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Microchip Technology 25LC010AT-E/SN
- Part No.:
- 25LC010AT-E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
25LC010AT-E/SN.pdf
- Description:
- IC EEPROM 1KBIT SPI 10MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,300
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Product details
Overview
25LC010AT-E/SN from Microchip Technology Inc. is a 1 Kbit (128 × 8) SPI serial EEPROM with 2.5–5.5 V supply range, 10 MHz max clock frequency, and industrial/automotive temperature support (−40°C to +125°C). It features hardware write protection (WP pin), HOLD functionality for interrupt-safe pausing, and 16-byte page write capability - used in embedded system configuration storage, sensor calibration data retention, and firmware parameter backup.
For engineers reviewing the 25LC010AT-E/SN datasheet, 25LC010AT-E/SN pinout, 25LC010AT-E/SN application, or 25LC010AT-E/SN equivalent, key selection criteria include VCC operating range compatibility, WP/HOLD pin availability, SOIC-8 (SN) package footprint, endurance (1M cycles), and SPI timing compliance at target clock speed and voltage.
Technical Context
The 25LC010AT-E/SN implements a standard SPI Mode 0,0/Master-Slave interface with separate SI (data in) and SO (data out) lines, requiring CS, SCK, and optional WP/HOLD control. Its internal architecture includes a nonvolatile STATUS register with WIP/WEL/BP0/BP1 bits, enabling software-controlled block protection and write status polling.
Write operations require explicit WREN instruction followed by CS high transition to initiate self-timed internal write cycle (≤5 ms); page writes are bounded to 16-byte physical pages (e.g., 00h–0Fh, 10h–1Fh), with wraparound behavior on boundary crossing. Power-on reset clears the write enable latch and places SO in high-impedance state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit array), sufficient for small configuration tables or calibration constants in space-constrained designs. |
| Interface | SPI-compatible serial bus (Mode 0,0), compatible with PIC® and most MCU SPI peripherals without bit-banging. |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5 V, enabling fast read/write throughput (up to 1.25 MB/s theoretical burst rate). |
| Write Endurance | 1,000,000 erase/write cycles, supporting long-term field updates in industrial logging or adaptive control systems. |
| Data Retention | >200 years at +25°C, ensuring reliable storage of critical boot parameters or security keys over product lifetime. |
| Operating Temp | −40°C to +125°C (Automotive grade E), validated for under-hood or motor-control applications. |
| VCC Range | 2.5 V to 5.5 V, interoperable with 3.3 V and 5 V logic domains without level shifting. |
Pinout & Package
25LC010AT-E/SN is packaged in 8-lead SOIC (SN), with 1.27 mm pitch and standard JEDEC MS-012AC outline. Pin 1 is marked by laser dot or bevelled edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable; must go high after final data bit to trigger internal write cycle; deselects device and tri-states SO. |
| SO (Pin 2) | Serial Data Output | Tri-state output; data shifted out MSB-first on falling edge of SCK during READ; high-Z when CS = high or HOLD = low. |
| WP (Pin 3) | Write-Protect Input | Hardware lock: low = all writes (array & STATUS) disabled regardless of WEL state; overrides software protection. |
| VSS (Pin 4) | Ground | Reference return path for all I/O and core logic; must be connected before VCC during power-up sequencing. |
| SI (Pin 5) | Serial Data Input | Instruction/address/data input latched on rising edge of SCK; supports full-duplex SPI protocol with SO. |
| SCK (Pin 6) | Serial Clock Input | Master-generated clock; defines timing for SI sampling (rising edge) and SO update (falling edge); max 10 MHz. |
| HOLD (Pin 7) | Hold Input | Pauses ongoing SPI transaction when pulled low (with SCK low); resumes from same point when released - enables interrupt servicing. |
| VCC (Pin 8) | Supply Voltage | 2.5–5.5 V power rail; internal voltage regulator ensures stable core operation across full VCC range. |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Mode | Up to 16 bytes written per internal cycle (≤5 ms), reducing host MCU overhead vs. byte-by-byte writes. |
| Block Write Protection | Software-selectable protection of none / upper 1/4 / upper 1/2 / full memory array via BP0/BP1 bits in STATUS register. |
| Built-in Write Protection | Power-on reset clears WEL; WREN/WRDI instructions required; WP pin provides hardware override - prevents accidental writes. |
| HOLD Functionality | Halts SPI communication mid-sequence without losing state, allowing host MCU to service higher-priority interrupts. |
| Low-Power Operation | 5 µA standby current at +125°C and 5.5 V enables battery-backed or energy-harvesting applications. |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Storing calibrated offset/gain values for temperature and pressure sensors in factory-floor monitoring units. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at startup and updated during periodic recalibration routines. Use Value: Ensures measurement accuracy remains consistent across power cycles and firmware updates without external backup power. |
Use Scenario: Retaining seat position, mirror angle, and lighting preferences in vehicle door modules. IC Role / Device Role / Timing Role: SPI-connected parameter memory interfaced directly with 8-bit automotive MCU via dedicated CS line. Use Value: Supports AEC-Q100 Grade 1 reliability and −40°C to +125°C operation required for cabin electronics. |
| Medical Diagnostic Handheld | Smart Energy Meter |
Use Scenario: Saving user-defined test profiles and last-used settings in portable ultrasound or glucose meter devices. IC Role / Device Role / Timing Role: Low-power EEPROM accessed infrequently but requiring guaranteed data integrity over 10+ year shelf life. Use Value: >200-year data retention and 1M endurance meet IEC 62304 safety-critical storage requirements. |
Use Scenario: Logging tariff schedules, demand response events, and firmware version history in utility-grade meters. IC Role / Device Role / Timing Role: SPI EEPROM integrated into meter SoC subsystem with WP pin tied to secure microcontroller GPIO. Use Value: Hardware write-protection (WP) prevents tampering with billing-critical parameters during field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25AA010AT-I/SN | Wider VCC range (1.8–5.5 V); rated only for Industrial (−40°C to +85°C), not Automotive. | Lacks AEC-Q100 qualification; unsuitable for under-hood or high-temp chassis applications. | Select when 1.8 V operation is required and ambient temperature stays ≤+85°C. |
| AT25010B-SSHL-T | Same 1 Kbit size and SOIC-8 package; supports 20 MHz clock (vs. 10 MHz); different STATUS register layout. | Higher-speed SPI may require timing adjustments; no HOLD pin - limits interrupt-handling capability. | Choose for faster read/write throughput where HOLD functionality is not needed and Atmel/Adaptec ecosystem is preferred. |
Compared with 25LC010AT-E/SN, the 25AA010AT-I/SN offers broader voltage flexibility but sacrifices automotive temperature rating, while the AT25010B-SSHL-T delivers higher clock speed but removes HOLD support and changes protection register semantics - impacting interrupt-safe firmware design.
