ESP32 C3 WROOM 02 ESP32 C3 WROOM 02U - Espressif

3 Pin Definitions To change the strapping bit values, you can apply the external pull-down/pull-up resistances, or use the host MCU’s GPIOs to control the voltage level of these pins when powering on ESP32-C3. After reset, the strapping pins work as normal-function pins. Table 4 lists detailed booting configurations of the strapping pins. Table 4: Strapping Pins Booting Mode 1 Pin Default SPI Boot Download Boot GPIO2 N/A 1 1 GPIO8 N/A Don’t care 1 1 0 GPIO9 Internal weak pull-up Enabling/Disabling ROM Messages Print in SPI Boot Mode Pin Default Functionality When the value of eFuse field EFUSE UART PRINT CONTROL is 0 (default), print is enabled and not controlled by GPIO8. GPIO8 N/A 1, if GPIO8 is 0, print is enabled; if GPIO8 is 1, it is disabled. 2, if GPIO8 is 0, print is disabled; if GPIO8 is 1, it is enabled. 3, print is disabled and not controlled by GPIO8. 1 The strapping combination of GPIO8 0 and GPIO9 0 is invalid and will trigger unexpected behavior. Figure 4 shows the setup and hold times for the strapping pins before and after the CHIP EN signal goes high. Details about the parameters are listed in Table 5. t0 CHIP EN t1 VIL nRST VIH Strapping pin Figure 4: Setup and Hold Times for the Strapping Pins Espressif Systems 12 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

3 Pin Definitions Table 5: Parameter Descriptions of Setup and Hold Times for the Strapping Pins Min Parameter Description t0 Setup time before CHIP EN goes from low to high 0 t1 Hold time after CHIP EN goes high 3 Espressif Systems (ms) 13 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics 4 Electrical Characteristics 4.1 Absolute Maximum Ratings Stresses above those listed in Table 6 Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Table 6: Absolute Maximum Ratings Symbol Parameter Min Max Unit VDD33 Power supply voltage –0.3 3.6 V TST ORE Storage temperature –40 105 C 4.2 Recommended Operating Conditions Table 7: Recommended Operating Conditions Symbol Parameter Min Typ Max Unit VDD33 Power supply voltage 3.0 3.3 3.6 V IV DD Current delivered by external power supply 0.5 — — A TA Operating ambient temperature –40 — 85 C version 105 C version 85 C 105 4.3 DC Characteristics (3.3 V, 25 C) Table 8: DC Characteristics (3.3 V, 25 C) Symbol Parameter CIN Pin capacitance VIH Min — High-level input voltage 0.75 VDD 1 Typ Max Unit 2 — pF — 1 VDD 0.3 V 1 VIL Low-level input voltage –0.3 — 0.25 VDD IIH High-level input current — — 50 nA Low-level input current — — 50 nA — — IIL VOH VOL 2 2 High-level output voltage 0.8 VDD Low-level output voltage 1 V V 1 — — 0.1 VDD V — 40 — mA — 28 — mA 45 — kΩ 45 — kΩ — 1 1 IOH IOL High-level source current (VDD 3.3 V, VOH 2.64 V, PAD DRIVER 3) Low-level sink current (VDD1 3.3 V, VOL 0.495 V, PAD DRIVER 3) RP U Pull-up resistor — RP D Pull-down resistor — VIH nRST VIL nRST Chip reset release voltage 0.75 VDD Chip reset voltage Espressif Systems –0.3 14 1 — VDD 0.3 0.25 VDD V 1 V ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics 1 VDD is the I/O voltage for pins of a particular power domain. 