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X25330AF Datasheet(PDF) 1 Page - IC MICROSYSTEMS |
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X25330AF Datasheet(HTML) 1 Page - IC MICROSYSTEMS |
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1 / 14 page  5MHz SPI Serial E 2 PROM with Block Lock TM Protection 32K 4K x 8 Bit © Xicor, Inc. 1994 - 1997 Patents Pending 1 Characteristics subject to change without notice 7048–1.0 6/18/97 T0/C0/D0 SH X25330 FEATURES •5MHz Clock Rate •Low Power CMOS <1µA Standby Current <5mA Active Current •2.5V To 5.5V Power Supply •SPI Modes (0,0 & 1,1) •4K X 8 Bits 32 Byte Page Mode •Block Lock™ Protection Protect 1/4, 1/2 or all of E 2PROM Array •Programmable Hardware Write Protection In-Circuit Programmable ROM Mode •Built-in Inadvertent Write Protection Power-Up/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 •Packages 8-Lead SOIC 14-Lead TSSOP DESCRIPTION The X25330 is a CMOS 32K-bit serial E 2 PROM, internally organized as 4K x 8. The X25330 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 X25330 also features two additional inputs that provide the end user with added flexibility. By asserting the HOLD input, the X25330 will ignore tran- sitions on its inputs, thus allowing the host to service higher priority interrupts. The WP input can be used as a hardwire input to the X25330 disabling all write attempts to the status register, thus providing a mech- anism for limiting end user capability of altering 0, 1/4, 1/2 or all of the memory. The X25330 utilizes Xicor’s proprietary Direct Write TM cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years. COMMAND DECODE AND CONTROL LOGIC WRITE CONTROL AND TIMING LOGIC WRITE PROTECT LOGIC X DECODE LOGIC 4K BYTE ARRAY 32 X 256 Y DECODE DATA REGISTER SO SI SCK CS HOLD WP 32 64 8 32 STATUS REGISTER 32 64 X 256 32 X 256 7037 FRM F01 Direct Write TM and Block LockTM Protection is a trademark of Xicor, Inc. FUNCTIONAL DIAGRAM This X25330 device has been acquired by IC MICROSYSTEMS from Xicor, Inc. ICmic IC MICROSYSTEMS TM |
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