25AA640-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
25AA640-I/SN is a memory IC by Microchip. Key specs include Date Of Intro: 1997-09-01; Clock Frequency-Max (fCLK): 1 MHz. From RFQ price checks to worldwide shipping, FindMyChip supports sourcing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- 25AA640-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7003(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 25AA640-I/SN?
- Date Of Intro: 1997-09-01 for memory IC design checks
- SOIC, 8 pins package information for PCB footprint and receiving inspection
- -40°C to 85°C operating temperature context for qualification planning
- Microchip 25AA640-I/SN Serial EEPROM Memory, 64kbit, 475ns, 1.8 to 5.5 V 8-Pin SOIC source description preserved for buyer review
- Microchip 25AA640-I/SN identification for RFQ, traceability, and alternate checks
What is 25AA640-I/SN used for?
25AA640-I/SN is suited to configuration storage, calibration data, serial identification, and small embedded data logs where SOIC, 8 pins sourcing details matter. Buyers commonly verify -40°C to 85°C, lifecycle status, and manufacturer traceability before approving it for production or maintenance builds.
What are the specifications of 25AA640-I/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| Date Of Intro | 1997-09-01 |
| YTEOL | 3 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G8 |
| 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 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 2.5V |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000005A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Taiwan, Thailand |
Where can I find the 25AA640-I/SN datasheet?
25AA640-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 25AA640-I/SN?
Compatible alternatives and drop-in replacements for 25AA640-I/SN:
Frequently Asked Questions
What is the maximum SPI clock frequency and memory capacity of the 25AA640-I/SN?
The 25AA640-I/SN supports a maximum SPI clock frequency of 1 MHz and provides 64 Kbit (8 KB) of EEPROM storage organized in a byte-addressable array. It operates from a supply voltage range of 1.8 V to 5.5 V, making it compatible with both 3.3 V and 5 V microcontroller systems. The 8-pin SOIC package keeps board footprint minimal for embedded logging and configuration storage designs.
How many write cycles and how long can data be retained in the 25AA640-I/SN?
The 25AA640-I/SN is rated for 1,000,000 write/erase cycles per byte location and guarantees a minimum data retention time of 200 years under standard operating conditions. These endurance and retention figures make it suitable for applications requiring frequent parameter updates, such as calibration data storage in industrial instruments or event counters in metering equipment. The combination of high endurance and long retention distinguishes it from lower-grade EEPROM devices.
Is the 25AA640-I/SN a suitable drop-in replacement for 25LC640 or 25C640 in existing PCB designs?
The 25AA640-I/SN is the low-voltage variant of Microchip's 25xx640 family, operating at 1.8 V to 5.5 V versus the 25LC640 (2.5 V to 5.5 V) and 25C640 (4.5 V to 5.5 V). All three share the same 8-pin SOIC package (SOIC-8, JESD-30 code R-PDSO-G8), identical SPI protocol at up to 1 MHz, and 64 Kbit capacity, so the 25AA640-I/SN is fully pin- and software-compatible while extending operation to lower supply voltages. When migrating 5 V designs, verify that SPI signal levels meet the device's input thresholds at the target supply voltage.
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Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9000 | $0.90 |
| 25+ | $0.8800 | $22.00 |
| 100+ | $0.8400 | $84.00 |
| 500+ | $0.8200 | $410.00 |
| 1000+ | $0.8000 | $800.00 |
| 2000+ | $0.7003 | $1400.60 |
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