[FAQ] AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board hardware design – Collaterals to Get started

Hi Board designers, 

The below links are a quick reference to the collaterals that can be referred when starting a custom design.

Device Selection and features

Product Pages

https://www.ti.com/product/AM6442

https://www.ti.com/product/AM6441

https://www.ti.com/product/AM6422

https://www.ti.com/product/AM6421

https://www.ti.com/product/AM6412

https://www.ti.com/product/AM6411

 Datasheet

AM64x Sitara Processors datasheet

https://www.ti.com/lit/pdf/sprsp56

Silicon Errata

AM64x/AM243x Processor Silicon Revision 1.0, 2.0

https://www.ti.com/lit/pdf/sprz457

Technical Reference Manual

AM64x /AM243x Processors Technical Reference Manual

https://www.ti.com/lit/pdf/spruim2

Custom Board design:

Hardware Design Considerations

Hardware Design Considerations for Custom Board Using AM6442 , AM6422 , AM6412 and AM2434 Processors

https://www.ti.com/lit/pdf/sprad67

Schematic Design and Review Checklist

AM6442 , AM6422 , AM6412 and AM2434 Processor Schematic Design Guidelines and Schematic Review Checklist

https://www.ti.com/lit/pdf/spracu5

Power Consumption

AM64x Maximum Current Ratings

https://www.ti.com/tool/download/SPRR451

AM64x/AM243x Power Estimation Tool

https://www.ti.com/lit/pdf/spracw6

SoC power solutions Application notes:

Powering the AM64x with the TPS65220 or TPS65219 PMIC

https://www.ti.com/lit/pdf/slvafe9

Evaluation - EVM

https://www.ti.com/tool/SK-AM64B

SK-AM64B Design File Package

https://www.ti.com/lit/zip/sprr460

https://www.ti.com/tool/TMDS64EVM

TMDS64EVM Design File Package

https://www.ti.com/lit/zip/sprr462 

Add-on cards 

GPMC NAND Expansion Card 

HSE NAND EXP BOARD + BREAKOUT BOARD.zip

PinMux 

4442.am64x_sk.zip

am64x_evm.zip

CAD symbols

Cad symbol specific to the selected device can be chosen from the device product page. Refer below example:

https://www.ti.com/product/AM6442#cad-cae-symbols

Ordering & quality

https://www.ti.com/product/AM6442#order-quality

https://www.ti.com/product/AM6441#order-quality 

https://www.ti.com/product/AM6422#order-quality 

https://www.ti.com/product/AM6421#order-quality 

https://www.ti.com/product/AM6412#order-quality 

https://www.ti.com/product/AM6411#order-quality 

Package pad diameter and substrate pad dimension 

AM64x -> ALV pkg : ball diameter 0.5mm : substrate pad 0.45mm
The recommendation is 1:1 ratio between PCB pad and substrate pad.

Lead finish/Ball material

SnAgCu

DDR Board Design and Layout Guidelines

AM64x\AM243x DDR Board Design and Layout Guidelines

https://www.ti.com/lit/pdf/spracu1

Escape Routing for PCB Design

AM64x and AM243x BGA Escape Routing

https://www.ti.com/lit/pdf/spruiy5

Design Simulation files

https://www.ti.com/product/AM6442#design-tools-simulation

Simulation files provided includes IBIS, IBIS-AMI, BSDL, Thermal model, power-estimation tool (PET) and Maximum Current Ratings.

IBIS model

https://www.ti.com/lit/zip/sprm730

Thermal model attached in case the thread is not accessible.0268.sprm773a.zip

 (23) AM6442: Ansys Compatible Thermal Model - Processors forum - Processors - TI E2E support forums

0268.sprm773a.zip

AM64x PDN Target impedance values:

Impedance target values for VDD_CORE on AM64x

Low freq (< 1MHz): 15 mOhm

Mid freq (1 < 20MHz):  35 mOhm

High freq (20 < 50 MHz): 35 mOhm

This is valid for either of the core voltage voltages (0.75V, 0.85V). We do not provide target impedance values for other rails on AM64x.

Note: We do not include Buck output inductance in PDN simulations.

Power Distribution Networks: Implementation and Analysis

Sitara Processor Power Distribution Networks: Implementation and Analysis

https://www.ti.com/lit/pdf/sprac76

High Speed Board design and Signal integrity simulation 

https://www.ti.com/lit/pdf/spraar7

https://www.ti.com/lit/pdf/spracn9

https://www.ti.com/lit/pdf/sprabi1

Technical Documents

Collaterals and application notes

https://www.ti.com/product/AM6442#tech-docs

Technical Support

AM6442, AM6441, AM6422, AM6421, AM6412, AM6411 Custom board design - FAQs

Previous E2E threads - Keywords AM64x, AM644X, AM6442, AM6441, AM6422, AM6421, AM6412, AM6411

Starting a new thread

(2) TI E2E support forums

Useful links

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1347060/faq-am6442-am6441-am6422-am6421-am6412-am6411-custom-board-hardware-design---design-and-review-notes-for-reuse-of-sk-am64b-schematics

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1337853/faq-am6442-am6441-am6422-am6421-am6412-am6411-custom-board-hardware-design---design-and-review-notes-for-reuse-of-tmds64evm-schematics

Notes

1. Always ensure you are using the latest version of the documentation.
2. Check the product folder regularly for the latest version.
3. On Ti.com, device product folder page, there is a "Notifications" button. Registering here enables automatic notification of device document changes.
4. If you have any queries or clarification, use E2E to find similar queries or ask a new question

Regards,

Sreenivasa

Hi Board designers,

Inputs regarding board simulation

Refer below for the AC Impedance plot for VDD_CORE.

The board has undergone full split lot validation with this combination of filtering/decaps.

Regards,

Sreenivasa