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Microchip Technology 11AA080T-I/TT
- Part No.:
- 11AA080T-I/TT
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
11AA080T-I/TT.pdf
- Description:
- IC EEPROM 8KBIT SGL WIRE SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,469
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Product details
Overview
11AA080T-I/TT from Microchip Technology is an 8 Kbit (1,024 × 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. It delivers reliable nonvolatile storage for space-constrained embedded systems requiring low-power, noise-immune communication.
For engineers reviewing the 11AA080T-I/TT datasheet, 11AA080T-I/TT pinout, 11AA080T-I/TT application, or 11AA080T-I/TT equivalent, key selection considerations include its 1.8V minimum supply, UNI/O® Manchester-encoded timing tolerance (±0.5% per byte frequency drift), 1,000,000 erase/write endurance, and SOT-23-3 package compatibility with minimal board footprint.
Technical Context
The 11AA080T-I/TT implements a Manchester-encoded UNI/O® bus protocol over a single SCIO line, extracting clock and data from one signal using internal re-synchronization circuitry that tracks MAK bit edges to compensate for ±0.5% per-byte frequency drift and ±0.06 UI edge jitter. Its slave-only operation requires master-initiated start headers and acknowledge sequences.
Internally, it integrates a 16-byte page latch, STATUS register with WIP/WEL/BP bits, high-voltage generator for EEPROM programming, and slope-controlled SCIO driver limiting output current to ±3 mA at 2.5V. Write cycles are self-timed (max 10 ms), with built-in power-on/off write protection and block-level write protection (none/¼/½/all array).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 8 Kbit (1,024 × 8 organization) - fixed memory map enabling deterministic addressing without bank switching |
| VCC Range | 1.8V to 5.5V - supports direct interface with 1.8V logic and legacy 3.3V/5V systems without level shifters |
| Interface | Single I/O UNI/O® bus - reduces PCB routing to one signal plus VCC/VSS, eliminating dedicated clock/SCL lines |
| Page Size | 16 bytes - enables efficient burst writes within physical page boundaries; crossing boundaries wraps address to page start |
| Endurance | 1,000,000 erase/write cycles - ensures long-term reliability in firmware update or calibration data logging applications |
| 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 time-critical configuration reads |
Pinout & Package
11AA080T-I/TT is packaged in 3-lead SOT-23 (TT suffix), with pin 1 = SCIO (Serial Clock/Data I/O), pin 2 = VSS (Ground), pin 3 = VCC (Supply Voltage). No NC pins - full functional utilization of all three terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCIO | Bi-directional serial I/O | Manchester-encoded signal carrying clock + data; includes Schmitt trigger input and slope-controlled output to suppress ground bounce |
| VSS | Ground reference | Return path for all internal circuitry and SCIO driver; must be low-impedance to maintain noise immunity |
| VCC | Power supply | Supplies core logic, EEPROM array, and SCIO driver; decoupling capacitor required near pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| UNI/O® Single I/O Bus | Reduces interconnect to one signal - eliminates clock/data skew issues and saves PCB real estate vs. I²C/SPI |
| 16-Byte Page Write Buffer | Enables up to 16 sequential byte writes per command - cuts firmware overhead and improves write efficiency vs. byte-by-byte |
| Status Register Access | Allows real-time polling of WIP (Write-In-Progress) and WEL (Write Enable Latch) bits - avoids fixed delay waits during writes |
| Block Write Protection | Configurable via BP0/BP1 bits to protect 0%, 25%, 50%, or 100% of memory - prevents accidental overwrite of critical calibration or boot code |
| Schmitt Trigger Input | Provides 50 mV hysteresis on SCIO - rejects noise spikes up to 50 ns duration and ensures robust signal recovery in EMI-prone environments |
| Self-Timed Write Cycle | Internal timing eliminates need for external wait states - simplifies host firmware and guarantees completion within 10 ms max |
Applications
| Smart Sensor Calibration Storage | Industrial PLC Configuration Memory |
|---|---|
|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation tables in MEMS pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed at power-up; UNI/O® interface allows sharing of single MCU GPIO across multiple sensors. Use Value: 1.8V operation enables direct connection to low-power sensor ASICs; 1 µA standby current extends battery life in wireless transmitters. |
Use Scenario: Holding user-defined I/O mapping, PID tuning parameters, and alarm thresholds in compact programmable logic controllers. IC Role / Device Role / Timing Role: Configuration EEPROM interfaced to ARM Cortex-M host via bit-banged UNI/O®; accessed during boot and runtime updates. Use Value: Block write protection prevents corruption of safety-critical settings during firmware upgrades; 1M endurance supports decades of field reconfiguration. |
| Medical Wearable Device Settings | Automotive Body Control Module NVM |
|
Use Scenario: Retaining patient-specific therapy profiles, display brightness preferences, and usage logs in portable insulin pumps. IC Role / Device Role / Timing Role: Low-power serial NVM storing user-configurable data; accessed infrequently but requiring guaranteed retention over 10+ years. Use Value: >200-year data retention meets medical device regulatory requirements; SOT-23-3 footprint fits tight space constraints on wearable PCBs. |
Use Scenario: Storing door lock actuator calibration, seat position presets, and lighting dimming curves in automotive BCMs. IC Role / Device Role / Timing Role: Industrial-temperature EEPROM (–40°C to +85°C) providing robust NVM for body electronics subsystems. Use Value: Built-in power-on write protection prevents data loss during vehicle battery transients; ESD rating >4 kV withstands assembly and service handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 11LC080T-I/TT | Same 8 Kbit density and SOT-23-3 package, but 2.5V–5.5V VCC range - lacks 1.8V support | Requires ≥2.5V system supply; unsuitable for 1.8V logic domains or mixed-voltage designs | Select when higher VCC margin is acceptable and 1.8V operation is unnecessary |
| AT24C08D-SSHM-T | I²C interface (2-wire), 8 Kbit, SOIC-8 package, 1.7V–5.5V VCC - different protocol and larger footprint | Needs two dedicated I/O lines (SCL/SDA); incompatible with UNI/O®-only hosts without protocol translation | Choose only if existing design uses I²C infrastructure and board space permits SOIC-8 |
Compared with 11AA080T-I/TT, the 11LC080T-I/TT trades 1.8V compatibility for identical pinout and timing, while the AT24C08D-SSHM-T offers broader voltage support but demands additional PCB routing and firmware changes due to I²C protocol divergence.
