AT24C256B-PU Atmel, AT24C256B-PU Datasheet - Page 5

• Manufacturer Part Number: AT24C256B-PU
• Description: IC EEPROM 256KBIT 1MHZ 8DIP
• Manufacturer: Atmel

Specifications of AT24C256B-PU

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 400kHz, 1MHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3-3.
Applicable over recommended operating range from T
erwise noted). Test conditions are listed in Note 2.
Notes:
5279C–SEEPR–3/09
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Endurance
SCL
LOW
HIGH
i
AA
BUF
HD.STA
SU.STA
HD.DAT
SU.DAT
R
F
SU.STO
DH
WR
1. This parameter is ensured by characterization and is not 100% tested.
2. AC measurement conditions:
(1)
R
Input pulse voltages: 0.3 V
Input rise and fall times:  50 ns
Input and output timing reference voltages: 0.5 V
AC Characteristics (Industrial Temperature)
L
(connects to V
Parameter
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
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, 3.3V
CC
(1)
): 1.3 k (2.5V, 5.5V), 10 k (1.8V)
(1)
CC
(1)
to 0.7 V
(1)
CC
AI
0.05
Min
100
1.3
0.6
1.3
0.6
0.6
0.6
50
0
= 40C to +85C, V
CC
1.8-volt
Max
400
100
300
0.9
0.3
5
1,000,000
0.05
0.25
0.25
0.25
Min
100
0.4
0.4
0.5
50
0
CC
2.5, 5.0-volt
= +1.8V to +5.5V, CL = 100 pF (unless oth-
1000
Max
0.55
100
0.3
50
5
Cycles
Units
Write
kHz
ms
µs
µs
ns
µs
µs
µs
µs
ns
µs
ns
µs
ns
µs
AT24C256B
5