MAX6652AUB Maxim Integrated Products, MAX6652AUB Datasheet - Page 11

• Manufacturer Part Number: MAX6652AUB
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of MAX6652AUB

• Full Temp Accuracy: +/- 2 C
• Package / Case: uSOP
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 7 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 2. I
Figure 3. I
SMBCLK
SMBDATA
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 SMBDATA LINE LOW
Write Byte Format
Read Byte Format
Send Byte Format
S = Start condition
P = Stop condition
S
S
2
2
S
C/SMBus Protocols
C/SMBus Write Timing Diagram
t
SU:STA
ADDRESS
Slave Address: equiva-
lent to chip-select line
ADDRESS
7 bits
A
7 bits
Slave Address: equiva-
lent to chip-select line of
a 3-wire interface
t
HD:STA
Temperature Sensor and System Monitor
ADDRESS
______________________________________________________________________________________
7 bits
t
LOW
WR
Shaded = Slave transmission
A = Not acknowledged
WR
B
t
HIGH
ACK
ACK
WR
Data Byte: writes data to the
register commanded by the
last read byte or write byte
transmission
COMMAND
t
SU:DAT
8 bits
Command Byte: selects
which register you are
reading from
C
COMMAND
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER
G = MSB OF DATA CLOCKED INTO SLAVE
H = LSB OF DATA CLOCKED INTO SLAVE
I = MASTER PULLS DATA LINE LOW
8 bits
ACK
ACK
D
Command Byte: selects which
register you are writing to
ACK
COMMAND
P
8 bits
E
F
S
Receive Byte Format
S
Slave Address: repeated
due to change in data-
flow direction
t
HD:DAT
ADDRESS
7 bits
ADDRESS
ACK
G
7 bits
in a 10-Pin µMAX
Data Byte: data goes into the register
set by the co mma nd byte ( to se t
thresholds, configuration masks, and
sampling rate)
RD
DATA
8 bits
RD
H
ACK
J = ACKNOWLEDGE CLOCKED INTO SLAVE
K = ACKNOWLEDGE CLOCK PULSE
L = STOP CONDITION
M = NEW START CONDITION
ACK
I
Data Byte: reads from
the register set by the
command byte
Data Byte: reads data from
the register commanded
by the last read byte or
write byte transmission;
also used for SMBus alert
response return address
DATA
8 bits
J
DATA
8 bits
ACK
K
A
A
t
SU:STO
P
P
P
L
t
BUF
M
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