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Microchip Technology 25LC080/P
- Part No.:
- 25LC080/P
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
25LC080/P.pdf
- Description:
- IC EEPROM 8KBIT SPI 2MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,617
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Product details
Overview
25LC080/P from Microchip Technology Inc. is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 2 MHz max clock frequency at 2.5–5.5 V supply, and industrial temperature range (−40°C to +85°C). It features 16-byte page write, hardware write protection via WP pin, and HOLD functionality for interrupt-safe serial communication - used in embedded system configuration storage, sensor calibration data retention, and firmware parameter backup.
For engineers reviewing the 25LC080/P datasheet, 25LC080/P pinout, 25LC080/P application, or 25LC080/P equivalent, this page delivers verified electrical specs, SPI timing constraints, package-confirmed pin functions, block protection behavior, and real-world use cases aligned to the DS21230E revision E specification.
Technical Context
The 25LC080/P implements a standard SPI Mode 0,0 interface with separate SI (data in) and SO (data out) lines, requiring CS low, SCK synchronized rising-edge input latching, and falling-edge output sampling. Its internal architecture includes a status register with WIP, WEL, BP0/BP1, and WPEN bits controlling write enable state and 1/4–full array block protection.
It supports sequential read across address boundaries with automatic rollover from 03FFh to 0000h, and page-write operations limited to 16-byte boundaries (e.g., addresses 0000h–000Fh). Write cycles are self-timed (≤5 ms), and HOLD pin suspension preserves internal state without resetting the command sequence.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), sufficient for bootloader config, device ID, or calibration coefficients in resource-constrained microcontrollers. |
| Interface | SPI-compatible serial bus (Mode 0,0), enabling direct connection to PIC, ARM Cortex-M, and ESP32 SPI peripherals without level-shifting logic. |
| Max Clock Frequency | 2 MHz at VCC = 2.5–4.5 V - sets maximum sustained data throughput at ~200 kB/s for continuous reads. |
| Write Cycle Time | ≤5 ms per internal write - determines minimum delay between page writes and impacts firmware update latency. |
| Endurance & Retention | 1 million erase/write cycles and >200 years data retention - validated for long-life industrial logging and infrequently updated settings storage. |
| VCC Range | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V logic domains, eliminating need for external voltage translators in mixed-supply systems. |
| ESD Protection | ≥4 kV HBM - meets IEC 61000-4-2 Level 2 requirements for board-level robustness in factory and field environments. |
Pinout & Package
25LC080/P is supplied in an 8-pin Plastic Dual In-line Package (PDIP) with 300 mil body width, JEDEC MS-001 compliant footprint, and through-hole mounting. Pin spacing is 0.100" (2.54 mm) pitch; overall dimensions are 0.373" × 0.313" × 0.155" (9.46 mm × 7.94 mm × 3.94 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable: drives device into standby when high; must be low before any instruction; enables multi-device SPI bus sharing. |
| SO (Pin 2) | Serial Data Output | Tri-state open-drain output: data shifted out on SCK falling edge; enters high-Z when CS high or HOLD active. |
| WP (Pin 3) | Write-Protect Control | Hardware lock: disables Status register writes when WPEN=1 and WP=low; allows full memory access when WP=high. |
| VSS (Pin 4) | Ground Reference | Primary return path for all internal circuitry; must be connected to system GND plane with low-impedance trace. |
| SI (Pin 5) | Serial Data Input | CMOS input: latches instruction/address/data on SCK rising edge; requires clean signal with <500 ns setup/hold times. |
| SCK (Pin 6) | Serial Clock Input | Master-generated clock: defines timing for all SPI transactions; rise/fall times ≤2 µs required for reliable operation. |
| HOLD (Pin 7) | Communication Pause | Active-low suspend: halts ongoing SPI transfer without resetting state; must be asserted only when SCK is low. |
| VCC (Pin 8) | Supply Voltage | Power input: accepts 2.5–5.5 V; bypass capacitor (0.1 µF ceramic) required within 10 mm of pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| 16-byte page write | Enables burst programming of up to 16 contiguous bytes per write cycle, reducing total time vs. byte-by-byte writes by up to 8×. |
| Block write protection | Configurable via BP0/BP1 bits to protect none, upper 1/4 (0300h–03FFh), upper 1/2 (0200h–03FFh), or entire array (0000h–03FFh). |
| HOLD pin functionality | Allows host MCU to service higher-priority interrupts mid-transaction without losing SPI context or reinitializing the command sequence. |
| Power-on write disable | Write enable latch resets at power-up, preventing accidental writes during brown-out or reset conditions without explicit WREN command. |
| Low-power operation | 500 nA typical standby current and 3 mA max write current enable battery-backed or energy-harvesting applications. |
Applications
| Industrial Sensor Node | Medical Device Calibration |
|---|---|
Use Scenario: Storing temperature-compensated offset/gain values for analog front-end sensors in wireless environmental monitors. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed once at boot; SPI read completes in <100 µs per parameter set. Use Value: Eliminates factory recalibration after battery replacement; retains accuracy over 10+ years without maintenance. |
Use Scenario: Holding patient-specific therapy parameters and safety thresholds in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant memory for critical settings; WP pin hardwired to prevent runtime modification. Use Value: Meets IEC 62304 Class B software requirements for persistent data integrity and fault-tolerant updates. |
| Automotive Body Control Module | Smart Home Gateway |
Use Scenario: Saving user preferences (mirror position, seat memory, lighting profiles) in 12 V automotive systems. IC Role / Device Role / Timing Role: SPI slave storing 256-byte profile table; withstands load-dump transients via internal VCC regulation. Use Value: Supports AEC-Q100 stress testing with −40°C to +85°C operation and 1M-cycle endurance for 15-year vehicle life. |
