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Microchip Technology AT25080B-SSPDGV-T
- Part No.:
- AT25080B-SSPDGV-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080B-SSPDGV-T.pdf
- Description:
- IC EEPROM 8KBIT SPI 5MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,317
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Product details
Overview
AT25080B-SSPDGV-T from Microchip Technology is an AEC-Q100 qualified 8 Kbit SPI Serial EEPROM organized as 1,024 × 8 bits, operating from 1.7V to 5.5V across -40°C to +125°C (Grade 1), with 5 MHz max clock rate, 32-byte page write, and hardware/software write protection for automotive body control modules, ADAS sensor calibration storage, and engine ECU configuration memory.
For engineers reviewing the AT25080B-SSPDGV-T datasheet, AT25080B-SSPDGV-T pinout, AT25080B-SSPDGV-T application, or AT25080B-SSPDGV-T equivalent, key selection criteria include Grade 1 automotive temperature compliance, SOIC-8 package footprint, SPI Mode 0/3 compatibility, 1,000,000 write endurance, and block-level array protection via STATUS register BP1/BP0 bits.
Technical Context
The AT25080B-SSPDGV-T implements a synchronous SPI slave interface with fixed MSb-first data framing, rising-edge input sampling on SI, and falling-edge output valid on SO. It supports dual SPI modes (0 and 3) with identical timing but differing SCK idle polarity - requiring matching idle state before and after CS assertion.
Internal architecture includes a dedicated high-voltage generation circuit for EEPROM programming, a pause-capable serial control path managed by HOLD/CS interaction, and nonvolatile STATUS register bits (WPEN, BP1/BP0, WEL, RDY/BSY) that govern write enable state, protection granularity, and busy signaling without external polling overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 8 Kbits (1,024 × 8), sufficient for firmware patch metadata, sensor trim coefficients, or secure boot keys in compact ECUs |
| Supply voltage range | 1.7V–5.5V (Grade 3) / 2.5V–5.5V (Grade 1), enabling direct interface with 1.8V, 3.3V, and 5V microcontrollers without level shifters |
| Max clock frequency | 5 MHz at VCC = 5V, supporting ≤200 ns instruction latency for time-critical configuration reads during boot |
| Write endurance | 1,000,000 cycles, validated per AEC-Q100 stress testing for 15-year vehicle lifetime with daily reconfiguration |
| Data retention | 100 years at 55°C, ensuring calibration data integrity over full automotive service life without refresh |
| Page size | 32 bytes, minimizing write latency versus byte-write while avoiding excessive bus occupancy in CAN/FlexRay gateway loggers |
| Operating temperature | -40°C to +125°C (Grade 1), qualified per AEC-Q100 Rev G for under-hood and transmission control unit deployment |
Pinout & Package
AT25080B-SSPDGV-T uses an 8-lead SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch) with gull-wing leads and standard JEDEC MS-012AC footprint. Pin 1 is marked with a beveled corner or dot.
| 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; data valid 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 | Return path for VCC and all I/O; must connect directly to system ground plane to minimize noise coupling into SO/SI |
| SI | Serial Data Input | CMOS input latching on rising SCK edge; accepts opcodes, addresses, and data with MSb first |
| SCK | Serial Clock | Asynchronous master-generated clock; idle state must match SPI mode (low for Mode 0, high for Mode 3) |
| HOLD | Suspend Serial Input | Pauses ongoing SPI transfer without resetting internal state; requires SCK low to assert/deassert; no effect on active write cycles |
| VCC | Device Power Supply | 1.7–5.5V supply; monotonic ramp required ≥0.1 V/µs; POR threshold at 1.5V ensures reliable reset before command acceptance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C operation with HTOL, TC, and ESD testing - mandatory for powertrain and chassis ECUs |
| Block write protection (BP1/BP0) | Configurable 0%, 25%, 50%, or 100% array lock via STATUS register - prevents accidental overwrite of critical calibration sectors |
| Hardware + software write protection | WP pin disables STATUS writes when WPEN=1; WRDI/WREN instructions control WEL bit - layered security against firmware bugs |
| Self-timed write cycle ≤5 ms | Eliminates need for external timeout logic; RDY/BSY bit allows polling-free interrupt-driven completion detection |
| 32-byte page write mode | Reduces average write time by 31× vs. byte-write for sequential updates (e.g., OTA parameter tables), improving system responsiveness |
| Green RoHS-compliant packaging | Lead-free, halide-free SOIC-8 meets automotive ELV Directive and IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) |
Applications
| ADAS Sensor Calibration Storage | Engine Control Unit (ECU) Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain values for radar and camera sensors across vehicle production variants. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding calibration constants accessed during cold boot and periodic self-test. Use Value: Enables one-time programming at end-of-line test with 100-year retention, eliminating recalibration labor during service. |
Use Scenario: Holding adaptive learning parameters (e.g., fuel trim, ignition timing offsets) updated dynamically during vehicle operation. IC Role / Device Role / Timing Role: High-endurance data logger interfaced to MCU via SPI, writing 32-byte pages during idle engine cycles. Use Value: 1M write cycles support >10 years of daily adaptation updates without wear-out failure in Tier 1 powertrain systems. |
| Body Control Module (BCM) Settings | Infotainment System Secure Boot Keys |
Use Scenario: Persisting user preferences (seat position, mirror angle, lighting profiles) and door/window actuator limits. IC Role / Device Role / Timing Role: Low-power SPI slave with 0.1 µA standby current at 1.7V, activated only during setup or recall events. Use Value: Sub-µA quiescent draw extends battery life in parked vehicle scenarios where BCM remains partially powered. |
Use Scenario: Storing immutable cryptographic keys used to verify signed firmware images during boot sequence. IC Role / Device Role / Timing Role: Tamper-resistant storage with hardware WP pin tied high and BP1/BP0 set to 11 (full array lock) post-programming. Use Value: Prevents unauthorized key modification via software exploits or debugger access - meeting ISO/SAE 21434 hardware security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DFMN6TP | STMicroelectronics 8 Kbit SPI EEPROM, same SOIC-8 package, 5 MHz speed, but only AEC-Q100 Grade 3 (-40°C to +85°C) | Limited to cabin electronics (HVAC, infotainment) due to lower max temperature rating | Select when Grade 1 thermal performance is not required and ST's long-term supply commitment is preferred |
| BR24G08FJ-WE2 | Rohm 8 Kbit SPI EEPROM, SOIC-8, 1.7–5.5V, but lacks HOLD pin and supports only SPI Mode 0 | No suspend capability; unsuitable for systems requiring concurrent SPI bus sharing with other peripherals | Choose for cost-sensitive body electronics where HOLD functionality is unused and design simplicity is prioritized |
Compared with M95080-DFMN6TP and BR24G08FJ-WE2, the AT25080B-SSPDGV-T uniquely delivers Grade 1 automotive temperature operation, dual-mode SPI compatibility, and functional HOLD support - making it the only option qualified for under-hood ECU use with real-time bus arbitration needs.
