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Microchip Technology 25LC080CT-E/MNY
- Part No.:
- 25LC080CT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
25LC080CT-E/MNY.pdf
- Description:
- IC EEPROM 8KBIT SPI 10MHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,046
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Product details
Overview
25LC080CT-E/MNY from Microchip Technology is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 16-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 delivers 5 mA read/write current at 5.5V - used for nonvolatile configuration storage in engine control units and ADAS sensor modules.
For engineers reviewing the 25LC080CT-E/MNY datasheet, 25LC080CT-E/MNY pinout, 25LC080CT-E/MNY application, or 25LC080CT-E/MNY equivalent, key selection criteria include automotive temperature rating, hardware write-protection via WP pin, HOLD functionality for interrupt-safe SPI pauses, and guaranteed 1 million erase/write cycles with >200-year data retention.
Technical Context
The 25LC080CT-E/MNY implements a standard SPI Mode 0,0 interface with separate SI (data-in) and SO (data-out) lines, requiring CS, SCK, and HOLD for full protocol compliance. Its internal architecture includes a write-enable latch, STATUS register with BP0/BP1 block protection bits, and hardware-based WPEN-controlled write protection.
It features self-timed internal write cycles (≤5 ms), sequential read with automatic address rollover, and high-impedance SO during HOLD assertion or CS deassertion - enabling multi-device SPI bus sharing without external tri-state logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit array), sufficient for firmware boot flags, calibration tables, and device ID storage in automotive ECUs. |
| Page Size | 16 bytes - constrains write bursts to single-page boundaries; crossing pages wraps data instead of advancing, requiring software page-boundary checks. |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V - enables fast configuration loading in real-time systems without SPI clock divider overhead. |
| Write Endurance | ≥1 million erase/write cycles - supports frequent logging or parameter updates in telematics gateways over 10+ years. |
| Data Retention | >200 years at +25°C - ensures long-term integrity of safety-critical calibration data without refresh mechanisms. |
| Operating Temp | −40°C to +125°C (Automotive E grade) - qualified for under-hood and transmission-control module deployment. |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V microcontroller I/O domains without level-shifting. |
Pinout & Package
25LC080CT-E/MNY is housed in an 8-lead 2×3 mm TDFN package (MN suffix), with wettable flank leads for automated optical inspection. The package is Pb-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable: pulls device into active mode; rising edge after WRITE sequence initiates internal 5 ms write cycle. |
| SO (Pin 2) | Serial Data Output | Tri-states when CS high or HOLD low; outputs data on falling SCK edge during READ operations. |
| WP (Pin 3) | Hardware Write-Protect | Blocks STATUS register writes only when WPEN bit = 1 and WP = low; no effect on memory reads or active writes. |
| VSS (Pin 4) | Ground Reference | Primary return path for all I/O and core logic; must be low-impedance to meet 4 kV ESD spec. |
| SI (Pin 5) | Serial Data Input | Latches instructions, addresses, and data on rising SCK edge; accepts 8-bit opcodes (e.g., 0x03 for READ). |
| SCK (Pin 6) | Serial Clock Input | Synchronizes all SPI transfers; timing parameters (e.g., TCSS, THD) scale with VCC voltage tier. |
| HOLD (Pin 7) | Communication Pause | Halts ongoing SPI transfer when pulled low while SCK = low; resumes from same byte position on release. |
| VCC (Pin 8) | Supply Voltage | Power input for core and I/O; internal regulation supports stable operation across 2.5–5.5V with ≤5 µA standby current at +125°C. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Temperature Grade | Qualified for −40°C to +125°C operation per AEC-Q100 stress test requirements, enabling use in powertrain and chassis modules. |
| Hardware Write Protection | WP pin + WPEN bit combination provides tamper-resistant lock for critical STATUS register bits, preventing accidental firmware corruption. |
| HOLD Functionality | Enables deterministic SPI pause/resume without retransmission - essential for servicing time-critical MCU interrupts in real-time control loops. |
| Block Write Protection | BP0/BP1 bits allow selective locking of 0%, 25%, 50%, or 100% of memory array, supporting layered security for bootloader vs. application data partitions. |
| Low-Power Standby | 1 µA max standby current at +85°C ensures minimal battery drain in always-on vehicle networks (e.g., CAN FD gateways). |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing trim values, fault codes, and adaptive learning parameters that persist across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed write completion under transient voltage conditions. Use Value: Enables zero-latency recall of calibrated air-fuel ratios and knock thresholds after cold start, meeting ISO 16750-2 load dump immunity requirements. | Use Scenario: Holding camera calibration offsets and radar fusion coefficients updated during vehicle service or OTA updates. IC Role / Device Role / Timing Role: Secure, field-updatable parameter store with hardware write-lock for safety-critical registers. Use Value: Prevents unauthorized modification of ADAS sensor alignment data via WP pin grounding, satisfying ISO 26262 ASIL-B functional safety constraints. |
| Telematics Control Unit (TCU) | Electric Vehicle Battery Management System (BMS) |
