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Microchip Technology AT25080-10PI
- Part No.:
- AT25080-10PI
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25080-10PI.pdf
- Description:
- IC EEPROM 8KBIT SPI 3MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,630
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Product details
Overview
AT25080-10PI from Atmel is an 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, operating across 2.7V–5.5V supply range, supporting 3.0 MHz clock rate at 5V, with 32-byte page write capability and hardware/software write protection via WP pin and status register. It serves as nonvolatile configuration storage in industrial microcontroller systems requiring extended temperature reliability.
For engineers reviewing the AT25080-10PI datasheet, AT25080-10PI pinout, AT25080-10PI application, or AT25080-10PI equivalent, this page delivers verified electrical specs, industrial-grade (-40°C to +85°C) operation details, SPI timing constraints, block protection mapping, and validated alternative parts for design continuity and sourcing resilience.
Technical Context
The AT25080-10PI implements a synchronous SPI slave interface compliant with Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), using dedicated SI/SO lines and controlled by CS, SCK, WP, and HOLD pins. Its internal architecture includes an 8-bit instruction register, nonvolatile status register (WPEN, BP1/BP0, WEN, RDY), and automatic address incrementing during sequential reads.
It features self-timed internal write cycles (5 ms typical), no external erase requirement, and dual-layer data protection: software-enabled via WREN/WRSR instructions and hardware-enforced via WP pin when WPEN=1. Block write protection covers 0%, 25%, 50%, or 100% of the 1024-word array based on BP1/BP0 bit settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit words) - fixed capacity for compact firmware parameter or calibration storage. |
| Supply Voltage Range | 2.7 V to 5.5 V - supports mixed-voltage industrial systems without level-shifting. |
| Max Clock Frequency | 3.0 MHz at VCC = 5.0 V - enables fast configuration read/write within MCU SPI peripheral limits. |
| Write Cycle Time | 5 ms typical - defines minimum interval between write commands; impacts boot-time initialization latency. |
| Endurance | 1 million write cycles - ensures long-term reliability in field-updatable control applications. |
| Data Retention | 100 years - guarantees persistent storage integrity over product lifetime without refresh. |
| Operating Temperature | -40°C to +85°C - qualified for industrial ambient environments without derating. |
Pinout & Package
AT25080-10PI is supplied in 8-pin PDIP (package code 8P3), measuring 0.300" wide per JEDEC MS-001 BA standard. Pinout matches both 8-pin PDIP and 8-lead SOIC footprints, enabling direct PCB footprint compatibility across package variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be low for serial communication; high-Z SO when CS high. |
| SCK | Serial Clock Input | Synchronizes all data transfers; master-generated edge-triggered signal. |
| SI | Serial Data Input | Receives op-codes, addresses, and write data; MSB-first protocol. |
| SO | Serial Data Output | Drives read data and status bits; tri-stated when CS high or HOLD active. |
| GND | Ground Reference | Signal and power return path; must be low-impedance for noise immunity. |
| VCC | Power Supply | 2.7–5.5 V input; decoupling capacitor required near pin for stable SPI operation. |
| WP | Write Protect | Hardware lock for status register when WPEN=1; prevents accidental reconfiguration. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; requires SCK low to assert. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode Compatibility | Supports Modes 0 and 3 - interoperates with diverse MCUs including 68HC11, ARM Cortex-M, and PIC without mode translation logic. |
| Page Write Capability | 32-byte burst writes - reduces total programming time vs. byte-wise writes; critical for efficient factory calibration upload. |
| Block Write Protection | Configurable 0%/25%/50%/100% array lock via BP1/BP0 - isolates critical firmware parameters from runtime corruption. |
| Write Enable Latch | WREN/WRDI instructions required before any write - enforces explicit software intent, preventing spurious writes during power transients. |
| Industrial Temperature Rating | -40°C to +85°C operation - validated for deployment in motor drives, PLC I/O modules, and outdoor metering hardware. |
Applications
| Industrial Sensor Node | Motor Control Module |
|---|---|
|
Use Scenario: Stores calibrated sensor offsets, gain coefficients, and fault history logs in battery-backed wireless nodes deployed in factory environments. IC Role / Device Role / Timing Role: Nonvolatile configuration memory interfaced directly to an ARM Cortex-M0+ MCU via SPI at 2 MHz. Use Value: Enables field recalibration without firmware update; 1M endurance supports >10 years of daily recalibration cycles. |
Use Scenario: Holds motor startup profiles, current limit thresholds, and encoder zero-point offsets in HVAC inverter drives. IC Role / Device Role / Timing Role: SPI-configurable parameter store accessed during power-up initialization and runtime fault recovery. Use Value: Eliminates need for external NVRAM backup; -40°C to +85°C rating ensures reliable operation inside enclosed drive cabinets. |
| Programmable Logic Controller (PLC) | Smart Energy Meter |
|
