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| X9521 Datasheet, PDF (20/26 Pages) Xicor Inc. – Dual DCP, EEPROM Memory | |||
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X9521 â Preliminary Information
POTENTIOMETER CHARACTERISTICS
Symbol
RTOL
VRHx
VRLx
Parameter
End to End Resistance Tolerance
RH Terminal Voltage (x=1,2)
RL Terminal Voltage (x=1,2)
PR
Power Rating (1)(6)
RW
DCP Wiper Resistance
IW
Wiper Current (6)
Noise
CH/CL/
CW
twcr
VTRIP
tPU
Absolute Linearity (2)
Relative Linearity (3)
RTOTAL Temperature Coefficient
Potentiometer Capacitances
Wiper Response time (6)
Vcc power up DCP recall threshold
Vcc power up DCP recall delay time (6)
Min.
â20
Vss
Vss
-1
-1
25
Limits
Typ. Max.
+20
VCC
VCC
10
5
200 400
400 1200
4.4
+1
+1
±300
±300
10/10/
25
Units
%
V
V
mW
mW
â¦
â¦
mA
mV /
sqt(Hz)
mV /
sqt(Hz)
MI(4)
MI(4)
ppm/°C
ppm/°C
pF
Test Conditions/Notes
RTOTAL = 10 K⦠(DCP1)
RTOTAL = 100 K⦠(DCP2)
IW = 1mA, VCC = 5 V, VRHx =
Vcc, VRLx = Vss (x=1,2).
IW = 1mA, VCC = 2.7 V, VRHx =
Vcc, VRLx = Vss (x=1,2)
RTOTAL = 10 k⦠( DCP1)
RTOTAL = 100 k⦠(DCP2)
Rw(n)(actual) â Rw(n)(expected)
Rw(n+1) â [Rw(n)+MI]
RTOTAL = 10 k⦠(DCP1)
RTOTAL = 100 k⦠(DCP2)
See Figure 21.
200
µs See Figure 25.
V
50
75
ms
Notes: 1.
Notes: 2.
Notes: 3.
Notes: 4.
Notes: 5.
Notes: 6.
Power Rating between the wiper terminal RWX(n) and the end terminals RHX or RLX - for ANY tap position n, (x=1,2).
Absolute Linearity is utilized to determine actual wiper resistance versus, expected resistance = (Rwx(n)(actual) â
Rwx(n)(expected)) = ±1 Ml Maximum (x=1,2).
Relative Linearity is a measure of the error in step size between taps = RWx(n+1) â [Rwx(n) + Ml] = ±1 Ml (x=0,1,2)
1 Ml = Minimum Increment = RTOT / (Number of taps in DCP - 1).
Typical values are for TA = 25°C and nominal supply voltage.
This parameter is periodically sampled and not 100% tested.
REV 1.1.9 1/30/03
www.xicor.com
Characteristics subject to change without notice. 20 of 26
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