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Microchip Technology 25LC080C-H/SN
- Part No.:
- 25LC080C-H/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
25LC080C-H/SN.pdf
- Description:
- IC EEPROM 8KBIT SPI 5MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,487
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Product details
Overview
25LC080C-H/SN from Microchip Technology Inc. is an 8-Kbit SPI serial EEPROM organized as 1,024 × 8 bits, operating over 2.5V–5.5V supply and supporting up to 5 MHz clock frequency at +150°C. It features byte/page write, hardware write protection via WP pin, and built-in power-on data protection-designed for nonvolatile parameter storage in automotive engine control units.
For engineers reviewing the 25LC080C-H/SN datasheet, 25LC080C-H/SN pinout, 25LC080C-H/SN application, or 25LC080C-H/SN equivalent, this page delivers verified electrical specs, high-temp SPI timing constraints, HOLD/CS interaction behavior, and AEC-Q100-compliant endurance data critical for under-hood electronics design.
Technical Context
The 25LC080C-H/SN 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 sampling on SI and falling-edge output on SO. Its internal architecture includes a status register with WIP, WEL, BP0/BP1, and WPEN bits controlling block protection and hardware write-enable logic.
It supports self-timed internal write cycles (≤6 ms), sequential read with automatic address rollover, and HOLD pin suspension of ongoing transfers without sequence reset. The device remains fully functional across –40°C to +150°C ambient, with ESD immunity >4 kV and >1,000,000 write/erase cycles at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 8 Kbit (1,024 × 8-bit organization) - defines maximum configurable configuration storage capacity |
| Max Clock Speed | 5 MHz at VCC ≥ 4.5V - enables fast firmware parameter updates in real-time control loops |
| Page Size | 16 bytes - constrains burst write length; crossing page boundary wraps data within same physical page |
| Write Cycle Time | ≤6 ms - determines minimum interval between successive write commands; blocks concurrent access |
| Endurance | >1,000,000 erase/write cycles - ensures long-term reliability in cyclic logging or calibration update applications |
| Data Retention | >200 years at +150°C - guarantees nonvolatile storage integrity over full automotive lifetime under extreme thermal stress |
| Temp Range | –40°C to +150°C (H grade) - qualified per AEC-Q100 for under-hood placement without derating |
Pinout & Package
8-Lead SOIC (SN package), 3.90 mm body width, RoHS-compliant matte tin finish, JEDEC MS-012AC standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS | Chip Select Input | Active-low enable; must go high after final data bit to initiate internal write cycle; forces SO into high-Z when deasserted |
| 2: SO | Serial Data Output | Tri-state output; data valid after SCK falling edge; enters high-Z during HOLD or CS high |
| 3: WP | Write-Protect Pin | Hardware lock for STATUS register when WPEN=1; no effect if WPEN=0; does not block array reads |
| 4: VSS | Ground Reference | Primary return path for all I/O and core logic; requires low-impedance connection to minimize noise coupling |
| 5: SI | Serial Data Input | Latches instruction/address/data on SCK rising edge; sampled first after CS low; ignores transitions during HOLD |
| 6: SCK | Serial Clock Input | Synchronizes all SPI transactions; must be low before asserting HOLD or releasing HOLD to resume |
| 7: HOLD | Hold Input | Pauses active transfer mid-sequence; SO/SI/SCK tri-stated; resumes from exact point upon HOLD high while SCK low |
| 8: VCC | Supply Voltage | 2.5V–5.5V operation; powers internal HV generator for EEPROM programming; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Extended Temperature Operation | H-grade support from –40°C to +150°C meets AEC-Q100 Grade 0 requirements for engine bay deployment |
| Hardware Write Protection | WP pin + WPEN bit combination enables field-programmable block-level lock (none/¼/½/all array) without firmware intervention |
| Page Write Capability | 16-byte page buffer allows efficient multi-byte writes within single command, reducing SPI overhead vs. byte-by-byte |
| Power-On Data Integrity | Automatic WEL reset and built-in power-on/off protection circuitry prevent spurious writes during supply ramp-up/down |
| HOLD Functionality | Enables host MCU to service higher-priority interrupts mid-transfer without losing SPI state or reinitializing sequence |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Storing calibrated fuel injection timing maps and fault log history across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration memory interfaced directly to PIC® MCU SPI port for deterministic parameter recall at boot. Use Value: >200-year data retention at +150°C ensures map integrity over full vehicle lifetime without backup battery. |
Use Scenario: Holding motor phase alignment offsets and thermal derating thresholds updated during commissioning. IC Role / Device Role / Timing Role: SPI-configurable persistent storage accessed during initialization and runtime diagnostics. Use Value: 16-byte page writes reduce firmware overhead by 87% vs. individual byte writes for multi-parameter updates. |
| Medical Infusion Pump | Railway Signaling Interface Module |
Use Scenario: Recording dose delivery logs and user-accessible calibration constants with tamper-resistant write protection. IC Role / Device Role / Timing Role: Secure parameter vault using WP pin hardwired to system security controller. Use Value: Hardware-enforced STATUS register lock prevents unauthorized firmware modification of critical safety parameters. |
Use Scenario: Storing track-side sensor calibration coefficients and fail-safe default states for SIL-2 compliant systems. IC Role / Device Role / Timing Role: High-reliability configuration store operating continuously in rail cabinet environments up to +70°C ambient. Use Value: >1M endurance cycles support daily recalibration routines over 10+ year field deployment without wear-out risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080D-H/SN | Same density and temp grade, but 32-byte page size vs. 16-byte - doubles burst write efficiency | Better suited for systems requiring frequent multi-parameter updates where page boundary management is simplified | Select 25LC080D-H/SN when firmware can accommodate larger page writes and faster throughput is prioritized |
| AT25080B-MAHL-T | 8-Kbit SPI EEPROM, –40°C to +125°C (not +150°C), 5 MHz max, 32-byte page, different status register layout | Lacks AEC-Q100 qualification and extended high-temp operation - unsuitable for under-hood use | Choose AT25080B-MAHL-T only for industrial or consumer applications below +125°C ambient |
Compared with 25LC080D-H/SN, the 25LC080C-H/SN offers tighter page-boundary control for deterministic small-data updates; versus AT25080B-MAHL-T, it provides guaranteed operation at +150°C and automotive qualification-critical for safety-critical embedded systems.