2 VOH and VOL are measured using high-impedance load. 4.4 Current Consumption Characteristics Owing to the use of advanced power-management technologies, the module can switch between different power modes. For details on different power modes, please refer to Section Low Power Management in ESP32-C3 Series Datasheet. Table 9: Current Consumption Depending on RF Modes Work mode Description TX Active (RF working) RX 1 Peak (mA) 802.11b, 1 Mbps, @20.5 dBm 345 802.11g, 54 Mbps, @18 dBm 285 802.11n, HT20, MCS7, @17.5 dBm 280 802.11n, HT40, MCS7, @17 dBm 280 802.11b/g/n, HT20 82 802.11n, HT40 84 The current consumption measurements are taken with a 3.3 V supply at 25 C of ambient temperature at the RF port. All transmitters’ measurements are based on a 100% duty cycle. 2 The current consumption figures for in RX mode are for cases when the peripherals are disabled and the CPU idle. Note: The content below is excerpted from Section Power Consumption in Other Modes in ESP32-C3 Series Datasheet. 4.4.1 Current Consumption in Other Modes Table 10: Current Consumption in Modem sleep Mode Mode CPU Frequency (MHz) 160 Modem-sleep2,3 80 Typ Description All Peripherals Clocks All Peripherals Clocks Disabled (mA) Enabled (mA)1 CPU is idle 16 21 CPU is running 23 28 CPU is idle 13 18 CPU is running 17 22 1 In practice, the current consumption might be different depending on which peripherals are enabled. 2 In Modem-sleep mode, Wi-Fi is clock gated. 3 In Modem-sleep mode, the consumption might be higher when accessing flash. For a flash rated at 80 Mbit/s, in SPI 2-line mode the consumption is 10 mA. Espressif Systems 15 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 11: Current Consumption in Low Power Modes Mode Description Typ (µA) Light-sleep VDD SPI and Wi-Fi are powered down, and all GPIOs are high-impedance Deep-sleep RTC timer RTC memory 5 Power off CHIP EN is set to low level, the chip is powered off 1 130 4.5 Wi Fi Radio 4.5.1 Wi Fi RF Standards Table 12: Wi Fi RF Standards Name Description Center frequency range of operating channel 1 2412 2484 MHz Wi-Fi wireless standard IEEE 802.11b/g/n 11b: 1, 2, 5.5 and 11 Mbps 20 MHz Data rate 11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 11n: MCS0-7, 72.2 Mbps (Max) 40 MHz 11n: MCS0-7, 150 Mbps (Max) Antenna type 1 PCB antenna, external antenna connector Device should operate in the center frequency range allocated by regional regulatory authorities. Target center frequency range is configurable by software. 2 For the modules that use external antenna connectors, the output impedance is 50 Ω. For other modules without external antenna connectors, the output impedance is irrelevant. 4.5.2 Wi Fi RF Transmitter (TX) Specifications Target TX power is configurable based on device or certification requirements. The default characteristics are provided in Table 13. Table 13: TX Power with Spectral Mask and EVM Meeting 802.11 Standards Min Typ Max (dBm) (dBm) (dBm) 802.11b, 1 Mbps — 20.5 — 802.11b, 11 Mbps — 20.5 — 802.11g, 6 Mbps — 20.0 — 802.11g, 54 Mbps — 18.0 — 802.11n, HT20, MCS0 — 19.0 — 802.11n, HT20, MCS7 — 17.5 — 802.11n, HT40, MCS0 — 18.5 — 802.11n, HT40, MCS7 — 17.0 — Rate Espressif Systems 16 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 14: TX EVM Test Rate Min Typ SL1 (dB) (dB) (dB) 802.11b, 1 Mbps, @20.5 dBm — –24.5 –10 802.11b, 11 Mbps, @20.5 dBm — –25.0 –10 802.11g, 6 Mbps, @20 dBm — –23.0 –5 802.11g, 54 Mbps, @18 dBm — –28.0 –25 802.11n, HT20, MCS0, @19 dBm — –23.5 –5 802.11n, HT20, MCS7, @17.5 dBm — –29.5 –27 802.11n, HT40, MCS0, @18.5 dBm — –26.5 –5 802.11n, HT40, MCS7, @17 dBm — –29.5 –27 1 SL stands for standard limit value. 