24LC256 MicrochipTechnology, 24LC256 Datasheet - Page 3

• Manufacturer Part Number: 24LC256
• Description: 256KI2CCMOSSerialEEPROM
• Manufacturer: MicrochipTechnology

TABLE 1-3
All parameters apply across the spec-
ified operating ranges unless other-
wise noted.
Clock frequency
Clock high time
Clock low time
SDA and SCL rise time
(Note 1)
SDA and SCL fall time
START condition hold time
START condition setup time
Data input hold time
Data input setup time
STOP condition setup time
WP setup time
WP hold time
Output valid from clock
(Note 2)
Bus free time: Time the bus must be
free before a new transmission can
start
Output fall time from V
minimum to V
Input filter spike suppression
(SDA and SCL pins)
Write cycle time (byte or page)
Endurance
Note 1:
1998 Microchip Technology Inc.
2:
3:
4:
As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum
The combined T
This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific application, please
Not 100% tested. C
300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions.
suppression. This eliminates the need for a TI specification for standard operation.
consult the Total Endurance Model which can be obtained on Microchip’s BBS or website.
Parameter
IL
maximum
AC CHARACTERISTICS
IH
SP
and V
B
= total capacitance of one bus line in pF.
HYS
Industrial (I):
Automotive (E): V
specifications are due to new Schmitt trigger inputs which provide improved noise spike
T
T
T
T
T
Symbol
T
T
T
T
HD
HD
SU
SU
SU
T
F
SU
HD
T
T
T
T
HIGH
LOW
T
T
BUF
CLK
WC
OF
AA
SP
:
:
:
:
:
R
F
:
:
DAT
STO
STA
STA
DAT
WP
WP
100,000
4000
4000
4700
4700
1300
4000
4000
4700
4700
4000
4000
4000
4000
4700
4700
1300
4700
4700
1300
600
600
600
250
250
100
600
600
Min
10
—
—
—
—
—
—
—
—
—
—
—
—
0
V
CC
CC
= +1.8V to 5.5V
= +4.5V to 5.5V
1000
1000
3500
3500
Max
100
100
400
300
300
900
250
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
cycles
Units
kHz
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
24AA256/24LC256
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
(Note 1)
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
(Note 2)
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
4.5V
1.8V
2.5V
C
(Notes 1 and 3)
25 C, V
B
Tamb = -40 C to +85 C
Tamb = -40 C to 125 C
100 pF (Note 1)
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 5.0V, Block Mode (Note 4)
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
5.5V (E Temp range)
2.5V
5.5V
Conditions
DS21203C-page 3