MAX1617(2000) 查看數據表（PDF） - ON Semiconductor

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MAX1617
(Rev.:2000)

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.)

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

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