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PC87366 数据表(PDF) 194 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 PC87366
功能描述  128-Pin LPC SuperI/O with System Hardware Monitoring, MIDI and Game Ports
PDF  240 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

PC87366 数据表(HTML) 194 Page - National Semiconductor (TI)

Back Button PC87366 Datasheet HTML 190Page - National Semiconductor (TI) PC87366 Datasheet HTML 191Page - National Semiconductor (TI) PC87366 Datasheet HTML 192Page - National Semiconductor (TI) PC87366 Datasheet HTML 193Page - National Semiconductor (TI) PC87366 Datasheet HTML 194Page - National Semiconductor (TI) PC87366 Datasheet HTML 195Page - National Semiconductor (TI) PC87366 Datasheet HTML 196Page - National Semiconductor (TI) PC87366 Datasheet HTML 197Page - National Semiconductor (TI) PC87366 Datasheet HTML 198Page - National Semiconductor (TI) Next Button
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11.0 Voltage Level Monitor (VLM) (Continued)
194
www.national.com
11.7.2
Measuring Out of Range Positive and Negative Voltages
Only voltages within the range of 0V to 2.45*VREF can be measured by the module. To measure voltages out of this range,
any of the external measurement pins can be used, with the addition of external resistors that should be used as voltage
dividers. (See Figure 40.)
Table 52. Delay Setting Example
External
Elements
Delay Time
(nS)
RSOURCE
[K
Ω]
CP
[pF]
5
0.1
15
1
110
10
900
30
3200
27.5
0.1
25
1
210
10
2220
30
7900
50
0.1
45
1
430
10
3350
30
11400
Figure 40. Measurement of Positive and Negative Voltages
R1
VIN (12V)
R2
AVI
R1
R2
AVI
VIN (-12V)
AVDD
AVSS
AVSS



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