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ADM1064 Datasheet(PDF) 15 Page - Analog Devices |
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ADM1064 Datasheet(HTML) 15 Page - Analog Devices |
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15 / 32 page  ADM1064 Rev. 0 | Page 15 of 32 VXn PINS AS DIGITAL INPUTS As mentioned previously, the VXn input pins on the ADM1064 have dual functionality. The second function is as a digital input to the device. Therefore, the ADM1064 can be configured for up to five digital inputs. These inputs are TTL/CMOS-compatible. Standard logic signals can be applied to the pins: RESET from reset generators, PWRGOOD signals, fault flags, manual resets, and so on. These signals are available as inputs to the SE, and can be used to control the status of the PDOs. The inputs can be configured to detect either a change in level or an edge. When configured for level detection, the output of the digital block is a buffered version of the input. When configured for edge detection, once the logic transition is detected, a pulse of programmable width is output from the digital block. The width is programmable from 0 µs to 100 µs. The digital blocks feature the same glitch filter function that is available on the SFDs. This enables the user to ignore spurious transitions on the inputs. For example, the filter can be used to debounce a manual reset switch. When configured as digital inputs, each of the VXn pins has a weak (10 µA) pull-down current source available for placing the input in a known condition, even if left floating. The current source, if selected, weakly pulls the input to GND. DETECTOR VXn (DIGITAL INPUT) GLITCH FILTER VREF = 1.4V TO SEQUENCING ENGINE + – Figure 21. VXn Digital Input Function |
Similar Part No. - ADM1064 |
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Similar Description - ADM1064 |
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