4.5.3 Wi Fi RF Receiver (RX) Specifications Table 15: RX Sensitivity Min Typ Max (dBm) (dBm) (dBm) 802.11b, 1 Mbps — –98.0 — 802.11b, 2 Mbps — –96.0 — 802.11b, 5.5 Mbps — –93.0 — 802.11b, 11 Mbps — –88.6 — 802.11g, 6 Mbps — –93.0 — 802.11g, 9 Mbps — –92.0 — 802.11g, 12 Mbps — –90.8 — 802.11g, 18 Mbps — –88.4 — 802.11g, 24 Mbps — –85.4 — 802.11g, 36 Mbps — –82.0 — 802.11g, 48 Mbps — –78.0 — 802.11g, 54 Mbps — –76.4 — 802.11n, HT20, MCS0 — –93.0 — 802.11n, HT20, MCS1 — –90.8 — 802.11n, HT20, MCS2 — –88.2 — 802.11n, HT20, MCS3 — –84.6 — 802.11n, HT20, MCS4 — –81.4 — 802.11n, HT20, MCS5 — –77.4 — 802.11n, HT20, MCS6 — –75.4 — 802.11n, HT20, MCS7 — –74.4 — 802.11n, HT40, MCS0 — –90.0 — 802.11n, HT40, MCS1 — –87.6 — 802.11n, HT40, MCS2 — –84.8 — 802.11n, HT40, MCS3 — –81.8 — 802.11n, HT40, MCS4 — –78.4 — Rate Cont’d on next page Espressif Systems 17 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 15 – cont’d from previous page Min Typ Max (dBm) (dBm) (dBm) 802.11n, HT40, MCS5 — –74.4 — 802.11n, HT40, MCS6 — –72.6 — 802.11n, HT40, MCS7 — –71.2 — Rate Table 16: Maximum RX Level Min Typ Max (dBm) (dBm) (dBm) 802.11b, 1 Mbps — 5 — 802.11b, 11 Mbps — 5 — 802.11g, 6 Mbps — 5 — 802.11g, 54 Mbps — 0 — 802.11n, HT20, MCS0 — 5 — 802.11n, HT20, MCS7 — 0 — 802.11n, HT40, MCS0 — 5 — 802.11n, HT40, MCS7 — 0 — Rate Table 17: RX Adjacent Channel Rejection Rate Min Typ Max (dB) (dB) (dB) 802.11b, 1 Mbps — 35 — 802.11b, 11 Mbps — 35 — 802.11g, 6 Mbps — 31 — 802.11g, 54 Mbps — 20 — 802.11n, HT20, MCS0 — 31 — 802.11n, HT20, MCS7 — 16 — 802.11n, HT40, MCS0 — 25 — 802.11n, HT40, MCS7 — 11 — 4.6 Bluetooth LE Radio 4.6.1 Bluetooth LE RF Transmitter (TX) Specifications Table 18: Transmitter General Characteristics Parameter Min Max Unit RF transmit power — 0 — dBm Gain control step — 3 — dB –24 — 20 dBm RF power control range Espressif Systems Typ 18 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 19: Transmitter Characteristics Bluetooth LE 1 Mbps Parameter Description In-band emissions Modulation characteristics Carrier frequency offset Carrier frequency drift Min Typ Max Unit F F0 2 MHz — –37.62 — dBm F F0 3 MHz — –41.95 — dBm F F0 3 MHz — –44.48 — dBm f 1avg — 245.00 — kHz f 2max — 208.00 — kHz f 2avg / f 1avg — 0.93 — — — — –9.00 — kHz f0 fn n 2, 3, 4, .k — 1.17 — kHz f1 f0 — 0.30 — kHz fn fn 5 n 6, 7, 8, .k — 4.90 — kHz Table 20: Transmitter Characteristics Bluetooth LE 2 Mbps Parameter Description In-band emissions Modulation characteristics Carrier frequency offset Carrier frequency drift Min Typ Max Unit F F0 4 MHz — –43.55 — dBm F F0 5 MHz — –45.26 — dBm F F0 5 MHz — –47.00 — dBm f 1avg — 497.00 — kHz f 2max — 398.00 — kHz f 2avg / f 1avg — 0.95 — — — — –9.00 — kHz f0 fn n 2, 3, 4, .k — 0.46 — kHz f1 f0 — 0.70 — kHz fn fn 5 n 6, 7, 8, .k — 6.80 — kHz Table 21: Transmitter Characteristics Bluetooth LE 125 Kbps Parameter In-band emissions Modulation characteristics Carrier frequency offset Carrier frequency drift Espressif Systems Description Min Typ Max Unit F F0 2 MHz — –37.90 — dBm F F0 3 MHz — –41.00 — dBm F F0 3 MHz — –42.50 — dBm f 1avg — 252.00 — kHz f 1max — 200.00 — kHz — — –13.70 — kHz f0 fn n 1, 2, 