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Microchip Technology 11AA160T-I/MNY
- Part No.:
- 11AA160T-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
11AA160T-I/MNY.pdf
- Description:
- IC EEPROM 16KBIT SGL WIRE 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,048
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Product details
Overview
11AA160T-I/MNY from Microchip Technology Inc. is a 16 Kbit (2,048 × 8) serial EEPROM with single I/O UNI/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 nonvolatile parameter storage, calibration data retention, and firmware configuration.
For engineers reviewing the 11AA160T-I/MNY datasheet, 11AA160T-I/MNY pinout, 11AA160T-I/MNY application, or 11AA160T-I/MNY equivalent, key selection criteria include UNI/O® bus compatibility, 1.8V minimum VCC support, industrial temperature rating, SOT-23-3 package footprint, and block-level write protection configuration via STATUS register.
Technical Context
The 11AA160T-I/MNY implements Manchester-encoded UNI/O® protocol over a single bidirectional SCIO line, eliminating need for separate clock or chip-select signals. Its internal timing recovery circuitry tolerates ±0.50% bus frequency drift per byte and ±0.06 UI edge jitter, enabling robust communication with low-cost microcontroller GPIOs.
It integrates a 16-byte page write buffer, STATUS register with WIP/WEL/BP bits, and hardware write protection logic that enforces 0%, 25%, 50%, or 100% array lock. The device uses on-chip charge pump for EEPROM programming and includes slope-controlled output to suppress ground bounce.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 16 Kbit (2,048 × 8 organization) |
| VCC Range | 1.8V to 5.5V - supports direct interface with 1.8V/3.3V/5V logic domains without level shifters |
| Interface | Single I/O UNI/O® bus - requires only one GPIO pin, no external clock or CS signal |
| Page Size | 16 bytes - enables efficient burst writes within physical page boundaries (0x00–0x0F, 0x10–0x1F, etc.) |
| Write Endurance | 1,000,000 cycles - ensures long-term reliability in frequent update applications like sensor calibration logs |
| Data Retention | >200 years - guarantees nonvolatile storage integrity across product lifecycle without refresh |
| Standby Current | 1 µA max (I-temp) - minimizes quiescent power in battery-backed or energy-harvesting systems |
| Max Bit Rate | 100 kbps (equivalent to 100 kHz clock) - defines maximum sustained throughput for configuration reads/writes |
Pinout & Package
11AA160T-I/MNY is housed in a 3-lead SOT-23 package (MNY suffix), with pin 1 = SCIO, pin 2 = VSS, pin 3 = VCC. No NC pins are present in this variant; all three terminals are functional and electrically defined.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Serial Clock/Data I/O | Bidirectional Manchester-encoded bus line - carries clock and data simultaneously; requires Schmitt-trigger input and slew-rate-limited output |
| VSS | Ground Reference | Return path for all internal circuits and SCIO driver; must be low-impedance to maintain noise immunity |
| VCC | Supply Voltage | Power rail for EEPROM core, logic, and charge pump; supports 1.8V–5.5V operation with full spec compliance |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Serial Interface | Single-pin bus reduces PCB routing complexity and eliminates need for dedicated clock or chip-select lines |
| Schmitt Trigger Input | 0.05×VCC hysteresis on SCIO improves noise immunity in electrically noisy industrial environments |
| Output Slope Control | Controlled rise/fall times prevent ground bounce during high-speed bit transitions on shared VSS traces |
| Status Register Access | Real-time monitoring of Write-In-Progress (WIP) and Write Enable Latch (WEL) enables safe polling-based write completion detection |
| Block Write Protection | BP0/BP1 bits allow software-selectable lock of 0%, 25%, 50%, or 100% of memory array - prevents accidental overwrite of critical firmware parameters |
| Auto-Erase & Self-Timed Write | No external timing control required; internal logic handles erase-before-write and verifies completion before releasing SCIO |
Applications
| Smart Sensor Calibration Storage | Industrial PLC Configuration Memory |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients and temperature compensation tables for MEMS pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up initialization and runtime correction routines. Use Value: Enables field-replaceable sensor modules with unique calibration data retained across power cycles and firmware updates. |
Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and recipe parameters in compact programmable logic controllers. IC Role / Device Role / Timing Role: Configuration EEPROM interfaced directly to PLC's main MCU GPIO without additional bus hardware. Use Value: Reduces BOM count and board area by eliminating multi-pin SPI EEPROMs while maintaining industrial-grade reliability. |
| Medical Device Settings Backup | IoT Edge Node Identity Storage |
Use Scenario: Preserving user-adjusted therapy settings, audit logs, and safety-critical operational limits in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power memory element supporting tamper-resistant configuration storage with write-protection granularity. Use Value: Meets IEC 62304 requirements for persistent data integrity and supports battery-backed retention during mains failure. |
Use Scenario: Storing unique device identifiers (UID), TLS certificate fingerprints, and secure boot keys in battery-powered wireless sensor nodes. IC Role / Device Role / Timing Role: Trusted root-of-trust component providing authenticated identity data to host MCU during secure boot sequence. Use Value: Leverages 1 µA standby current and >200-year data retention to ensure identity persistence over multi-year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11LC160-I/MNY | Same density and pinout, but 2.5–5.5V VCC range - lacks 1.8V operation capability | Not suitable for 1.8V-only systems; requires level-shifting when interfacing with ultra-low-voltage MCUs | Select only if system VCC ≥2.5V and UNI/O® compatibility is confirmed |
| AT24C128C-SSHM-T | I²C interface (2-wire), 8-lead SOIC package, 1.7–5.5V, 128Kbit - higher density but different protocol and footprint | Requires two GPIOs (SCL/SDA), pull-up resistors, and I²C stack; incompatible with UNI/O®-only host firmware | Choose only when migrating to I²C infrastructure or needing >16Kbit capacity |
Compared with 11LC160-I/MNY and AT24C128C-SSHM-T, the 11AA160T-I/MNY uniquely delivers 1.8V operation, single-pin UNI/O® simplicity, and SOT-23-3 footprint - making it optimal for cost-sensitive, space-constrained 1.8V embedded designs where bus pin count is critical.
