25AA020A/25LC020A
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
AC CHARACTERISTICS
Industrial (I):
Automotive (E):
T A = -40°C to +85°C
T A = -40°C to +125°C
V CC = 1.8V to 5.5V
V CC = 2.5V to 5.5V
Param.
No.
17
Sym.
T HH
Characteristic
HOLD Hold Time
Min.
20
Max.
Units
ns
Test Conditions
4.5V ?? V CC ? 5.5V
40
80
ns
ns
2.5V ?? V CC ? 4.5V
1.8V ?? V CC ? 2.5V
18
T HZ
HOLD Low to Output
High-Z
30
60
ns
ns
4.5V ?? V CC ? 5.5V (Note 1)
2.5V ?? V CC ? 4.5V (Note 1)
160
ns
1.8V ?? V CC ? 2.5V (Note 1)
19
T HV
HOLD High to Output
Valid
30
60
ns
ns
4.5V ?? V CC ? 5.5V
2.5V ?? V CC ? 4.5V
160
ns
1.8V ?? V CC ? 2.5V
20
T WC
Internal Write Cycle Time
5
ms
(Note 3)
(byte or page)
21
Endurance
1M
E/W
(N OTE 2)
Cycles
Note 1: This parameter is periodically sampled and not 100% tested.
2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance? Model which can be obtained from Microchip’s web site
at www.Microchip.com.
3: T WC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle
is complete.
TABLE 1-3:
AC Waveform:
V LO = 0.2V
AC TEST CONDITIONS
V HI
= V CC - 0.2V
(Note 1)
V HI = 4.0V
C L = 100 pF
(Note 2)
Timing Measurement Reference Level
Input
Output
Note 1: For V CC ? 4.0V
2: For V CC ? 4.0V
DS21833F-page 4
0.5 V CC
0.5 V CC
? 2003-2011 Microchip Technology Inc.
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