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PDF X9312 Data sheet ( Hoja de datos )
| Número de pieza | X9312 | |
| Descripción | E2POT Nonvolatile Digital Potentiometer | |
| Fabricantes | Xicor | |
| Logotipo |  |
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APPLICATION NOTES
AVA I L A B L E
AN42 • AN44–48 • AN50 • AN52 • AN53 • AN71 • AN73
TXe9r3m12inal Voltage 0V to +15V, 100 Taps
X9312
E2POT™ Nonvolatile Digital Potentiometer
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 = 1KΩ
• X9312W = 10KΩ
• X9312U = 50KΩ
• X9312T = 100KΩ
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 (50KΩ) each tap point represents 505Ω.
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
CS COUNTER
7-BIT
NONVOLATILE
MEMORY
VCC
GND
STORE AND
RECALL
CONTROL
CIRCUITRY
E2POT™ is a trademark of Xicor, Inc.
©Xicor, Inc. 1994, 1995 Patents Pending
3865-2.4 12/1/95 T1/C0/D0 NS
99
98
97
ONE 96
OF
ONE-
HUNDRED
DECODER
2
1
0
VH
TRANSFER
GATES
RESISTOR
ARRAY
VL
VW
3865 FHD F01
Characteristics subject to change without notice
1
1 page  
X9312
RECOMMENDED OPERATING CONDITIONS
Temperature
Commercial
Industrial
Military
Min.
0°C
–40°C
–55°C
Max.
+70°C
+85°C
+125°C
3865 PGM T03.1
Supply Voltage
X9312
Limits
5V ±10%
3865 PGM T04.1
D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified.)
Symbol
Parameter
ICC VCC Active Current
ISB Standby Supply Current
ILI
VIH
VIL
RW
VVH
VVL
CIN(5)
CS, INC, U/D Input
Leakage Current
CS, INC, U/D Input
HIGH Voltage
CS, INC, U/D Input
LOW Voltage
Wiper Resistence
VH Terminal Voltage
VL Terminal Voltage
CS, INC, U/D Input
Capacitance
Min.
Limits
Typ.(4)
1
500
Max.
3
1000
±10
Units
mA
µA
µA
Test Conditions
CS = VIL, U/D = VIL or VIH and
INC = 0.4V/2.4V @ max. tCYC
CS = VCC – 0.3V, U/D and INC =
VSS or VCC – 0.3V
VIN = VSS to VCC
2 VCC + 1 V
–1 0.8 V
40 100 Ω Max. Wiper Current ±1mA
0 15 V
0 15 V
10 pF VCC = 5V, VIN = VSS,
TA = 25°C, f = 1MHz
3865 PGM T05.3
STANDARD PARTS
Part Number
Maximum Resistance
X9312Z
X9312W
X9312U
X9312T
1KΩ
10KΩ
50KΩ
100KΩ
Notes: (4) Typical values are for TA = 25°C and nominal supply voltage.
(5) This parameter is periodically sampled and not 100% tested.
Wiper Increments
10.1Ω
101Ω
505Ω
1010Ω
Minimum Resistance
40Ω
40Ω
40Ω
40Ω
3865 PGM T08.1
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet X9312.PDF ] | |
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