參數(shù)資料
型號(hào): MAX1619
廠商: Maxim Integrated Products, Inc.
元件分類(lèi): 溫度/濕度傳感器
英文描述: Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface
中文描述: 遠(yuǎn)端/本地溫度傳感器,帶有雙路報(bào)警輸出及SMBus串行接口
文件頁(yè)數(shù): 13/20頁(yè)
文件大?。?/td> 304K
代理商: MAX1619
M
Remote/Loc al Temperature S ensor with Dual-
Alarm Outputs and S MBus S erial Interfac e
______________________________________________________________________________________
13
Table 4. Command-Byte Bit Assignments
*If the device is in hardware standby mode at POR, both temperature registers read 0°C.
Read remote temperature: returns latest temperature
RRTE
01h
00h
COMMAND
0000 0000*
0000 0000*
POR STATE
Read configuration byte
Read conversion rate byte
RCL
RCRA
03h
04h
02h
0000 1100
0000 0010
N/A
Read status byte (flags, busy signal)
RSL
Read remote T
MAX
limit
Read remote T
HYST
limit
RRTM
10h
Read local temperature: returns latest temperature
RLTS
01100100
Read remote T
HIGH
limit
Read remote T
LOW
limit
RRHI
07h
11h
0111 1111
01011111
RRTH
REGISTER
Write configuration byte
WCA
09h
08h
N/A
1100 1001
FUNCTION
Write remote T
MAX
limit
Write remote T
HYST
limit
WRTM
12h
0Ah
N/A
N/A
Write conversion rate byte
WCRW
Write remote T
HIGH
limit
Write remote T
LOW
limit
WRHA
0Dh
RRLS
13h
N/A
N/A
One-shot command
Write software POR
OSHT
SPOR
0Fh
FCh
0Eh
N/A
N/A
N/A
WRLN
WRTH
RUN/
STOP
6
0
0
POR STATE
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.
Masks all
ALERT
interrupts when high.
FUNCTION
POL
5
0
Determines the polarity of the
OVERT
output:
0 = active low (low when overtemp)
1 = active high
MASK
7 (MSB)
BIT
NAME
Table 5. Configuration-Byte Bit Assignments
Write address
Read manufacturer ID code
WADD
MFG ID
FDh
FEh
N/A
Read device ID code
DEV ID
FFh
0000 0100
0100 1101
PROT
4
0
When asserted high, locks out all subsequent writes to:
[] Configuration register bits 6, 5, 4, 3, 2 (RUN/STOP, POL, PROT, ID1, ID2)
[] T
MAX
register
[] T
HYST
register
[] Conversion rate register
[] Diode Current
ID1
ID2
RFU
3
2
1
1
0
Reduces the diode current by 5μA when set low.
Reduces the diode current by 2.5μA when set low.
Reserved for future use.
1–0
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