MAX1989MEE+ Maxim Integrated Products, MAX1989MEE+ Datasheet - Page 14

• Manufacturer Part Number: MAX1989MEE+
• Description: IC TEMP SENSOR REMOTE 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1989MEE+

• Function: Thermometer, Thermostat
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -55°C ~ 125°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Full Temp Accuracy: +/- 3.5 C, +/- 5 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 7 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Multichannel Remote/Local
Temperature Sensors
Table 5. Configuration Byte Bit Assignments
*Not available for MAX1805.
Table 6. Status Byte Bit 1 Assignments
†
Note: All flags in this byte stay high until cleared by POR or until the status byte is read.
*Not available for MAX1805.
14
Table 7. Status Byte 2 Bit Assignments
These flags stay high until cleared by POR, or until the status byte register is read.
7 (MSB)
7 (MSB)
7 (MSB)
______________________________________________________________________________________
BIT
BIT
BIT
6
5
4
3
2
0
1
6
5
4
3
2
1
0
6
5
4
3
2
1
0
RUN/STOP
MASKALL
ALARM †
LHIGH †
LLOW †
OPEN †
RHIGH3*
RHIGH4*
MASK4*
MASK3*
NAME
RHIGH1
RHIGH2
RLOW3*
RLOW4*
MASK2
MASK1
BUSY
RLOW1
RLOW2
IBIAS1
IBIAS0
NAME
NAME
N/A
N/A
N/A
A high indicates that the ADC is busy converting.
A high indicates that the local high-temperature alarm has activated.
A high indicates that the local low-temperature alarm has activated.
A high indicates one of the remote-diode continuity (open-circuit) faults.
A high indicates one of the remote-diode channels has over/undertemperature alarm.
N/A
N/A
N/A
A high indicates that the DX1 low-temperature alarm has activated.
A high indicates that the DX1 high-temperature alarm has activated.
A high indicates that the DX2 low-temperature alarm has activated.
A high indicates that the DX2 high-temperature alarm has activated.
A high indicates that the DX3 low-temperature alarm has activated.
A high indicates that the DX3 high-temperature alarm has activated.
A high indicates that the DX4 low-temperature alarm has activated.
A high indicates that the DX4 high-temperature alarm has activated.
POR
0
0
0
0
0
0
0
0
Masks all ALERT interrupts when high.
Standby mode control bit. If high, the device immediately stops converting and
enters standby mode. If low, the device converts.
Masks remote DX4 interrupts when high.
Masks remote DX3 interrupts when high.
Masks remote DX2 interrupts when high.
Masks remote DX1 interrupts when high.
M ed i um /l ow - b i as contr ol b i t. H i g h = l ow b i as, l ow = m ed i um b i as. IBIAS 0 m ust b e l ow .
High-bias control bit. High bias on DXP_ when high. Overrides IBIAS1.
FUNCTION
FUNCTION
FUNCTION