M24256-BWMW6T STMicroelectronics, M24256-BWMW6T Datasheet - Page 28

• Manufacturer Part Number: M24256-BWMW6T
• Description: IC EEPROM 256KBIT 400KHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M24256-BWMW6T

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC and AC parameters
28/42
Table 16.
1. All values are referred to V
2. Characterized only, not tested in production.
3. With Cbus = 10 pF.
4. There is no min. or max. values for the input signal rise and fall times. It is however recommended by the
5. The I²C-bus specification does not define a min value of the data hold time (t
6. t
7.
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
CHCL
CLCH
QL1QL2
XH1XH2
XL1XL2
DXCX
CLDX
CLQX
CLQV
CHDL
DLCL
CHDH
DHDL
W
NS
Symbol
I²C-bus specification that the input signal rise and fall times be more than 20 ns and less than 300 ns
when f
t
falling edge SCL.
0.7V
(7)
CLQX
CLQV
Characterized only, not tested in production.
(5)
(6)
CC
(2)
is the time (from the falling edge of SCL) required by the SDA bus line to reach either 0.3V
C
(Data out hold time) of the M24xxx devices offers a safe timing to bridge the undefined region of the
, assuming that R
< 400 kHz.
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SCL
HIGH
LOW
F
R
F
SU:DAT
HD:DAT
DH
AA
SU:STA
HD:STA
SU:STO
BUF
WR
400 kHz AC characteristics
Alt.
Clock frequency
Clock pulse width high
Clock pulse width low
SDA (out) fall time
Input signal rise time
Input signal fall time
Data in set up time
Data in hold time
Data out hold time
Clock low to next data valid (access time)
Start condition setup time
Start condition hold time
Stop condition set up time
Time between Stop condition and next Start
condition
Write time
Pulse width ignored (input filter on SCL and
SDA)
Test conditions specified in tables 7, 8,
bus
IL
(max) and V
× C
bus
Doc ID 6757 Rev 23
time constant is within the values specified in
IH
Parameter
(min).
M24256-BF, M24256-BR, M24256-BW, M24256-DR
9
and
HD;DAT
600
1300
20
(4)
(4)
100
0
100
600
600
600
1300
Min.
10
(3)
Figure
(1)
). The min value of
400
120
(4)
(4)
900
5
80
5.
Max.
(1)
CC
or
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
Unit