DESCRIPTION
The X25F087 is a CMOS 8k-bit SerialFlash, internally organized as 1024 x 8. The X25F087 features a Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple four-wire bus. The bus signals 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, allowing any number of devices to share the same bus.

FEATURES
• 1MHz Clock Rate
• SPI Modes (0,0 & 1,1)
• 1024 x 8 Bits
    —16 Byte Small Sector Program Mode
• Low Power CMOS
    —<1µA Standby Current
    —<3mA Active Current during Program
    —<400µA Active Current during Read
• 1.8V to 3.6V or 5V “Univolt” Read and Program Power Supply Versions
• Block Lock Protection
    —Block Lock Protect 0, any 1/4, 1st 1/2, First or Last Sector of SerialFlash Array
• Built-in Inadvertent Program Protection
    —Power-Up/Power-Down Protection Circuitry
    —Program Enable Latch
    —Program Protect Pin
• Self-Timed Program Cycle
    —5ms Program Cycle Time (Typical)
• High Reliability
    —Endurance: 100,000 Cycles/Byte
    —Data Retention: 100 Years
    —ESD: 2000V on all pins
• 8-Lead SOIC Package
• 8-Lead TSSOP Package
• 8-Pin Mini-DIP Package