25AA1024-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The Microchip 25AA1024-I/P is a 1 Mbit SPI serial EEPROM in an 8-pin DIP package, operating from 1.8 V to 5.5 V supply with a 20 MHz clock and 250 ns read access time. It offers 100,000 write/erase endurance cycles, 200-year data retention, and is RoHS compliant for non-volatile data logging and configuration storage applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25AA1024-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7100(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
- 1 Mbit (128 KB) SPI EEPROM with 20 MHz clock frequency and 250 ns read access time for fast serial data retrieval
- Wide supply voltage range of 1.8 V to 5.5 V enables direct interfacing with both 3.3 V and 5 V microcontrollers without level-shifting
- 100,000 write/erase endurance cycles and 200-year data retention rating for reliable long-life non-volatile configuration storage
Applications
The 25AA1024-I/P is used in embedded systems and microcontroller-based designs where up to 128 KB of non-volatile configuration, calibration, or event log data must be stored via a simple 4-wire SPI interface. Its 1.8 V to 5.5 V supply range makes it compatible with PIC, AVR, ARM Cortex-M, and other MCU families without additional level translation. Industrial meters, data loggers, medical instruments, and consumer electronics firmware storage boards commonly use this device for reliable field configuration storage.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| Additional Feature | 200 YEARS OF DATA RETENTION; 1000000 ENDURANCE CYCLES/WORD |
| Clock Frequency-Max (fCLK) | 20MHz |
| Endurance | 100000 Write/Erase Cycles |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Memory Density | 1048576bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 131072words |
| Number of Words Code | 128000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128KX8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supplies | 2/5 V |
| Qualification Status | Not Qualified |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Subcategory | Flash Memories |
| Supply Current-Max | 0.01mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Type | NOR TYPE |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What SPI clock speed and supply voltage range does the 25AA1024-I/P support for interfacing with 3.3 V microcontrollers?
The 25AA1024-I/P supports SPI clock frequencies up to 20 MHz and operates from a supply voltage of 1.8 V to 5.5 V, making it directly compatible with 3.3 V and 5 V microcontrollers without any external level-shifting circuitry. Its 4-wire SPI interface (CS, SCK, SI, SO) maps directly to standard MCU SPI peripherals. A 250 ns chip select to output delay ensures stable data on the first SCK rising edge at full 20 MHz bus speed, supporting fast data logging in embedded designs.
How many write cycles can the 25AA1024-I/P sustain before wear limits its reliability in a high-frequency logging application?
The 25AA1024-I/P is rated for 100,000 write/erase cycles per memory word and a data retention of 200 years after the last write. In a data logging application writing a 256-byte page every 10 minutes, the device would accumulate approximately 52,560 writes per year per page, staying within the 100,000-cycle endurance limit for nearly 2 years before that page address begins approaching the wear limit. Designers running high-frequency logging should implement wear-leveling across the 512 available pages to distribute writes and extend usable device lifetime beyond 10 years in the field.
When should an engineer choose the through-hole 25AA1024-I/P DIP-8 package over the surface mount SOIC-8 25AA1024-I/SM for a prototype or low-volume production board?
The 25AA1024-I/P in 8-pin PDIP is the preferred choice during prototyping and lab evaluation because it inserts into standard 2.54 mm breadboards and DIP sockets without soldering, allowing rapid firmware testing and device swapping. For low-volume production runs of under 500 units where hand-assembly is used rather than SMT reflow lines, the DIP-8 format eliminates the need for solder paste stencils and reflow ovens. High-volume production designs above 1,000 units typically transition to the SOIC-8 or SPI DFN variants to reduce PCB footprint by approximately 50% and enable fully automated SMT assembly.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.3100 | $4.31 |
| 100+ | $3.8500 | $385.00 |
| 240+ | $1.7300 | $415.20 |
| 360+ | $1.7200 | $619.20 |
| 480+ | $1.7100 | $820.80 |
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