MAX1617 ON Semiconductor, MAX1617 Datasheet - Page 5

• Manufacturer Part Number: MAX1617
• Description: SMBus Temperature Sensor with Internal and External Diode Input
• Manufacturer: ON Semiconductor

SMBus PORT AC TIMING (V DD = 3.3 V, –55 C
f SMB
t LOW
t HIGH
t R
t F
t SU(START)
t H(START)
t SU–DATA
t H–DATA
t SU(STOP)
t IDLE
SCL
SDA
SCL
SDA
A = Start Condition
B = MSB of Address Clocked into Slave
C = LSB of Address Clocked into Slave
D = R/W Bit Clocked into Slave
A = Start Condition
B = MSB of Address Clocked into Slave
C = LSB of Address Clocked into Slave
D = R/W Bit Clocked into Slave
E = Slave Pulls SDA Line Low
Symbol
SMBUS Write Timing Diagram
SMBUS Read Timing Diagram
t SU(START) t H(START)
t SU(START) t H(START)
A
A
SMBus Clock Frequency
Low Clock Period (10% to 10%)
High Clock Period (90% to 90%)
SMBus Rise Time (10% to 90%)
SMBus Fall Time (90% to 10%)
Start Condition Setup Time (90% SCL to 10% SDA)
Start Condition Hold Time
Data in Setup Time
Data in Hold Time
Stop Condition Setup Time
Bus Free Time Prior to New Transition
(for Repeated Start Condition)
I LOW
I LOW I HIGH
B
B
I HIGH
t SU–DATA
t SU–DATA
C
C
Characteristic
F = Acknowledge Bit Clocked into Master
G = MSB of Data Clocked into Slave
H = LSB of Data Clocked into Slave
I = Slave Pulls SDA Line Low
E = Slave Pulls SDA Line Low
F = Acknowledge Bit Clocked into Master
G = MSB of Data Clocked into Master
H = LSB of Data Clocked into Master
(T A = T J )
D
D
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MAX1617
125 C; C L = 80 pF, unless otherwise noted.)
E F
E F
5
t H–DATA
G
G
J = Acknowledge Clocked into Master
K = Acknowledge Clock Pulse
L = Stop Condition, Data Executed by Slave
M= New Start Condition
1,000
1,250
Min
4.7
4.7
10
—
—
H
4
4
4
4
H
I = Acknowledge Clock Pulse
J = Stop Condition
K = New Start Condition
I
I J
Typ
—
—
—
—
—
—
—
—
—
—
—
t SU(STOP)
K
t SU(STOP) t IDLE
1,000
Max
100
300
—
—
—
—
—
—
—
—
J
L
t IDLE
K
M
m
m
nsec
nsec
m
m
nsec
nsec
m
m
Unit
kHz
sec
sec
sec
sec
sec
sec