MAX6692MUA+ Maxim Integrated Products, MAX6692MUA+ Datasheet - Page 7

• Manufacturer Part Number: MAX6692MUA+
• Description: IC SENSOR REMOTE SMBUS 8UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX6692MUA+

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 125°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Full Temp Accuracy: +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 10 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Temperature Sensors with Overtemperature Alarms
2) If the MAX6648/MAX6692 are in run mode, read the
Figure 1. SMBus Protocols
Figure 2. SMBus Write Timing Diagram
Write Byte Format
Read Byte Format
Send Byte Format
S = Start condition
P = Stop condition
S
status byte. If the BUSY bit indicates that a conversion
is in progress, wait until the conversion is complete
(BUSY bit set to zero) before reading the temperature
data. Following a conversion completion, immediately
S
S
SMBCLK
SMBDATA
ADDRESS
Slave Address: equiva-
lent to chip-select line
ADDRESS
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
7 bits
Slave Address: equiva-
lent to chip-select line of
a 3-wire interface
7 bits
ADDRESS
t
SU:STA
Precision SMBus-Compatible Remote/Local
7 bits
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
A
WR
t
HD:STA
WR
Shaded = Slave transmission
/// = Not acknowledged
t
LOW
ACK
B
ACK
WR
t
HIGH
Command Byte: sends com-
mand with no data, usually
used for one-shot command
COMMAND
Command Byte: selects
which register you are
reading from
8 bits
COMMAND
t
SU:DAT
8 bits
ACK
C
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER
G = MSB OF DATA CLOCKED INTO MASTER
H = LSB OF DATA CLOCKED INTO MASTER
I = MASTER PULLS DATA LINE LOW
ACK
Command Byte: selects which
register you are writing to
D
ACK
COMMAND
P
8 bits
E
F
S
Receive Byte Format
t
HD:DAT
S
Slave Address: repeated
due to change in data-
flow direction
read the contents of the temperature data registers. If
no conversion is in progress, the data can be read
within a few microseconds, which is a sufficiently short
period of time to ensure that a new conversion cannot
be completed until after the data has been read.
ADDRESS
G
7 bits
ADDRESS
ACK
7 bits
Data Byte: data goes into the register
set by the command byte (to set
thresholds, configuration masks, and
sampling rate)
H
RD
J = ACKNOWLEDGE CLOCKED INTO SLAVE
K = ACKNOWLEDGE CLOCK PULSE
L = STOP CONDITION
M = NEW START CONDITION
DATA
RD
8 bits
I
ACK
J K
ACK
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 Byte: reads from
the register set by the
command byte
DATA
8 bits
DATA
8 bits
ACK
t
SU:STO
L
t
BUF
///
///
M
P
1
P
P
7