Availability
25LC080C-H/SN is available at Aetrix Electronics and suitable for automotive ECU development, industrial motor drive commissioning, medical infusion pump certification, and railway signaling interface modules requiring stable component supply across extended temperature ranges.
Supply support for 25LC080C-H/SN 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 components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 25LCxxx family was designed specifically for robust, high-temperature serial EEPROM applications in automotive, industrial, and medical systems requiring AEC-Q100 qualification and guaranteed data integrity under thermal stress.
FAQ
What is the maximum clock frequency supported by the 25LC080C-H/SN across its full voltage range?
The 25LC080C-H/SN supports up to 5 MHz at VCC ≥ 4.5V and 3 MHz at 2.5V ≤ VCC < 4.5V. These AC timing limits are specified across the full –40°C to +150°C operating range and must be respected to ensure reliable instruction decoding and data capture on SI/SO. Exceeding these frequencies may cause read corruption or failed write latching.
How does the HOLD pin function during an active SPI read sequence on the 25LC080C-H/SN?
During an active SPI read, pulling HOLD low places the 25LC080C-H/SN into hold mode: SO enters high-impedance, and SI/SCK are ignored until HOLD returns high while SCK is low. The internal address pointer retains position, allowing seamless resumption of sequential reads from the exact byte where paused-no retransmission or restart is needed.
Can the 25LC080C-H/SN be used without connecting the WP pin, and what is the default protection state?
Yes, the 25LC080C-H/SN operates normally with WP unconnected (floating or pulled high). By default, WPEN = 0 after power-up, so the WP pin has no effect on write protection. Block protection is disabled (BP1/BP0 = 00), and full array writes are permitted once WREN is issued-no external pull-up/down is required for basic functionality.
What happens if a page write command crosses a 16-byte boundary on the 25LC080C-H/SN?
If a page write command attempts to cross a 16-byte boundary, data wraps around to the start of the current page instead of advancing to the next page. For example, writing 17 bytes starting at address 0x000F overwrites bytes 0x000F through 0x001F, then wraps to overwrite 0x0000. Firmware must enforce page-aligned writes or split multi-page transfers manually.
Is the 25LC080C-H/SN pin-compatible with other devices in the 25LCxxx family, such as the 25LC160C-H/SN?
Yes, the 25LC080C-H/SN shares identical 8-pin SOIC (SN) packaging, pinout, and SPI interface protocol with all 25LCxxx variants including 25LC160C-H/SN. However, density, page size (16 vs. 32 bytes), and internal address space differ-firmware must validate memory map boundaries and adjust page write logic accordingly.
25LC080C-H/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 5 MHz
- Write Cycle Time - Word, Page:
- 6ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
25LC080C-H/SN FAQ
1.How can I place an order for 25LC080C-H/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080C-H/SN 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-H/SN reliable?
The price and inventory of 25LC080C-H/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC080C-H/SN is usually 5 days.
3.What payment methods are accepted for 25LC080C-H/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080C-H/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080C-H/SN?
25LC080C-H/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080C-H/SN 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-H/SN?
For technical support, including 25LC080C-H/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080C-H/SN requirements.
6.How does Aetrix verify that 25LC080C-H/SN is sourced from the original manufacturer or authorized distributors?
All 25LC080C-H/SN 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-H/SN meets industry standards.
7.What is the process for return or replacement of 25LC080C-H/SN?
All 25LC080C-H/SN units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080C-H/SN, 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-H/SN part is unused and in its original packaging.
Return procedure for 25LC080C-H/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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