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Microchip Technology 25LC080DT-E/MNY
- Part No.:
- 25LC080DT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
25LC080DT-E/MNY.pdf
- Description:
- IC EEPROM 8KBIT SPI 10MHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:16,618
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Product details
Overview
25LC080DT-E/MNY from Microchip Technology is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 32-byte page size, and automotive-grade temperature support (−40°C to +125°C). It operates from 2.5V to 5.5V, supports up to 10 MHz clock frequency, and features hardware write protection via WP pin and STATUS register control. It is used for nonvolatile parameter storage in engine control units, battery management systems, and industrial sensor calibration modules.
For engineers reviewing the 25LC080DT-E/MNY datasheet, 25LC080DT-E/MNY pinout, 25LC080DT-E/MNY application, or 25LC080DT-E/MNY equivalent, key selection criteria include automotive temperature rating, 32-byte page write capability, HOLD pin support for interrupt-safe SPI pausing, and hardware/software write-protection granularity (none/¼/½/all array).
Technical Context
The 25LC080DT-E/MNY implements a standard SPI Mode 0,0 interface with separate SI (data-in) and SO (data-out) lines, requiring CS, SCK, SI, SO, WP, HOLD, VCC, and VSS. Its internal architecture includes a 16-bit address pointer, page latches, and a high-voltage generator for EEPROM programming.
Write operations require explicit WREN instruction followed by WRITE command; page writes are limited to 32 bytes within a single physical page boundary (000h–01Fh, 020h–03Fh, etc.). The STATUS register provides real-time WIP and WEL status and enables configurable block protection via BP0/BP1 bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), sufficient for firmware configuration tables or sensor calibration coefficients in compact embedded systems. |
| Page Size | 32 bytes - enables efficient bulk writes without crossing page boundaries; requires software alignment to 32-byte offsets. |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V - supports high-speed SPI communication with modern MCUs while maintaining timing margin. |
| Write Cycle Time | ≤5 ms - deterministic erase/write latency critical for time-constrained system initialization or fault logging. |
| Endurance | >1 million erase/write cycles - ensures reliable operation over 10+ years in automotive duty cycles with frequent parameter updates. |
| Data Retention | >200 years at +25°C - guarantees long-term integrity of stored calibration data without refresh. |
| Temp Range | −40°C to +125°C (Automotive E grade) - qualified for under-hood and powertrain applications per AEC-Q100 stress requirements. |
Pinout & Package
25LC080DT-E/MNY is housed in an 8-lead 2×3 mm TDFN package (MN suffix), RoHS-compliant and Pb-free, with wettable flank leads for automated optical inspection. Pin 1 is marked by a laser-etched dot in the top-left corner of the package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable; must be held low for entire SPI transaction; rising edge initiates internal write cycle after valid write sequence. |
| SO (Pin 2) | Serial Data Output | Tri-state open-drain output; data shifted out on falling edge of SCK; high-impedance when CS high or HOLD low. |
| WP (Pin 3) | Hardware Write-Protect | Low-active pin that, when enabled via WPEN bit, blocks writes to STATUS register nonvolatile bits only. |
| VSS (Pin 4) | Ground Reference | Primary return path for all internal circuitry; must be connected before VCC during power-up sequencing. |
| SI (Pin 5) | Serial Data Input | Latches instruction, address, and data on rising edge of SCK; accepts MSB-first 8-bit commands per SPI protocol. |
| SCK (Pin 6) | Serial Clock Input | Synchronizes all SPI transfers; rising edge clocks data into device, falling edge clocks data out of SO. |
| HOLD (Pin 7) | Communication Pause | Active-low; suspends ongoing SPI transfer without resetting state; allows host MCU to service higher-priority interrupts. |
| VCC (Pin 8) | Supply Voltage | 2.5V–5.5V operating range; internal regulation ensures stable EEPROM programming voltage across input variation. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Temperature Grade | Qualified for −40°C to +125°C operation, enabling use in engine control, transmission, and ADAS modules without derating. |
| 32-Byte Page Write | Double the page buffer of 'C' variants - reduces number of required write cycles by 50% for 64-byte configuration blocks. |
| HOLD Pin Functionality | Enables atomic SPI pause/resume without retransmission - essential for deterministic real-time systems with interrupt latency constraints. |
| Configurable Block Protection | BP0/BP1 bits allow selective write-protection of upper ¼, upper ½, or full memory array - prevents accidental corruption of critical boot parameters. |
| Power-On Write Disable | Write enable latch resets at power-up, eliminating risk of spurious writes during supply ramp-up or brownout conditions. |
Applications
| Engine Control Unit (ECU) Calibration Storage | Battery Management System (BMS) Safety Parameters |
|---|---|
Use Scenario: Storing fuel map coefficients, ignition timing offsets, and OBD-II diagnostic thresholds that must survive vehicle shutdown and retain accuracy over 15+ years. IC Role / Device Role / Timing Role: Nonvolatile configuration memory interfaced via SPI to 32-bit automotive MCU; accessed during cold start and runtime recalibration. Use Value: Automotive temperature rating and >200-year data retention ensure calibration integrity across full vehicle lifecycle without periodic refresh. | Use Scenario: Holding cell balancing thresholds, thermal cutoff limits, and SOC/SOH history logs in high-voltage EV battery packs exposed to wide ambient swings. IC Role / Device Role / Timing Role: Fault-tolerant parameter store with hardware write protection; accessed during pack initialization and safety-critical fault recovery sequences. Use Value: WP pin + STATUS register BP bits prevent unauthorized or erroneous overwrite of safety-critical thresholds during field updates or diagnostics. |
| Industrial PLC I/O Module Configuration | Medical Infusion Pump Dosing Profiles |
