DESCRIPTION
The X25F064/032/016/008 family are 8/16/32/64K-bit CMOS SerialFlash memory, internally organized X 8. They feature a “Univolt” Program and Read voltage, Serial Peripheral Interface (SPI), and software protocol
allowing operation on a simple three-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 Serial Interface
• 64K/32K/16K/8K Bits
—32 Byte Small Sector Program Mode
• Low Power CMOS
—<1µA Standby Current
—<5mA Active Current
• 1.8V – 3.6V or 5V “Univolt” Read and Program Power Supply Versions
• Block Lock Protection
—Protect 1/4, 1/2, or all of E2PROM 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 per byte
—Data Retention: 100 Years
—ESD protection: 2000V on all pins
• 8-Lead PDlP Package
• 8-Lead 150 mil SOIC Packages
• 32K, 16K, 8K available in 14-Lead TSSOP, 64K available in 20-Lead TSSOP