MAX6663AEE+ Maxim Integrated Products, MAX6663AEE+ Datasheet - Page 17

• Manufacturer Part Number: MAX6663AEE+
• Description: IC TEMP MON FAN CNTRL 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6663AEE+

• Function: Fan Control, Temp Monitor
• Topology: ADC, Multiplexer, Register Bank, Tachometer
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Full Temp Accuracy: +/- 1 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 11 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Addr(H)
0D
1C
0A
0B
0E
10
14
15
16
18
19
1A
1B
READ/WRITE POR STATE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
______________________________________________________________________________________
0001 1110
0001 1110
0000 0000
0000 0000
1111 1111
0011 1100
0000 0000
0100 0110
0101 0000
0000 0000
0110 0100
0101 1111
0111 1101
(100°C)
(125°C)
(30°C)
(30°C)
(60°C)
(70°C)
(80°C)
(95°C)
(0°C)
(0°C)
Local temperature data:
This register contains the 8 MSBs of the local temperature measurement.
Remote temperature data:
This register contains the 8 MSBs of the local temperature measurement.
Local temperature offset:
Bit 7: Sign bit; when zero, the offset value in bits [3:0] is added to the measured local
Bits [6:4] Unused. This bits normally reads back zeros.
Bits [3:0] Offset value. This is added to or subtracted from the measured local
Remote temperature offset:
Bit 7: Sign bit: When 0, the offset value in bits [3:0] is added to the measured remote
Bits [6:4] Unused: These bits normally read back zeros.
Bits [3:0] Offset value: This is added to or subtracted from the measured remote
Fan tachometer high-limit register:
Contains the limit of the fan-speed measurement. It detects a stalled fan if the
measured fan-speed data (reg_08h; proportional to fan period) is larger than the limit.
Local temp high limit:
Contains the local high-temperature interrupt limit.
Local temp low limit:
Contains the local low-temperature interrupt limit.
Local temp THERM limit:
Contains the local high-temperature limit for the THERM output. Default is +70°C for
the MAX6663/MAX6664; CRIT0 and CRIT1 determine the default value for the
MAX6653 (see Table 1).
Remote temp high limit:
Contains the remote high-temperature interrupt limit.
Remote temp low limit:
Contains the remote low-temperature interrupt limit.
Remote temp THERM limit:
Contains the remote high-temperature limit for the THERM output. Default is +100°C
for the MAX6663/MAX6664; CRIT0 and CRIT1 determine the default value for the
MAX6653 (see Table 1).
Local temp shutdown limit:
Contains the local high-temperature limit for the SDL output. CRIT0 and CRIT1
determine the default value for the MAX6653 (see Table 1).
Remote temp shutdown limit:
Contains the remote high-temperature limit for the SDR output. CRIT0 and CRIT1
determine the default value for the MAX6653 (see Table 1).
temperature reading. When this bit is 1, the offset value in bits [3:0] is subtracted
from the local temperature reading.
temperature reading. When this bit is 1, the offset value in bits [3:0] is subtracted
from the remote temperature reading.
temperature reading.
temperature reading.
Temperature Monitors and
PWM Fan Controllers
Register Summary (continued)
DESCRIPTION
17