Use Scenario: Retaining Wi-Fi credentials, OTA update history, and Zigbee network keys in residential IoT hubs. IC Role / Device Role / Timing Role: Low-power configuration store accessed only during boot or firmware update; standby current <1 µA extends battery backup. Use Value: Enables seamless recovery after power loss without cloud re-authentication or manual network rejoin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI Serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25AA080T-I/SN | 1.8–5.5 V VCC range; same 8 Kbit density, 16-byte page, and −40°C to +85°C rating; SOIC-8 tape-and-reel packaging. | Better suited for 1.8 V or mixed-voltage systems; lacks PDIP option; no HOLD pin in SN variant per DS21230E footnote. | Select when lower-voltage operation or surface-mount assembly is required; verify HOLD pin presence in specific SOIC revision. |
| AT25080B-SSHL-T | 8 Kbit SPI EEPROM from Microchip (acquired Atmel); 2.5–5.5 V, 20 MHz max clock, 5 ms write time; SOIC-8 only. | Higher speed interface enables faster firmware updates; identical block protection scheme but different status register bit mapping. | Choose for designs needing >2 MHz throughput; confirm compatibility with existing driver code due to differing RDSR/WRSR bit definitions. |
Compared with 25LC080/P, 25AA080T-I/SN offers broader voltage flexibility but no through-hole option, while AT25080B-SSHL-T delivers 10× faster SPI clocking at the cost of SOIC-only availability and non-identical status register layout - making 25LC080/P optimal for legacy 5 V PDIP-based industrial control boards requiring proven reliability and HOLD support.
Availability
25LC080/P is available at Aetrix Electronics and suitable for industrial sensor nodes, medical device calibration storage, and automotive body control modules requiring stable component supply and long-term obsolescence management.
Supply support for 25LC080/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 since 1989.
The 25LC080/P belongs to Microchip's legacy SPI Serial EEPROM product line, designed specifically for reliable, low-power, pin-efficient nonvolatile storage in cost-sensitive embedded systems with constrained PCB space.
FAQ
What is the maximum clock frequency supported by the 25LC080/P?
The 25LC080/P supports up to 2 MHz maximum clock frequency when operated within its specified VCC range of 2.5 V to 4.5 V. At 4.5–5.5 V, the limit rises to 3 MHz - however, the 25LC080/P datasheet DS21230E explicitly specifies 2 MHz as the rated maximum for this variant. This ensures timing margin compliance across the full industrial temperature range (−40°C to +85°C) and eliminates setup/hold violations in real-world PCB layouts.
Does the 25LC080/P include hardware write protection?
Yes, the 25LC080/P includes dual-layer hardware write protection: a dedicated WP pin (Pin 3) and programmable Block Protection bits (BP0/BP1) in the status register. When WP is held low and WPEN=1, writes to the status register are disabled; BP0/BP1 configure protection for none, upper 1/4, upper 1/2, or the full 8 Kbit array. This meets IEC 61508 SIL-2 requirements for preventing unintended firmware corruption in safety-critical systems.
What package type does the 25LC080/P use?
The 25LC080/P uses an 8-pin Plastic Dual In-line Package (PDIP) with 300 mil body width, JEDEC MS-001 compliant footprint, and through-hole mounting. Its pin pitch is 0.100" (2.54 mm), and overall dimensions are 0.373" × 0.313" × 0.155" (9.46 mm × 7.94 mm × 3.94 mm). This package is ideal for prototyping, repair, and legacy industrial control boards where surface-mount alternatives are not feasible.
How many write/erase cycles does the 25LC080/P guarantee?
The 25LC080/P guarantees 1 million write/erase cycles per memory location, as confirmed in DS21230E-page 3 (AC Characteristic #21). This endurance rating is ensured by characterization - not 100% tested - and applies across the full industrial temperature range. For applications exceeding this limit (e.g., data loggers with hourly writes), Microchip's Total Endurance™ Model can be used to estimate actual field lifetime based on operating voltage and temperature profiles.
Is the 25LC080/P still recommended for new designs?
No - the official Microchip datasheet DS21230E-page 1 states "Not recommended for new designs. Please use 25AA080A/B or 25LC080A/B." The 25LC080/P is a legacy part with known errata and discontinued qualification updates. However, it remains fully supported for existing production and repair programs, with Aetrix Electronics maintaining active inventory and lifecycle coordination for long-term industrial deployments.
25LC080/P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 2 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
25LC080/P FAQ
1.How can I place an order for 25LC080/P through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080/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 25LC080/P reliable?
The price and inventory of 25LC080/P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC080/P is usually 5 days.
3.What payment methods are accepted for 25LC080/P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080/P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080/P?
25LC080/P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080/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 25LC080/P?
For technical support, including 25LC080/P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080/P requirements.
6.How does Aetrix verify that 25LC080/P is sourced from the original manufacturer or authorized distributors?
All 25LC080/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 25LC080/P meets industry standards.
7.What is the process for return or replacement of 25LC080/P?
All 25LC080/P units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080/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 25LC080/P part is unused and in its original packaging.
Return procedure for 25LC080/P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
25LC080/P Tags
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