Microchip Technology AT25010A-10TI-2.7
- Part No.:
- AT25010A-10TI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25010A-10TI-2.7.pdf
- Description:
- IC EEPROM 1KBIT SPI 20MHZ 8TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,184
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Product details
Overview
AT25010A-10TI-2.7 from Microchip Technology (formerly Atmel) is a 1-Kbit SPI serial EEPROM organized as 128 words × 8 bits, operating from 2.7V to 5.5V with 20 MHz clock rate at 5V, 8-byte page write capability, and hardware/software write protection. It serves as nonvolatile configuration storage in microcontroller-based industrial control modules requiring low-voltage operation and automotive-grade reliability.
For engineers reviewing the AT25010A-10TI-2.7 datasheet, AT25010A-10TI-2.7 pinout, AT25010A-10TI-2.7 application, or AT25010A-10TI-2.7 equivalent, key selection criteria include its TSSOP-8 package, −40°C to +85°C industrial temperature range, 1 million write cycles endurance, 100-year data retention, and support for SPI Modes 0 and 3 with HOLD and WP pins for robust system-level data integrity.
Technical Context
The AT25010A-10TI-2.7 implements a synchronous serial peripheral interface (SPI) slave architecture with separate SI/SO lines, MSB-first data transfer, and op-code–driven command set including WREN, WRITE, RDSR, and WRSR. Its internal status register controls block write protection (BP1/BP0) and ready/busy (RDY) flag.
It features self-timed internal write cycles (≤5 ms), no pre-erase requirement, and dual-layer data protection via both hardware (WP pin) and software (WREN/WRDI instructions). The HOLD pin suspends ongoing serial communication without resetting the sequence, enabling multi-master arbitration support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for small firmware parameters or calibration data storage |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifting |
| Max Clock Frequency | 20 MHz at VCC = 5 V - enables fast configuration reads during boot-up sequences |
| Write Endurance | 1,000,000 cycles - suitable for frequent logging or runtime parameter updates in industrial sensors |
| Data Retention | 100 years at 25°C - ensures long-term reliability in unattended embedded systems |
| Operating Temperature | −40°C to +85°C - qualified for industrial control cabinets and automotive under-hood environments |
| Page Write Size | 8 bytes - minimizes write latency while avoiding excessive overwrites in sequential updates |
Pinout & Package
AT25010A-10TI-2.7 is supplied in an 8-lead Thin Shrink Small Outline Package (TSSOP), 0.170" wide body, JEDEC MO-153 compliant, with 0.65 mm pitch and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; initiates SPI command sequence on falling edge |
| SCK | Serial Clock | Input-only synchronous timing reference; device operates only as SPI slave |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; MSB-first, sampled on SCK rising edge (Mode 0) |
| SO | Serial Data Output | Drives read data and status register contents; high-impedance when CS high or HOLD active |
| GND | Ground Reference | Return path for all digital and power currents; requires low-impedance PCB connection |
| VCC | Power Supply | Single 2.7–5.5 V supply; decoupling capacitor (0.1 µF) required near pin |
| WP | Write Protect | Hardware lock: drives low to inhibit all write operations regardless of WREN state |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting address counter; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode Compatibility | Supports Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1) - interoperable with diverse MCU SPI peripherals |
| Block Write Protection | Four configurable protection levels (none, 1/4, 1/2, full array) via nonvolatile BP1/BP0 bits - prevents accidental corruption of critical sectors |
| Self-timed Write Cycle | No external timing control needed; internal logic completes erase-and-program in ≤5 ms - simplifies host firmware design |
| Dual Write Enable | Combines hardware (WP pin) and software (WREN instruction) activation - enforces layered security for safety-critical writes |
| HOLD Functionality | Halts serial communication mid-sequence without losing context - enables priority interrupt handling in real-time systems |
Applications
| Industrial Sensor Calibration | Automotive ECU Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation tables in pressure or current-sense modules. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-on initialization via SPI from host MCU. Use Value: Enables field-replaceable sensor modules with unique calibration data retained across 100+ years without battery backup. | Use Scenario: Holding vehicle-specific tuning maps, VIN-linked settings, and diagnostic fault codes in engine control units. IC Role / Device Role / Timing Role: SPI EEPROM providing secure, write-protected storage for mission-critical ECU parameters. Use Value: Meets AEC-Q100 Grade 2 requirements with −40°C to +85°C operation and 1M write cycles for reprogramming during service. |
| Smart Meter Firmware Settings | Medical Device Parameter Storage |
Use Scenario: Retaining tariff schedules, pulse constants, and communication protocol configurations in utility meters deployed for >15 years. IC Role / Device Role / Timing Role: Low-power serial EEPROM interfaced to metering SoC during wake-up cycles. Use Value: 2.7 V minimum supply allows operation during brown-out conditions; 100-year retention eliminates recalibration during product lifetime. | Use Scenario: Saving user-adjusted therapy parameters, usage logs, and calibration history in portable infusion pumps and glucose monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant nonvolatile memory with hardware WP pin enabled during normal operation. Use Value: Block write protection prevents overwrite of FDA-mandated audit trails; 1M endurance supports daily clinical use over 10+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 Kbit capacity, 5 MHz max clock at 2.5–5.5 V, SO8 package, no HOLD pin | Larger memory for complex configuration sets; lacks HOLD for multi-master suspend | Select when >1 Kbit storage is required and HOLD functionality is unnecessary |
| CAT25010VI-GT3 | 1 Kbit, 10 MHz max clock at 1.8–5.5 V, TSSOP-8, identical pinout and command set | Broader voltage range (1.8 V) but lower speed; same footprint and software compatibility | Choose for ultra-low-power 1.8 V systems where 20 MHz is not required |
Compared with M95128-WMN6TP and CAT25010VI-GT3, the AT25010A-10TI-2.7 delivers optimal balance of speed (20 MHz), industrial temperature rating, and HOLD/WP dual-protection - making it preferred for time-sensitive, safety-aware designs where pin compatibility and deterministic suspend behavior are critical.
