at24c128 ATMEL Corporation, at24c128 Datasheet - Page 5

• Manufacturer Part Number: at24c128
• Description: At24c256
• Manufacturer: ATMEL Corporation

Table 4. AC Characteristics – Industrial Temperatures
Applicable over recommended operating range from T
erwise noted). Test conditions are listed in Note 2.
Notes:
0670T–SEEPR–3/07
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
Endurance
SCL
LOW
HIGH
AA
BUF
HD.STA
SU.STA
HD.DAT
SU.DAT
R
F
SU.STO
DH
WR
1. This parameter is characterized and is not 100% tested.
2. AC measurement conditions:
3. The Write Cycle Time of 5 ms only applies to the AT24C128/256 devices bearing the process letter “B” on the package (the
4. The AT24C128/256 bearing the process letter “B” in the package (the mark is located in the lower right corner on the top
(1)
R
Input pulse voltages: 0.3 V
Input rise and fall times: ≤ 50 ns
Input and output timing reference voltages: 0.5 V
mark is located in the lower right corner on the top side of the package).
side of the package), guarantees 1 million write cycle endurance (1.8 – 3.6V).
L
(connects to V
Parameter
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Clock Low to Data Out Valid
Time the bus must be free before a
new transmission can start
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time
Inputs Fall Time
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
25°C, Page Mode
CC
): 1.3 kΩ (2.5V, 5V), 10 kΩ (1.8V)
(1)
(1)
CC
to 0.7 V
(1)
CC
AI
Min
200
100
4.7
4.0
0.1
4.7
4.0
4.7
4.7
CC
=
0
–
40° C to +85° C, V
1.8-volt
20
Max
100
300
4.5
1.0
or
5
(3)
100k or 1,000,000
0.05
Min
100
1.3
0.6
1.3
0.6
0.6
0.6
50
0
CC
2.5-volt
= +1.8V to +5.5V, CL = 100 pF (unless oth-
10
Max
400
300
0.9
0.3
or
5
(3)
(4)
0.05
0.25
0.25
0.25
Min
100
AT24C128/256
0.4
0.4
0.5
50
0
5.0-volt
10
1000
Max
0.55
100
0.3
or
5
(3)
Cycles
Units
Write
kHz
ms
µs
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
ns
5