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Microchip Technology AT25010A-10PI-2.7
- Part No.:
- AT25010A-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25010A-10PI-2.7.pdf
- Description:
- IC EEPROM 1KBIT SPI 20MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,640
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Product details
Overview
AT25010A-10PI-2.7 from Atmel (now Microchip) is a 1-Kbit SPI serial EEPROM organized as 128 words × 8 bits, operating at 2.7–5.5 V with 20 MHz max clock rate at 5 V. It features hardware write protection via WP pin, HOLD for communication suspension, and 8-byte page write capability. It is used in industrial control systems for parameter storage and calibration data retention.
For engineers reviewing the AT25010A-10PI-2.7 datasheet, AT25010A-10PI-2.7 pinout, AT25010A-10PI-2.7 application, or AT25010A-10PI-2.7 equivalent, key selection considerations include low-voltage operation down to 2.7 V, block write protection granularity (1/4, 1/2, or full array), self-timed 5 ms write cycle, and compatibility with SPI Mode 0 and Mode 3 interfaces.
Technical Context
The AT25010A-10PI-2.7 implements a synchronous serial peripheral interface (SPI) slave device with separate SI and SO pins, supporting MSB-first transmission and op-code–driven command execution. Its status register (8-bit) controls write enable (WEN), ready/busy (RDY), and nonvolatile block protection bits (BP1/BP0).
It uses an internal address counter that auto-increments during sequential reads and supports 8-byte page writes with wraparound. Communication is gated by CS, suspended via HOLD (low while SCK is low), and protected against unintended writes using both hardware (WP pin) and software (WREN/WRDI) mechanisms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8), sufficient for small configuration tables or device ID storage |
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct integration into 3.3 V and 5 V microcontroller systems without level shifting |
| Max Clock Frequency | 20 MHz at VCC = 5 V - supports high-speed firmware updates and logging in real-time embedded applications |
| Write Cycle Time | 5 ms maximum - deterministic timing allows precise scheduling of non-blocking background writes |
| Endurance | 1 million write cycles - suitable for frequent recalibration or event-logging use cases over product lifetime |
| Data Retention | 100 years at 25°C - ensures long-term reliability of stored calibration coefficients or security keys |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including factory automation and metering |
Pinout & Package
AT25010A-10PI-2.7 is supplied in an 8-lead PDIP (0.300" wide) package per JEDEC MS-001, Variation BA. Pin 1 is marked by a notch or dot; leads are gull-wing shaped with standard through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal - must be low to accept commands; high impedance on SO when CS is high |
| SCK | Serial Clock | Input-only clock - synchronizes all SI/SO data transfers; device operates only as SPI slave |
| SI | Serial Data Input | Command/address/data input - accepts op-codes, addresses, and write data MSB-first |
| SO | Serial Data Output | Data output during READ/RDSR - tri-stated when CS is high or HOLD is active |
| GND | Ground Reference | Return path for VCC and all I/O signals - requires low-impedance connection to system ground plane |
| VCC | Power Supply | 2.7–5.5 V supply - powers internal logic and memory array; decoupling capacitor required near pin |
| WP | Write Protect | Hardware lock - low disables all write operations including WREN, preventing accidental corruption |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence - useful during interrupt service routines |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 and Mode 3 support | Enables interoperability with diverse MCUs including 68HC11, PIC, and ARM-based controllers without protocol translation |
| 8-byte page write mode | Reduces write overhead versus byte-by-byte programming - improves efficiency in burst data logging applications |
| Four-level block write protection | Allows selective locking of 0%, 25%, 50%, or 100% of memory via BP1/BP0 bits - secures critical firmware parameters |
| Self-timed internal write cycle | Eliminates need for external timing control or erase-before-write sequences - simplifies host firmware design |
| HOLD and WP dual-protection scheme | Provides layered data integrity - HOLD prevents bus contention; WP blocks physical write attempts even during power-up |
Applications
| Industrial Sensor Calibration | Smart Meter Configuration Storage |
|---|---|
Use Scenario: Storing temperature-compensated offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter register accessed during boot and runtime recalibration; SPI interface synchronized to MCU clock. Use Value: Enables field-upgradable calibration without firmware reflash; 100-year data retention ensures accuracy across equipment lifecycle. |
Use Scenario: Holding tariff tables, billing counters, and communication settings in electricity/water meters deployed in unattended locations. IC Role / Device Role / Timing Role: Secure configuration store with hardware write lock (WP) to prevent tampering; accessed via SPI during initialization and periodic updates. Use Value: Block protection prevents overwrite of billing registers; 1M endurance supports daily meter reading and firmware patching. |
| Medical Device Settings Backup | Automotive Body Control Module |
