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Microchip Technology AT25HP512C1-10CI-2.7
- Part No.:
- AT25HP512C1-10CI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TDFN
- Datasheet:
-
AT25HP512C1-10CI-2.7.pdf
- Description:
- IC EEPROM 512KBIT SPI 10MHZ 8LAP
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
AT25HP512C1-10CI-2.7 from Atmel (now Microchip) is a 512 Kbit serial SPI EEPROM organized as 65,536 × 8-bit words, operating from 2.7V to 5.5V with 5 MHz max clock rate at 2.7V, 100K write endurance, and >40-year data retention. It supports SPI Modes 0 and 3, 128-byte page writes only, and hardware/software block protection for industrial control and embedded firmware storage.
For engineers reviewing the AT25HP512C1-10CI-2.7 datasheet, AT25HP512C1-10CI-2.7 pinout, AT25HP512C1-10CI-2.7 application, or AT25HP512C1-10CI-2.7 equivalent, key selection considerations include its 8-lead Leadless Array Package (8CN1), industrial temperature range (–40°C to +85°C), 2.7V supply compatibility, HOLD/ WP pin functionality, and absence of byte-write support.
Technical Context
The AT25HP512C1-10CI-2.7 implements a synchronous SPI slave interface with separate SI/SO lines, MSB-first transmission, and op-code–driven command set (WREN, WRITE, RDSR, WRSR). It requires explicit Write Enable before programming and auto-resets to write-disable state post-write cycle.
Its architecture includes a nonvolatile status register with BP0/BP1 for 0%, 25%, 50%, or 100% array protection and WPEN bit enabling/disabling hardware write protection via the WP pin. The HOLD pin suspends ongoing serial transfers without resetting sequence state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 524,288 bits (65,536 × 8-bit words) - sufficient for boot code, calibration tables, or configuration storage in resource-constrained systems. |
| Supply Voltage Range | 2.7V to 5.5V - enables direct interfacing with 3.3V and 5V microcontrollers without level-shifting. |
| Max Clock Frequency | 5 MHz at VCC = 2.7V - defines maximum SPI transaction speed under low-voltage operation. |
| Write Endurance | 100,000 cycles - supports frequent field-updatable parameters in industrial logging or metering applications. |
| Data Retention | >40 years at +85°C - ensures long-term reliability for unattended equipment and infrastructure deployments. |
| Page Write Size | 128 bytes only - mandates aligned, burst-oriented writes; byte-wise updates require full-page read-modify-write. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor telemetry. |
Pinout & Package
AT25HP512C1-10CI-2.7 uses an 8-lead Leadless Array Package (8CN1), 8.00 mm × 5.00 mm × 1.04 mm body, 1.27 mm pitch, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: initiates SPI communication; high-Z SO when CS high. |
| SCK | Serial Clock Input | Master-generated clock synchronizing SI/SO data transfer; supports Modes 0 and 3. |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; ignored during HOLD or write cycles. |
| SO | Serial Data Output | Drives read data or status bits; enters high-impedance state when CS high or during HOLD. |
| GND | Ground Reference | Primary return path for VCC and I/O; must be low-impedance for noise immunity. |
| VCC | Power Supply | 2.7V–5.5V input; powers internal logic and memory array; decoupling capacitor required. |
| WP | Write Protect | Hardware lock: disables status register writes when WP low and WPEN=1; configurable via WRSR. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting address counter; requires SCK low to assert. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Compatibility | Interoperates with common MCU SPI peripherals without custom timing or polarity inversion logic. |
| Block Write Protection (BP0/BP1) | Enables selective locking of top 25%, 50%, or 100% of memory - prevents accidental overwrite of critical firmware sections. |
| HOLD Pin Functionality | Allows master to temporarily halt serial transfers (e.g., during interrupt servicing) without losing sequence context or reinitializing. |
| Separate Program Enable/Disable | WREN/WRDI instructions provide software-controlled write gating independent of WP pin state - enhances system-level security. |
| 128-Byte Page Write Only | Optimizes write throughput for bulk updates but eliminates partial-page corruption risk - no partial writes possible. |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data |
|---|---|
|
Use Scenario: Storing I/O mapping, scaling factors, and alarm thresholds in programmable logic controllers deployed in harsh factory environments. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via SPI during power-up or runtime reconfiguration. Use Value: Ensures deterministic startup behavior and retains settings across power cycles and firmware updates without battery backup. |
Use Scenario: Holding sensor offset/gain coefficients and patient-specific therapy parameters in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure, long-retention data vault accessed during device initialization and calibration routines. Use Value: Meets IEC 62304 requirements for data integrity and supports field recalibration without hardware modification. |
| Smart Energy Meter Firmware Patching | Automotive Body Control Module Settings |
|
Use Scenario: Hosting incremental firmware patches and tariff tables downloaded over PLC or RF links in utility meters. IC Role / Device Role / Timing Role: Field-upgradable code/data repository with hardware write protection for critical segments. Use Value: Enables remote feature activation and regulatory compliance updates while preventing unauthorized modification of billing logic. |
Use Scenario: Storing seat/mirror position presets, lighting profiles, and door lock configurations in automotive BCMs. IC Role / Device Role / Timing Role: Persistent user preference store accessed via CAN-to-SPI bridge or local microcontroller. Use Value: Maintains personalized settings across vehicle battery disconnects and ECU reflashes without requiring relearning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95512-DRMN6TP/K | 512 Kbit SPI EEPROM, 1.8–5.5V, 10 MHz @ 5V, 8-lead SOIC package, no HOLD pin. | Lacks HOLD functionality; requires software-managed pause/resume; better suited for cost-sensitive, non-interrupt-driven systems. | Select if HOLD is unused and higher clock speed at 5V is prioritized over suspend capability. |
| AT25DF512C-SSHN-B | 512 Kbit SPI DataFlash, 2.3–3.6V only, 70 MHz DTR mode, internal page buffer, sector erase support. | Requires different command set and erase management; incompatible voltage range; optimized for firmware image storage, not random-access config. | Choose only for high-speed sequential reads/writes in 3.3V-only designs where erase granularity matters. |
Compared with M95512-DRMN6TP/K and AT25DF512C-SSHN-B, the AT25HP512C1-10CI-2.7 uniquely balances industrial voltage range, HOLD pin support, and simple page-write protocol - making it optimal for deterministic, interrupt-aware embedded control where robustness outweighs raw speed.
