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參數(shù)資料
| 型號： | G768D |
| 英文描述： | ± 3oC remote thermal sensor with one fan control and SMBus interface.|Thermal Sensor / Detector Series |
| 中文描述： | ± 3oC遠(yuǎn)程溫度傳感器一個(gè)風(fēng)扇控制和SMBus接口。|熱傳感器/探測器系列 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 323K |
| 代理商： | G768D |
Ver: 1.4
May 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
13
G768D
Global Mixed-mode Technology Inc.
Table 7. Status-Byte Bit Assignments
BIT
7(MSB)
6
5
4
3
2
1
0(LSB)
NAME
BUSY
RHIGH2*
RLOW2*
RHIGH1*
RLOW1*
OPEN*
RFU
FAN_FAIL*
FUNCTION
A high indicates that the ADC is busy converting.
A high indicates that the 2
nd
diode high-temperature alarm has activated.
A high indicates that the 2
nd
diode low-temperature alarm has activated.
A high indicates that the 1
st
diode high-temperature alarm has activated.
A high indicates that the 1
st
diode low-temperature alarm has activated.
A high indicates a remote-diode continuity (open-circuit) fault.
Reserved for future use (returns 0)
A high indicates that the fan failure alarm has activated.
*These flags stay high until cleared by POR, or until the status byte register is read.
Table 8. Conversion-Rate Control Byte
DATA
CONVERSION
RATE (Hz)
0.0625
0.125
0.25
0.5
1
2
4
8
RFU
Temperature Sensor Average
Supply Current (μA TYP, at V
CC
= 5V)
30
33
35
48
70
128
225
425
-
00h
01h
02h
03h
04h
05h
06h
07h
08h to FFh
Table 9. RRTE2 and RRTE1 Temp Register Update Timing Chart
OPERATING
MODE
Auto-Convert
CONVERSION
INITIATED BY:
Power-on reset
1-shot command, while idling
between automatic conversions
1-shot command that occurs
during a conversion
NEW CONVERSION RATE
(CHANGED VIA WRITE TO CRW)
N/A (0.25Hz)
TIME UNTIL RRTE2 AND
RRTE1 ARE UPDATED
156ms max
Auto-Convert
N/A
156ms max
Auto-Convert
N/A
When current conversion is
complete (1-shot is ignored)
Auto-Convert
Rate timer
0.0625Hz
20sec
Auto-Convert
Rate timer
0.125Hz
10sec
Auto-Convert
Rate timer
0.25Hz
5sec
Auto-Convert
Rate timer
0.5Hz
2.5sec
Auto-Convert
Rate timer
1Hz
1.25sec
Auto-Convert
Rate timer
2Hz
625ms
Auto-Convert
Auto-Convert
Rate timer
4Hz
312.5ms
Rate timer
8Hz
237.5ms
Software Standby RUN/STOP bit
N/A
156ms
Software Standby 1-shot command
N/A
156ms
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