X25F128

APPLICATION NOTE A V A I L A B L E AN61 AN75 AN77 AN79 AN82 X25F128 X25F128 FEATURES 1MHz Clock Rate SPI Serial Interface 16K X 8 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 (Maximum) High Reliability — Endurance: 100,000 cycles per byte — Data Retention: 100 Years — ESD protection: 2000V on all pins 8-Lead PDlP Package 16-Lead 150 mil SOIC Package FUNCTIONAL DIAGRAM DATA REGISTER SI SECTOR DECODE LOGIC SO COMMAND DECODE AND CONTROL LOGIC 32 X DECODE LOGIC 8 16K x 8 Bits SerialFlash™ Memory With Block Lock™ Protection DESCRIPTION The X25F128 is a 131,072-bit CMOS SerialFlash memory, internally organized 16K X 8. It features 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. The X25F128 also features two additional inputs that provide the end user with added flexibility. By asserting ...