Availability
11AA160T-I/MNY is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion devices, smart sensor modules, and IoT edge nodes requiring stable component supply with guaranteed long-term availability.
Supply support for 11AA160T-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 11AA160T-I/MNY belongs to Microchip's 11XX family of UNI/O®-interface serial EEPROMs, designed specifically to reduce pin count and simplify integration in resource-constrained microcontroller systems.
FAQ
What is the UNI/O® interface used by the 11AA160T-I/MNY?
The 11AA160T-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, chip-select, or data lines - reducing GPIO usage and PCB routing complexity. The 11AA160T-I/MNY fully complies with UNI/O® specification v1.0, including start header synchronization, MAK/NoMAK handshaking, and re-synchronization circuitry.
Does the 11AA160T-I/MNY support 1.8V operation?
Yes, the 11AA160T-I/MNY supports full functionality across 1.8V to 5.5V VCC, including read/write operations, STATUS register access, and block protection. At 1.8V, it maintains 100 kbps max bit rate, 1 µA max standby current, and full AC timing compliance - unlike the 11LC160 which requires ≥2.5V. This makes the 11AA160T-I/MNY ideal for direct connection to 1.8V microcontrollers without level translation.
How is write protection configured on the 11AA160T-I/MNY?
Write protection on the 11AA160T-I/MNY is controlled via BP0 and BP1 bits in the nonvolatile STATUS register, set using the WRSR command. These bits enable four protection modes: no protection (00), top 1/4 (01), top 1/2 (10), or full array (11). Protection is enforced at the hardware level during WRITE commands - any attempt to write to locked blocks returns NoSAK and aborts the operation. The 11AA160T-I/MNY retains protection state across power cycles.
What package type does the 11AA160T-I/MNY use?
The 11AA160T-I/MNY uses a 3-lead SOT-23 package (MNY suffix), with pin 1 = SCIO, pin 2 = VSS, pin 3 = VCC. This compact surface-mount package measures 2.9 mm × 1.6 mm × 1.1 mm and is RoHS-compliant. It is distinct from 8-lead variants (e.g., PDIP, SOIC, MSOP) and excludes NC pins - all three terminals are active and electrically defined per the datasheet pin function table.
Can the 11AA160T-I/MNY be used in automotive applications?
No, the 11AA160T-I/MNY is rated for Industrial temperature range only (–40°C to +85°C). For automotive applications requiring –40°C to +125°C operation, Microchip offers the 11LC160-E/MNY or 11LC161-E/MNY variants - both share identical density and UNI/O® interface but differ in VCC range (2.5–5.5V) and temperature grade. The "T" in 11AA160T-I/MNY denotes tape-and-reel packaging, not temperature rating.
11AA160T-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:
- 16Kbit
- Memory Organization:
- 2K 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)
11AA160T-I/MNY FAQ
1.How can I place an order for 11AA160T-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 11AA160T-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 11AA160T-I/MNY reliable?
The price and inventory of 11AA160T-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 11AA160T-I/MNY is usually 5 days.
3.What payment methods are accepted for 11AA160T-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11AA160T-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11AA160T-I/MNY?
11AA160T-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11AA160T-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 11AA160T-I/MNY?
For technical support, including 11AA160T-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11AA160T-I/MNY requirements.
6.How does Aetrix verify that 11AA160T-I/MNY is sourced from the original manufacturer or authorized distributors?
All 11AA160T-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 11AA160T-I/MNY meets industry standards.
7.What is the process for return or replacement of 11AA160T-I/MNY?
All 11AA160T-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 11AA160T-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 11AA160T-I/MNY part is unused and in its original packaging.
Return procedure for 11AA160T-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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