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參數(shù)資料
| 型號(hào)： | ASC7531BM10 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR |
| 中文描述： | 低電壓1 - Wire數(shù)字溫度傳感器和電壓監(jiān)測 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大小： | 196K |
| 代理商： | ASC7531BM10 |
- 6 -
Andigilog, Inc. 2006
www.andigilog.com
December
2006 - 70A05012
aSC7531A / aSC7531B
Voltage
5.0 V
4.992 V
1 V
0.0 V
-1 V
-4.992 V
-5.0 V
2’s complement representation
0001 0100 0000 0000
0001 0011 1111 1000
0000 0100 0000 0000
0000 0000 0000 0000
1111 1100 0000 0000
1110 1100 0000 1001
1110 1100 0000 0000
Table 3. Voltage Representation
Actual aSC7531 reports are only positive in sign and 13-bits
or 7.8mV in resolution. The sign bit will always be 0 since the
measured voltages are only positive values. Below the
integer bits, the fractional voltage reported by the aSC7531
are bits 9 through 3, with LSB = 7.8mV. Bits 2 through 0 are
always zero. The aSC7531 cannot measure voltages greater
than 16V.
Sign
15
Integer Voltage 0 to 31V
14
13
Fractional Voltage LSB = 1/128V
8
7
6
Always Zero
2
1
12
11
10
●
9
5
4
3
0
Figure 3. Voltage Reading
SST Interface
Multi Client Mode
Sensors operate in multi-client mode for read bit timing. Reference the SST Specification Version 1.0 for details.
SST Device Commands
GetDIB() Command (0xF7)
Read the Device Identifier Block (DIB). The read length of the command is either 8 or 16 bytes. 8 bytes is the minimum number of
bytes populated by a fixed address discoverable client.
Write Data Length:
0x01
Read Data Length:
0x08/0x10
Command Code:
0xF7
Note: Un-shaded table entries are created by the host. Shaded entries are the response bytes from the aSC7531 to the host.
# Bits
Host Sending
Hex Value
8
8
8
Target Address
Write Length
Read Length
0x48
0x01
0x10
8
8
8
DIB Byte 1
…
DIB Byte 15
(data)
(data)
(data)
# Bits
aSC7531 Sending
Hex Value
8
8
FCS
0xDC
GetDIB Cmd
0xF7
8
8
FCS
DIB Byte 16
(data)
(data dependent)
Figure 4. GetDIB() Command (16-byte read length)
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