STTS751-0DP3F STMicroelectronics, STTS751-0DP3F Datasheet - Page 12

• Manufacturer Part Number: STTS751-0DP3F
• Description: Board Mount Temperature Sensors High-Accuracy 2.25V Digital Temp SNSR
• Manufacturer: STMicroelectronics

Specifications of STTS751-0DP3F

• Full Temp Accuracy: +/- 2 deg C
• Package / Case: UDFN-6L
• Digital Output - Bus Interface: 2 Wire / SMBus
• Digital Output - Number Of Bits: 7
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.25 V
• Description/function: Digital Temperature Sensor
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 50 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SMBus interface
3.6
3.7
Note:
3.8
Table 8.
12/36
Field
Bits
START
1
SMBus addresses
The STTS751 is available in two versions. Each version has 4 slave addresses determined
by the pull-up resistor value connected to the Addr/Therm pin. Refer to
address and recommended resistor values. The device will not respond to an invalid slave
address.
SMBus timeout
The STTS751 supports SMBus timeout which is enabled by default at power-up. This can
be disabled via bit 7 in the timeout register, refer to
When timeout is enabled, the STTS751 will time out after 25 to 35 ms of inactivity.
The STTS751 supports the SMBus timeout feature. If the host holds SCL low or the device
drives SDA low for more than t
This feature is turned on by default. The STTS751 also supports timeout while in standby
mode and when the device is driving SDA low.
The STTS751 never drives the clock line and it does not support clock stretching.
Alert response address
The STTS751supports the SMBus alert response address (ARA) protocol. In the event of
an out-of-limit temperature measurement, the EVENT output will be asserted. In response,
the host (supporting the ARA protocol) will send the SMBus Alert Response Address to the
general (slave) address of 0001_100b. All devices with active interrupts will respond with
their client addresses as shown in
The STTS751 will acknowledge the ARA and respond with its slave device address.
shows the ARA transfer. See
SMBus protocol response to ARA
RESPONSE
ADDRESS
ALERT
7
RD
1
Section 5
Doc ID 16483 Rev 5
TIMEOUT
Table 1 on page 1
ACK
(max), the STTS751 resets and releases the bus.
for more information.
1
ADDRESS
STTS751
Section 4.11: SMBus timeout
SLAVE
(with the LSB bit set to 0).
8
NACK
1
Table 1
for valid
STOP
register.
STTS751
1
Table 8