MAX1617 データシートの表示（PDF） - ON Semiconductor

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MAX1617

SMBus Temperature Sensor with Internal and External Diode Input

ON Semiconductor 

MAX1617

SMBus PORT AC TIMING (VDD = 3.3 V, –55°C ≤ (TA = TJ) ≤ 125°C; CL = 80 pF, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

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)

fSMB

10

–

tLOW

4.7

–

tHIGH

4.0

–

tR

–

–

tF

–

–

tSU(START)

4.0

–

Start Condition Hold Time

Data in Setup Time

Data in Hold Time

Stop Condition Setup Time

Bus Free Time Prior to New Transition

tH(START)

4.0

–

tSU–DATA

1,000

–

tH–DATA

1,250

–

tSU(STOP)

4.0

–

tIDLE

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

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