TCM1617 datasheet(4/14 Pages) MICROCHIP

4 / 14 page

SMBus Thermal Sensor with External Diode Input

TCM1617

TCM1617-1

2/5/99

 2001 Microchip Technology Inc.

DS21485A

SMBUS Write Timing Diagram

SMBUS Read Timing Diagram

SMBUS THERMAL S

tSU(START) tH(START)

tSU-DATA

tH-DATA

tSU(STOP) tIDLE

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 Slave

H = LSB of Data Clocked into Slave

I = Slave Pulls SDA Line Low

J = Acknowledge Clocked into Master

K = Acknowledge Clock Pulse

L = Stop Condition, Data Executed by Slave

M = New Start Condition

ILOW

IHIGH

SCL

SDA

tSU(START)

tH(START)

tSU-DATA

tSU(STOP)

tIDLE

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

ILOW

IHIGH

I = Acknowledge Clock Pulse

J = Stop Condition

K = New Start Condition

SCL

SDA

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