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Microchip Technology 25LC080CT-I/MNY
- Part No.:
- 25LC080CT-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
25LC080CT-I/MNY.pdf
- Description:
- IC EEPROM 8KBIT SPI 10MHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,096
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Product details
Overview
25LC080CT-I/MNY from Microchip Technology is an 8 Kbit SPI Serial EEPROM with 1024 × 8-bit organization, 16-byte page size, and industrial temperature range (−40°C to +85°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 microcontroller-based systems for nonvolatile parameter storage, calibration data retention, and firmware configuration.
For engineers reviewing the 25LC080CT-I/MNY datasheet, 25LC080CT-I/MNY pinout, 25LC080CT-I/MNY application, or 25LC080CT-I/MNY equivalent, key selection criteria include SPI interface compatibility, 16-byte page write capability, −40°C to +85°C operation, hardware/software write protection, and TDFN-8 (2×3 mm) package suitability for space-constrained PCB layouts.
Technical Context
The 25LC080CT-I/MNY implements a standard SPI Mode 0,0 (CPOL = 0, CPHA = 0) interface with separate SI (data in) and SO (data out) lines, requiring CS, SCK, SI, SO, WP, HOLD, VCC, and VSS. It uses internal high-voltage generation for EEPROM programming and includes a self-timed 5 ms max write cycle with automatic write-enable latch reset after each write.
Its memory architecture supports sequential read across address boundaries with automatic rollover at 03FFh, and enforces strict page-write alignment: all bytes in a single page write must reside within the same 16-byte physical page (e.g., addresses 0000h–000Fh), otherwise data wraps within the page.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), sufficient for storing boot configuration, device ID, or sensor calibration tables |
| Interface | SPI-compatible serial bus (Mode 0,0), compatible with PIC® and most MCU SPI peripherals without bit-banging |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V, enabling fast read/write transfers in high-throughput embedded systems |
| Page Size | 16 bytes - defines maximum burst write length before internal write cycle initiation; requires software boundary checking |
| Write Cycle Time | ≤ 5 ms - determines minimum interval between page writes; impacts real-time logging latency |
| Supply Voltage Range | 2.5V to 5.5V - supports direct interfacing with 3.3V and 5V logic domains without level shifting |
| Endurance & Retention | >1 million erase/write cycles and >200 years data retention - validated for long-life industrial deployments |
Pinout & Package
25LC080CT-I/MNY is housed in an 8-lead 2×3 mm TDFN (Thin Dual Flat No-lead) package, marked "C44" per Microchip's packaging specification, with wettable flanks 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: drives device into active mode; rising edge initiates internal write cycle after valid write sequence |
| SO (Pin 2) | Serial Data Output | Tri-state output updated after falling edge of SCK; high-impedance when CS high or HOLD low |
| WP (Pin 3) | Hardware Write-Protect Input | Low + WPEN bit set disables STATUS register writes only; does not block memory reads or byte writes |
| VSS (Pin 4) | Ground Reference | Primary return path for all internal circuitry and I/O; must be low-impedance connection to system GND plane |
| SI (Pin 5) | Serial Data Input | Latches instruction, address, and data on rising edge of SCK; requires clean signal integrity for reliable command decoding |
| SCK (Pin 6) | Serial Clock Input | Synchronizes all SPI transactions; must remain low during HOLD assertion/resumption to avoid protocol violation |
| HOLD (Pin 7) | Serial Transfer Pause Control | Low pauses ongoing SPI sequence; SO tri-states immediately; resumes from exact bit position on HOLD high (SCK low required) |
| VCC (Pin 8) | Power Supply | 2.5–5.5V operating range; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Selectable protection of none, 1/4 (0300h–03FFh), 1/2 (0200h–03FFh), or full array (0000h–03FFh) via BP0/BP1 bits |
| Power-On Write Protection | Write enable latch resets at power-up, preventing inadvertent writes during supply ramp-up or brownout |
| Hold Function | Enables host MCU to service higher-priority interrupts mid-transaction without reinitializing SPI framing or address state |
| ESD Robustness | >4 kV HBM - ensures reliability in handling-sensitive industrial assembly and field-replaceable modules |
| Pb-Free Packaging | TDFN-8 (2×3 mm) with matte tin terminations - meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 |
Applications
| Industrial Sensor Node | Medical Device Calibration |
|---|---|
Use Scenario: Storing sensor offset/gain coefficients and factory calibration timestamps in battery-powered wireless nodes. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed via SPI during boot and periodic recalibration; no timing-critical latency. Use Value: 16-byte page writes align with typical calibration record size; >200-year retention ensures lifetime data integrity without backup power. | Use Scenario: Holding FDA-mandated calibration logs and user-adjustable therapy parameters in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter store with hardware write-protection enabled during normal operation. Use Value: WP pin + WPEN bit prevents runtime corruption of critical therapy settings while allowing updates during maintenance mode. |
| Automotive Body Control Module | Smart Energy Meter |
