11LC040T-I/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
The 11LC040T-I/MNY is a 4 Kbit single-wire serial EEPROM from Microchip, organized as 512 x 8 bits, operating from 2.5V to 5.5V with a 1 MHz clock and 1 million write/erase endurance cycles. It retains data for a minimum of 200 years and is housed in a compact 8-pin TDFN no-lead package. Ideal for calibration data storage, configuration parameters, and secure identification in space-constrained embedded systems.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 11LC040T-I/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2319(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 Kbit (512 x 8) EEPROM density with single-wire UNI/O serial interface
- 1 million write/erase cycle endurance for frequent parameter updates
- 200-year minimum data retention ensuring long product lifetimes
- Wide 2.5V to 5.5V supply range compatible with 3.3V and 5V systems
- 1 MHz maximum clock frequency for fast serial access
- Compact 8-pin TDFN no-lead package minimizing PCB footprint
Applications
The 11LC040T-I/MNY is used in applications requiring non-volatile storage of calibration constants, product serial numbers, and configuration parameters accessed infrequently by a host microcontroller. Its single-wire UNI/O interface reduces pin count to just one data line plus power, making it attractive for IoT sensor nodes, wearable devices, and smart card accessories with severe space constraints. High endurance of 1 million cycles also suits applications such as adaptive motor driver calibration tables and power supply trim registers that update settings thousands of times over product life.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 9Weeks |
| YTEOL | 9 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e4 |
| Memory Density | 4096bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 512words |
| Number of Words Code | 512 |
| Operating Mode | SYNCHRONOUS |
| Organization | 512X8 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Ready/Busy | NO |
| Reverse Pinout | NO |
| Screening Level | AEC-Q100 |
| Serial Bus Type | 1-WIRE |
| Standby Current-Max | 0.000005A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Toggle Bit | NO |
| Write Cycle Time-Max (tWC) | 10ms |
| Write Protection | SOFTWARE |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much data can the 11LC040T-I/MNY store and how is it organized internally?
The 11LC040T-I/MNY stores 4 Kbits organized as 512 bytes of 8-bit words. This is sufficient for holding calibration tables, device serial numbers, network credentials, or trim parameters in embedded systems where a dedicated EEPROM avoids wearing out the microcontroller flash, which typically endures only 10 000 write cycles versus this device supporting 1 million cycles.
What makes the single-wire UNI/O interface of the 11LC040T-I/MNY advantageous for pin-limited microcontrollers?
The UNI/O interface requires only 1 data line at 1 MHz, compared to 2 lines for I2C and 4 lines for SPI. This single-pin connection is valuable in 8-pin microcontroller designs or add-on modules where every I/O pin is allocated, allowing non-volatile storage to be added without redesigning the pin assignment or switching to a larger MCU package.
How does the 200-year data retention of the 11LC040T-I/MNY compare to typical EEPROM products?
A 200-year minimum data retention exceeds the 100-year figure cited by many standard EEPROMs, ensuring that factory calibration constants and unique device identifiers written at manufacturing remain intact for the entire product field life. This is critical in medical, utility metering, and industrial calibration equipment expected to operate for 20 or more years without battery-backed RAM.
Which supply voltage systems are compatible with the 11LC040T-I/MNY, and can it coexist with a 3.3V microcontroller?
The 11LC040T-I/MNY operates across 2.5V to 5.5V, covering 3.3V and 5V logic systems without level translators. A 3.3V microcontroller can drive the UNI/O data line directly, and the EEPROM will operate correctly at full 1 MHz clock speed, with active current typically below 1 mA and standby current in the low microampere range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3830 | $0.38 |
| 100+ | $0.3300 | $33.00 |
| 250+ | $0.2854 | $71.35 |
| 500+ | $0.2497 | $124.85 |
| 1000+ | $0.2319 | $231.90 |
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