AT24C512
Table 4. AC Characteristics
Applicable over recommended operating range from T A = – 40 ° C to +85 ° C, V CC = +1.8V to +5.5V, C L = 100 pF (unless oth-
erwise noted) Test conditions are listed in Note 2.
1.8 Volt
2.7 Volt
5.0 Volt
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Units
f SCL
t LOW
t HIGH
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
4.7
4.0
100
1.3
1.0
400
0.4
0.4
1000
kHz
μs
μs
t AA
Clock Low to Data Out Valid
0.1
4.5
0.05
0.9
0.05
0.55
μs
Inputs Rise Time
20 or 5
10 or 5
10 or 5
t BUF
t HD.STA
t SU.STA
t HD.DAT
t SU.DAT
t R
t F
t SU.STO
t DH
t WR
Endurance (1)
Time the bus must be free before a
new transmission can start (1)
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
(1)
Inputs Fall Time (1)
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
5.0V, 25 ° C, Page Mode
4.7
4.0
4.7
0
200
4.7
100
100K
1.0
300
(3)
1.3
0.6
0.6
0
100
0.6
50
100K
0.3
300
(3)
0.5
0.25
0.25
0
100
0.25
50
100K
0.3
100
(3)
μs
μs
μs
μs
ns
μs
ns
μs
ns
ms
Write Cycles
Notes:
1. This parameter is characterized and is not 100% tested.
2. AC measurement conditions:
R L (connects to V CC ): 1.3 k ? (2.7V, 5V), 10 k ? (1.8V)
Input pulse voltages: 0.3V CC to 0.7V CC
Input rise and fall times: ≤ 50 ns
Input and output timing reference voltages: 0.5V CC
3. The Write Cycle Time of 5 ms only applies to the AT24C512 devices bearing the process letter “A” on the package (the mark
is located in the lower right corner on the top side of the package).
5
1116O–SEEPR–1/07
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