Use Scenario: Saving seat/mirror position presets and lighting configuration profiles across ignition cycles in 12V automotive systems. IC Role / Device Role / Timing Role: SPI EEPROM interfaced directly to 3.3V microcontroller; withstands load-dump transients via robust VCC range (2.5–5.5V). Use Value: Industrial temp rating (−40°C to +85°C) covers under-hood ambient extremes; 1M endurance supports daily reprogramming over 10+ year vehicle life. | Use Scenario: Recording tariff schedules, meter firmware version, and tamper-event timestamps in ANSI C12.20-compliant meters. IC Role / Device Role / Timing Role: Secure, long-retention storage for regulatory audit data; accessed infrequently but with absolute data integrity requirements. Use Value: Block protection isolates tariff tables from firmware update routines; >200-year retention eliminates need for periodic data refresh. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC080DT-I/MNY | 32-byte page size, same voltage/temp specs; pinout and SPI protocol identical | Better suited for applications requiring larger burst writes (e.g., firmware patch storage) | Select if firmware or data structures exceed 16-byte alignment constraints; verify page-boundary handling in host driver |
| AT25080B-MAHL-T | Same 8 Kbit, 16-byte page, SPI interface; operates down to 1.8V; different HOLD timing and SO drive strength | Preferred for ultra-low-power 1.8V systems where 25LC080CT-I/MNY's 2.5V min is incompatible | Choose only when VCC < 2.5V is required; validate HOLD recovery and SO rise/fall times against host timing budget |
Compared with 25LC080DT-I/MNY, the 25LC080CT-I/MNY offers tighter page-write granularity for fine-grained updates; compared with AT25080B-MAHL-T, it provides higher VCC noise margin and proven interoperability with Microchip PIC® MCUs but lacks sub-2.5V operation.
Availability
25LC080CT-I/MNY is available at Aetrix Electronics and suitable for industrial sensor nodes, medical device calibration storage, and automotive body control modules requiring stable component supply, long-term data retention, and RoHS-compliant packaging.
Supply support for 25LC080CT-I/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 microcontroller, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 25LC080C/D family was designed specifically for cost-sensitive, space-constrained embedded systems needing reliable, low-power serial EEPROM with industrial-grade temperature performance and robust SPI interoperability.
FAQ
What is the maximum clock frequency supported by the 25LC080CT-I/MNY?
The 25LC080CT-I/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. These limits are defined in Table 1-2 of the DS22151B datasheet and ensure reliable setup/hold timing across voltage and temperature ranges. Exceeding them risks read/write corruption.
Does the 25LC080CT-I/MNY require external pull-up resistors on its SPI lines?
No, the 25LC080CT-I/MNY does not require external pull-ups on SI, SO, or SCK. Its SO pin is actively driven and tri-stated when deselected; SI and SCK are CMOS inputs with no internal pull-ups. However, CS and WP should be pulled high externally in most designs to ensure predictable power-on behavior and default write protection.
How does the HOLD function behave during an active write cycle in the 25LC080CT-I/MNY?
The HOLD function is disabled during an internal write cycle (TWC period) in the 25LC080CT-I/MNY. Pulling HOLD low during this time has no effect - the write proceeds to completion, and SO remains in high-impedance. HOLD only suspends serial communication during active read/write sequences prior to CS deassertion.
Can the 25LC080CT-I/MNY be used in a 1.8V system?
No, the 25LC080CT-I/MNY has a minimum VCC of 2.5V and is not rated for 1.8V operation. Attempting to power it at 1.8V will result in undefined behavior, failed writes, or communication errors. For 1.8V systems, consider Microchip's 25AA080C series or alternatives like the AT25080B-MAHL-T.
What package type does the 25LC080CT-I/MNY use, and what are its key mechanical features?
The 25LC080CT-I/MNY uses an 8-lead 2×3 mm TDFN (Thin Dual Flat No-lead) package, marked "C44". It features wettable flanks for solder joint inspection, 0.5 mm pitch, and JEDEC-compliant RoHS termination. Its low profile (max 0.8 mm height) and small footprint make it ideal for dense PCB layouts in portable and automotive modules.
25LC080CT-I/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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
25LC080CT-I/MNY FAQ
1.How can I place an order for 25LC080CT-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC080CT-I/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-I/MNY reliable?
The price and inventory of 25LC080CT-I/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-I/MNY is usually 5 days.
3.What payment methods are accepted for 25LC080CT-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC080CT-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC080CT-I/MNY?
25LC080CT-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC080CT-I/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-I/MNY?
For technical support, including 25LC080CT-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC080CT-I/MNY requirements.
6.How does Aetrix verify that 25LC080CT-I/MNY is sourced from the original manufacturer or authorized distributors?
All 25LC080CT-I/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-I/MNY meets industry standards.
7.What is the process for return or replacement of 25LC080CT-I/MNY?
All 25LC080CT-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 25LC080CT-I/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-I/MNY part is unused and in its original packaging.
Return procedure for 25LC080CT-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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