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X9312TPI Datasheet(PDF) 1 Page - Xicor Inc. |
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X9312TPI Datasheet(HTML) 1 Page - Xicor Inc. |
1 / 9 page X9312 1 ©Xicor, Inc. 1994, 1995 Patents Pending Characteristics subject to change without notice 3865-2.4 12/1/95 T1/C0/D0 NS E2POT™ is a trademark of Xicor, Inc. DESCRIPTION The Xicor X9312 is a solid state nonvolatile potentiom- eter and is ideal for digitally controlled resistance trim- ming. The X9312 is a resistor array composed of 99 resistive elements. Between each element and at either end are tap points accessible to the wiper element. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvola- tile memory and then be recalled upon a subsequent power-up operation. The resolution of the X9312 is equal to the maximum resistance value divided by 99. As an example, for the X9312U (50K Ω) each tap point represents 505Ω. All Xicor nonvolatile memories are designed and tested for applications requiring extended endurance and data retention. FEATURES • Compatible with X9C102/103/104/503 • Low Power CMOS —Active Current, 3mA Max —Standby Current, 1mA Max • 99 Resistive Elements —Temperature Compensated — ±20% End to End Resistance Range — 0 to +15V Range • 100 Wiper Tap Points —Wiper Positioned via Three-Wire Interface —Similar to TTL Up/Down Counter —Wiper Position Stored in Nonvolatile Memory and Recalled on Power-Up • 100 Year Wiper Position Data Retention • X9312Z = 1K Ω • X9312W = 10K Ω • X9312U = 50K Ω • X9312T = 100K Ω FUNCTIONAL DIAGRAM 7-BIT UP/DOWN COUNTER 7-BIT NONVOLATILE MEMORY STORE AND RECALL CONTROL CIRCUITRY ONE OF ONE- HUNDRED DECODER RESISTOR ARRAY 99 98 97 96 2 1 0 VL VW VH U/D INC CS VCC GND TRANSFER GATES 3865 FHD F01 E2POT™ Nonvolatile Digital Potentiometer X9312 Terminal Voltage 0V to +15V, 100 Taps APPLICATION NOTES A V AILABLE AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73 |
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