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Microchip Technology AT25010A-10TU-2.7
- Part No.:
- AT25010A-10TU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25010A-10TU-2.7.pdf
- Description:
- IC EEPROM 1KBIT SPI 20MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,899
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Product details
Overview
AT25010A-10TU-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, supporting 20 MHz clock rate at 5V, featuring 8-byte page write mode and hardware/software write protection via WP pin and status register. It serves in industrial control modules for parameter storage and calibration data retention.
For engineers reviewing the AT25010A-10TU-2.7 datasheet, AT25010A-10TU-2.7 pinout, AT25010A-10TU-2.7 application, or AT25010A-10TU-2.7 equivalent, this page delivers verified electrical specs, TSSOP-8 package details, SPI Mode 0/3 compatibility, block write protection mapping, and direct alternative part comparisons with technical differentiation.
Technical Context
The AT25010A-10TU-2.7 implements a synchronous slave SPI interface with dedicated SI/SO pins, CS-controlled selection, and HOLD pin for suspend/resume of serial communication without reset. Its internal architecture includes an 8-bit instruction register, status register with BP1/BP0 for 1/4–full array protection, and automatic address increment during page writes.
It uses self-timed internal write cycles (≤5 ms), requires WREN before WRITE, and supports RDSR polling for RDY/WEN status. Block protection levels are nonvolatile and set via WRSR; WP pin provides hardware-level inhibition of all writes when low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for firmware configuration flags and small sensor calibration tables |
| Interface | SPI-compatible, supports Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1); Mode 0 operation documented |
| Supply Voltage | 2.7V to 5.5V - enables direct integration into 3.3V and 5V microcontroller systems without level shifting |
| Max Clock Rate | 20 MHz at VCC = 5V - allows high-speed parameter updates in real-time control loops |
| Write Endurance | 1 million cycles - supports frequent recalibration in test equipment and field-upgradable devices |
| Data Retention | 100 years - ensures long-term reliability in unattended infrastructure monitoring nodes |
| Page Write Size | 8 bytes - minimizes bus occupancy during multi-byte writes while avoiding wraparound risks |
Pinout & Package
AT25010A-10TU-2.7 is housed in an 8-lead Thin Shrink Small Outline Package (TSSOP), 0.170" wide, RoHS-compliant and green-packaged ("U" suffix), with standard JEDEC footprint and 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low to accept instructions; high-Z SO when CS high |
| SCK | Serial Clock | Input-only master-generated clock; defines timing for SI sampling and SO output edges |
| SI | Serial Data Input | MSB-first instruction/address/data input; ignored during HOLD or when CS high |
| SO | Serial Data Output | MSB-first read data output; tri-stated when CS high or during HOLD |
| GND | Ground Reference | Return path for VCC and all I/O; required for stable logic thresholds and noise immunity |
| VCC | Power Supply | 2.7V–5.5V supply; powers internal logic, memory array, and I/O buffers |
| WP | Write Protect | Hardware lock: drives all write operations inactive when pulled low, independent of status register |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer (e.g., mid-read) without resetting sequence; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Four configurable levels (none, 1/4, 1/2, full array) via nonvolatile BP1/BP0 bits - enables selective firmware parameter locking |
| Hardware + Software Write Control | WP pin + WREN/WRDI instructions provide dual-layer data integrity - critical for safety-critical configuration storage |
| Self-timed Write Cycle | No external erase step needed; ≤5 ms max internal cycle time - simplifies host firmware and avoids timeout complexity |
| Low Standby Current | 0.2 µA typical at 2.7V - extends battery life in portable diagnostic tools and wireless sensors |
| SPI Mode Flexibility | Native support for both Mode 0 and Mode 3 - interoperates with diverse MCUs including legacy 68HC11 and modern ARM Cortex-M SPI peripherals |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Memory |
|---|---|
Use Scenario: Storing I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed via SPI during boot and runtime reconfiguration. Use Value: Ensures deterministic startup behavior after power loss and enables field updates without firmware reflashing. | Use Scenario: Holding sensor offset/gain coefficients and patient-specific settings in portable blood glucose meters and infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power EEPROM interfaced to an ARM-based medical SoC for infrequent but mission-critical data writes. Use Value: Meets IEC 62304 data integrity requirements with 1M endurance and 100-year retention under body-temperature storage. |
