25LC080BT-I/ST芯片解密技術(shù)資料

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　Features
　　Max. clock 10 MHz
　　Low-power CMOS technology
　　1024 x 8-bit organization
　　16 byte page (‘A’ version devices)
　　32 byte page (‘B’ version devices)
　　Write cycle time: 5 ms max.
　　Self-timed ERASE and WRITE cycles
　　Block write protection
　　- Protect none, 1/4, 1/2 or all of array
　　Built-in write protection
　　- Power-on/off data protection circuitry
　　- Write enable latch
　　- Write-protect pin
　　Sequential read
　　High reliability
　　- Endurance: 1,000,000 erase/write cycles
　　- Data retention: > 200 years
　　- ESD protection: > 4000V
　　Pb-free and RoHS compliant
　　Temperature ranges supported;
　　Pin Function Table
　　Description
　　The Microchip Technology Inc. 25AA080A/B,
　　25LC080A/B (25XX080A/B
　　*
　　) are 8 Kbit Serial
　　Electrically Erasable PROMs. The memory is accessed
　　via a simple 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 device can be paused via the
　　hold pin (HOLD). While the device is paused, transi-
　　tions on its inputs will be ignored, with the exception of
　　chip select, allowing the host to service higher priority
　　interrupts.
　　The 25XX080A/B is available in standard packages
　　including 8-lead PDIP and SOIC, and advanced
　　packaging including 8-lead MSOP, and 8-lead TSSOP.
　　All packages are Pb-free and RoHS compliant.
　　Package Types (not to scale)
　　Part Number VCC Range Page Size Temp. Ranges Packages
　　25LC080A 2.5-5.5V 16 Byte I, E P, SN, ST, MS
　　25AA080A 1.8-5.5V 16 Byte I P, SN, ST, MS
　　25LC080B 2.5-5.5V 32 Byte I, E P, SN, ST, MS
　　25AA080B 1.8-5.5V 32 Byte I P, SN, ST, MS
　　- Industrial (I): -40°Cto +85°C
　　- Automotive (E): -40°C to +125°C
　　Name Function
　　CS Chip Select Input
　　SO Serial Data Output
　　WP Write-Protect
　　VSS Ground
　　SI Serial Data Input
　　SCK Serial Clock Input
　　HOLD Hold Input
　　VCC Supply Voltage
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