Use Scenario: Logging cellular modem credentials, SIM profiles, and firmware version history across power cycles. IC Role / Device Role / Timing Role: High-endurance data logger interfaced via SPI to application processor with HOLD support for LTE interrupt handling. Use Value: Sustains 10,000+ daily write cycles for 3+ years (exceeding 1M endurance spec), eliminating need for wear-leveling firmware. | Use Scenario: Storing cell balancing thresholds and thermal derating curves validated during factory calibration. IC Role / Device Role / Timing Role: Tamper-evident configuration vault with BP1/BP0-protected top 512 bytes reserved for safety-critical BMS parameters. Use Value: Ensures immutable storage of ISO 6469-1 mandated shutdown thresholds, even during 12V supply brownouts or CAN bus faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080DT-E/MNY | 32-byte page size vs. 16-byte; identical voltage, temp, and pinout. | Better suited for burst-write applications (e.g., firmware patch storage) where larger page buffers reduce SPI transaction count. | Select 25LC080DT-E/MNY only if host firmware supports 32-byte page boundary management and requires higher write throughput. |
| AT25DF041A-SHN-T | 4 Mbit density, quad SPI interface, 3.3V-only (2.7–3.6V), no HOLD pin. | Targets high-speed code shadowing; lacks automotive temp rating and hardware write-protection pin. | Choose AT25DF041A-SHN-T only for non-automotive, 3.3V systems needing faster random access - not a drop-in replacement. |
Compared with 25LC080DT-E/MNY and AT25DF041A-SHN-T, the 25LC080CT-E/MNY uniquely balances automotive qualification, hardware write protection, HOLD functionality, and 16-byte page granularity - making it optimal for safety-critical, interrupt-sensitive, and field-serviceable embedded systems.
Availability
25LC080CT-E/MNY is available at Aetrix Electronics and suitable for automotive control modules, ADAS sensor nodes, telematics gateways, and battery management systems requiring stable component supply across extended product lifecycles.
Supply support for 25LC080CT-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 microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 25LC080C/D family was designed specifically for automotive and industrial applications demanding high reliability, extended temperature operation, and robust SPI EEPROM functionality in space-constrained PCB layouts.
FAQ
What is the maximum clock frequency supported by the 25LC080CT-E/MNY?
The 25LC080CT-E/MNY supports up to 10 MHz SPI clock frequency when VCC is 4.5V to 5.5V. At 2.5V ≤ VCC < 4.5V, the maximum clock drops to 5 MHz, and at 1.8V ≤ VCC < 2.5V (not applicable to this E-grade part), it would be 3 MHz. These limits ensure setup/hold timing margins are met across automotive temperature extremes.
Does the 25LC080CT-E/MNY support hardware write protection?
Yes, the 25LC080CT-E/MNY supports hardware write protection via the WP pin combined with the WPEN bit in its STATUS register. When WPEN = 1 and WP = low, writes to nonvolatile STATUS register bits are blocked - protecting critical configuration such as block protection settings. Memory array writes remain unaffected unless BP bits are set.
What is the page size of the 25LC080CT-E/MNY, and why does it matter?
25LC080CT-E/MNY has a 16-byte page size. This defines the maximum number of bytes that can be written in a single page-write command without crossing a physical boundary. Crossing boundaries causes wraparound within the same page, risking data corruption - so host firmware must validate address alignment before initiating multi-byte writes.
How does the HOLD pin function in the 25LC080CT-E/MNY?
The HOLD pin in the 25LC080CT-E/MNY suspends ongoing SPI communication without resetting the internal state. When asserted low while SCK is low, SI/SO/SCK inputs are ignored and SO goes high-impedance. Release (HOLD high while SCK low) resumes from the exact bit position - enabling deterministic interrupt handling in time-critical microcontroller applications.
Is the 25LC080CT-E/MNY qualified for automotive applications?
Yes, the 25LC080CT-E/MNY carries the 'E' temperature grade suffix, certifying operation from −40°C to +125°C and compliance with automotive reliability standards. Its packaging (2×3 mm TDFN-MN), 4 kV ESD rating, and 1 million endurance cycles meet AEC-Q100 requirements for use in engine control, ADAS, and body electronics modules.
25LC080CT-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)
25LC080CT-E/MNY FAQ
1.How can I place an order for 25LC080CT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080CT-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 25LC080CT-E/MNY reliable?
The price and inventory of 25LC080CT-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 25LC080CT-E/MNY is usually 5 days.
3.What payment methods are accepted for 25LC080CT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080CT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080CT-E/MNY?
25LC080CT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080CT-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 25LC080CT-E/MNY?
For technical support, including 25LC080CT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080CT-E/MNY requirements.
6.How does Aetrix verify that 25LC080CT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 25LC080CT-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 25LC080CT-E/MNY meets industry standards.
7.What is the process for return or replacement of 25LC080CT-E/MNY?
All 25LC080CT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080CT-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 25LC080CT-E/MNY part is unused and in its original packaging.
Return procedure for 25LC080CT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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