2.3.1.1 Supply Pins
The following table lists the supply pins.
| Name | Type | Description |
|---|---|---|
| GND | Ground | Low supply voltage |
| VCCA | Supply voltage | Supply voltage for array (1.5V). See Operating Conditions for more information. |
| VCCIBx | Supply voltage | Supply voltage for I/Os. Bx is the I/O Bank ID—0 to 7. See Operating Conditions for more information. |
| VCCDA | Supply voltage | Supply voltage for the I/O differential amplifier and JTAG and probe interfaces. See Operating Conditions for more information. VCCDA should be tied to 3.3V. |
| VCCPLA/B/C/D/E/F/G/H | Supply voltage | PLL analog power supply (1.5V) for internal PLL. There are eight in each device. VCCPLA supports the PLL associated with global resource HCLKA, VCCPLB supports the PLL associated with global resource HCLKB, and so on. The PLL analog power supply pins should be connected to 1.5V whether PLL is used or not. |
| VCOMPLA/B/C/D/E/F/G/H | Supply voltage | Compensation reference signals for internal PLL. There are eight in each device. VCOMPLA supports the PLL associated with global resource HCLKA, VCOMPLE supports the PLL associated with global resource CLKE, and so on. (see the following figure for correct external connection to the supply). The VCOMPLX pins should be left floating if PLL is not used. |
| VPUMP | Supply voltage (external pump) | In the low power mode, VPUMP will be used to access an external charge pump (if the user desires
to bypass the internal charge pump to further reduce power). The
device starts using the external charge pump when the voltage level
on VPUMP reaches VIH1. In normal device operation, when using the internal charge
pump, VPUMP should be tied to GND. |
When VPUMP = VIH, it shuts off the internal charge pump. See Low Power Mode