf
- Description:
- IC EEPROM 2KBIT SGL WIRE 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,271
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Product details
Overview
11LC020T-E/MNY from Microchip Technology Inc. is a 2 Kbit (256 × 8) serial EEPROM with UNI/O® single-I/O bus interface, operating from 2.5V to 5.5V across -40°C to +125°C (Automotive E-temp), featuring 16-byte page write buffer, 1 µA max standby current, and Schmitt-trigger SCIO input for noise immunity in space-constrained automotive sensor modules.
For engineers reviewing the 11LC020T-E/MNY datasheet, 11LC020T-E/MNY pinout, 11LC020T-E/MNY application, or 11LC020T-E/MNY equivalent, this device is selected for low-pin-count, high-reliability nonvolatile storage where I²C/SPI are unavailable, power budget is sub-10 µA in sleep mode, and automotive-grade temperature stability is required.
Technical Context
The 11LC020T-E/MNY implements Manchester-encoded UNI/O® protocol over a single bidirectional SCIO line, eliminating clock skew and reducing PCB routing complexity. Its internal architecture includes a 16-byte page latch, STATUS register with WIP/WEL/BP bits, and auto-erase-before-write logic - all synchronized via master-controlled bit timing with ±5% frequency drift tolerance per command.
It uses CMOS EEPROM cell technology with >1 million erase/write cycles and >200-year data retention, supported by built-in power-on/off write protection and block-level write protection (none/¼/½/all array). The SCIO driver features slope control to suppress ground bounce and Schmitt-trigger input for robust operation in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 2 Kbit (256 × 8 organization) - supports compact configuration storage without external address lines |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V automotive microcontroller I/O domains |
| Temp Range | -40°C to +125°C (Automotive E-grade) - qualified for under-hood and ADAS module deployment |
| Standby Current | ≤1 µA at TA = 125°C - enables always-on memory retention in battery-backed systems |
| Write Cycle Time | ≤10 ms (page or byte) - deterministic latency for firmware update logging and fault record storage |
| Endurance | 1,000,000 erase/write cycles - supports frequent parameter logging in telematics gateways |
| Data Retention | >200 years at 125°C - ensures calibration data integrity over full vehicle lifecycle |
Pinout & Package
11LC020T-E/MNY is housed in an 8-lead MSOP (MN) package - thermally enhanced, surface-mountable, and footprint-compatible with SOIC-8 but with 30% smaller area (3.0 × 3.0 mm). Pin 1 is SCIO (bidirectional serial clock/data), Pin 2 is VSS (ground), Pin 3 is NC (no connect), Pin 4 is NC, Pin 5 is NC, Pin 6 is NC, Pin 7 is NC, Pin 8 is VCC (supply voltage).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock/Data I/O | Manchester-encoded bidirectional bus line - requires no external pull-up; integrates slope control and Schmitt trigger |
| VSS | Ground Reference | Primary return path for internal EEPROM programming current and logic switching |
| VCC | Supply Voltage Input | Power rail for HV generator, memory array, and I/O drivers - must be stable during write cycles |
| NC (Pins 3–7) | No Connect | Internally unconnected; must remain floating or tied to VSS per layout guidelines to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Single-I/O Interface | Reduces MCU pin count and PCB trace count vs. I²C/SPI - ideal for 8-pin microcontrollers in cost-sensitive modules |
| Page Write Buffer (16 bytes) | Enables burst writes within one physical page (0x00–0x0F, 0x10–0x1F, etc.), cutting total write time by up to 8× vs. byte-wise writes |
| Status Register Access | Real-time monitoring of Write-In-Progress (WIP) and Write-Enable Latch (WEL) states without halting host MCU execution |
| Block Write Protection | Hardware-configurable BP0/BP1 bits allow locking 0%, 25%, 50%, or 100% of memory - prevents accidental firmware corruption |
| Automotive Temperature Grade | Qualified per AEC-Q100 Class 0 (−40°C to +125°C) - validated for engine control units, body controllers, and lighting modules |
Applications
| Engine Control Unit (ECU) Calibration Storage | Automotive Seat Memory Module |
|---|---|
|
Use Scenario: Storing adaptive fuel trim values, knock sensor thresholds, and idle learning parameters that persist across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed infrequently (<10 writes/hour) but requiring guaranteed retention at 125°C ambient. Use Value: Eliminates need for external I²C EEPROM and level-shifting circuitry - reduces BOM count and improves thermal margin in cramped ECU enclosures. |
Use Scenario: Saving seat position, mirror angle, and climate preferences for multiple drivers in premium vehicles. IC Role / Device Role / Timing Role: Low-power shadow memory updated only on user command, retaining data for >15 years without backup battery. Use Value: Enables direct connection to 3.3V CAN microcontroller GPIO with no external components - simplifies ASIL-B compliant design verification. |
| LED Headlamp Driver Configuration | Telematics Control Unit (TCU) Event Log |
|
Use Scenario: Holding PWM dimming curves, thermal derating tables, and fault history for adaptive driving beam systems. IC Role / Device Role / Timing Role: High-reliability parameter store subject to repeated thermal cycling (−40°C ↔ +125°C) and ESD transients near headlamp harnesses. Use Value: Schmitt-trigger SCIO and 4 kV HBM ESD rating ensure robust communication over long traces in noisy power electronics environments. |
Use Scenario: Recording GPS timestamps, crash event flags, and diagnostic trouble codes (DTCs) during vehicle operation. IC Role / Device Role / Timing Role: High-endurance logging buffer supporting up to 1000 writes/day for 10+ years - critical for warranty analytics and OTA update validation. Use Value: 1 M cycle endurance and 200-year retention guarantee field data integrity without periodic refresh or wear-leveling firmware overhead. |
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, 8-lead SOIC package | Requires dedicated SCL/SDA pins and external pull-ups; lacks UNI/O® single-line simplicity | Select when existing I²C infrastructure exists and pin count is not constrained |
| BR24G02FJ-3GE2 | UNI/O®-compatible but 1.7–5.5V range, industrial temp only (−40°C to +85°C), 8-lead TSSOP | Not qualified for automotive E-temp; lower max VCC (5.5V same) but no 125°C validation | Select for cost-sensitive industrial controls where extended temperature is unnecessary |
Compared with AT24C02C-SSHM-T and BR24G02FJ-3GE2, the 11LC020T-E/MNY uniquely delivers automotive-grade reliability with single-I/O simplicity - enabling direct integration into pin-limited MCUs without bus arbitration or signal integrity compromises.
