ADT7316ARQ Analog Devices Inc, ADT7316ARQ Datasheet - Page 27

• Manufacturer Part Number: ADT7316ARQ
• Description: IC DGTL TEMP SNSR QUAD DAC16QSOP
• Manufacturer: Analog Devices Inc

Specifications of ADT7316ARQ

• 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
• For Use With: EVAL-ADT7316EBZ - BOARD EVAL FOR ADT7316
• Lead Free Status / RoHS Status: Not Compliant

REGISTERS
The ADT7316/ADT7317/ADT7318 contain registers that are
used to store the results of external and internal temperature
measurements, V
perature and supply voltage limits. They also set output DAC
voltage levels, configure multipurpose pins, and generally
control the device. A description of these registers follows.
The register map is divided into registers of 8 bits. Each register
has its own individual address, but some consist of data that is
linked with other registers. These registers hold the 10-bit con-
version results of measurements taken on the temperature and
V
are stored in V
while the 2 LSBs are stored in Internal Temperature Value/V
Value LSBs Register Address 0x03. These types of registers are
linked in that when the LSB register is read first, the MSB regis-
ters associated with that LSB register are locked out to prevent
any updates. To unlock these MSB registers, the user has only to
read any one of them, which effectively unlocks all previously
locked-out MSB registers. Therefore, for the example given
earlier, if Register 0x03 is read first, MSB Register 0x06 and
Register 0x07 are locked out to prevent any updates to them.
If Register 0x06 is read, then this register and Register 0x07
would be subsequently unlocked.
If an MSB register is read first, its corresponding LSB register is
not locked out, allowing the user to read back only 8 bits (MSB)
of a 10-bit conversion result. Reading an MSB register first does
not lock out other MSB registers, and likewise, reading an LSB
register first does not lock out other LSB registers.
DD
channels. For example, the 8 MSBs of the V
SECOND READ
FIRST READ
COMMAND
COMMAND
DD
DD
Value Register MSBs Register (Address 0x06),
Figure 46. Phase 1 of 10-Bit Read
Figure 47. Phase 2 of 10-Bit Read
value measurements, high and low tem-
UNLOCK ASSOCIATED
LOCK ASSOCIATED
MSB REGISTERS
MSB REGISTERS
REGISTER
REGISTER
MSB
LSB
OUTPUT
OUTPUT
DATA
DATA
DD
measurement
DD
Rev. B | Page 27 of 44
Table 10. List of ADT7316/ADT7317/ADT7318 Registers
RD/WR
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09 to 0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29 to 0x4C
0x4D
0x4E
0x4F
0x50 to 0x7E
0x7F
0x80 to 0xFF
Address
Name
Interrupt Status 1
Interrupt Status 2
Reserved
Internal Temp and V
External Temp LSBs
Reserved
V
Internal Temp MSBs
External Temp MSBs
Reserved
DAC A LSBs
DAC A MSBs
DAC B LSBs
DAC B MSBs
DAC C LSBs
DAC C MSBs
DAC D LSBs
DAC D MSBs
Control Configuration 1
Control Configuration 2
Control Configuration 3
DAC Configuration
LDAC Configuration
Interrupt Mask 1
Interrupt Mask 2
Internal Temp Offset
External Temp Offset
Internal Analog Temp Offset
External Analog Temp Offset
V
V
Internal T
Internal T
External T
External T
Reserved
Device ID
Manufacturer’s ID
Silicon Revision
Reserved
SPI Lock Status
Reserved
(ADT7316/ADT7317 only)
(ADT7316/ADT7317 only)
(ADT7316/ADT7317 only)
(ADT7316/ADT7317 only)
DD
DD
DD
V
V
MSBs
ADT7316/ADT7317/ADT7318
HIGH
LOW
Limit
Limit
HIGH
LOW
HIGH
LOW
Limit
Limit
Limit
Limit
DD
LSBs
Power-On
0x00
0x00
0x00
0x00
0x00
0x00
0xxx
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xD8
0xD8
0xC7
0x62
0x64
0xC9
0xFF
0x00
0x01/0x09/0x05
0x41
0xXx
0x00
0x00
0x00
Default