Espressif ESP

Übersicht

	ESP32-S3	ESP32-S2	ESP32-C3	ESP32	ESP8266
Processor	Xtebnsa LX7 32-bit	Xtebnsa LX7 32-bit	RISC-V 32-bit	Xtebnsa LX6 32-bit	Tensilica L106 RISC 32-bit
Core	2	1	1	1 - 2
Clock	240 MHz	240 MHz	160 MHz	80 - 240 MHz
SRAM	512 KB	320 KB	400 KB	520 KB	160 KB RAM
ROM	384 KB	128 KB	384 KB	448 KB
PSRAM	2/8 MB	up to 2 MB	-	up to 2 MB
FLASH	4 -16 MB	2-4 MB	2-4 MB	4/8/16 MB	1/2 MB
Sleep Mode	7 - 240 uA	20 - 450 uA	5 - 130 uA	< 5 uA	< 20 uA
WiFi	2.4 GHz 150 Mbps b/g/n	2.4 GHz 150 Mbps b/g/n	2.4 GHz 150 Mbps b/g/n	2.4 GHz 150 Mbps b/g/n	2.4 GHz 72 Mbps b/g/n
Bluetooth	5 LE	-	5 LE	4.2 LE	-
GPIO	45	43	22 or 16	34	17
SPI	4	4	3	4	2
LCD interface	8/18-bit parallel	8/16/24-bit parallel, 8-bit serial	-	-	-
Camera	DVP 8/16 bit	DVP 8/16 bit	-	-	-
UART	3	2	2	3	2
I2C	2	2	1	2	1
I2S	2	1	1	2	1
RMT (IR)	1	1	1	1	-
PWM	8	8	6	16	4
RTC	1	1	1	1	1
USB	1x OTG, 1x Serial/JTAG	1x OTG	1x Serial/JTAG	-
DMA	5 Tx/Rx channels		3 Tx/Rx channels	2
ADC	2x SAR 12-bit (20 chanels)	2x SAR 12 Bit (20 Channel)	2x SAR 12-bit (6 chanels)	1x 12 Bit (18 Channel)	10-bit SAR
DAC	?	2x 8 Bit		2x 8 Bit	-
Timer	4x 54-bit GPIO, 1x 52-bit system, 3x watchdog	4x 64-bit GPIO, 3x watchdog	2x 54-bit GPIO, 1x 52-bit system, 3x watchdog	2x 64-bit GPIO, 1x watchdog	-
Temp-Sensor	1	1	1	-	-
Secure	secure boot, flash encryption, 4-Kbit OTP, AES-128/256, RSA, RNG, HMAC	secure boot, flash encryption, 4-Kbit OTP, AES-128/256, RSA, RNG, HMAC	secure boot, flash encryption, 4-Kbit OTP, AES-128/256, RSA, RNG, HMAC	secure boot, flash encryption, 4-Kbit OTP, AES-128/256, RSA, RNG	secure boot, flash encryption, 1-Kbit OTP, AES, RSA, RNG