Availability
25LC010AT-E/SN is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and medical handheld diagnostics requiring stable component supply, long-term data retention, and AEC-Q100-compliant operation.
Supply support for 25LC010AT-E/SN 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 company specializing in microcontrollers, analog devices, and memory solutions, with a focus on embedded control and connectivity.
The 25LC010A family is designed for reliable, low-power nonvolatile storage in resource-constrained embedded systems - emphasizing SPI simplicity, hardware write protection, and extended temperature operation for automotive and industrial use cases.
FAQ
What is the maximum clock frequency supported by the 25LC010AT-E/SN?
The 25LC010AT-E/SN supports up to 10 MHz clock frequency when VCC is 4.5 V to 5.5 V. At lower voltages (2.5 V ≤ VCC < 4.5 V), the maximum clock drops to 5 MHz. This ensures timing compliance across its full operating voltage range without external clock dividers or firmware throttling in the 25LC010AT-E/SN implementation.
Does the 25LC010AT-E/SN have built-in hardware write protection?
Yes, the 25LC010AT-E/SN includes a dedicated WP (Write-Protect) pin (Pin 3). When held low, it disables all write operations to both memory array and STATUS register - independent of the WEL bit state. This hardware lock complements software-based BP0/BP1 block protection and is essential for preventing unauthorized or accidental writes in safety-critical 25LC010AT-E/SN deployments.
What package type does the 25LC010AT-E/SN use?
The 25LC010AT-E/SN uses an 8-lead SOIC package (suffix "SN"), measuring 3.9 mm × 4.9 mm with 1.27 mm lead pitch and JEDEC MS-012AC outline. It is RoHS-compliant, Pb-free, and optimized for reflow soldering in automated PCB assembly - matching footprint compatibility with industry-standard SPI EEPROMs like the 25AA010A series.
How many write/erase cycles can the 25LC010AT-E/SN endure?
The 25LC010AT-E/SN guarantees 1,000,000 erase/write cycles per memory location at +25°C and VCC = 5.5 V. This endurance rating is validated per Microchip's Total Endurance™ Model and supports frequent field updates in applications such as firmware parameter logging or adaptive calibration - making the 25LC010AT-E/SN suitable for long-lifecycle industrial equipment.
Is the 25LC010AT-E/SN qualified for automotive applications?
Yes, the 25LC010AT-E/SN carries Automotive (E) temperature grade qualification, operating reliably from −40°C to +125°C and meeting AEC-Q100 stress test requirements. The "E" in the part number explicitly denotes this automotive qualification, distinguishing it from the Industrial-grade 25AA010A variants - confirming its suitability for under-hood, chassis, and cabin electronics using the 25LC010AT-E/SN.
25LC010AT-E/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 10 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
25LC010AT-E/SN FAQ
1.How can I place an order for 25LC010AT-E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC010AT-E/SN 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 25LC010AT-E/SN reliable?
The price and inventory of 25LC010AT-E/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC010AT-E/SN is usually 5 days.
3.What payment methods are accepted for 25LC010AT-E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC010AT-E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC010AT-E/SN?
25LC010AT-E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC010AT-E/SN 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 25LC010AT-E/SN?
For technical support, including 25LC010AT-E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC010AT-E/SN requirements.
6.How does Aetrix verify that 25LC010AT-E/SN is sourced from the original manufacturer or authorized distributors?
All 25LC010AT-E/SN 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 25LC010AT-E/SN meets industry standards.
7.What is the process for return or replacement of 25LC010AT-E/SN?
All 25LC010AT-E/SN units undergo pre-shipment inspection (PSI). If there is an issue with 25LC010AT-E/SN, 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 25LC010AT-E/SN part is unused and in its original packaging.
Return procedure for 25LC010AT-E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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