ESP32#

NodeMCU-32s ESP32-S1-DevKitC-1#

Pin Layout#

ESP-pinout

CPU and Internal Memory#

  • The ESP32-S0WD contains one low-power Xtensa® 32-bit LX6 microprocessor. The internal memory includes:

    • 448 KB of ROM for booting and core functions.

    • 520 KB of on-chip SRAM for data and instructions.

    • 8 KB of SRAM in RTC, which is called RTC FAST Memory and can be used for data storage; it is accessed by the main CPU during RTC Boot from the deep-sleep mode.

    • 8 KB of SRAM in RTC, which is called RTC SLOW Memory and can be accessed by the co-processor during the Deep-sleep mode.

    • 1 Kib of eFuse, of which:

      • 256 bits are used for the system (MAC address and chip configuration)

      • 768 bits are reserved for customer applications, including flash-encryption and chip-ID.

Absolute Maximum Ratings#

Symbol

Parameter

Min

Max

Unit

VDD3

Power Supply Voltage

-0.3

3.6

V