Espressif ESP32­-S3 Series - Page 4

CONFIDENTIAL
List of Illustrations
List of Tables
1 Description of ESP32-S3 Power-up and Reset Timing Parameters 9
2 Pin-to-Pin Mapping Between Chip and SiP Flash/PSRAM 10
3 JTAG Signal Source Selection 14
4 Strapping Pins 14
5 Parameter Descriptions of Setup and Hold Times for the Strapping Pin 15
List of Figures
1 ESP32-S3 Schematic 6
2 Schematic for the Digital Power Supply Pins 7
3 Schematic for the Analog Power Supply Pins 8
4 ESP32-S3 Power-up and Reset Timing 9
5 Schematic for the External Flash and RAM (PSRAM) 11
6 Schematic for the Crystal 11
7 Schematic for the Oscillator 12
8 Schematic for the External Crystal (RTC) 12
9 Schematic for RF Matching 13
10 Setup and Hold Times for the Strapping Pin 15
11 ESP32-S3 PCB Layout 17
12 Placement of ESP32-S3 Modules on Base Board (antenna feed point on the right) 18
13 Placement of ESP32-S3 Modules on Base Board (antenna feed point on the left) 18
14 Keepout Zone for ESP32-S3 Module’s Antenna on the Base Board 19
15 ESP32-S3 Power Traces in a Four-layer PCB Design 20
16 ESP32-S3 Analog Power Traces in a Four-layer PCB Design 21
17 ESP32-S3 Crystal Oscillator Layout 22
18 ESP32-S3 RF Layout in a Four-layer PCB Design 22
19 ESP32-S3 PCB Stack up Design 23
20 ESP32-S3 Stub in a Four-layer PCB Design 23
21 ESP32-S3 Flash Layout 24
22 A Typical Touch Sensor Application 25
23 Electrode Pattern Requirements 25
24 Sensor Track Routing Requirements 26
25 Shield Electrode and Protective Sensor 26
Espressif Systems 4
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ESP32-S3 Series Hardware Design Guidelines v1.0