Use Scenario: Retains user-defined I/O mapping tables, ladder logic checksums, and communication protocol settings across power cycles. IC Role / Device Role / Timing Role: Dedicated SPI EEPROM co-located with the PLC's main controller ASIC for deterministic boot-time load. Use Value: Supports secure firmware updates with write-protected bootloader region; WP pin tied to system security controller. |
Use Scenario: Stores tariff schedules, tamper-event timestamps, and metrology calibration constants in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: High-reliability data logger synchronized to real-time clock interrupts for time-stamped event capture. Use Value: 100-year data retention meets utility-grade archival requirements; 2.7V min VCC allows operation during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DRMN6TP/K | 8-Kbit SPI EEPROM, 1.8–5.5 V, 20 MHz max clock, 5 ms write cycle, same 8-lead SOIC package. | Higher speed and wider voltage range; lacks HOLD pin and 1/4-array protection granularity. | Select when higher throughput or 1.8 V operation is required; verify HOLD functionality not needed in host design. |
| BR24G08FJ-WE2 | 8-Kbit I²C EEPROM, 1.7–5.5 V, 400 kHz standard mode, 5 ms write cycle, 8-lead TSSOP package. | I²C interface instead of SPI; no WP/HOLD pins; uses ACK-based write completion signaling. | Choose for I²C-bus systems where pin count or protocol reuse outweighs SPI performance needs. |
Compared with M95080-DRMN6TP/K and BR24G08FJ-WE2, the AT25080-10PI provides deterministic SPI timing, HOLD functionality for multi-master arbitration, and fine-grained 25% block protection-making it optimal for industrial MCU designs requiring robust, interruptible configuration storage.
Availability
AT25080-10PI is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control modules, programmable logic controllers, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT25080-10PI 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 semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and secure authentication ICs for industrial and automotive markets.
The AT25080-10PI belongs to Atmel's AT25xxx SPI EEPROM family, designed specifically for reliable, low-power, pin-efficient nonvolatile storage in resource-constrained embedded systems operating under harsh environmental conditions.
FAQ
What is the maximum clock frequency supported by the AT25080-10PI at 3.3 V?
The AT25080-10PI supports up to 2.1 MHz at VCC = 2.7–5.5 V per AC Characteristics table. At 3.3 V, this translates to a guaranteed 2.1 MHz operation - sufficient for most Cortex-M0/M3 SPI peripherals without overclocking risk. The AT25080-10PI datasheet specifies tWH/tWL ≥200 ns minimum, enforcing this limit for setup/hold compliance.
Does the AT25080-10PI require an external erase command before writing?
No, the AT25080-10PI does not require a separate erase command. All write operations are self-timed and automatically erase the target byte or page prior to programming. This simplifies firmware implementation - only WREN followed by WRITE instruction is needed, with RDSR polling for RDY=0 confirming completion.
How is block write protection configured on the AT25080-10PI?
Block write protection on the AT25080-10PI is set via BP0 and BP1 bits in the nonvolatile status register, programmed using the WRSR instruction. These bits define four protection levels: 0% (BP1=0,BP0=0), 25% (0,1), 50% (1,0), or 100% (1,1) of the 1024-word array. The AT25080-10PI retains these settings across power cycles.
Can the AT25080-10PI operate with a 1.8 V supply?
No - the AT25080-10PI variant is rated for 2.7 V to 5.5 V only. For 1.8 V operation, Atmel offers the AT25080-10PI-1.8 (ordering code suffix -1.8), which has different DC/AC specs including reduced max clock (0.5 MHz) and higher tWC (20 ms). Using AT25080-10PI below 2.7 V violates specification and risks data corruption.
What is the function of the HOLD pin on the AT25080-10PI?
The HOLD pin on the AT25080-10PI suspends ongoing SPI communication without resetting the internal address counter or instruction state. When asserted low while SCK is low, it places SO in high-impedance and ignores SI inputs. Resuming requires bringing HOLD high while SCK remains low - preserving full transaction context for deterministic multi-tasking in real-time systems.
AT25080-10PI 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25080-10PI FAQ
1.How can I place an order for AT25080-10PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080-10PI 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 AT25080-10PI reliable?
The price and inventory of AT25080-10PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25080-10PI is usually 5 days.
3.What payment methods are accepted for AT25080-10PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080-10PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080-10PI?
AT25080-10PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080-10PI 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 AT25080-10PI?
For technical support, including AT25080-10PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080-10PI requirements.
6.How does Aetrix verify that AT25080-10PI is sourced from the original manufacturer or authorized distributors?
All AT25080-10PI 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 AT25080-10PI meets industry standards.
7.What is the process for return or replacement of AT25080-10PI?
All AT25080-10PI units undergo pre-shipment inspection (PSI). If there is an issue with AT25080-10PI, 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 AT25080-10PI part is unused and in its original packaging.
Return procedure for AT25080-10PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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