参数资料
| 型号： | ADT7468ZEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 79/81页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADT7468 |
| 标准包装： | 1 |
| 其它名称： | EVAL-ADT7468EB EVAL-ADT7468EB-ND |
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ADT7468
Table 56. Register 0x7D—Configuration Register 4 (Power-On Default = 0x00)
Bit
<1:0>
Name
PIN14FUNC
R/W 1
Read/write
Description
These bits set the functionality of Pin 14:
00 = TACH4 (default)
01 = Bidirectional THERM
10 = SMBALERT
11 = GPIO
<3:2>
AINL
Read/write
These two bits define the input threshold for 2-wire fan speed measurements (low frequency mode
only):
00 = ±20 mV
01 = ±40 mV
10 = ±80 mV
11 = ±130 mV
<4>
<5>
<6>
<7>
BpAtt2.5V
BpAttV CCP
BpAtt5V
BpAtt12V
Bypass 2.5 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.2965 V (0xFF).
Bypass V CCP attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.2965 V (0xFF).
Bypass 5 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.2965 V (0xFF).
Bypass 12 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.2965 V (0xFF).
1
This register becomes read-only when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to this register have no effect.
Table 57. Register 0x7E—Manufacturer’s Test Register 1 (Power-On Default = 0x00)
Bit
<7:0>
Name
Reserved
R/W
Read only
Description
Manufacturer’s test register. These bits are reserved for manufacturer’s test purposes and should not
be written to under normal operation.
Table 58. Register 0x7F—Manufacturer’s Test Register 2 (Power-On Default = 0x00)
Bit
<7:0>
Name
Reserved
R/W
Read only
Description
Manufacturer’s test register. These bits are reserved for manufacturer’s test purposes and should not
be written to under normal operation.
Rev. 3 | Page 79 of 81 | www.onsemi.com
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