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Microchip Technology AT25080-10PC-2.7
- Part No.:
- AT25080-10PC-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25080-10PC-2.7.pdf
- Description:
- IC EEPROM 8KBIT SPI 3MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,083
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Product details
Overview
AT25080-10PC-2.7 from Atmel is a 8K-bit (1024 × 8) SPI serial EEPROM optimized for low-voltage embedded systems, supporting VCC = 2.7V to 5.5V, 32-byte page write mode, hardware/software write protection, and 1 million write cycles endurance. It operates in SPI Modes 0 and 3 and is used in industrial control modules for nonvolatile parameter storage.
For engineers reviewing the AT25080-10PC-2.7 datasheet, AT25080-10PC-2.7 pinout, AT25080-10PC-2.7 application, or AT25080-10PC-2.7 equivalent, key selection criteria include its 2.7–5.5V supply range, 10 ms max write cycle time, block-level write protection (1/4, 1/2, or full array), HOLD/CS suspend capability, and compatibility with 8-pin PDIP packaging.
Technical Context
The AT25080-10PC-2.7 implements a synchronous slave SPI interface with separate SI/SO lines, MSB-first data transfer, and op-code–driven command execution (WREN, WRITE, RDSR, WRSR). It requires explicit Write Enable before programming and supports automatic address increment during multi-byte reads.
Its internal architecture includes a nonvolatile status register (BP0/BP1/WPEN/WEN/RDY bits), page-mode write logic limiting burst writes to 32 bytes per CS high transition, and dual-layer write protection-hardware via WP pin (when WPEN=1) and software via status register configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8192 bits (1024 words × 8 bits); sufficient for firmware calibration tables or device configuration registers in space-constrained designs. |
| Supply Voltage Range | 2.7V to 5.5V; enables direct interfacing with 3.3V microcontrollers without level-shifting and backward compatibility with 5V legacy systems. |
| Max Clock Frequency | 2.1 MHz at 2.7–5.5V; supports reliable communication up to ~210 kbps effective throughput in standard SPI mode. |
| Write Cycle Time | 10 ms typical (max); defines minimum interval between successive WRITE commands and impacts real-time logging latency. |
| Endurance | 1,000,000 write cycles; ensures >10 years of daily 270-write operation in field-deployed equipment with infrequent updates. |
| Data Retention | 100 years at 25°C; guarantees long-term integrity of stored calibration coefficients or security keys without refresh. |
| Operating Temperature | 0°C to +70°C (Commercial grade); validated for use in consumer electronics, office peripherals, and non-automotive industrial enclosures. |
Pinout & Package
AT25080-10PC-2.7 is supplied in an 8-pin PDIP (Plastic Dual Inline Package), 0.300" wide, with 0.100" lead pitch. Pin 1 is marked by a notch or dot; leads are tin-lead plated and RoHS-compliant per Atmel documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable: initiates SPI transaction; must remain low for entire instruction sequence including address/data transfer. |
| SCK | Serial Clock | Master-generated clock input; timing-critical for setup/hold compliance; supports Modes 0 and 3 (CPOL/CPHA). |
| SI | Serial Data Input | Input-only MOSI line; receives op-codes, addresses, and write data; latched on SCK rising/falling edge per mode. |
| SO | Serial Data Output | Output-only MISO line; drives read data and status bits; tri-states when CS high or during HOLD assertion. |
| GND | Ground Reference | Primary return path for VCC, I/O, and internal logic; requires low-impedance connection to minimize noise coupling. |
| VCC | Power Supply | Single 2.7–5.5V supply; powers core logic, memory array, and I/O buffers; bypass capacitor (0.1 µF) required near pin. |
| WP | Write Protect | Hardware lock: disables status register writes when low and WPEN=1; does not affect read or unprotected memory writes. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting state machine; allows master to service higher-priority interrupts mid-sequence. |
Key Features
| Feature | Design Value |
|---|---|
| 32-byte Page Write Mode | Enables efficient burst programming of contiguous configuration data without individual byte addressing overhead. |
| Four-Level Block Protection | Configurable via status register (BP1/BP0) to lock 0%, 25%, 50%, or 100% of memory-prevents accidental overwrite of critical firmware parameters. |
| Hardware + Software Write Protection | WP pin blocks status register writes when enabled; WRSR instruction configures protection scope; WRDI resets latch independently of WP state. |
| HOLD Pin Functionality | Allows deterministic pause/resume of SPI transactions-critical for deterministic real-time systems where bus arbitration is required. |
| Self-Timed Internal Write Cycle | No external erase step needed; device manages charge pump and verify internally; RDSR bit 0 indicates READY/BUSY status. |
Applications
| Industrial Sensor Calibration | Consumer Appliance Configuration |
|---|---|
|
Use Scenario: Storing temperature compensation coefficients and sensor offset values in factory-calibrated pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with infrequent writes (<100/year) and guaranteed 100-year retention under ambient conditions. Use Value: Eliminates need for battery-backed SRAM; reduces BOM cost and improves long-term reliability in unattended field deployments. |
Use Scenario: Saving user preferences (e.g., cooking time, temperature presets) in microwave ovens across power cycles. IC Role / Device Role / Timing Role: Low-power, 3.3V-compatible EEPROM interfaced directly to MCU GPIOs with no level shifters required. Use Value: Enables instant recall of settings after AC power loss; leverages 2.7V min VCC to operate during brown-out conditions. |
| Medical Device Setup Data | Networking Equipment Boot Parameters |
|
