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Microchip Technology AT25080B-MAPDGV-E
- Part No.:
- AT25080B-MAPDGV-E
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25080B-MAPDGV-E.pdf
- Description:
- IC EEPROM 8KBIT SPI 5MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,993
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Product details
Overview
AT25080B-MAPDGV-E from Microchip Technology is an AEC-Q100 Grade 1 automotive-qualified 8 Kbit SPI serial EEPROM organized as 1,024 × 8 bits, operating from 2.5V to 5.5V over –40°C to +125°C, supporting 5 MHz clock rate and 32-byte page writes for nonvolatile configuration storage in engine control units.
For engineers reviewing the AT25080B-MAPDGV-E datasheet, AT25080B-MAPDGV-E pinout, AT25080B-MAPDGV-E application, or AT25080B-MAPDGV-E equivalent, this page delivers verified electrical specs, SPI timing constraints, write-protection logic, HOLD/CS interaction behavior, and automotive-grade reliability metrics including 1,000,000 write cycles and 100-year data retention.
Technical Context
The AT25080B-MAPDGV-E implements a synchronous SPI slave interface compliant with Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), with data latched on SCK rising edge and output on falling edge. It integrates a nonvolatile STATUS register controlling WPEN, BP1/BP0 block protection, WEL latch, and RDY/BSY flag.
Its architecture includes high-voltage generation for EEPROM programming, address/data registers, row/column decoders, and power-on reset circuitry ensuring robust initialization. The HOLD pin suspends serial communication without affecting ongoing internal write cycles, while WP enables hardware-level write inhibition when WPEN=1 and WP=low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 8 Kbits (1,024 × 8), sufficient for firmware boot flags, calibration tables, and fault logs in ECUs |
| Supply voltage range | 2.5V to 5.5V (Grade 1), enabling direct connection to 3.3V or 5V automotive microcontroller I/O rails |
| Operating temperature | –40°C to +125°C (AEC-Q100 Grade 1), qualified for under-hood engine control module deployment |
| SPI clock frequency | Up to 5 MHz at 5V, supporting fast parameter read/write during vehicle startup or diagnostics |
| Page write size | 32 bytes per page write, minimizing bus occupancy and enabling efficient partial-array updates |
| Write endurance | 1,000,000 cycles, validated at 25°C/3.3V for long-term durability in cyclic logging applications |
| Data retention | 100 years at 55°C, guaranteeing persistent storage of safety-critical calibration data across vehicle lifetime |
Pinout & Package
AT25080B-MAPDGV-E uses an 8-lead SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch) with gull-wing leads and standard JEDEC MO-002AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must transition high→low before SCK activity; requires pull-up ≤10 kΩ for robust power-up behavior |
| SO | Serial Data Output | Tri-state open-drain output; drives data on falling SCK edge; high-impedance when CS high or HOLD active |
| WP | Write-Protect | Hardware lock for STATUS register writes when WPEN=1; no effect on memory writes unless BP bits are set |
| GND | Ground reference | System ground return path; connects to exposed pad in UDFN variants (not applicable to SOIC) |
| SI | Serial Data Input | Latches opcode/address/data on rising SCK edge; ignored during HOLD or when CS high |
| SCK | Serial Clock | Master-generated clock; idle state must match SPI mode (low for Mode 0, high for Mode 3) |
| HOLD | Suspend Serial Input | Pauses SPI transfer without resetting sequence; requires SCK low to assert/deassert; does not halt active write cycle |
| VCC | Device Power Supply | 2.5–5.5V supply; monotonic ramp required ≥0.1 V/µs; POR threshold at 1.5V ensures reliable reset |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive under-hood operation up to +125°C case temperature with full parametric testing |
| Block write protection | Configurable via STATUS register BP1/BP0 bits to protect 0%, 25%, 50%, or 100% of memory array against accidental overwrite |
| Hardware + software write protection | Combines WP pin (hardware lock) with WREN/WRDI instructions and STATUS register control for layered security |
| Self-timed write cycle | Maximum 5 ms internal erase/program time; RDY/BSY bit indicates completion without polling overhead |
| Green RoHS-compliant packaging | Lead-free, halide-free SOIC package meeting automotive environmental compliance requirements |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Storing real-time engine calibration maps, fault codes, and adaptive learning parameters that persist across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage interfaced directly to MCU SPI bus; accessed during boot and runtime diagnostics. Use Value: Enables field-upgradable calibration without external flash, leveraging 100-year retention and AEC-Q100 Grade 1 thermal stability. |
Use Scenario: Retaining camera lens alignment offsets, radar sensor compensation coefficients, and system health logs in ADAS domain controllers. IC Role / Device Role / Timing Role: SPI-configurable parameter store synchronized with CAN/FlexRay messaging; updated during vehicle service or OTA events. Use Value: Ensures safety-critical tuning data survives 1M+ write cycles and maintains integrity at +105°C ambient in compact sensor modules. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|
Use Scenario: Holding user preferences (window position, mirror angle), door lock configurations, and lighting profiles across battery disconnect events. IC Role / Device Role / Timing Role: Low-power SPI EEPROM accessed intermittently by BCM microcontroller; leverages <10 µA standby current at 1.7V. Use Value: Delivers reliable personalization storage with zero data loss risk during vehicle sleep modes and cold cranking voltage dips. |
Use Scenario: Storing torque sensor zero-point calibration, motor phase advance tables, and fault history in EPS electronic control units. IC Role / Device Role / Timing Role: Safety-relevant nonvolatile memory co-located with EPS MCU; protected via WP pin and BP bits to prevent corruption during EMI events. Use Value: Meets ASIL-B functional safety requirements through deterministic write timing, status flag visibility, and hardware-enforced protection. |
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 8 Kbit SPI EEPROM; supports 2.5–5.5V, –40°C to +125°C, but lacks HOLD pin and has 16-byte page size | No suspend capability limits use in multi-master SPI systems requiring bus arbitration; smaller page reduces burst efficiency | Select when HOLD functionality is unnecessary and legacy ST ecosystem integration is prioritized |
| BR24G08FJ-3GE2 | Rohm 8 Kbit SPI EEPROM; 1.7–5.5V, –40°C to +105°C, includes HOLD pin but only AEC-Q100 Grade 2 qualified | Lower max temperature rating excludes under-hood placement; identical 32-byte page and WP/SO/SI/SCK pinout | Choose for cabin-mounted modules where +105°C suffices and Rohm supply chain preference applies |
Compared with M95080-DRMN3TP/K and BR24G08FJ-3GE2, AT25080B-MAPDGV-E uniquely combines AEC-Q100 Grade 1 qualification, HOLD pin support, and 32-byte page writes-enabling robust, high-throughput configuration storage in thermally demanding automotive control nodes.
