MAX1617 Datasheet, PDF (5/12 Pages) ON Semiconductor – SMBus Temperature Sensor with Internal and External Diode Input

MAX1617
SMBus PORT AC TIMING (VDD = 3.3 V, –55°C ≤ (TA = TJ) ≤ 125°C; CL = 80 pF, unless otherwise noted.)
Symbol
Characteristic
Min
Typ
fSMB
tLOW
tHIGH
tR
tF
tSU(START)
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)
(for Repeated Start Condition)
10
—
4.7
—
4
—
—
—
—
—
4
—
tH(START)
tSU–DATA
tH–DATA
tSU(STOP)
tIDLE
Start Condition Hold Time
Data in Setup Time
Data in Hold Time
Stop Condition Setup Time
Bus Free Time Prior to New Transition
4
—
1,000
—
1,250
—
4
—
4.7
—
SMBUS Write Timing Diagram
A
B
C
D
EF
G
ILOW IHIGH
SCL
H
IJ
Max
100
—
—
1,000
300
—
—
—
—
—
—
Unit
kHz
msec
msec
nsec
nsec
msec
msec
nsec
nsec
msec
msec
K
LM
SDA
t _SU(START) t _H(START)
t _SU–DATA
t _H–DATA
t _SU(STOP) t _IDLE
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
F = Acknowledge Bit Clocked into Master J = Acknowledge Clocked into Master
G = MSB of Data Clocked into Slave
K = Acknowledge Clock Pulse
H = LSB of Data Clocked into Slave
L = Stop Condition, Data Executed by Slave
I = Slave Pulls SDA Line Low
M= New Start Condition
SMBUS Read Timing Diagram
A
B
C
D
EF
G
ILOW IHIGH
SCL
H
I
JK
SDA
t _SU(START) t _H(START)
t _SU–DATA
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
F = Acknowledge Bit Clocked into Master
G = MSB of Data Clocked into Master
H = LSB of Data Clocked into Master
t _SU(STOP) t _IDLE
I = Acknowledge Clock Pulse
J = Stop Condition
K = New Start Condition
http://onsemi.com
5