Availability
AT25HP512C1-10CI-2.7 is available at Aetrix Electronics and suitable for industrial PLC configuration storage, medical device calibration data retention, and smart energy meter firmware patching requiring stable component supply across extended product lifecycles.
Supply support for AT25HP512C1-10CI-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 (formerly Atmel) is a global semiconductor company specializing in microcontrollers, analog, and memory solutions, with leadership in embedded control and secure authentication.
The AT25HP512C1-10CI-2.7 belongs to the AT25HP serial EEPROM family, designed for reliable, low-power, industrial-grade nonvolatile storage in space-constrained systems requiring SPI simplicity and long-term data integrity.
FAQ
What is the package type and footprint of AT25HP512C1-10CI-2.7?
AT25HP512C1-10CI-2.7 uses an 8-lead Leadless Array Package (8CN1) with 8.00 mm × 5.00 mm body size, 1.27 mm pitch, and exposed pad-less construction. Its footprint matches JEDEC-standard LAP layouts and requires solder paste stencil optimization for void-free reflow. This package offers superior thermal performance and board space savings versus SOIC or PDIP alternatives.
Does AT25HP512C1-10CI-2.7 support byte-level writes?
No, AT25HP512C1-10CI-2.7 supports only 128-byte page writes - it does not allow single-byte or partial-page programming. Attempting a write with fewer than 128 bytes results in undefined content in that page. Full-page read-modify-write sequences must be implemented in firmware to update individual bytes.
How does the HOLD pin function during SPI communication?
The HOLD pin on AT25HP512C1-10CI-2.7 suspends ongoing SPI transfers without resetting the internal address counter or command state. To activate, HOLD must be pulled low while SCK is low; resuming requires returning HOLD high while SCK remains low. During HOLD, SI is ignored and SO stays high-Z, preserving synchronization for time-critical interrupt handling.
What protection mechanisms prevent unintended writes to AT25HP512C1-10CI-2.7?
AT25HP512C1-10CI-2.7 employs dual-layer protection: software-based via WREN/WRDI instructions and status register BP0/BP1 bits, and hardware-based via the WP pin when WPEN=1. Both mechanisms can be used simultaneously - e.g., WP pin locks status register writes while BP bits protect memory regions - ensuring defense-in-depth against accidental or malicious modification.
Is AT25HP512C1-10CI-2.7 compatible with 1.8V systems?
No, AT25HP512C1-10CI-2.7 is specifically rated for 2.7V to 5.5V operation. For 1.8V systems, the pin-compatible AT25HP512C1-10CI-1.8 variant must be used. Mixing voltage grades risks unreliable communication, increased bit errors, or permanent damage due to VIH/VIL threshold violations outside the specified range.
AT25HP512C1-10CI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TDFN
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 10 MHz
- Write Cycle Time - Word, Page:
- 10ms
- 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-LAP (8x5)
AT25HP512C1-10CI-2.7 FAQ
1.How can I place an order for AT25HP512C1-10CI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25HP512C1-10CI-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 AT25HP512C1-10CI-2.7 reliable?
The price and inventory of AT25HP512C1-10CI-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 AT25HP512C1-10CI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25HP512C1-10CI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25HP512C1-10CI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25HP512C1-10CI-2.7?
AT25HP512C1-10CI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25HP512C1-10CI-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 AT25HP512C1-10CI-2.7?
For technical support, including AT25HP512C1-10CI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25HP512C1-10CI-2.7 requirements.
6.How does Aetrix verify that AT25HP512C1-10CI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25HP512C1-10CI-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 AT25HP512C1-10CI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25HP512C1-10CI-2.7?
All AT25HP512C1-10CI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25HP512C1-10CI-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 AT25HP512C1-10CI-2.7 part is unused and in its original packaging.
Return procedure for AT25HP512C1-10CI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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