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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:
AetrixAT25010A-10TI-2.7.pdf
Description:
IC EEPROM 1KBIT SPI 20MHZ 8TSSOP
Quantity:
Payment:
Payment
Shipping:
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

ParameterValue and Actual Design Meaning
Memory Size1024 bits (128 × 8), sufficient for small firmware parameters or calibration data storage
Supply Voltage Range2.7 V to 5.5 V - supports direct interfacing with 3.3 V and 5 V microcontrollers without level shifting
Max Clock Frequency20 MHz at VCC = 5 V - enables fast configuration reads during boot-up sequences
Write Endurance1,000,000 cycles - suitable for frequent logging or runtime parameter updates in industrial sensors
Data Retention100 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 Size8 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/TerminalCircuit RoleDesign Meaning
CSChip SelectActive-low enable signal; initiates SPI command sequence on falling edge
SCKSerial ClockInput-only synchronous timing reference; device operates only as SPI slave
SISerial Data InputReceives op-codes, addresses, and write data; MSB-first, sampled on SCK rising edge (Mode 0)
SOSerial Data OutputDrives read data and status register contents; high-impedance when CS high or HOLD active
GNDGround ReferenceReturn path for all digital and power currents; requires low-impedance PCB connection
VCCPower SupplySingle 2.7–5.5 V supply; decoupling capacitor (0.1 µF) required near pin
WPWrite ProtectHardware lock: drives low to inhibit all write operations regardless of WREN state
HOLDCommunication SuspendPauses ongoing SPI transfer without resetting address counter; requires SCK low to assert

Key Features

FeatureDesign Value
SPI Mode CompatibilitySupports Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1) - interoperable with diverse MCU SPI peripherals
Block Write ProtectionFour configurable protection levels (none, 1/4, 1/2, full array) via nonvolatile BP1/BP0 bits - prevents accidental corruption of critical sectors
Self-timed Write CycleNo external timing control needed; internal logic completes erase-and-program in ≤5 ms - simplifies host firmware design
Dual Write EnableCombines hardware (WP pin) and software (WREN instruction) activation - enforces layered security for safety-critical writes
HOLD FunctionalityHalts serial communication mid-sequence without losing context - enables priority interrupt handling in real-time systems

Applications

Industrial Sensor CalibrationAutomotive 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 SettingsMedical 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 PartTechnical DifferenceApplication DifferenceSelection Advice
M95128-WMN6TP128 Kbit capacity, 5 MHz max clock at 2.5–5.5 V, SO8 package, no HOLD pinLarger memory for complex configuration sets; lacks HOLD for multi-master suspendSelect when >1 Kbit storage is required and HOLD functionality is unnecessary
CAT25010VI-GT31 Kbit, 10 MHz max clock at 1.8–5.5 V, TSSOP-8, identical pinout and command setBroader voltage range (1.8 V) but lower speed; same footprint and software compatibilityChoose 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.

AT25010A-10TI-2.7 Tags

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