Pin Function Grouping

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, VDD, gnd_1 gnd_2 etc
NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

Worked for 1 min 31 sec

flux

I grouped the ADXL345 pins into unique functional groups with no duplicated pins: Power, Ground, Communication/Serial Interface, Interrupt Outputs, Reserved, and No Connect. Full table is in the ADXL345BCCZ-RL Pin Function Groups project file.

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ADXL345BCCZ-RL Pin Function Groups

Source: Analog Devices ADXL345 datasheet, Pin Configuration and Function Descriptions / Table 5. The grouping below assigns each physical pin to exactly one functional group; duplicate/common functions are grouped once and no pin is repeated across groups.

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Table

Group	Pins	Why grouped here	Suggested Section	Suggested Pin Group	Suggested Flux Pin Type
Power	Pin 1 `VDD I/O`; Pin 6 `VS`	Supply rails: digital interface supply and main supply voltage	Power	Power	Power In
Ground	Pin 2 `GND`; Pin 4 `GND`; Pin 5 `GND`	All ground/return pins	Ground	Ground	Ground
Communication / Serial Interface	Pin 7 `CS`; Pin 12 `SDO / ALT ADDRESS`; Pin 13 `SDA / SDI / SDIO`; Pin 14 `SCL / SCLK`	SPI/I2C bus and address/control signals	Communication	Serial_Interface	Pin 7 Input; Pin 12 Output/Bi-Directional depending mode; Pin 13 Bi-Directional; Pin 14 Input
Interrupt Outputs	Pin 8 `INT1`; Pin 9 `INT2`	Dedicated interrupt output pins	Signal	Interrupt	Output
Reserved	Pin 3 `RESERVED`; Pin 11 `RESERVED`	Datasheet-reserved pins with required connection/open guidance	No Connect or Control*	Reserved	Unspecified*
No Connect	Pin 10 `NC`	Not internally connected	No Connect	NC	Not Connected

* For reserved pins, I would keep them in their own Reserved group rather than mixing them with Power/Ground, even though the datasheet gives connection guidance: Pin 3 must be connected to VS or left open, and Pin 11 must be connected to ground or left open. This prevents them from being duplicated in Power or Ground while still preserving their required handling in the pin description.

Full pin list, one group per pin

Table

Pin No.	Datasheet mnemonic	Datasheet function	Assigned group
1	`VDD I/O`	Digital interface supply voltage	Power
2	`GND`	Must be connected to ground	Ground
3	`RESERVED`	Must be connected to `VS` or left open	Reserved
4	`GND`	Must be connected to ground	Ground
5	`GND`	Must be connected to ground	Ground
6	`VS`	Supply voltage	Power
7	`CS`	Chip select	Communication / Serial Interface
8	`INT1`	Interrupt 1 output	Interrupt Outputs
9	`INT2`	Interrupt 2 output	Interrupt Outputs
10	`NC`	Not internally connected	No Connect
11	`RESERVED`	Must be connected to ground or left open	Reserved
12	`SDO / ALT ADDRESS`	Serial data output for SPI 4-wire / alternate I2C address select	Communication / Serial Interface
13	`SDA / SDI / SDIO`	I2C serial data / SPI serial data input / SPI 3-wire data I/O	Communication / Serial Interface
14	`SCL / SCLK`	Serial communication clock for I2C/SPI	Communication / Serial Interface

Notes

I did not place Pin 3 in the Power group or Pin 11 in the Ground group, even though their allowed connections reference VS and ground respectively, because their actual function is RESERVED.
SDO / ALT ADDRESS, SDA / SDI / SDIO, and SCL / SCLK are common serial-interface functions and belong together.
INT1 and INT2 are common interrupt output functions and belong together.
If you want this applied to the part terminals, the next step is to update each terminal’s Section, Pin Group, Pin Type, Pin Orientation, and short Pin Description properties from this mapping.

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Full pin list, one group per pin
Notes