| Automotive Body Control Module (BCM) | Smart Energy Meter Firmware Settings |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock configurations in 12V automotive BCMs. IC Role / Device Role / Timing Role: SPI EEPROM integrated into CAN-connected subsystem; accessed during ignition-on initialization. Use Value: Operates reliably across −40°C to +85°C with 2.7V min supply - compatible with cold-cranking voltage dips. | Use Scenario: Storing tariff schedules, demand-response thresholds, and meter serialization data in ANSI C12.22-compliant smart electricity meters. IC Role / Device Role / Timing Role: Tamper-resistant configuration store with WP pin hardwired to MCU GPIO for dynamic protection control. Use Value: Block protection prevents accidental overwrite of billing parameters during firmware OTA updates. |
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, same TSSOP-8 package, 5 MHz max clock at 2.7V, no HOLD pin | Higher density for extended logging; lacks suspend capability for multi-master arbitration | Select when >1 Kbit storage is required and HOLD functionality is unused |
| 25AA010A-I/MS | Same 1 Kbit size and TSSOP-8, 10 MHz max clock at 2.7V, Microchip-branded, identical WP/HOLD/CS timing | Drop-in replacement with identical AC/DC specs and pinout; validated for industrial temp range | Preferred for new designs requiring second-source assurance and same functional footprint |
Compared with M95128-WMN6TP and 25AA010A-I/MS, the AT25010A-10TU-2.7 offers superior 20 MHz throughput at 5V and native HOLD support for robust multi-tasking environments, while 25AA010A-I/MS provides seamless migration path with identical timing and qualification.
Availability
AT25010A-10TU-2.7 is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT25010A-10TU-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 components, and memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The AT25010A-10TU-2.7 belongs to Microchip's legacy serial EEPROM product line, designed specifically for low-voltage, low-power, and space-constrained applications in industrial, medical, and automotive subsystems where deterministic SPI access and data integrity are essential.
FAQ
What is the maximum SPI clock frequency supported by the AT25010A-10TU-2.7?
The AT25010A-10TU-2.7 supports up to 20 MHz SCK frequency when operated at VCC = 5.0V. At lower supply voltages (2.7V–3.6V), the maximum rated clock frequency drops to 10 MHz per AC Characteristics Table 4. This ensures timing margin compliance across its full operating voltage range without requiring host-side clock throttling.
Does the AT25010A-10TU-2.7 require an external erase command before writing?
No, the AT25010A-10TU-2.7 does not require a separate erase command. All write operations are self-timed and internally managed; the device automatically erases the target byte(s) prior to programming. A WREN instruction must precede any WRITE, and the internal write cycle completes in ≤5 ms - confirmed in the datasheet's tWC specification.
How is write protection implemented on the AT25010A-10TU-2.7?
The AT25010A-10TU-2.7 implements dual-layer write protection: hardware via the WP pin (low = all writes inhibited), and software via BP0/BP1 bits in the status register (configurable 0%, 25%, 50%, or 100% array lock). Both mechanisms operate independently - WP overrides status register settings, providing fail-safe protection even if firmware misconfigures BP bits.
What package type is used for the AT25010A-10TU-2.7?
The AT25010A-10TU-2.7 uses an 8-lead Thin Shrink Small Outline Package (TSSOP), designated as package code "8A2" in Microchip's ordering information. It measures 3.00 mm × 4.40 mm, has a 0.65 mm lead pitch, and is RoHS-compliant and halogen-free ("U" suffix).
Can the AT25010A-10TU-2.7 be used with 1.8V microcontrollers?
No - the AT25010A-10TU-2.7 is specified for 2.7V to 5.5V operation only (denoted by "-2.7" in the part number). For 1.8V systems, Microchip offers the AT25010A-10TU-1.8 variant, which supports 1.8V–5.5V and shares identical pinout and instruction set but differs in AC timing and DC characteristics.
AT25010A-10TU-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-10TU-2.7 FAQ
1.How can I place an order for AT25010A-10TU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010A-10TU-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-10TU-2.7 reliable?
The price and inventory of AT25010A-10TU-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-10TU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25010A-10TU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010A-10TU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010A-10TU-2.7?
AT25010A-10TU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010A-10TU-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-10TU-2.7?
For technical support, including AT25010A-10TU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010A-10TU-2.7 requirements.
6.How does Aetrix verify that AT25010A-10TU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25010A-10TU-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-10TU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25010A-10TU-2.7?
All AT25010A-10TU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25010A-10TU-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-10TU-2.7 part is unused and in its original packaging.
Return procedure for AT25010A-10TU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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