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| U3280M Datasheet, PDF (14/18 Pages) ATMEL Corporation – TRANSPONDER INTERFACE FOR MICROCONTROLLER | |||
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AC Characteristics (Continued)
Supply voltage VDD = 1.8 V to 6.5 V, VSS = 0 V, Tamb = -40° C to 85° C unless otherwise specified
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
EEPROM
Endurance
Data erase/write cycle time
Data retention time
Power up to read operation
Power up to write operation
Reset
Erase/write cycles
For 16-bit access
Tamb = 25° C
ED
500000
tDEW
9
tDR
10
tPUR
tPUw
Power-on reset
NRST
VDDrise = 0 to 2 V
VIl < 0.2 VDD
trise
tres
1
Max.
Unit
Cycles
12
ms
years
0.2
ms
0.2
ms
10
ms
µs
Figure 8. Typical Reset Delay After Switching VDD On
600
500
400
300
VDD
NRST
tRESDEL
200
100
0
1.0
2.0
3.0
4.0
VDD (V)
5.0
6.0
Figure 9. Typical Reset Delay After Switching VDD On
5.5
5 ms
5.0
VDD
NRST
4.5
tRESDEL
4.0
3.5
3.0
2.5
1.0
2.0
3.0
4.0
5.0
6.0
VDD (V)
14 U3280M
4688BâRFIDâ12/04
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