Availability
11LC020T-E/MNY is available at Aetrix Electronics and suitable for automotive ECU calibration storage, seat memory modules, LED headlamp configuration, telematics event logging, and body control unit parameter retention requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 11LC020T-E/MNY 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 solutions, with broad automotive qualification and AEC-Q100-compliant product portfolios.
The 11LC020T-E/MNY belongs to Microchip's UNI/O® Serial EEPROM family, designed specifically for space- and pin-constrained automotive and industrial systems requiring robust, low-power nonvolatile storage with minimal interface overhead.
FAQ
What is the UNI/O® interface used by the 11LC020T-E/MNY, and how does it differ from I²C or SPI?
The 11LC020T-E/MNY uses Microchip's patented UNI/O® bus - a single-wire, Manchester-encoded serial interface that combines clock and data on the SCIO line. Unlike I²C (2-wire with pull-ups) or SPI (4-wire with dedicated clock), UNI/O® eliminates separate clock lines and slave addressing overhead, reducing MCU pin usage and PCB routing complexity. It operates at up to 100 kbps and supports automatic synchronization and jitter tolerance, making it ideal for resource-constrained automotive nodes where 11LC020T-E/MNY replaces larger interface EEPROMs.
Does the 11LC020T-E/MNY support hardware write protection, and how is it configured?
Yes, the 11LC020T-E/MNY supports hardware-based 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 enable protection of 0%, 25%, 50%, or 100% of the memory array - preventing accidental overwrites during firmware updates or power faults. This feature is fully implemented in silicon and remains active across power cycles, ensuring persistent security for critical calibration data stored in 11LC020T-E/MNY.
What is the maximum write endurance and data retention specification for the 11LC020T-E/MNY?
The 11LC020T-E/MNY guarantees 1,000,000 erase/write cycles per memory location and >200 years of data retention at +125°C ambient temperature. These specifications are validated per JEDEC standards and reflect actual measured performance - not extrapolated estimates. For high-frequency logging applications, this means 11LC020T-E/MNY can reliably store daily diagnostic snapshots for over a decade without wear leveling, and retain factory calibration settings throughout the full vehicle service life.
Can the 11LC020T-E/MNY operate at 1.8V, or is it limited to 2.5V–5.5V?
The 11LC020T-E/MNY is specified for 2.5V to 5.5V operation only - it does not support 1.8V supply. This distinguishes it from the 11AA020 variant (which supports 1.8V–5.5V) and confirms its targeting of higher-voltage automotive subsystems such as 3.3V or 5V power domains. Attempting to power 11LC020T-E/MNY below 2.5V may result in unreliable read/write behavior or STATUS register corruption, so system design must ensure VCC remains within the validated 11LC020T-E/MNY range.
How is the SCIO pin electrically characterized on the 11LC020T-E/MNY, and what layout guidance applies?
The SCIO pin on the 11LC020T-E/MNY features Schmitt-trigger input with 5% VCC hysteresis (min), output slope control to limit di/dt, and ±4 mA drive capability at 5.5V. Layout guidance requires minimizing trace length (<5 cm), avoiding routing near switching power nets, and using a local 100 pF decoupling capacitor between VCC and VSS near the MSOP package. No external pull-up is needed - unlike I²C - because SCIO is actively driven during communication, and its integrated design ensures reliable Manchester decoding even in high-noise engine bay environments where 11LC020T-E/MNY is deployed.
11LC020T-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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-TDFN (2x3)
11LC020T-E/MNY FAQ
1.How can I place an order for 11LC020T-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 11LC020T-E/MNY 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/MNY reliable?
The price and inventory of 11LC020T-E/MNY 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/MNY is usually 5 days.
3.What payment methods are accepted for 11LC020T-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11LC020T-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11LC020T-E/MNY?
11LC020T-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11LC020T-E/MNY 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/MNY?
For technical support, including 11LC020T-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11LC020T-E/MNY requirements.
6.How does Aetrix verify that 11LC020T-E/MNY is sourced from the original manufacturer or authorized distributors?
All 11LC020T-E/MNY 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/MNY meets industry standards.
7.What is the process for return or replacement of 11LC020T-E/MNY?
All 11LC020T-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 11LC020T-E/MNY, 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/MNY part is unused and in its original packaging.
Return procedure for 11LC020T-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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