X9C102系列数字电位器
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All Xicor nonvolatile memories are designed and tested for applications requiring extended endurance and data retention.
FUNCTIONAL DIAGRAM
U/D
7-BIT
INC
UP/DOWN
The X9C102/103/104/503 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 nonvolatile memory and then be recalled upon a subsequent power-up operation.
CS
COUNTER
7-BIT NONVOLATILE
MEMORY
VCC GND
STORE AND RECALL CONTROL
CIRCUITRY
99
98
97
ONE 96 OF ONEHUNDRED DECODER
2
1
0
VH
TRANSFER GATES
RESISTOR ARRAY
VL VW
3863 FHD F01
E2POT™ is a trademark of Xicor, Inc.
X9C102/103/104/503
PIN DESCRIPTIONS
VH and VL
The high (VH) and low (VL) terminals of the X9C102/103/ 104/503 are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage is –5V and the maximum is +5V. It should be noted that the terminology of VL and VH references the relative position of the terminal in relation to wiper movement direction selected by the U/D input and not the voltage potential on the terminal.
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
VWwk.baidu.com
VW is the wiper terminal, equivalent to the movable terminal of a mechanical potentiometer. The position of the wiper within the array is determined by the control inputs. The wiper terminal series resistance is typically 40Ω.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement and whether the counter is incremented or decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will move the wiper and either increment or decrement the counter in the direction indicated by the logic level on the U/D input.
NOTES AVA I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
XTe9rCm1i0n2a/l1V0o3/l1ta0g4e/5±053V, 100 Taps
X9C102/103/104/503
E2POT™ Nonvolatile Digital Potentiometer
• 100 Year Wiper Position Data Retention • X9C102 = 1KΩ • X9C103 = 10KΩ • X9C503 = 50KΩ • X9C104 = 100KΩ
DESCRIPTION
The Xicor X9C102/103/104/503 is a solid state nonvolatile potentiometer and is ideal for digitally controlled resistance trimming.
• 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
The resolution of the X9C102/103/104/503 is equal to the maximum resistance value divided by 99. As an example, for the X9C503 (50KΩ) each tap point represents 505Ω.
FUNCTIONAL DIAGRAM
U/D
7-BIT
INC
UP/DOWN
The X9C102/103/104/503 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 nonvolatile memory and then be recalled upon a subsequent power-up operation.
CS
COUNTER
7-BIT NONVOLATILE
MEMORY
VCC GND
STORE AND RECALL CONTROL
CIRCUITRY
99
98
97
ONE 96 OF ONEHUNDRED DECODER
2
1
0
VH
TRANSFER GATES
RESISTOR ARRAY
VL VW
3863 FHD F01
E2POT™ is a trademark of Xicor, Inc.
X9C102/103/104/503
PIN DESCRIPTIONS
VH and VL
The high (VH) and low (VL) terminals of the X9C102/103/ 104/503 are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage is –5V and the maximum is +5V. It should be noted that the terminology of VL and VH references the relative position of the terminal in relation to wiper movement direction selected by the U/D input and not the voltage potential on the terminal.
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
VWwk.baidu.com
VW is the wiper terminal, equivalent to the movable terminal of a mechanical potentiometer. The position of the wiper within the array is determined by the control inputs. The wiper terminal series resistance is typically 40Ω.
Up/Down (U/D)
The U/D input controls the direction of the wiper movement and whether the counter is incremented or decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will move the wiper and either increment or decrement the counter in the direction indicated by the logic level on the U/D input.
NOTES AVA I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
XTe9rCm1i0n2a/l1V0o3/l1ta0g4e/5±053V, 100 Taps
X9C102/103/104/503
E2POT™ Nonvolatile Digital Potentiometer
• 100 Year Wiper Position Data Retention • X9C102 = 1KΩ • X9C103 = 10KΩ • X9C503 = 50KΩ • X9C104 = 100KΩ
DESCRIPTION
The Xicor X9C102/103/104/503 is a solid state nonvolatile potentiometer and is ideal for digitally controlled resistance trimming.
• 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
The resolution of the X9C102/103/104/503 is equal to the maximum resistance value divided by 99. As an example, for the X9C503 (50KΩ) each tap point represents 505Ω.