X24645P Xicor, X24645P Datasheet - Page 13

• Manufacturer Part Number: X24645P
• Description: Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protection
• Manufacturer: Xicor

X24645
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
Bus Timing
Notes: (5) Typical values are for T
Guidelines for Calculating Typical Values of
Bus Pull-Up Resistors
Bus Timing
Write Cycle Limits
SDA OUT
SDA IN
SDA
SCL
Symbol
(6) t
T
SCL
WR
time the device requires to automatically complete the internal write operation.
WR
120
100
(6)
40
20
80
60
0
is the minimum cycle time to be allowed from the system perspective unless polling techniques are used. It is the maximum
0
t SU:STA
MIN.
RESISTANCE
BUS CAPACITANCE (pF)
20
R MIN =
R MAX =
MAX.
RESISTANCE
WORD n
40
8th BIT
Write Cycle Time
V CC MAX
I OL MIN
C BUS
60
t R
Parameter
A
= 25 C and nominal supply voltage (5V).
80 100 120
=1.8K
t HD:STA
t F
ACK
t AA
2783 ILL F19
t HD:DAT
t HIGH
CONDITION
Min.
STOP
13
t LOW
X24645 bus interface circuits are disabled, SDA is
allowed to remain HIGH, and the device does not
respond to its slave address.
SYMBOL TABLE
t DH
t SU:DAT
t WR
Typ.
WAVEFORM
5
(5)
CONDITION
START
INPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Max.
10
t R
t SU:STO
t BUF
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
2783 ILL F18
2783 ILL F17
Units
ms
2783 FRM T11