The Microchip 25AA640A/25LC640A is a 64Kbit Serial EEPROM that operates via a Serial Peripheral Interface (SPI) with a maximum clock frequency of 10 MHz. It features a memory organization of 8192 x 8 bits and supports a supply voltage range of 1.8V to 5.5V. The device is designed for low power consumption, with a maximum write current of 5 mA and a standby current of 1 ¬µA at 5.5V. This EEPROM supports self-timed erase and write cycles, with a maximum cycle time of 5 ms. It includes block write protection options, allowing users to protect none, 1/4, 1/2, or the entire memory array. The device also features built-in write protection mechanisms, including power-on/off data protection and a write-protect pin. The 25AA640A/25LC640A is rated for high reliability, with an endurance of 1,000,000 erase/write cycles and data retention exceeding 200 years. It is available in various package types, including SOIC-8, and is suitable for industrial and automotive temperature ranges, from -40¬8C to +85¬8C and -40¬8C to +125¬8C, respectively.
Manufacturer: Microchip Technology
Win Source Part Number: 845266-25AA640AT-I/S
Operating Temperature Range: -40°C ~ 85°C (TA)
Features: EEPROM Memory IC 64Kb (8K x 8) SPI 8-SOIC
Package: 8-SOIC (0.154", 3.90mm Width)
Package: Reel - TR
Mounting: Surface Mount
Family Name: 25AA640
Categories: Integrated Circuits (ICs)
Case / Package: 8-SOIC
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 53 pct.
Supply and Demand Status: Limited
Quantity per package: 3300
MSL Level: 1 (Unlimited)
Estimated Pruduction Lead Time: 51 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.32.0051
Other Part Number: 25AA640AT-I/SNTR, 25AA640AT-I/SNCT, 25AA640AT-I/SNDKR
EEPROM Memory IC 64Kb (8K x 8) SPI 10MHz 8-SOIC
EEPROM Memory IC 64Kb (8K x 8) SPI 10MHz 8-SOIC
EEPROM Memory IC 64Kb (8K x 8) SPI 10MHz 8-SOIC
IC EEPROM 64KBIT SPI 10MHZ 8SOIC Product overview: 25AA640AT-I/SN from Microchip Technology is a Memory IC and Storage Component for data storage, firmware boot, embedded logging, industrial controllers, computing modules, and replacement sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 10MHZ. Search-friendly keywords include memory IC, Flash, SRAM, DRAM, storage module, 10MHZ, Memory IC and Storage Component, Memory ICs Products. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 774-25AA640AT-I/SN can be used for catalog matching and distributor lookup.
EEPROM Memory IC 64Kbit SPI 10 MHz 8-SOIC
IC EEPROM 64KBIT SPI 10MHZ 8SOIC
IC EEPROM 64KBIT SPI 10MHZ 8SOIC
EEPROM, 64KBIT, SPI, 10MHZ, SOIC-8; Memory Size:64Kbit; EEPROM Memory Configuration:8K x 8bit; Memory Interface Type:Serial SPI; Clock Frequency:10MHz; Memory Case Style:SOIC; No. of Pins:8Pins; Supply Voltage Min:1.8V; Supply RoHS Compliant: Yes
| Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|
| Product Category | Memory Chips | Memory Chips | Memory Chips | Memory Chips | Memory Chips | Memory Chips | Memory Chips |
| Product Number | 845266-25AA640AT-I/SN | 25AA640AT-I/SNTR-ND | 774-25AA640AT-I/SN | 25AA640AT-I/SN | 25AA640AT-I/SN | 25AA640AT-I/SN | 57AC4945 |
| Product Name | Memory - EEPROM - 25AA640AT-I/SN | Memory | 10MHZ Memory IC and Storage Component | Memory | Memory | Integrated Circuits (ICs) - Memory - Memory | Eeprom, 64Kbit, Spi, 10Mhz, Soic-8; Memory Size Microchip |
| Memory Category | EEPROM | EEPROM | EEPROM | EEPROM; EEPROM | EEPROM; EEPROM | EEPROM; Non-Volatile | EEPROM |
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | |||
| Package Type | SOIC; 8-SOIC | SOIC; "8-SOIC (0.154"", 3.90mm Width)" | SOIC; 8-SOIC (0.154\", 3.90mm Width) | SOIC | |||
| Supply Voltage | 1.8V ~ 5.5V | -3.3V; 1.8 | 1.8V ~ 5.5V | Surface Mount | |||
| Access Time | 50 ns |
