(China (Mainland))
Product Summary
The 25LC640-I/SN is a 64 Kbit Serial Electrically Erasable PROM [EEPROM]. The memory is accessed via a imple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the 25LC640-I/SN can be paused via the hold pin (HOLD). While the 25LC640-I/SN is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts.
Parametrics
25LC640-I/SN absolute maximum ratings: (1)VCC:7.0V; (2)All inputs and outputs w.r.t. VSS:-0.6V to VCC + 1.0V; (3)Storage temperature:-65℃ to 150℃; (4)Ambient temperature under bias:-65℃ to 125℃; (5)ESD protection on all pins:4 kV.
Features
25LC640-I/SN features: (1)Low-Power CMOS Technology: Write current: 3 mA, typical，Read current: 500 μA, typical，Standby current: 500 nA, typical 8192 x 8 Bit Organization; (2)32 Byte Page; (3)Write Cycle Time: 5 ms max.; (4)Self-Timed Erase and Write Cycles; (5)Block Write Protection:Protect none, 1/4, 1/2 or all of array; (6)Built-in Write Protection:Power on/off data protection circuitry, Write enable latch, Write-protect pin; (7)Sequential Read; (8)High Reliability:Data retention: > 200 years,ESD protection: > 4000V; (9)8-pin PDIP, SOIC and TSSOP Packages; (10)Temperature Ranges Supported:Industrial (I): -40℃ to +85℃,Automotive (E): -40℃ to +125℃.
Diagrams
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 25LC640-I/SN |
Microchip Technology |
EEPROM 8kx8 - 2.5V |
Data Sheet |
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25LC640-I/SNG |
Microchip Technology |
EEPROM 8kx8 - 2.5V Lead Free Package |
Data Sheet |
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