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Microchip Technology 11AA010-I/SN
- Part No.:
- 11AA010-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
11AA010-I/SN.pdf
- Description:
- IC EEPROM 1KBIT SGL WIRE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
11AA010-I/SN 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 industrial temperature (−40°C to +85°C). It is used in space-constrained embedded systems for parameter storage, calibration data retention, and configuration backup.
For engineers reviewing the 11AA010-I/SN datasheet, 11AA010-I/SN pinout, 11AA010-I/SN application, or 11AA010-I/SN equivalent, key selection considerations include its 1.8V minimum VCC, UNI/O® protocol compatibility, 100 kbps bit rate, 1 M erase/write cycle endurance, and SOT-23-3 package footprint.
Technical Context
The 11AA010-I/SN implements Manchester-encoded serial communication over a single SCIO line, eliminating separate clock lines and reducing PCB routing complexity. Its internal timing recovery circuitry synchronizes to master-generated bit periods and tolerates ±0.50% frequency drift per byte and ±0.06 UI edge jitter.
It integrates a status register with Write-In-Progress (WIP) and Write-Enable Latch (WEL) bits, plus nonvolatile block protection (BP0/BP1) enabling 0%, 25%, 50%, or 100% array write lock. Page-write operations are self-timed with 5–10 ms completion and require prior WREN activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 1 Kbit (128 × 8 organization) - fixed memory map for deterministic addressing and minimal firmware overhead |
| VCC Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic and legacy 3.3V/5V microcontrollers without level shifters |
| Interface | UNI/O® single I/O bus - reduces pin count and PCB real estate vs. I²C/SPI; requires only one GPIO with Manchester decoding |
| Write Cycle Time | 5–10 ms (byte or page) - enables predictable firmware timeout handling and eliminates polling delays beyond this window |
| Endurance | 1,000,000 erase/write cycles - suitable for high-frequency logging or dynamic configuration updates in industrial controllers |
| Data Retention | >200 years - ensures long-term reliability for sealed or maintenance-free devices such as smart meters and medical sensors |
| ESD Protection | >4,000V HBM - provides robustness against handling and system-level ESD events in factory and field environments |
Pinout & Package
11AA010-I/SN is packaged in 3-lead SOT-23 (SN suffix), with pin 1 = SCIO (Serial Clock/Data I/O), pin 2 = VSS (Ground), and pin 3 = VCC (Supply Voltage). The NC pins listed in generic package diagrams do not apply to this 3-pin variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock and Data I/O | Single bidirectional line carrying Manchester-encoded bitstream; includes Schmitt trigger input and slope-controlled output to suppress ground bounce |
| VSS | Ground Reference | Return path for all internal currents; must be low-impedance to maintain noise immunity during write cycles |
| VCC | Power Supply Input | Supplies core logic and EEPROM array; voltage range 1.8–5.5V enables operation across battery, LDO, and switching regulator rails |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Serial Interface | Reduces host MCU pin usage to one GPIO; eliminates clock line routing and simplifies layout in dense PCBs |
| 16-Byte Page Write Buffer | Enables burst writes up to 16 bytes per command, cutting firmware execution time and bus occupancy vs. byte-by-byte writes |
| Status Register Access | Allows real-time monitoring of WIP and WEL bits via RDSR command-no blocking delays required before read/write operations |
| Block Write Protection | Configurable via WRSR to lock 0%, 25%, 50%, or 100% of memory-prevents accidental overwrite of critical calibration or security data |
| Low-Power Operation | 1 µA max standby current at −40°C to +85°C enables always-on storage in energy-harvesting and battery-powered nodes |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
|
Use Scenario: Storing sensor offset/gain coefficients and linearization tables after factory calibration. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed 200+ year data retention and 1M-cycle endurance for recalibration cycles. Use Value: Eliminates need for external calibration EEPROM or costly laser trimming; supports field recalibration without hardware change. |
Use Scenario: Holding patient-specific therapy parameters and device serialization data in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power parameter storage with write-protection to prevent unauthorized modification of safety-critical settings. Use Value: Meets IEC 62304 Class B software requirements for persistent data integrity and tamper resistance. |
| Smart Energy Metering | Automotive Body Control Module |
|
