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X25020PG-2.7 Datasheet(PDF) 1 Page - IC MICROSYSTEMS |
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X25020PG-2.7 Datasheet(HTML) 1 Page - IC MICROSYSTEMS |
1 / 14 page This X25020 device has been acquired by IC MICROSYSTEMS from Xicor, Inc. 1 2K X25020 256 x 8 Bit ©Xicor, Inc. 1994, 1995, 1996 Patents Pending Characteristics subject to change without notice 3834-1.8 6/10/96 T3/C1/D0 NS Direct Write ™ and Block Lock ™ Protection is a trademark of Xicor, Inc. SPI Serial E 2PROM with Block LockTM Protection 3834 FHD F01 FUNCTIONAL DIAGRAM DESCRIPTION The X25020 is a CMOS 2048-bit serial E 2 PROM, internally organized as 256 x 8. The X25020 features a serial interface 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 X25020 also features two additional inputs that provide the end user with added flexibility. By asserting the HOLD input, the X25020 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 X25020 disabling all write attempts, thus providing a mechanism for limiting end user capability of altering the memory. The X25020 utilizes Xicor’s proprietary Direct Write™ cell, providing a minimum endurance of 100,000 cycles per byte and a minimum data retention of 100 years. FEATURES •1MHz Clock Rate •SPI Modes (0,0 & 1,1) •256 X 8 Bits —4 Byte Page Mode •Low Power CMOS —10µA Standby Current —3mA Active Write Current •2.7V To 5.5V Power Supply •Block Lock Protection —Protect 1/4, 1/2 or all of E 2PROM Array •Built-in Inadvertent Write Protection —Power-Up/Power-Down protection circuitry —Write Latch —Write Protect Pin •Self-Timed Write Cycle —5ms Write 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 SOIC Package COMMAND DECODE AND CONTROL LOGIC WRITE CONTROL AND TIMING LOGIC WRITE PROTECT LOGIC X DECODE LOGIC 256 BYTE ARRAY 16 X 32 Y DECODE DATA REGISTER 16 X 32 32 X 32 SO SI SCK CS HOLD WP 16 16 32 8 4 STATUS REGISTER ICmic IC MICROSYSTEMS TM |
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Similar Description - X25020PG-2.7 |
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