25LC640A-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip 25LC640A-I/P is a 64 Kbit SPI serial EEPROM in an 8-pin DIP package offering up to 10 MHz clock frequency and 1,000,000 write/erase cycle endurance. With a data retention of 200 years and 2.5 V minimum operation, it is ideal for non-volatile configuration and parameter storage in embedded systems.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25LC640A-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4300(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 Kbit (8 KB) SPI EEPROM for non-volatile parameter and configuration storage
- Up to 10 MHz SPI clock frequency enabling fast read throughput in MCU designs
- 1,000,000 write/erase cycle endurance for high-reliability data logging applications
- 200-year minimum data retention ensuring long-term storage integrity
- Operates from 2.5 V minimum at 5 MHz, supporting low-voltage battery-powered systems
- 8-pin PDIP package compatible with breadboard prototyping and DIP socket installations
Applications
The 25LC640A-I/P is widely used in microcontroller-based systems for storing calibration data, firmware configuration, user settings, and device identifiers in industrial controllers, home appliances, and medical instruments. Its SPI interface and 8-pin DIP form factor make it easy to prototype on breadboards and integrate into low-pin-count MCU designs. The high endurance of 1,000,000 write cycles also makes it suitable for data logging applications where the memory is updated frequently during product operation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Additional Feature | OPERATES WITH 2.5VMIN @ 5MHZ |
| Clock Frequency-Max (fCLK) | 10MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Memory Density | 65536bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 8192words |
| Number of Words Code | 8000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 8KX8 |
| Output Characteristics | 3-STATE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 25LC640A-I/P:
Frequently Asked Questions
How many write cycles can the 25LC640A-I/P endure before reliability becomes a concern?
The 25LC640A-I/P is rated for 1,000,000 write/erase cycles, which provides ample endurance for most embedded applications that update configuration data or log sensor readings periodically over the product lifetime.
At what minimum supply voltage can the 25LC640A-I/P operate reliably for low-power SPI designs?
The 25LC640A-I/P operates from a minimum of 2.5 V at up to 5 MHz clock frequency, making it compatible with low-voltage MCU systems and single-cell lithium battery supplies without requiring a voltage regulator.
How does the 8-pin PDIP package affect lead time and sourcing flexibility for 25LC640A-I/P?
The 25LC640A-I/P in an 8-pin PDIP package has a factory lead time of approximately 8 weeks, so procurement teams sourcing for production builds should plan ahead, especially since DIP packages are also available from independent distributors with shorter delivery windows.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9300 | $0.93 |
| 3+ | $0.6676 | $2.00 |
| 200+ | $0.4550 | $91.00 |
| 500+ | $0.4450 | $222.50 |
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