Availability
AT25080B-MAPDGV-E is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, body control modules, and electric power steering systems requiring stable component supply across extended automotive lifecycles.
Supply support for AT25080B-MAPDGV-E 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with global manufacturing and automotive qualification infrastructure.
The AT25080B-MAPDGV-E belongs to Microchip's automotive-grade serial EEPROM product line, designed specifically for mission-critical nonvolatile storage in AEC-Q100-compliant electronic control units where reliability, temperature resilience, and SPI interoperability are mandatory.
FAQ
What is the maximum SPI clock frequency supported by the AT25080B-MAPDGV-E?
The AT25080B-MAPDGV-E supports up to 5 MHz SPI clock frequency at VCC = 5.0V. At lower supply voltages (e.g., 2.5V), the maximum clock rate decreases per AC characteristics table; design margin should be applied for signal integrity and temperature variation. This 5 MHz capability enables rapid read/write of calibration data during ECU boot sequences.
Does the AT25080B-MAPDGV-E support both SPI Mode 0 and Mode 3?
Yes, the AT25080B-MAPDGV-E supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). Data is always latched on the rising edge of SCK and output on the falling edge. The key distinction is SCK idle state polarity-low for Mode 0, high for Mode 3-and must be consistent before and after CS assertion.
How does the HOLD pin function during an active write cycle in the AT25080B-MAPDGV-E?
The HOLD pin in the AT25080B-MAPDGV-E suspends serial communication but does not interrupt an ongoing internal write cycle. If a WRITE command has already initiated the self-timed 5 ms programming sequence, asserting HOLD will pause further SPI commands but allow the write to complete. The RDY/BSY bit reflects true device readiness regardless of HOLD state.
What write protection mechanisms are implemented in the AT25080B-MAPDGV-E?
The AT25080B-MAPDGV-E implements dual-layer write protection: hardware-based via the WP pin (active-low, effective only when WPEN=1 in STATUS register) and software-configurable via BP1/BP0 bits to protect 0%, 25%, 50%, or 100% of memory. WREN/WRDI instructions control the Write Enable Latch (WEL), adding instruction-level gating before any write operation.
Is the AT25080B-MAPDGV-E pin-compatible with other members of the AT25xxxB family?
Yes, the AT25080B-MAPDGV-E shares identical 8-pin SOIC pinout, SPI command set, STATUS register layout, and timing specifications with AT25160B, AT25320B, and AT25640B. Memory density differs (8K/16K/32K/64K), but PCB layout, firmware drivers, and protection logic remain fully reusable across the family for scalable BOM management.
AT25080B-MAPDGV-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 5 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (2x3)
AT25080B-MAPDGV-E FAQ
1.How can I place an order for AT25080B-MAPDGV-E through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080B-MAPDGV-E 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 AT25080B-MAPDGV-E reliable?
The price and inventory of AT25080B-MAPDGV-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25080B-MAPDGV-E is usually 5 days.
3.What payment methods are accepted for AT25080B-MAPDGV-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080B-MAPDGV-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080B-MAPDGV-E?
AT25080B-MAPDGV-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080B-MAPDGV-E 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 AT25080B-MAPDGV-E?
For technical support, including AT25080B-MAPDGV-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080B-MAPDGV-E requirements.
6.How does Aetrix verify that AT25080B-MAPDGV-E is sourced from the original manufacturer or authorized distributors?
All AT25080B-MAPDGV-E 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 AT25080B-MAPDGV-E meets industry standards.
7.What is the process for return or replacement of AT25080B-MAPDGV-E?
All AT25080B-MAPDGV-E units undergo pre-shipment inspection (PSI). If there is an issue with AT25080B-MAPDGV-E, 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 AT25080B-MAPDGV-E part is unused and in its original packaging.
Return procedure for AT25080B-MAPDGV-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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