Availability
AT25010A-10TI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive ECU configuration, and smart meter firmware settings requiring stable component supply across extended product lifecycles.
Supply support for AT25010A-10TI-2.7 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 is a global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with broad industrial and automotive qualification expertise.
The AT25010A-10TI-2.7 belongs to Microchip's legacy Atmel SPI EEPROM family, designed specifically for reliable, low-voltage nonvolatile storage in space-constrained embedded systems requiring guaranteed data integrity.
FAQ
What is the maximum clock frequency supported by the AT25010A-10TI-2.7?
The AT25010A-10TI-2.7 supports up to 20 MHz SCK frequency when operated at VCC = 5.0 V. At 2.7 V, the maximum rated clock frequency is 10 MHz per AC characteristics table. This allows high-speed configuration reads in host MCU boot sequences while maintaining timing margin at lower voltages.
Does the AT25010A-10TI-2.7 require an external erase cycle before writing?
No, the AT25010A-10TI-2.7 does not require a separate erase cycle. All programming operations are self-timed and internally manage erase-and-write sequencing. A Write Enable (WREN) instruction must precede each WRITE command, and the WP pin must be high during write attempts. The AT25010A-10TI-2.7 automatically returns to write-disable state after completion.
How is write protection implemented on the AT25010A-10TI-2.7?
The AT25010A-10TI-2.7 implements dual-layer write protection: hardware via the WP pin (low = all writes inhibited), and software via status register bits BP1/BP0 that configure 1/4, 1/2, or full-array block protection. Both mechanisms operate independently - WP overrides software settings, and WRSR can only modify BP bits when WP is high and WREN has been issued.
What package type is used for the AT25010A-10TI-2.7?
The AT25010A-10TI-2.7 uses an 8-lead Thin Shrink Small Outline Package (TSSOP), designated as 8A2 per Microchip's ordering guide. It measures 3.00 mm × 4.40 mm with 0.65 mm lead pitch and complies with JEDEC MO-153, Variation AA. This compact surface-mount package supports high-density PCB layouts in industrial and automotive modules.
Can the AT25010A-10TI-2.7 interface with a 1.8 V microcontroller?
No - the AT25010A-10TI-2.7 is a 2.7 V–5.5 V device (indicated by "-2.7" suffix). For 1.8 V operation, Microchip offers the AT25010A-10TI-1.8 variant. Interfacing the AT25010A-10TI-2.7 with a 1.8 V MCU requires level translation on all SPI signals (CS, SCK, SI, SO, WP, HOLD) to avoid violating absolute maximum input voltage ratings.
AT25010A-10TI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT25010A-10TI-2.7 FAQ
1.How can I place an order for AT25010A-10TI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010A-10TI-2.7 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 AT25010A-10TI-2.7 reliable?
The price and inventory of AT25010A-10TI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25010A-10TI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25010A-10TI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010A-10TI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010A-10TI-2.7?
AT25010A-10TI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010A-10TI-2.7 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 AT25010A-10TI-2.7?
For technical support, including AT25010A-10TI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010A-10TI-2.7 requirements.
6.How does Aetrix verify that AT25010A-10TI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25010A-10TI-2.7 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 AT25010A-10TI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25010A-10TI-2.7?
All AT25010A-10TI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25010A-10TI-2.7, 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 AT25010A-10TI-2.7 part is unused and in its original packaging.
Return procedure for AT25010A-10TI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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