Use Scenario: Recording tariff schedules, meter firmware version, and tamper-event logs in DIN-rail electricity meters. IC Role / Device Role / Timing Role: High-reliability data logger with 1.8V operation compatible with meter's supercapacitor backup supply. Use Value: Ensures uninterrupted data persistence during mains failure; withstands >100k power cycles over 20-year service life. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive door modules. IC Role / Device Role / Timing Role: Automotive-grade (I-temp) nonvolatile storage interfaced directly to 1.8V/3.3V MCUs via single GPIO. Use Value: Reduces BOM cost and PCB area vs. I²C EEPROM; supports rapid profile recall with sub-10ms write latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11LC010-I/SN | Same 1 Kbit density and UNI/O® interface, but VCC min = 2.5V (not 1.8V); identical pinout and timing. | Not suitable for 1.8V-only systems; requires level translation or higher supply rail. | Select 11LC010-I/SN only if system operates ≥2.5V and UNI/O® compatibility is prioritized over ultra-low-voltage support. |
| AT24C01C-SSHM-T | I²C interface (2-wire), 1 Kbit, 1.7V–5.5V VCC, 1 MHz max clock; no built-in page buffer or UNI/O® protocol. | Requires two dedicated MCU pins (SCL/SDA); lacks Manchester encoding and automatic synchronization. | Choose AT24C01C-SSHM-T when existing I²C infrastructure exists and pin count is not constrained. |
Compared with 11AA010-I/SN, 11LC010-I/SN offers identical functionality at higher voltage, while AT24C01C-SSHM-T trades single-pin simplicity for broader ecosystem support and faster clock rates-but demands additional MCU resources and board routing.
Availability
11AA010-I/SN is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and smart energy metering requiring stable component supply across extended product lifecycles.
Supply support for 11AA010-I/SN 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 11AA010-I/SN belongs to Microchip's UNI/O® serial EEPROM family, designed specifically for ultra-low-pin-count, low-power, and space-constrained embedded systems where minimizing I/O usage and supply voltage is critical.
FAQ
What is the minimum supply voltage required for reliable operation of the 11AA010-I/SN?
The 11AA010-I/SN operates reliably down to 1.8V across its full industrial temperature range (−40°C to +85°C), making it compatible with modern ultra-low-power microcontrollers and energy-harvesting systems. Below 1.8V, read/write functionality is not guaranteed per DS22067J-page 3 DC characteristics.
How does the UNI/O® interface of the 11AA010-I/SN differ from standard I²C or SPI protocols?
The 11AA010-I/SN uses Manchester encoding on a single SCIO line to embed clock and data, eliminating dedicated clock lines required by I²C and SPI. This reduces MCU pin count to one GPIO and avoids timing skew issues, though it limits maximum bit rate to 100 kbps versus I²C's 1 MHz or SPI's multi-MHz speeds.
Can the 11AA010-I/SN be used in automotive applications?
The 11AA010-I/SN is rated for industrial temperature only (−40°C to +85°C) and is not qualified for automotive AEC-Q100 stress testing. For automotive body control modules, Microchip offers the 11LC010-E/SN variant with −40°C to +125°C rating and same UNI/O® interface.
What is the purpose of the STATUS register in the 11AA010-I/SN, and how is it accessed?
The STATUS register in the 11AA010-I/SN contains WIP (Write-In-Progress), WEL (Write-Enable Latch), and BP0/BP1 (Block Protection) bits. It is read using the RDSR instruction (0x05) and allows real-time monitoring without blocking firmware execution-critical for optimizing write latency in time-sensitive applications.
Does the 11AA010-I/SN support hardware write protection independent of software commands?
No-the 11AA010-I/SN relies solely on software-configurable block protection (via WRSR) and the write-enable latch (set/cleared by WREN/WRDI). It has no hardware write-protect pin (e.g., WP#) or OTP fuses; protection is enforced entirely through register state and protocol compliance.
11AA010-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
11AA010-I/SN FAQ
1.How can I place an order for 11AA010-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 11AA010-I/SN 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 11AA010-I/SN reliable?
The price and inventory of 11AA010-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11AA010-I/SN is usually 5 days.
3.What payment methods are accepted for 11AA010-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11AA010-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11AA010-I/SN?
11AA010-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11AA010-I/SN 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 11AA010-I/SN?
For technical support, including 11AA010-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11AA010-I/SN requirements.
6.How does Aetrix verify that 11AA010-I/SN is sourced from the original manufacturer or authorized distributors?
All 11AA010-I/SN 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 11AA010-I/SN meets industry standards.
7.What is the process for return or replacement of 11AA010-I/SN?
All 11AA010-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 11AA010-I/SN, 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 11AA010-I/SN part is unused and in its original packaging.
Return procedure for 11AA010-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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