參數(shù)資料
型號(hào)： DS9093F
英文描述： Temperature iButton
中文描述： iButton鑰匙鏈配件
文件頁(yè)數(shù)： 5/22頁(yè)
文件大小： 729K
代理商： DS9093F
DS1920
5 of 22
The most significant (sign) bit is duplicated into all of the bits in the upper MSB of the 2-byte
temperature register in memory. This “sign-extension” yields the 16-bit temperature readings as shown in
Table 1.
Higher resolutions may be obtained by the following procedure. First, read the temperature, and truncate
the 0.5°C bit (the LSB) from the read value. This value is TEMP_READ. The value left in the counter
may then be read. This value is the count remaining (COUNT_REMAIN) after the gate period has
ceased. The last value needed is the number of counts per degree C (COUNT_PER_C) at that
temperature. The actual temperature may be then be calculated by the user using the following formula:
TEMPERATURE = TEMP_READ - 0.25 +
C
COUNT_PER_
IN)
COUNT_REMA
-
_C
(COUNT_PER
TEMPERATURE MEASURING CIRCUITRY
Figure 3
TEMPERATURE/DATA RELATIONSHIPS
Table 1
TEMPERATURE
DIGITAL OUTPUT
(BINARY)
00000000 11001000
00000000 00110010
00000000 00000001
00000000 00000000
11111111 11111111
11111111 11001110
11111111 10010010
DIGITAL OUTPUT
(HEX)
00C8H
0032H
0001H
0000H
FFFFH
FFCEH
FF92H
+100
°
C
+25
°
C
+
°
C
+0
°
C
-
°
C
-25
°
C
-55
°
C
SET/CLEAR
LSB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS9093F/NO-BRAND 功能描述:iButton配件 RoHS:否 產(chǎn)品:iButton Probes 用于:DS19xx Series 制造商:Maxim Integrated
DS9093F+ 功能描述:iButton配件 iButton Key Ring Mount Black RoHS:否 產(chǎn)品:iButton Probes 用于:DS19xx Series 制造商:Maxim Integrated
DS9093F-B 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:iButton Key Ring Mounts
DS9093F-G 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:iButton Key Ring Mounts
DS9093F-R 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:iButton Key Ring Mounts
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