x40620 Intersil Corporation, x40620 Datasheet - Page 12

• Manufacturer Part Number: x40620
• Description: Dual Voltage Cpu Supervisor With 64k Serial Eeprom
• Manufacturer: Intersil Corporation

TIMING DIAGRAMS
Bus Timing
Write Cycle Timing
GUIDELINES FOR CALCULATING TYPICAL VALUES OF BUS PULL UP RESISTORS
X40620
SDA OUT
SDA IN
SDA
SCL
SCL
t
SU:STA
t
R
10
8
6
4
2
8th Bit of Last Byte
RMIN
Bus capacitance in pF
10
R
t
HD:STA
PMAX
20
30
t
F
40
t
SU:DAT
50
t
ACK
HIGH
t
LOW
For V
t
RMAX
t
HD:DAT
IH
R
= maximum allowable SDA rise time
R
V IH
PMAX
= 0.9V
MIN
Condition
Stop
=
=
CC
Vcc 1 e
=
V
---------------------------------------- -
------------------------------ -
2.3 C
CCMAX






I
OLMIN
(
–
t
t
AA
R
BUS
---------------------------------------
R PMAX C BUS
t
Characteristics subject to change without notice.
WC
–
–
t
)
0.4
DH
t RMAX
=
1100 Ω
Condition
Start






t
BUF
t
SU:STO
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