X25170

This X25170 device has been acquired by IC MICROSYSTEMS from Xicor, Inc. ICmic TM IC MICROSYSTEMS 16K X25170 SPI Serial E 2PROM with Block Lock ™ 2K x 8 Bit Protection FEATURES 5MHz Clock Rate SPI Modes (0,0 & 1,1) 2K X 8 Bits —32 byte page mode Low Power CMOS —<1µA standby current —<5mA active current 2.5V To 5.5V Power Supply Block Lock Protection —Protect 1/4, 1/2 or all of E2PROM array Built-In Inadvertent Write Protection —Power-up/power-down protection circuitry —Write enable latch —Write protect pin Self-Timed Write Cycle —5ms write cycle time (typical) High Reliability —Endurance: 100,000 cycles —Data retention: 100 Years —ESD protection: 2000V on all pins 8-Lead PDlP Package 8-Lead SOIC Package 14-Lead TSSOP Package DESCRIPTION The X25170 is a CMOS 16384-bit serial E2PROM, internally organized as 2K x 8. The X25170 features a 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 X25170 also features two additional inputs that provide the end user with added flexibility. By asserting the HOLD input, the X25170 will ignore transitions on its inputs, thus allowing the host to service higher priority interrupts. The WP input can be used as a hardwire input to the X25170 (disabling all wr...