Most PSoC applications use GPIO connections to drive resistive loads. Worst case logic level outputs at maximum rated current are clearly specified in the target device datasheet. This may be insufficient information when the absolute value of the output level is important to the performance of the user's circuit. Examples include using a PWM as a source to a BPF2 User Module, using a PWM to implement a DAC, or when the loading device has VIL or VIH thresholds that are more restrictive than the specified maximum values for PSoC outputs.
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Example Project |
Supported H/W and S/W | Supported PSoC1 Devices | |||||||||
| PSoC Designer Version | H/W Kit | CY8C20xxx | CY8C21xxx | CY8C22xxx | CY8C23xxx | CY8C24xxx | CY8C27xxx | CY8C28xxx | CY8C29xxx | ||
| No | N/A | N/A | x34 | x23, x34, x45 | x23A, x94 | x43 | x | x66 | |||