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X84041SI Datasheet(PDF) 1 Page - Xicor Inc. |
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X84041SI Datasheet(HTML) 1 Page - Xicor Inc. |
1 / 13 page X84041 1 Micro Port Saver E2PROM 4K X84041 MPS™ E2PROM DESCRIPTION The X84041 Micro Port Saver is a 4096-bit CMOS E2PROM designed for a direct interface to port limited microcontroller or I/O limited microprocessor designs. The X84041 provides all of the benefits of serial memo- ries, such as low cost, low power, low voltage operation, and small package size, while featuring higher data transfer rates and reduced interface code requirements— without the need for a dedicated serial bus. The X84041 is organized as a 512 x 8, but is also suitable in 16-bit or 32-bit environments, due to the bit serial nature of the interface. The X84041 directly connects to the processor bus and communicates over a single data line using a sequence of standard bus read and write operations. This elimi- nates the need for dedicated port pins, parallel to serial converters, complicated ASIC implementations, or other glue logic, lowering system cost. FEATURES • Direct Interface to Micros —Eliminates I/O port requirements —No interface glue logic required —Eliminates need for parallel to serial converters • 3.3Mbps data transfer rate • Low Power CMOS —2.7V to 5.5V Operation —Standby Current Less than 50 µA —Active Current Less than 1mA • 45ns Read Access Time • 8-Byte Page Write Mode • Typical Nonvolatile Write Cycle Time: 5ms • High Reliability —100,000 Endurance Cycles —Guaranteed Data Retention: 100 Years • 8-Lead PDIP, 8-Lead SOIC, and 14-Lead TSSOP Packages © Xicor, Inc. 1994, 1995, 1996 Patents Pending Characteristics subject to change without notice 2704-4.4 6/12/96 T3/C1/D0 NS CE I/O H.V. GENERATION TIMING & CONTROL EEPROM ARRAY 512 x 8 COMMAND DECODE AND CONTROL LOGIC X DEC Y DECODE DATA REGISTER WP 2704 ILL F02 OE WE PIN NAMES I/O Data Input/Output CE Chip Enable Input OE Output Enable Input WE Write Enable Input WP Write Protect Input VCC Supply Voltage VSS Ground NC No Connect 2704 PGM T01 PIN CONFIGURATION BLOCK DIAGRAM APPLICATION NOTES AND DEVELOPMENT SYSTEM A V AILABLE AN10 • AN17 • AN57 • XK84 VCC NC OE WE 2704 ILL F01.2 CE I/O WP VSS 1 2 3 4 8 7 6 5 X84041 DIP/SOIC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 2704 ILL F02a.1 TSSOP X84041 CE I/O NC NC NC WP V SS V CC NC NC NC NC OE WE |
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