Availability
AT25080B-SSPDGV-T is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor calibration storage, and engine ECU configuration requiring stable component supply across extended product lifecycles.
Supply support for AT25080B-SSPDGV-T 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 ISO/TS 16949-certified automotive manufacturing and global AEC-Q100 validation labs.
The AT25080B-SSPDGV-T belongs to Microchip's automotive-grade serial EEPROM product line, designed specifically for mission-critical nonvolatile storage in harsh-temperature automotive subsystems where data integrity and long-term reliability are mandated.
FAQ
What automotive qualification does the AT25080B-SSPDGV-T meet?
The AT25080B-SSPDGV-T is fully qualified to AEC-Q100 Grade 1 standards, including stress testing for high-temperature operation (-40°C to +125°C), humidity, thermal cycling, and ESD. This certification validates its suitability for powertrain, chassis, and ADAS applications where ambient temperatures exceed 105°C. The AT25080B-SSPDGV-T datasheet documents full test reports per Rev G requirements.
Does the AT25080B-SSPDGV-T support both SPI Mode 0 and Mode 3?
Yes, the AT25080B-SSPDGV-T supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=0). In both modes, data is sampled on the rising edge of SCK and output on the falling edge. The key requirement is that the SCK idle state must match before and after CS assertion - low for Mode 0, high for Mode 3. The AT25080B-SSPDGV-T does not support Modes 1 or 2.
How is write protection implemented on the AT25080B-SSPDGV-T?
The AT25080B-SSPDGV-T provides dual-layer write protection: hardware via the WP pin (when WPEN=1 in STATUS register) and software via BP1/BP0 bits controlling 0%, 25%, 50%, or 100% array lock. WP only blocks STATUS register writes - memory writes require both WEL=1 and unprotected BP bits. The AT25080B-SSPDGV-T defaults with WPEN=0 and BP1/BP0=00 (no protection) at shipment.
What is the maximum write cycle time for the AT25080B-SSPDGV-T?
The AT25080B-SSPDGV-T guarantees a maximum write cycle time of 5 ms for both byte and page writes, measured from the final SCK edge of the WRITE instruction to RDY/BSY bit clearing. This self-timed internal erase/program sequence eliminates external timing dependencies. The AT25080B-SSPDGV-T STATUS register RDY/BSY bit provides precise completion signaling without polling overhead.
Can the AT25080B-SSPDGV-T operate at 1.7V supply voltage?
Yes, the AT25080B-SSPDGV-T operates down to 1.7V (Grade 3 specification), supporting direct interface with 1.8V microcontrollers and ultra-low-power systems. At 1.7V, maximum clock frequency is reduced to 1 MHz per AC characteristics, and standby current is specified at 0.1 µA. The AT25080B-SSPDGV-T maintains full functionality including HOLD, WP, and STATUS register access across the entire 1.7–5.5V range.
AT25080B-SSPDGV-T 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:
- 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-SOIC
AT25080B-SSPDGV-T FAQ
1.How can I place an order for AT25080B-SSPDGV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080B-SSPDGV-T 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-SSPDGV-T reliable?
The price and inventory of AT25080B-SSPDGV-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25080B-SSPDGV-T is usually 5 days.
3.What payment methods are accepted for AT25080B-SSPDGV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080B-SSPDGV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080B-SSPDGV-T?
AT25080B-SSPDGV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080B-SSPDGV-T 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-SSPDGV-T?
For technical support, including AT25080B-SSPDGV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080B-SSPDGV-T requirements.
6.How does Aetrix verify that AT25080B-SSPDGV-T is sourced from the original manufacturer or authorized distributors?
All AT25080B-SSPDGV-T 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-SSPDGV-T meets industry standards.
7.What is the process for return or replacement of AT25080B-SSPDGV-T?
All AT25080B-SSPDGV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25080B-SSPDGV-T, 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-SSPDGV-T part is unused and in its original packaging.
Return procedure for AT25080B-SSPDGV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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