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wiki:pinouts [2022/02/16 10:40] vizycam [Notes] |
wiki:pinouts [2022/02/17 09:27] vizycam [Notes] |
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==== Notes ==== | ==== Notes ==== | ||
- | * All logic level outputs of B0 through B3 are 0V (low) to 3.3V (high). | + | * As inputs B0 through B3 can each accept up to 12V input voltages (not to exceed input power voltage, which is typically 12V.) |
- | * B0 through B3 can accept up to 12V input voltages (not to exceed input power voltage, which is typically 12V.) | + | * As inputs B0 through B3 can each accept 5V TTL voltages. |
- | * B0 through B3 can accept 5V TTL inputs. | + | * As inputs B0 through B3 each have 1.3V of hysteresis: the low-to-high threshold is 2.3V, the high-to-low threshold is 1.0V. |
- | * B0 through B3 in "high power" mode can sink up to 1000mA per channel, which applies when the channels are logic low (0V). It can source up to 5mA per channel, which applies when the channels are logic high (3.3V). | + | * As inputs B0 through B3 each have a 22K pull-up resistor to 3.3V. |
- | * B0 through B3 have a 22K pull-up resistor to 3.3V. | + | * As outputs B0 through B3 each vary between 0V (low) to 3.3V (high). |
- | * The 12V signal can source up to 4A if the power supply can supply this much current plus enough to power Vizy. | + | * As "high power" outputs B0 through B3 can each sink up to 1000mA, which applies during logic low (0V). Each channel can source up to 5mA, which applies during logic high (3.3V). |
+ | * The maximum carrying current of the 12V signal is 4.0A. | ||
* The 5V signal can source up to 2A. | * The 5V signal can source up to 2A. | ||
- | * All I/O pins are protected from static discharge. | + | * All I/O pins are protected from electrostatic discharge. |