5
FN8183.7
March 7, 2012
Endurance and Data Retention VCC = 5V ±10%, TA = Full Operating Temperature Range.
PARAMETER
MIN
UNIT
Minimum Endurance
100,000
Data changes per bit
Data Retention
100
Years
NOTES:
4. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage = [V(RW(n)(actual))-V(RW(n)(expected))]/MI
V(RW(n)(expected)) = n(V(RH)-V(RL))/99 + V(RL), with n from 0 to 99.
5. Relative linearity is a measure of the error in step size between taps = [V(RW(n+1))-(V(RW(n)) - MI)]/MI.
6. 1 Ml = Minimum Increment = [V(RH)-V(RL)]/99.
7. Typical values are for TA = +25°C and nominal supply voltage.
8. This parameter is not 100% tested.
9. Ratiometric temperature coefficient = (V(RW)T1(n)-V(RW)T2(n))/[V(RW)T1(n)(T1-T2) x 10
6], with T1 and T2 being 2 temperatures, and n from 0
to 99.
10. Measured with wiper at tap position 99, RL grounded, using test circuit.
11. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
Test Circuit
Equivalent Circuit
FORCE
CURRENT
TEST POINT
RW
CH
CL
RW
10pF
RTOTAL
CW
25pF
RH
RL
AC Conditions of Test
Input pulse levels
0V to 3V
Input rise and fall times
10ns
Input reference levels
1.5V
AC Electrical Specifications
VCC = 5V ±10%, TA = Full Operating Temperature Range, unless otherwise stated.
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
tCl
CS to INC Setup
50
ns
INC HIGH to U/D Change
100
ns
U/D to INC Setup
1
s
tlL
INC LOW Period
960
ns
tlH
INC HIGH Period
960
ns
tlC
INC Inactive to CS Inactive
1
s
tCPHS
CS Deselect Time (STORE)
10
ms
tCPHNS
CS Deselect Time (NO STORE)
100
ns
tIW
INC to RW Change
1
5
s
tCYC
INC Cycle Time
2
s
tR, tF
INC Input Rise and Fall Time
500
s
Power-up to Wiper Stable
5s
tR VCC
VCC Power-up Rate
0.2
50
V/ms
tWR
Store Cycle
510
ms
X9317