Use Scenario: Retaining user preferences (e.g., display brightness, alarm thresholds) and safety-critical defaults in portable diagnostic tools. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced to ARM Cortex-M0+ MCU; powered from 3.3 V rail with standby current <1 µA at 2.7 V. Use Value: −40°C to +85°C rating ensures operation in clinical environments; WP pin prevents accidental reset of FDA-mandated defaults. |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in automotive interior control units. IC Role / Device Role / Timing Role: SPI-configurable nonvolatile memory accessed during ignition-on sequence; HOLD pin suspends writes during CAN bus interrupts. Use Value: 8-byte page writes reduce update latency for multi-parameter recall; automotive-grade qualification meets AEC-Q100 stress requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95010-WMN6TP | 1-Kbit SPI EEPROM, 2.5–5.5 V supply, 10 MHz max clock at 2.5 V, SOIC-8 package | Lacks HOLD pin and block protection granularity; supports only full-array write protection | Choose for cost-sensitive designs where suspend functionality and fine-grained protection are not required |
| 25AA010A-I/P | 1-Kbit SPI EEPROM, 1.8–5.5 V, 10 MHz max clock, PDIP-8 package, includes ESD-hardened I/O | Supports lower 1.8 V operation but lacks HOLD pin; same WP and status register functionality | Prefer when operating below 2.7 V or requiring enhanced ESD robustness in noisy industrial environments |
Compared with M95010-WMN6TP and 25AA010A-I/P, the AT25010A-10PI-2.7 offers unique HOLD functionality for interrupt-safe SPI transactions and four-tier block protection - critical for systems requiring concurrent real-time processing and secure parameter updates.
Availability
AT25010A-10PI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, smart meter configuration storage, and medical device settings backup requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT25010A-10PI-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
Atmel Corporation, now part of Microchip Technology, designs high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and consumer applications.
The AT25010A-10PI-2.7 belongs to Atmel's SPI serial EEPROM product line, engineered for low-power, low-voltage embedded systems requiring robust data retention and flexible interface compatibility.
FAQ
What is the maximum clock frequency supported by AT25010A-10PI-2.7?
The AT25010A-10PI-2.7 supports up to 20 MHz SCK frequency when operated at 5 V. At 2.7 V, the maximum clock rate is 10 MHz per AC characteristics in Table 4. This ensures reliable timing margins across its full voltage range without requiring dynamic clock scaling in host firmware.
Does AT25010A-10PI-2.7 require an external erase cycle before writing?
No, the AT25010A-10PI-2.7 does not require a separate erase cycle. All write operations - including byte and page writes - are self-timed and automatically erase and program the target location internally. The 5 ms maximum write cycle time includes both erase and program phases.
How does the HOLD pin function during an active SPI transaction?
When HOLD is pulled low while SCK is low, the AT25010A-10PI-2.7 suspends serial communication without resetting the internal state. SI inputs are ignored, and SO enters high-impedance. To resume, bring HOLD high while SCK remains low - the transaction continues from the exact bit position where it paused.
Can AT25010A-10PI-2.7 be used with SPI Mode 3 (CPOL=1, CPHA=1)?
Yes, the AT25010A-10PI-2.7 explicitly supports SPI Modes 0 and 3 as stated in its Features section. In Mode 3, sampling occurs on the falling edge of SCK and setup on the rising edge - verified in functional timing diagrams and compatible with MCUs like STM32 and NXP Kinetis families.
What happens if the WP pin is driven low during a write operation?
If WP is pulled low while CS is active and a write instruction is in progress, the AT25010A-10PI-2.7 immediately halts the write sequence. No data is committed to memory, and the device returns to standby. If the internal write cycle has already started (e.g., after CS high), WP going low has no effect - the write completes normally.
AT25010A-10PI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25010A-10PI-2.7 FAQ
1.How can I place an order for AT25010A-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010A-10PI-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-10PI-2.7 reliable?
The price and inventory of AT25010A-10PI-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-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25010A-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010A-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010A-10PI-2.7?
AT25010A-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010A-10PI-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-10PI-2.7?
For technical support, including AT25010A-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010A-10PI-2.7 requirements.
6.How does Aetrix verify that AT25010A-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25010A-10PI-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-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25010A-10PI-2.7?
All AT25010A-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25010A-10PI-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-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT25010A-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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