Use Scenario: Saving channel-specific scaling factors, alarm setpoints, and communication protocol settings in modular automation I/O terminals deployed in factory environments. IC Role / Device Role / Timing Role: SPI-configurable memory mapped to MCU's peripheral address space; read at power-on and updated via HMI or remote firmware update. Use Value: 32-byte page write minimizes update time for multi-parameter module configurations, improving commissioning efficiency. | Use Scenario: Storing drug-specific dosing algorithms, maximum flow rates, and clinician authorization keys in Class II medical devices requiring traceable parameter history. IC Role / Device Role / Timing Role: Secure, tamper-evident storage with write-enable latch and status monitoring; accessed only during authorized setup or maintenance mode. Use Value: >1M endurance supports daily dose log writes over 10+ years of clinical use without wear-out failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080D-I/MNY | Industrial temp range (−40°C to +85°C); identical electrical specs and pinout. | Not qualified for under-hood or powertrain locations requiring AEC-Q100 E-grade reliability. | Select when cost-sensitive industrial or consumer applications do not require extended temperature operation. |
| AT25DF081-MAHN-T | 8 Mbit density, quad SPI interface, 3V-only supply (2.7–3.6V); no HOLD pin; different command set. | Designed for code shadowing or firmware storage, not parameter EEPROM replacement; lacks page-write flexibility and hardware WP. | Choose only if migrating to flash-based storage with higher density and faster sequential reads - not a drop-in substitute. |
Compared with 25LC080D-I/MNY, the 25LC080DT-E/MNY adds automotive qualification and extended high-temp operation without trade-offs in speed or endurance; versus AT25DF081-MAHN-T, it offers true EEPROM behavior (byte-write, no erase-before-write) and deterministic 5 ms writes ideal for parameter storage.
Availability
25LC080DT-E/MNY is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and medical device manufacturing requiring stable component supply across extended product lifecycles.
Supply support for 25LC080DT-E/MNY 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 Inc. is a leading provider of microcontroller, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 25LC080DT-E/MNY belongs to Microchip's 25XX080 family of SPI EEPROMs, designed specifically for robust, low-power nonvolatile storage in automotive and industrial environments where data integrity and long-term reliability are mission-critical.
FAQ
What is the maximum clock frequency supported by the 25LC080DT-E/MNY?
The 25LC080DT-E/MNY supports up to 10 MHz SPI clock frequency when VCC is 4.5V–5.5V. At 2.5V–4.5V, max clock drops to 5 MHz, and at 1.8V–2.5V (not applicable here), it would be 3 MHz. This graded timing ensures reliable operation across its specified 2.5V–5.5V supply range. The 25LC080DT-E/MNY datasheet specifies these AC characteristics in Table 1-2.
Does the 25LC080DT-E/MNY support page write operations, and what is the page size?
Yes, the 25LC080DT-E/MNY supports page write operations with a fixed 32-byte page size, as confirmed in the Device Selection Table and functional description. This 'D' variant differs from the 'C' version (16-byte page) and enables more efficient bulk writes. The 25LC080DT-E/MNY requires software to align writes within 32-byte boundaries to avoid wraparound.
What is the purpose of the HOLD pin on the 25LC080DT-E/MNY, and how is it used?
The HOLD pin on the 25LC080DT-E/MNY pauses ongoing SPI communication without resetting the internal state, allowing the host MCU to service higher-priority interrupts. It must be asserted low while SCK is low and released while SCK is low to resume. The 25LC080DT-E/MNY enters high-impedance on SI/SO during HOLD, preserving bus integrity.
How does hardware write protection work on the 25LC080DT-E/MNY?
Hardware write protection on the 25LC080DT-E/MNY requires both the WP pin low AND the WPEN bit (bit 7 of STATUS register) set high. When active, it blocks writes to nonvolatile STATUS register bits only - memory array writes remain permitted if WEL is set. The 25LC080DT-E/MNY allows flexible protection schemes via BP0/BP1 bits independent of WP pin state.
What package type is used for the 25LC080DT-E/MNY, and what does the 'MN' suffix indicate?
The 25LC080DT-E/MNY uses an 8-lead 2×3 mm TDFN package, denoted by the 'MN' suffix per Microchip's packaging nomenclature. This ultra-compact, surface-mount package features wettable flanks for solder joint inspection and is RoHS-compliant. The 'T' in the part number indicates tape-and-reel packaging, and 'E' denotes the automotive temperature grade.
25LC080DT-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN 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:
- 10 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
25LC080DT-E/MNY FAQ
1.How can I place an order for 25LC080DT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080DT-E/MNY 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 25LC080DT-E/MNY reliable?
The price and inventory of 25LC080DT-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC080DT-E/MNY is usually 5 days.
3.What payment methods are accepted for 25LC080DT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080DT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080DT-E/MNY?
25LC080DT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080DT-E/MNY 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 25LC080DT-E/MNY?
For technical support, including 25LC080DT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080DT-E/MNY requirements.
6.How does Aetrix verify that 25LC080DT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 25LC080DT-E/MNY 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 25LC080DT-E/MNY meets industry standards.
7.What is the process for return or replacement of 25LC080DT-E/MNY?
All 25LC080DT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080DT-E/MNY, 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 25LC080DT-E/MNY part is unused and in its original packaging.
Return procedure for 25LC080DT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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