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Microchip Technology 25LC080DT-E/MS
- Part No.:
- 25LC080DT-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
25LC080DT-E/MS.pdf
- Description:
- IC EEPROM 8KBIT SPI 10MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,850
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Product details
Overview
25LC080DT-E/MS from Microchip Technology is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 32-byte page size, and industrial-automotive 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 in automotive body control modules for storing calibration data and configuration parameters.
For engineers reviewing the 25LC080DT-E/MS datasheet, 25LC080DT-E/MS pinout, 25LC080DT-E/MS application, or 25LC080DT-E/MS equivalent, key selection criteria include its 32-byte page write capability, −40°C to +125°C automotive-grade operation, MSOP-8 package compatibility, and integrated HOLD/CS/WP control for robust SPI bus sharing in safety-critical systems.
Technical Context
The 25LC080DT-E/MS implements a standard SPI Mode 0,0 interface with separate SI (MOSI) and SO (MISO) lines, requiring CS assertion, SCK synchronization, and optional HOLD suspension. Its internal architecture includes a 16-bit address pointer, page latches, and HV generator for EEPROM programming.
Write operations require explicit WREN instruction followed by WRITE command and address; 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 flag visibility and BP0/BP1-controlled block protection of 0%, 25%, 50%, or 100% of memory array.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), sufficient for firmware patch storage or multi-sensor calibration tables in compact ECUs. |
| Interface | SPI-compatible serial bus (Mode 0,0), enabling direct connection to PIC® and ARM-based microcontrollers without protocol translation. |
| Page Size | 32 bytes, allowing efficient bulk parameter updates while avoiding cross-page wrap errors during partial writes. |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V, supporting high-throughput configuration loading in time-constrained boot sequences. |
| Endurance | >1 million erase/write cycles, ensuring reliable logging over 15+ years in telematics event recorders. |
| Data Retention | >200 years at +25°C, guaranteeing long-term integrity of vehicle VIN, security keys, and regulatory compliance settings. |
| Operating Temp | −40°C to +125°C (Automotive E grade), qualified for under-hood engine control units and ADAS domain controllers. |
| VCC Range | 2.5V to 5.5V, compatible with both 3.3V logic domains and legacy 5V automotive power rails. |
Pinout & Package
25LC080DT-E/MS is housed in an 8-lead MSOP package (3.0 mm × 4.4 mm, 0.65 mm pitch), optimized for space-constrained automotive PCBs and compatible with reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip Select Input | Active-low enable signal; must be held low for full SPI transaction; rising edge initiates internal write cycle after valid write sequence. |
| 2 - SO | Serial Data Output | MISO line; outputs memory data on falling edge of SCK; tri-states when CS high or HOLD low. |
| 3 - WP | Hardware Write-Protect Pin | Enables nonvolatile block protection when WPEN bit = 1 and WP = low; prevents accidental STATUS register corruption in field-deployed units. |
| 4 - VSS | Ground Reference | Primary return path for all I/O and core circuitry; requires low-impedance connection to minimize noise coupling into SPI signaling. |
| 5 - SI | Serial Data Input | MOSI line; accepts instructions, addresses, and data on rising edge of SCK; latched only when CS = low and HOLD = high. |
| 6 - SCK | Serial Clock Input | Master-generated clock; defines timing for SI sampling and SO output; must remain low before asserting HOLD to avoid metastability. |
| 7 - HOLD | Transaction Pause Control | Active-low suspend signal; halts ongoing SPI transfer without resetting address pointer, enabling MCU interrupt servicing without data loss. |
| 8 - VCC | Supply Voltage | Power input (2.5–5.5V); internal regulation ensures stable EEPROM programming voltage across full automotive input range. |
Key Features
| Feature | Design Value |
|---|---|
| Self-timed write cycle | ≤5 ms max internal erase/write completion, eliminating need for external timeout polling in deterministic real-time systems. |
| Block write protection | Selectable 0%, 25%, 50%, or 100% array protection via BP0/BP1 bits, enabling secure partitioning of bootloader vs. user-configurable sectors. |
| Power-on write disable | Write enable latch resets at power-up, preventing spurious writes during brown-out or cold-start conditions. |
| HOLD pin functionality | Preserves SPI state during MCU interrupt latency, reducing software overhead for bus arbitration in multi-peripheral designs. |
| Pb-free & RoHS compliance | Meets automotive ELV Directive requirements; MSOP package uses matte tin lead finish for reliable solder joint formation. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing adaptive fuel trim values, misfire counters, and OBD-II diagnostic trouble codes across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed write integrity during engine cranking voltage dips. Use Value: Enables ISO 15765-compliant diagnostics and closed-loop learning without external backup capacitors or supervisory ICs. | Use Scenario: Retaining camera calibration offsets, radar fusion coefficients, and sensor alignment matrices after vehicle shutdown. IC Role / Device Role / Timing Role: High-reliability parameter vault accessed via SPI during boot initialization and runtime recalibration. Use Value: Supports ASIL-B functional safety requirements through >200-year data retention and 1M-cycle endurance under thermal cycling stress. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Holding door lock programming, mirror position presets, and lighting configuration profiles across battery disconnect events. IC Role / Device Role / Timing Role: SPI-configurable memory with hardware WP pin enabling factory programming lockout post-assembly. Use Value: Eliminates need for separate OTP fuses or secure provisioning infrastructure during end-of-line testing. | Use Scenario: Archiving torque sensor zero-point drift compensation and motor phase resistance calibration data over vehicle lifetime. IC Role / Device Role / Timing Role: Automotive-grade EEPROM interfaced directly to EPS MCU's hardware SPI peripheral. Use Value: Ensures steering assist accuracy remains within ISO 26262 ASIL-C error bounds despite 15+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080D-I/MS | Industrial temperature grade (−40°C to +85°C); identical electrical specs and pinout. | Not qualified for under-hood or transmission-control environments requiring 125°C operation. | Select 25LC080D-I/MS only for cabin-mounted modules where ambient temperature stays below 85°C. |
| AT25080B-MAHL-T | Same 8 Kbit capacity and MSOP-8 package; 20 MHz max clock; different STATUS register map and HOLD timing. | Requires firmware adaptation for RDSR/WRSR command handling and HOLD setup/hold time compliance. | Choose AT25080B-MAHL-T only when higher-speed read throughput is prioritized and software validation resources are available. |
Compared with 25LC080D-I/MS, the 25LC080DT-E/MS adds automotive temperature qualification and extended reliability validation, while AT25080B-MAHL-T offers faster clocking but demands interface-level firmware rework - making 25LC080DT-E/MS the optimal drop-in solution for new ECU designs targeting ASIL-B compliance.
