MAX1619MEE Maxim Integrated Products, MAX1619MEE Datasheet - Page 13

• Manufacturer Part Number: MAX1619MEE
• Description: IC TEMP SENSOR W/ALARM 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1619MEE

• 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: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 4. Command-Byte Bit Assignments
* If the device is in hardware standby mode at POR, both temperature registers read 0°C.
Table 5. Configuration-Byte Bit Assignments
7 (MSB)
REGISTER
BIT
1–0
Remote/Local Temperature Sensor with Dual-
6
5
4
3
2
MFG ID
WCRW
DEV ID
WRTM
WRHA
WADD
WRTH
WRLN
RCRA
RRTM
RRTH
OSHT
SPOR
RRTE
RRLS
RLTS
RRHI
WCA
RCL
RSL
Alarm Outputs and SMBus Serial Interface
NAME
MASK
______________________________________________________________________________________
STOP
PROT
RUN/
POL
RFU
ID1
ID2
COMMAND
0Ah
0Dh
0Eh
FCh
FDh
FEh
00h
01h
02h
03h
04h
10h
11h
07h
08h
09h
12h
13h
0Fh
FFh
POR STATE
0
0
0
0
1
1
0
POR STATE
0000 0000*
0000 0000*
0000 1100
0000 0010
0111 1111
1100 1001
0100 1101
0000 0100
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 in either one-shot or timer
mode.
Determines the polarity of the OVERT output:
0 = active low (low when overtemp)
1 = active high
When asserted high, locks out all subsequent writes to:
[] Configuration register bits 6, 5, 4, 3, 2 (RUN/STOP, POL, PROT, ID1, ID2)
[] T
[] T
[] Conversion rate register
[] Diode Current
Reduces the diode current by 5µA when set low.
Reduces the diode current by 2.5µA when set low.
Reserved for future use.
01100100
01011111
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
MAX
HYST
register
register
Read local temperature: returns latest temperature
Read remote temperature: returns latest temperature
Read status byte (flags, busy signal)
Read configuration byte
Read conversion rate byte
Read remote T
Read remote T
Read remote T
Read remote T
Write configuration byte
Write conversion rate byte
Write remote T
Write remote T
Write remote T
Write remote T
One-shot command
Write software POR
Write address
Read manufacturer ID code
Read device ID code
FUNCTION
MAX
HYST
HIGH
LOW
MAX
HYST
HIGH
LOW
limit
limit
limit
limit
limit
limit
limit
limit
FUNCTION
13