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Microchip Technology 25LC080C-E/P
- Part No.:
- 25LC080C-E/P
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
25LC080C-E/P.pdf
- Description:
- IC EEPROM 8KBIT SPI 10MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,928
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Product details
Overview
25LC080C-E/P from Microchip Technology is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 16-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 for nonvolatile parameter storage in automotive engine control units requiring AEC-Q100-aligned reliability.
For engineers reviewing the 25LC080C-E/P datasheet, 25LC080C-E/P pinout, 25LC080C-E/P application, or 25LC080C-E/P equivalent, key selection criteria include VCC range compatibility (2.5–5.5V), 16-byte page write limit, HOLD/CS timing margins at 125°C, and WPEN-enabled hardware write-protection behavior under brown-out conditions.
Technical Context
The 25LC080C-E/P implements a standard SPI Mode 0,0 interface with separate SI (data in) and SO (data out) lines, requiring CS low and HOLD high for active operation. Its internal architecture includes a 16-byte page latch, HV generator for EEPROM programming, and status register with WIP, WEL, BP0/BP1, and WPEN bits.
Write operations require explicit WREN instruction followed by WRITE command and address; CS must go high after final data bit to trigger self-timed 5 ms max internal write cycle. Block protection allows selective locking of 0%, 25%, 50%, or 100% of memory array via BP0/BP1 configuration in STATUS register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), sufficient for firmware calibration tables or sensor offset storage in compact embedded nodes |
| Interface | SPI-compatible serial bus (Mode 0,0), enabling direct connection to PIC® MCU SPI peripherals without level-shifting |
| Page Size | 16 bytes - constrains firmware update logic to avoid crossing page boundaries during multi-byte writes |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V - supports high-throughput configuration loading in real-time systems |
| Write Cycle Time | ≤ 5 ms - defines minimum interval between successive page writes; impacts boot-time parameter initialization latency |
| Endurance | > 1 million erase/write cycles - ensures viability for logging applications with daily write events over 27+ years |
| Data Retention | > 200 years at 25°C - guarantees long-term integrity of factory-trimmed coefficients across product lifecycle |
Pinout & Package
25LC080C-E/P is supplied in 8-lead PDIP (Plastic Dual In-Line Package) with 300 mil body width, RoHS-compliant matte tin lead finish, and industry-standard pin 1 index notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS | Chip Select Input | Active-low enable; falling edge initiates instruction decode; rising edge triggers internal write if valid sequence completed |
| 2: SO | Serial Data Output | Tri-state open-drain output; data valid after SCK falling edge; high-impedance when CS high or HOLD low |
| 3: WP | Write-Protect Pin | Hardware lock control - only active when WPEN bit = 1; prevents STATUS register writes when pulled low |
| 4: VSS | Ground Reference | Primary return path for all I/O and core circuitry; requires low-impedance PCB plane for noise immunity |
| 5: SI | Serial Data Input | Data latched on SCK rising edge; accepts instruction, address, and write data MSB-first |
| 6: SCK | Serial Clock Input | Synchronizes all transfers; timing parameters (Tsu, THD, TLO, THI) tighten at lower VCC voltages |
| 7: HOLD | Hold Input | Pauses ongoing SPI transaction when pulled low during SCK low; resumes on next SCK low-to-high if CS remains low |
| 8: VCC | Supply Voltage | 2.5–5.5V operating range; powers internal charge pump for EEPROM programming; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Selectively locks 0%, 25%, 50%, or 100% of memory array via BP0/BP1 bits - enables secure bootloader partitioning |
| Power-On Write Disable | WEL bit resets at power-up - prevents accidental writes during supply ramp; requires explicit WREN before any write |
| HOLD Functionality | Interrupt-safe pause/resume of SPI transfers - allows host MCU to service higher-priority ISRs without retransmitting commands |
| Automotive Temperature Range | −40°C to +125°C operation - qualified for under-hood automotive modules per AEC-Q100 stress test requirements |
| ESD Robustness | > 4 kV HBM - sustains handling and board-level ESD events without latch-up or parametric shift |
Applications
| Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Storing trim values for oxygen sensor linearization and fuel injection timing offsets across vehicle lifetime. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed during ECU boot and runtime recalibration sequences. Use Value: Enables field-updatable calibration without requiring flash reprogramming; retains data through 15+ year vehicle service life. | Use Scenario: Holding module-specific configuration (e.g., analog input scaling, alarm thresholds) in distributed I/O nodes. IC Role / Device Role / Timing Role: SPI-configurable parameter bank supporting hot-swap reconfiguration without controller reboot. Use Value: Eliminates need for external microcontroller-based configuration storage; reduces BOM count and firmware complexity. