X24C01AS8 データシートの表示（PDF） - Unspecified
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X24C01AS8 Datasheet PDF : 13 Pages
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X24C01A
WRITE CYCLE LIMITS
Symbol
Parameter
tWR(6)
Write Cycle Time
Min.
Typ.(5)
5
Max.
10
Units
ms
3841 PGM T10
The write cycle time is the time from a valid stop
condition of a write sequence to the end of the internal
erase/program cycle. During the write cycle, the X24C01A
bus interface circuits are disabled, SDA is allowed to remain
high, and the device does not respond to its slave address.
Write Cycle Timing
SCL
SDA
8th BIT
WORD n
ACK
STOP
CONDITION
t
WR
START
CONDITION
X24C01A
ADDRESS
3841 FHD F04
Notes:(5) Typical values are for T A = 25°C and nominal supply voltage (5V).
(6) tWR is the minimum cycle time from the system perspective when polling techniques are not used. It is the maximum time the device
requires to perform the internal write operation.
Guidelines for Calculating Typical Values of Bus
Pull-Up Resistors
120
100
80
60
40
V
R
MIN
= CC MAX
I
OL MIN
R
MAX
t
=R
C
BUS
MAX.
RESISTANCE
=1.8KΟ
20 MIN.
RESISTANCE
0
0 20 40 60
80100120
BUS CAPACITANCE (pF) 3841 FHD F16
SYMBOL TABLE
WAVEFORM
INPUTS
Must be
steady
May change
from Low to
High
May change
from High to
Low
Don’t Care:
Changes
Allowed
N/A
OUTPUTS
Will be
steady
Will change
from Low to
High
Will change
from High to
Low
Changing:
State Not
Known
Center Line
is High
Impedance
10
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