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Microchip Technology 11AA010T-I/MNY
- Part No.:
- 11AA010T-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
11AA010T-I/MNY.pdf
- Description:
- IC EEPROM 1KBIT SGL WIRE 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,470
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Product details
Overview
11AA010T-I/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) serial EEPROM with UNI/O® single I/O bus interface, operating from 1.8V to 5.5V, featuring 16-byte page write buffer, Schmitt-trigger SCIO input, and 1 µA max standby current at I-temp (−40°C to +85°C). It is used in space-constrained embedded systems for parameter storage, calibration data retention, and firmware configuration.
For engineers reviewing the 11AA010T-I/MNY datasheet, 11AA010T-I/MNY pinout, 11AA010T-I/MNY application, or 11AA010T-I/MNY equivalent, key selection criteria include its 1.8V minimum supply, UNI/O® bus compatibility with discrete GPIO, 1 M erase/write cycle endurance, >200-year data retention, and SOT-23-3 package footprint.
Technical Context
The 11AA010T-I/MNY implements Manchester-encoded UNI/O® protocol over a single bidirectional SCIO line, eliminating need for separate clock and data lines. Its internal timing recovery circuitry synchronizes to master bit period during start header and re-synchronizes on each MAK edge, tolerating ±0.50% frequency drift per byte and ±0.06 UI input jitter.
It integrates a status register with WIP and WEL flags, block write protection (BP0/BP1), and hardware write protection via power-on reset and write enable latch. The device uses on-chip high-voltage generation for EEPROM programming and includes slope-controlled output to suppress ground bounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 1 Kbit (128 × 8 organization) - fixed memory map enabling deterministic addressing in low-pin-count systems |
| VCC Range | 1.8V to 5.5V - supports direct interfacing with 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters |
| Interface | UNI/O® single I/O bus - reduces PCB routing to one signal plus VCC/VSS, ideal for 3-pin SOT-23 packaging |
| Page Size | 16 bytes - enables efficient burst writes within a single physical page boundary (0x00–0x0F, 0x10–0x1F, etc.) |
| Write Endurance | 1,000,000 cycles - ensures long-term reliability in field-updatable calibration or logging applications |
| Data Retention | >200 years at 85°C - guarantees nonvolatile storage integrity across product lifetime under industrial thermal stress |
| Standby Current | 1 µA max (I-temp) - minimizes quiescent power in battery-backed or energy-harvesting systems |
Pinout & Package
11AA010T-I/MNY is packaged in 3-lead SOT-23 (MNY suffix), with pin 1 = SCIO (Serial Clock/Data I/O), pin 2 = VSS (Ground), pin 3 = VCC (Supply Voltage). No NC pins are present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Single bidirectional serial I/O | Carries Manchester-encoded clock+data; requires external pull-up; supports noise-immune communication via Schmitt trigger input |
| VSS | Ground reference | Return path for all internal currents; must be connected directly to system ground plane to maintain signal integrity |
| VCC | Power supply input | Supplies core logic and EEPROM programming voltage; bypass capacitor (0.1 µF) required within 1 cm of pin |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Serial Interface | Single I/O eliminates dedicated clock line and reduces MCU pin count - critical for ultra-low-pin microcontrollers |
| Schmitt Trigger Input on SCIO | 0.05×VCC hysteresis rejects EMI and slow-rising signals - improves robustness in noisy industrial environments |
| Output Slope Control | Controlled edge rate prevents ground bounce during write cycles - avoids system-level noise coupling into analog sections |
| Status Register Access | Real-time WIP/WEL monitoring via RDSR command - enables software to poll write completion without timeout loops |
| Block Write Protection | BP0/BP1 bits allow selective locking of 0%, 25%, 50%, or 100% of memory - prevents accidental overwrite of critical firmware parameters |
Applications
| Smart Sensor Calibration Storage | IoT Device Configuration Memory |
|---|---|
|
Use Scenario: Storing factory-trimmed offset/gain coefficients and temperature compensation tables in MEMS pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during power-up initialization and runtime correction routines. Use Value: Enables sensor accuracy traceability and field recalibration without requiring larger SPI EEPROMs or MCU flash partitioning. |
Use Scenario: Holding Wi-Fi credentials, MQTT broker addresses, and OTA update keys in battery-powered edge nodes. IC Role / Device Role / Timing Role: Secure, low-power configuration store read at boot and updated only during provisioning or firmware updates. Use Value: Reduces BOM cost vs. integrated flash alternatives while maintaining data persistence through deep-sleep cycles. |
| Industrial PLC Parameter Backup | Medical Device Usage Log |
|
Use Scenario: Retaining user-defined setpoints, alarm thresholds, and scaling factors across power cycles in DIN-rail controllers. IC Role / Device Role / Timing Role: Fail-safe backup memory updated asynchronously during operator configuration changes. Use Value: Guarantees parameter continuity after brownout events, with 1 µA standby current minimizing auxiliary supply load. |
Use Scenario: Recording sterilization cycles, usage hours, and error codes in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant event logger with write-protection enabled during normal operation. Use Value: Meets IEC 62304 data integrity requirements via 1M-cycle endurance and >200-year retention at 85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11LC010T-I/MNY | Same 1 Kbit density and UNI/O® interface, but 2.5–5.5V VCC range - lacks 1.8V operation capability | Not suitable for 1.8V-only systems; requires level-shifting when interfaced with sub-2.5V MCUs | Select only if system VCC ≥2.5V and automotive temp range (−40°C to +125°C) is required |
| AT21CS01-SSHM-T | I²C interface (2-wire), 1 Kbit, 1.7–5.5V, 5-lead SOT23-5 package - adds ADDR pin for multi-device bus addressing | Requires two GPIOs (SCL/SDA); supports up to 8 devices on same bus; no UNI/O® compatibility | Choose when existing design uses I²C infrastructure or needs multiple EEPROMs on one bus |
Compared with 11AA010T-I/MNY, 11LC010T-I/MNY trades 1.8V support for extended temperature grade, while AT21CS01-SSHM-T replaces UNI/O® simplicity with I²C scalability - neither offers pin-to-pin replacement, and both require schematic and firmware interface changes.
