ADT7317ARQ Analog Devices Inc, ADT7317ARQ Datasheet - Page 28

• Manufacturer Part Number: ADT7317ARQ
• Description: IC DGTL TEMP SNSR QUAD DAC16QSOP
• Manufacturer: Analog Devices Inc

Specifications of ADT7317ARQ

• Rohs Status: RoHS non-compliant
• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 120°C, External Sensor
• Output Type: I²C™, MICROWIRE™, QSPI™, SMBus™, SPI™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 120°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / Rohs Status: Not Compliant

ADT7316/ADT7317/ADT7318
REGISTER DESCRIPTIONS
The bit maps in this section show the register default settings at
power-up, unless otherwise noted.
Interrupt Status 1 Register (Read-Only) [Address 0x00]
This 8-bit, read-only register reflects the status of some of the
interrupts that can cause the INT/ INT pin to go active. This
register is reset by a read operation, provided that any out-of-
limit event has been corrected. It is also reset by a software reset.
Table 11. Interrupt Status 1 Register
D7
N/A
1
Table 12. Interrupt Status 1 Register
Bit
D0
D1
D2
D3
D4
Interrupt Status 2 Register (Read-Only) [Address 0x01]
This 8-bit, read-only register reflects the status of the V
interrupt that can cause the INT/ INT pin to go active. This
register is reset by a read operation, provided that any out-of-
limit event has been corrected. It is also reset by a software reset.
Table 13. Interrupt Status 2 Register
D7
N/A
1
Table 14. Interrupt Status 2 Register Bit Descriptions
Bit
D4
Internal Temperature Value/V
(Read-Only) [Address 0x03]
This 8-bit, read-only register stores the 2 LSBs of the 10-bit
temperature reading from the internal temperature sensor
and the 2 LSBs of the 10-bit supply voltage reading.
Default settings at power-up.
Default settings at power-up.
Function
1 when internal temperature value exceeds T
1 when internal temperature value exceeds T
1 when external temperature value exceeds T
1 when external temperature value exceeds T
1 indicates a fault (open or short) for the external
Function
1 when V
1 when V
internal temperature reading greater than the limit set
causes an out-of-limit event.
internal temperature reading less than or equal to the
limit set causes an out-of-limit event.
default value for this limit register is –1°C, so any external
temperature reading greater than the limit set causes an
out-of-limit event.
default value for this limit register is 0°C, so any external
temperature reading less than or equal to the limit set
causes an out-of-limit event.
temperature sensor.
limit.
limit.
D6
N/A
D6
N/A
DD
DD
D5
N/A
value is greater than the corresponding V
is less than or equal to the corresponding V
D5
N/A
D4
0
1
D4
0
1
DD
D3
N/A
Value Register LSBs
D3
0
1
D2
N/A
D2
0
1
D1
N/A
HIGH
LOW
HIGH
LOW
D1
0
1
limit. Any
DD
limit. Any
limit. The
limit. The
HIGH
D0
N/A
D0
0
LOW
Rev. B | Page 28 of 44
1
Table 15. Internal Temperature/V
D7
N/A
N/A
1
Table 16. Internal Temperature/V
Bit
D0
D1
D2
D3
External Temperature Value Register LSBs (Read-Only)
[Address 0x04]
This 8-bit, read-only register stores the 2 LSBs of the 10-bit
temperature reading from the external temperature sensor.
Table 17. External Temperature LSBs
D7
N/A
N/A
1
Table 18. External Temperature LSBs Bit Descriptions
Bit
D0
D1
V
This 8-bit, read-only register stores the supply voltage value.
The 8 MSBs of the 10-bit value are stored in this register.
Table 19. V
D7
V9
X
1
Internal Temperature Value Register MSBs (Read-Only)
[Address 0x07]
This 8-bit, read-only register stores the internal temperature
value from the internal temperature sensor in twos complement
format. The 8 MSBs of the 10-bit value are stored in this register.
Table 20. Internal Temperature Value MSBs
D7
T9
0
1
Loaded with V
Default settings at power-up.
Default settings at power-up.
Default settings at power-up.
1
1
DD
Value Register MSBs (Read-Only) [Address 0x06]
D6
V8
X
D6
T8
0
D6
N/A
N/A
D6
N/A
N/A
Function
LSB of internal temperature value.
B1 of internal temperature value.
LSB of V
B1 of V
Function
LSB of external temperature value.
B1 of external temperature value.
1
1
DD
DD
Value MSBs
value after power-up.
DD
DD
D5
V7
X
D5
T7
0
D5
N/A
N/A
D5
N/A
N/A
1
value.
1
value.
D4
V6
X
D4
T6
0
D4
N/A
N/A
1
D4
N/A
N/A
1
D3
V5
X
D3
T5
0
D3
N/A
N/A
1
1
D3
V1
0
DD
DD
1
LSBs
LSBs Bit Descriptions
D2
V4
X
D2
T4
0
D2
LSB
0
D2
N/A
N/A
1
1
1
D1
V3
X
D1
T3
0
D1
T1
0
D1
T1
0
1
1
1
1
D0
LSB
0
D0
V2
X
D0
T2
0
D0
LSB
0
1
1
1
1