Availability
11AA080T-I/TT is available at Aetrix Electronics and suitable for smart sensor calibration storage, industrial PLC configuration memory, medical wearable device settings, and automotive body control module NVM requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 11AA080T-I/TT 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 11AA080T-I/TT belongs to Microchip's 11AAxxx UNI/O® EEPROM family, designed specifically for ultra-low-pin-count, low-power embedded systems where minimizing I/O usage and board area is critical.
FAQ
What is the minimum operating voltage for the 11AA080T-I/TT?
The 11AA080T-I/TT operates down to 1.8V, enabling direct integration with 1.8V logic families and low-power microcontrollers without level-shifting circuitry. This specification is validated across the industrial temperature range (–40°C to +85°C) and is distinct from the 2.5V minimum of the pin-compatible 11LC080T-I/TT variant.
How does the UNI/O® interface of the 11AA080T-I/TT differ from standard I²C or SPI?
The 11AA080T-I/TT uses a single-wire Manchester-encoded UNI/O® bus, combining clock and data into one SCIO signal - unlike I²C (two wires) or SPI (three or four wires). This eliminates clock skew concerns and reduces GPIO count, but requires host-side Manchester encoding/decoding and strict timing compliance per DS22067J.
Can the 11AA080T-I/TT be used in automotive applications?
The 11AA080T-I/TT is rated for industrial temperature (–40°C to +85°C) only and is not qualified for automotive AEC-Q100 stress testing. For automotive body electronics, Microchip offers the 11LC080E variant (–40°C to +125°C) with identical functionality but higher temperature grade and different device address (0xA0 vs. 0xA0 for 11AA080T-I/TT).
What is the purpose of the STATUS register in the 11AA080T-I/TT?
The STATUS register in the 11AA080T-I/TT provides real-time visibility into device state: WIP (Write-In-Progress) indicates active internal write cycles, WEL (Write Enable Latch) shows whether writes are permitted, and BP0/BP1 bits reflect configured block protection. It can be read at any time - even during writes - enabling efficient polling instead of fixed delays.
Does the 11AA080T-I/TT support write protection of specific memory regions?
Yes, the 11AA080T-I/TT supports hardware-based block write protection via BP0/BP1 bits in its STATUS register. These nonvolatile bits allow locking 0%, 25%, 50%, or 100% of the 1,024-byte array - protecting critical calibration data or boot parameters from accidental overwrite during firmware updates or field service.
11AA080T-I/TT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K 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:
- SOT-23-3
11AA080T-I/TT FAQ
1.How can I place an order for 11AA080T-I/TT through Aetrix?
Please submit a Request for Quotation (RFQ) for 11AA080T-I/TT 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 11AA080T-I/TT reliable?
The price and inventory of 11AA080T-I/TT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 11AA080T-I/TT is usually 5 days.
3.What payment methods are accepted for 11AA080T-I/TT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 11AA080T-I/TT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 11AA080T-I/TT?
11AA080T-I/TT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 11AA080T-I/TT 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 11AA080T-I/TT?
For technical support, including 11AA080T-I/TT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 11AA080T-I/TT requirements.
6.How does Aetrix verify that 11AA080T-I/TT is sourced from the original manufacturer or authorized distributors?
All 11AA080T-I/TT 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 11AA080T-I/TT meets industry standards.
7.What is the process for return or replacement of 11AA080T-I/TT?
All 11AA080T-I/TT units undergo pre-shipment inspection (PSI). If there is an issue with 11AA080T-I/TT, 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 11AA080T-I/TT part is unused and in its original packaging.
Return procedure for 11AA080T-I/TT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
11AA080T-I/TT Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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