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Recording dose history, error logs, and user-defined delivery profiles with tamper-resistant write protection. IC Role / Device Role / Timing Role: Secure audit trail storage with hardware-enforced write-lock during therapy delivery. Use Value: Meets IEC 62304 software safety requirements for Class C devices via deterministic write-disable behavior. | Use Scenario: Storing tariff schedules, meter calibration constants, and firmware update metadata in utility-grade meters. IC Role / Device Role / Timing Role: High-reliability parameter vault accessible over isolated RS-485 interface via host MCU SPI bridge. Use Value: Guarantees >200-year data retention under elevated ambient temperatures in outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080D-E/P | 32-byte page size vs. 16-byte; identical voltage/temp specs and pinout | Better suited for burst-write intensive applications (e.g., firmware patch storage); requires updated page-boundary checking logic | Select when higher write throughput is prioritized over legacy code compatibility |
| AT25080B-MAHL-T | Same 8 Kbit density and SPI interface; 2.5–5.5V VCC; but only industrial temp (−40°C to +85°C), no automotive grade | Not qualified for under-hood automotive use; lacks E-temp screening and AEC-Q100 documentation | Acceptable for cost-sensitive industrial designs where extended temperature is not required |
Compared with 25LC080D-E/P, the 25LC080C-E/P trades write efficiency for backward compatibility with legacy 16-byte page firmware; versus AT25080B-MAHL-T, it delivers certified automotive reliability at marginally higher unit cost but eliminates qualification risk in Tier-1 supply chains.
Availability
25LC080C-E/P is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC configuration storage, and medical device audit logging requiring stable component supply across extended product lifecycles.
Supply support for 25LC080C-E/P 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 25LC080C-E/P belongs to Microchip's 25XX080C/D family of SPI EEPROMs, designed specifically for robust, low-power nonvolatile data storage in harsh environments where extended temperature operation and deterministic write protection are mandatory.
FAQ
What is the maximum clock frequency supported by the 25LC080C-E/P?
The 25LC080C-E/P 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 part), it would be 3 MHz. These limits ensure reliable setup/hold timing for SI/SO signals across its specified operating range.
Does the 25LC080C-E/P require external pull-up resistors on its SO or SI lines?
No, the 25LC080C-E/P does not require external pull-ups on SO or SI. The SO pin is actively driven and tri-stated when not selected; SI is CMOS input with negligible leakage. Pull-ups may be added for noise immunity in electrically noisy environments, but they are not functionally required per the datasheet AC/DC specifications.
How does hardware write protection work on the 25LC080C-E/P?
Hardware write protection on the 25LC080C-E/P activates only when both the WP pin is low AND the WPEN bit in the STATUS register is set to 1. When enabled, it blocks writes to nonvolatile STATUS register bits (BP0, BP1, WPEN) but allows normal memory reads and writes. This dual-condition design prevents accidental lockout during system bring-up.
What happens to the write enable latch after a successful write operation on the 25LC080C-E/P?
After a successful WRITE instruction completes - including the internal 5 ms write cycle - the write enable latch (WEL bit) is automatically reset to 0. This means each write operation must be preceded by a fresh WREN instruction, preventing unintended writes due to latch persistence across power cycles or partial command sequences.
Can the 25LC080C-E/P be used in systems powered by 3.3V supplies?
Yes, the 25LC080C-E/P operates reliably from 2.5V to 5.5V, making it fully compatible with standard 3.3V logic systems. At 3.3V, its maximum clock frequency is 5 MHz (since 3.3V falls within the 2.5V–4.5V range), and all DC/AC timing parameters remain within specification - confirmed in Tables 1-1 and 1-2 of DS22151B.
25LC080C-E/P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
25LC080C-E/P FAQ
1.How can I place an order for 25LC080C-E/P through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080C-E/P 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 25LC080C-E/P reliable?
The price and inventory of 25LC080C-E/P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC080C-E/P is usually 5 days.
3.What payment methods are accepted for 25LC080C-E/P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080C-E/P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080C-E/P?
25LC080C-E/P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080C-E/P 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 25LC080C-E/P?
For technical support, including 25LC080C-E/P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080C-E/P requirements.
6.How does Aetrix verify that 25LC080C-E/P is sourced from the original manufacturer or authorized distributors?
All 25LC080C-E/P 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 25LC080C-E/P meets industry standards.
7.What is the process for return or replacement of 25LC080C-E/P?
All 25LC080C-E/P units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080C-E/P, 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 25LC080C-E/P part is unused and in its original packaging.
Return procedure for 25LC080C-E/P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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