Availability
11AA010T-I/MNY is available at Aetrix Electronics and suitable for smart sensor calibration storage, IoT device configuration memory, and industrial PLC parameter backup requiring stable component supply across extended production lifecycles.
Supply support for 11AA010T-I/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 manufacturer specializing in microcontrollers, analog devices, and memory products for embedded control applications.
The 11AA010T-I/MNY belongs to Microchip's UNI/O® serial EEPROM family, designed specifically for ultra-low-pin-count systems where board space and GPIO scarcity constrain traditional serial interface options.
FAQ
What is the UNI/O® interface used by the 11AA010T-I/MNY?
The 11AA010T-I/MNY uses Microchip's patented UNI/O® bus, a single-wire, Manchester-encoded serial interface that combines clock and data on the SCIO pin. This eliminates the need for separate clock lines and reduces MCU pin count - unlike I²C or SPI, it requires only one I/O plus power and ground. The 11AA010T-I/MNY implements full protocol compliance including start headers, MAK/NoMAK handshaking, and re-synchronization.
Does the 11AA010T-I/MNY support 1.8V operation?
Yes, the 11AA010T-I/MNY operates from 1.8V to 5.5V, making it compatible with modern low-voltage microcontrollers and battery-powered systems. Its 1 µA max standby current and 1 mA typical active current are specified down to 1.8V, unlike the 11LC010 series which requires minimum 2.5V. This allows direct connection to 1.8V logic without level translation circuitry.
How is write protection implemented on the 11AA010T-I/MNY?
The 11AA010T-I/MNY provides dual-layer write protection: hardware-based (power-on/off circuitry and write enable latch) and software-configurable (BP0/BP1 bits in STATUS register). Block protection can lock 0%, 25%, 50%, or 100% of the 128-byte array. The write enable latch must be set via WREN command before any write - it resets automatically after power-up or successful WRITE/WRSR/ERAL operations.
What package type does the 11AA010T-I/MNY use?
The 11AA010T-I/MNY is supplied in a 3-lead SOT-23 package (suffix MNY), with pin 1 = SCIO, pin 2 = VSS, pin 3 = VCC. This compact 2.9 mm × 1.6 mm footprint supports high-density PCB layouts and automated assembly. Unlike 8-lead variants (e.g., SOIC or MSOP), the SOT-23 version has no NC pins and relies solely on the UNI/O® single-I/O architecture.
Can the 11AA010T-I/MNY be used alongside other UNI/O® devices on the same bus?
Yes, multiple 11AA010T-I/MNY devices can share a single SCIO bus because each has a unique hardwired device address (0xA0 for "0" variants). The UNI/O® protocol supports multi-drop configurations - the master selects a target by sending its 8-bit address after the start header. However, all devices on the bus must operate within the same VCC and timing constraints to ensure reliable Manchester decoding.
11AA010T-I/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:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- Single Wire
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
11AA010T-I/MNY FAQ
1.How can I place an order for 11AA010T-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 11AA010T-I/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 11AA010T-I/MNY reliable?
The price and inventory of 11AA010T-I/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11AA010T-I/MNY is usually 5 days.
3.What payment methods are accepted for 11AA010T-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11AA010T-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11AA010T-I/MNY?
11AA010T-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11AA010T-I/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 11AA010T-I/MNY?
For technical support, including 11AA010T-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11AA010T-I/MNY requirements.
6.How does Aetrix verify that 11AA010T-I/MNY is sourced from the original manufacturer or authorized distributors?
All 11AA010T-I/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 11AA010T-I/MNY meets industry standards.
7.What is the process for return or replacement of 11AA010T-I/MNY?
All 11AA010T-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 11AA010T-I/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 11AA010T-I/MNY part is unused and in its original packaging.
Return procedure for 11AA010T-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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