Availability
25LC080DT-E/MS is available at Aetrix Electronics and suitable for automotive control units, ADAS domain controllers, and body electronics requiring stable component supply across extended product lifecycles.
Supply support for 25LC080DT-E/MS 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, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and development tools.
The 25LC080DT-E/MS belongs to Microchip's 25XX080C/D family of SPI EEPROMs, designed specifically for automotive and industrial applications demanding high endurance, extended temperature operation, and robust SPI bus integration.
FAQ
What is the maximum clock frequency supported by the 25LC080DT-E/MS?
The 25LC080DT-E/MS supports up to 10 MHz clock frequency when VCC is 4.5V to 5.5V, 5 MHz at 2.5V to <4.5V, and 3 MHz at 1.8V to <2.5V. Since the 25LC080DT-E/MS is rated for 2.5V–5.5V operation, its maximum usable clock is 10 MHz. This enables fast configuration reads during ECU boot without violating AC timing limits such as TCSS, TCSH, and Tsu.
Does the 25LC080DT-E/MS support page write operations, and what is the page size?
Yes, the 25LC080DT-E/MS supports page write operations with a fixed 32-byte page size, as confirmed by the 'D' suffix in its part number and Device Selection Table. Each page spans contiguous addresses (e.g., 000h–01Fh), and crossing a page boundary during a multi-byte write causes wraparound within the same page - a behavior explicitly documented in the 25LC080DT-E/MS functional description.
How does hardware write protection work on the 25LC080DT-E/MS?
Hardware write protection on the 25LC080DT-E/MS requires both the WPEN bit (bit 7 of STATUS register) to be set to '1' and the WP pin (pin 3) driven low. When active, this combination disables writes to nonvolatile STATUS register bits while allowing normal memory reads and writes. The 25LC080DT-E/MS datasheet confirms this dual-condition requirement in Table 2-4 and Section 2.6.
What is the operating temperature range of the 25LC080DT-E/MS, and how is it designated in the part number?
The 25LC080DT-E/MS is rated for −40°C to +125°C (Automotive E grade), as indicated by the 'T-E' suffix in the part number. This is verified in the Device Selection Table and Electrical Characteristics section, where AC/DC specs are explicitly defined for the Automotive (E) temperature range. It is not rated for industrial-only operation.
Is the 25LC080DT-E/MS pin-compatible with other packages in the 25XX080 family?
Yes, the 25LC080DT-E/MS uses the standard 8-pin MSOP footprint shared across the 25XX080C/D family, including 25LC080C-I/MS and 25AA080D-I/MS. Pin functions (CS, SO, WP, VSS, SI, SCK, HOLD, VCC) and ordering match identically per Table 3-1, enabling direct PCB footprint reuse when migrating between temperature grades or voltage ranges - provided layout adheres to MSOP-8 mechanical dimensions.
25LC080DT-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- 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-MSOP
25LC080DT-E/MS FAQ
1.How can I place an order for 25LC080DT-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080DT-E/MS 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/MS reliable?
The price and inventory of 25LC080DT-E/MS 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/MS is usually 5 days.
3.What payment methods are accepted for 25LC080DT-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080DT-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080DT-E/MS?
25LC080DT-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080DT-E/MS 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/MS?
For technical support, including 25LC080DT-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080DT-E/MS requirements.
6.How does Aetrix verify that 25LC080DT-E/MS is sourced from the original manufacturer or authorized distributors?
All 25LC080DT-E/MS 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/MS meets industry standards.
7.What is the process for return or replacement of 25LC080DT-E/MS?
All 25LC080DT-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080DT-E/MS, 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/MS part is unused and in its original packaging.
Return procedure for 25LC080DT-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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