SPRSP74D october 2022 – july 2023 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
This section describes connectivity requirements for package balls that have specific connectivity requirements and package balls that may be unused.
All power balls must be supplied with the voltages specified in the Recommended Operating Conditions section, unless otherwise specified in Signal Descriptions.
For additional clarification, "leave unconnected" or "no connect" (NC) mean no signal traces should be connected to these device ball numbers.
BALL NUMBER | BALL NAME | PIN CONNECTIVITY REQUIREMENTS |
---|---|---|
D4 | SAFETY_ERRORn | Each of these balls must be connected to ground (VSS) through separate external pull resistors to ensure they are held to a valid logic low level if a PCB signal trace is connected and not actively driven by an attached device. The internal pull-down may be used to hold a valid logic low level if no PCB signal trace is connected to the ball. |
B3 C5 D5 |
TCK TDI TMS |
Each of these balls must be connected to the corresponding power supply(1) through separate external pull resistors to ensure these balls are held to a valid logic high level if a PCB signal trace is connected and not actively driven by an attached device. The internal pull-up may be used to hold a valid logic high level if no PCB signal trace is connected to the ball. |
A13 B13 |
I2C0_SCL I2C0_SDA |
Each of these balls must be connected to the corresponding power supply(1) through separate external pull resistors to ensure these balls are held to a valid logic high level. |
N1 N4 A11 C10 |
QSPI0_D0 (SOP0) QSPI0_D1 SPI0_CLK (SOP2) SPI0_D0 (SOP3) |
Each of these balls must be connected to the corresponding power supply(1) or ground (VSS) through separate external pull resistors to ensure these balls are held to a valid logic high or low level as appropriate to select the desired device boot mode. |
ADC ZCZ PIN | ADC[0:4]_AIN[0:5] | Any unused ADCx_AINy input ball for any ADC instance (ADC[0:4]_AIN[0:5]) must be connected (shorted) directly to ground (VSS). |
U16 T15 |
ADC_CAL0 ADC_CAL1 |
If all ADCx_AINy inputs for all ADC instances (ADC[0:4]_AIN[0:5]) are not used, the ADC_CAL[0:1] analog ball must be connected (shorted) directly to ground (VSS). |
U2 | VSYS_MON | If VSYS_MON is not used, this ball may be connected (shorted) directly to ground (VSS). |
LVCMOS ZCZ PIN | Any LVCMOS Voltage Buffer Pin | If a pin has an associated IOMUX Pad Configuration Registration then the ball may remain unconnected. After PORz, the LVCMOS voltage buffer is configured to a default state compatible with an unconnected ball. |
If balls are allowed to float between valid logic levels, the input buffer may enter a high-current state which could damage the IO cell.