Use Scenario: Holding device-specific serial numbers, calibration dates, and regulatory compliance flags in portable ECG monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with hardware write protection (WP pin tied low) preventing runtime corruption. Use Value: Meets IEC 62304 traceability requirements; WPEN bit ensures status register remains locked even if firmware is compromised. |
Use Scenario: Storing MAC address, boot image checksum, and PHY initialization values in Ethernet switches during cold start. IC Role / Device Role / Timing Role: Fast-read SPI EEPROM accessed early in boot sequence; 2.1 MHz clock supports sub-millisecond read latency. Use Value: Reduces boot time vs. I²C EEPROM; HOLD pin allows CPU to defer EEPROM access while initializing DDR controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DRMN3TP/K | STMicroelectronics 8K SPI EEPROM; identical 8-pin SOIC package but rated for -40°C to +125°C; 5 ms max tWC at 5V vs. 10 ms for AT25080-10PC-2.7 at 2.7V. | Preferred for automotive under-hood modules requiring extended temperature support; less suitable for cost-sensitive commercial gear where 0–70°C suffices. | Select M95080-DRMN3TP/K only if extended temp or faster write timing is mandatory; otherwise AT25080-10PC-2.7 offers better price/performance in commercial-grade designs. |
| 25AA080C-I/P | Microchip 8K SPI EEPROM; same 2.7–5.5V range and 8-pin PDIP package; features ESD-hardened I/O (4 kV HBM) and 1.8–5.5V VCC option, but lacks HOLD pin. | Used where robustness against board-level ESD events is critical (e.g., handheld test equipment); unsuitable when SPI transaction suspension is required. | Choose 25AA080C-I/P for ESD-prone environments; retain AT25080-10PC-2.7 when HOLD functionality is needed for deterministic interrupt handling. |
Compared with M95080-DRMN3TP/K and 25AA080C-I/P, AT25080-10PC-2.7 uniquely balances commercial-temp cost efficiency, HOLD pin support for real-time systems, and proven 1M-cycle endurance-making it optimal for industrial controllers and consumer electronics where deterministic SPI control and moderate write frequency coexist.
Availability
AT25080-10PC-2.7 is available at Aetrix Electronics and suitable for industrial control systems, consumer appliance manufacturing, medical device production, and networking equipment requiring stable component supply and long-lifecycle support.
Supply support for AT25080-10PC-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) is a fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT25080 series belongs to Atmel's SPI serial EEPROM product line, designed specifically for embedded systems needing reliable, low-power, pin-efficient nonvolatile storage with flexible voltage operation and robust data protection.
FAQ
What is the maximum clock frequency supported by AT25080-10PC-2.7 at 3.3V operation?
The AT25080-10PC-2.7 supports up to 2.1 MHz SCK frequency when operated within its 2.7–5.5V supply range, including at 3.3V nominal. This is specified in the AC Characteristics table under fSCK (VCC = 2.7–5.5V) and reflects guaranteed timing margins for reliable SPI communication in commercial-temperature environments.
Does AT25080-10PC-2.7 require an external erase command before writing new data?
No, the AT25080-10PC-2.7 does not require a separate erase command. All write operations are self-timed and automatically erase and program the target memory location during the internal write cycle. The device only requires a preceding WREN instruction to set the Write Enable Latch before any WRITE or WRSR command.
How is write protection configured on AT25080-10PC-2.7?
Write protection on AT25080-10PC-2.7 is configured using two mechanisms: software via the WRSR instruction to set BP0/BP1 bits in the status register (selecting 0%, 25%, 50%, or 100% array protection), and hardware via the WP pin when the WPEN bit is set to "1". Both methods can be used concurrently for layered security.
Can AT25080-10PC-2.7 be used with a 1.8V microcontroller system?
No, AT25080-10PC-2.7 is rated for 2.7V to 5.5V operation only. For 1.8V systems, Atmel offers the AT25080-10PC-1.8 variant (with 1.8–3.6V range and 20 ms max write cycle). Using AT25080-10PC-2.7 below 2.7V violates absolute maximum ratings and risks unreliable read/write behavior or data corruption.
What is the function of the HOLD pin on AT25080-10PC-2.7?
The HOLD pin on AT25080-10PC-2.7 suspends ongoing SPI communication without resetting the internal state machine. When asserted low (with SCK low), it places SO in high-impedance and ignores SI inputs, allowing the master MCU to service interrupts or perform other tasks before resuming the exact same transaction sequence.
AT25080-10PC-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:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 3 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25080-10PC-2.7 FAQ
1.How can I place an order for AT25080-10PC-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080-10PC-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 AT25080-10PC-2.7 reliable?
The price and inventory of AT25080-10PC-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 AT25080-10PC-2.7 is usually 5 days.
3.What payment methods are accepted for AT25080-10PC-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080-10PC-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080-10PC-2.7?
AT25080-10PC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080-10PC-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 AT25080-10PC-2.7?
For technical support, including AT25080-10PC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080-10PC-2.7 requirements.
6.How does Aetrix verify that AT25080-10PC-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25080-10PC-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 AT25080-10PC-2.7 meets industry standards.
7.What is the process for return or replacement of AT25080-10PC-2.7?
All AT25080-10PC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080-10PC-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 AT25080-10PC-2.7 part is unused and in its original packaging.
Return procedure for AT25080-10PC-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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