X9C102/103/104/503DESCRIPTIONThe Xicor X9C102/103/104/503 is a solid state nonvola-tile potentiometer and is ideal for digitally controlledresistance trimming.The X9C102/103/104/503 is a resistor array composed of99 resistive elements. Between each element and ateither 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 bestored in nonvolatile memory and then be recalled upon asubsequent power-up operation.The resolution of the X9C102/103/104/503 is equal tothe maximum resistance value divided by 99. As anexample, for the X9C503 (50K Ω) each tap point repre-sents 505Ω.All Xicor nonvolatile memories are designed and testedfor applications requiring extended endurance and dataretention.FEATURES• Compatible with X9102/103/104/503• Low Power CMOS—VCC = 5V—Active Current, 3mA Max—Standby Current, 500µA Max• 99 Resistive Elements—Temperature Compensated—± 20% End to End Resistance Range• 100 Wiper Tap Points—Wiper Positioned via Three-Wire Interface—Similar to TTL Up/Down Counter—Wiper Position Stored in NonvolatileMemory and Recalled on Power-Up• 100 Year Wiper Position Data Retention• X9C102 = 1KΩ• X9C103 = 10KΩ• X9C503 = 50KΩ• X9C104 = 100KΩE2POT™ Nonvolatile Digital PotentiometerX9C102/103/104/503E2POT™ is a trademark of Xicor, Inc.3863 FHD F01FUNCTIONAL DIAGRAM7-BITUP/DOWNCOUNTER7-BITNONVOLATILEMEMORYSTORE AND RECALLCONTROLCIRCUITRYONE OFONE-HUNDREDDECODERRESISTORARRAY99989796210VLVWVHU/DINCCSVCCGNDTRANSFERGATESTerminal Voltage ±5V, 100 Taps NOTESA V A I L A B L EAN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73X9C102/103/104/503PIN DESCRIPTIONSVH and VLThe high (VH) and low (VL) terminals of the X9C102/103...