3, .k — 1.52 — kHz f0 f3 — 0.65 — kHz fn fn 3 n 7, 8, 9, .k — 0.70 — kHz 19 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 22: Transmitter Characteristics Bluetooth LE 500 Kbps Parameter Description In-band emissions Modulation characteristics Carrier frequency offset Carrier frequency drift Min Typ Max Unit F F0 2 MHz — –37.90 — dBm F F0 3 MHz — –41.30 — dBm F F0 3 MHz — –42.80 — dBm f 2avg — 220.00 — kHz f 2max — 205.00 — kHz — — –11.90 — kHz f0 fn n 1, 2, 3, .k — 1.37 — kHz f0 f3 — 1.09 — kHz fn fn 3 n 7, 8, 9, .k — 0.51 — kHz 4.6.2 Bluetooth LE RF Receiver (RX) Specifications Table 23: Receiver Characteristics Bluetooth LE 1 Mbps Parameter Description Sensitivity @30.8% PER — — –97 — dBm Maximum received signal @30.8% PER — — 10 — dBm Co-channel C/I — — 7 — dB F F0 1 MHz — –4 — dB F F0 – 1 MHz — –4 — dB F F0 2 MHz — –29 — dB F F0 – 2 MHz — –31 — dB F F0 3 MHz — –33 — dB F F0 – 3 MHz — –35 — dB F F0 4 MHz — –35 — dB F F0 – 4 MHz — –37 — dB — — –35 — dB F Fimage 1 MHz — –40 — dB F Fimage – 1 MHz — –33 — dB 30 MHz 2000 MHz — –6 — dBm 2003 MHz 2399 MHz — –26 — dBm 2484 MHz 2997 MHz — –25 — dBm 3000 MHz 12.75 GHz — –5 — dBm — — –30 — dBm Adjacent channel selectivity C/I Image frequency Adjacent channel to image frequency Out-of-band blocking performance Intermodulation Espressif Systems 20 Min Typ Max Unit ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 24: Receiver Characteristics Bluetooth LE 2 Mbps Parameter Description Sensitivity @30.8% PER — — –93 — dBm Maximum received signal @30.8% PER — — 5 — dBm Co-channel C/I — — 10 — dB F F0 2 MHz — –8 — dB F F0 – 2 MHz — –7 — dB F F0 4 MHz — –32 — dB F F0 – 4 MHz — –34 — dB F F0 6 MHz — –39 — dB F F0 – 6 MHz — –39 — dB — — –32 — dB Adjacent channel selectivity C/I Image frequency Min F Fimage 2 MHz Adjacent channel to image frequency Intermodulation Max Unit — –39 — dB (2) — –8 — dB 30 MHz 2000 MHz — –12 — dBm 2003 MHz 2399 MHz — –30 — dBm 2484 MHz 2997 MHz — –28 — dBm 3000 MHz 12.75 GHz — –6 — dBm — — –29 — dBm F Fimage – 2 MHz Out-of-band blocking performance Typ Table 25: Receiver Characteristics Bluetooth LE 125 Kbps Parameter Description Sensitivity @30.8% PER — — –105 — dBm Maximum received signal @30.8% PER — — 10 — dBm Co-channel C/I — — 2 — dB F F0 1 MHz — –6 — dB F F0 – 1 MHz — –4 — dB F F0 2 MHz — –33 — dB F F0 – 2 MHz — –41 — dB F F0 3 MHz — –37 — dB F F0 – 3 MHz — –46 — dB F F0 4 MHz — –40 — dB F F0 – 4 MHz — –49 — dB — — –40 — dB F Fimage 1 MHz — –46 — dB F Fimage – 1 MHz — –37 — dB Adjacent channel selectivity C/I Image frequency Adjacent channel to image frequency Min Typ Max Unit Table 26: Receiver Characteristics Bluetooth LE 500 Kbps Parameter Description Min Typ Max Unit Sensitivity @30.8% PER — — –101 — dBm Maximum received signal @30.8% PER — — 10 — dBm Co-channel C/I — — 3 — dB Cont’d on next page Espressif Systems 21 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 Electrical Characteristics Table 26 – cont’d from previous page Parameter Adjacent channel selectivity C/I Image frequency Adjacent channel to image frequency Espressif Systems Description Min Typ Max Unit F F0 1 MHz — –6 — dB F F0 – 1 MHz — –7 — dB F F0 2 MHz — –34 — dB F F0 – 2 MHz — –37 — dB F F0 3 MHz — –38 — dB F F0 – 3 MHz — –40 — dB F F0 4 MHz — –40 — dB F F0 – 4 MHz — –42 — dB — — –40 — dB F Fimage 1 MHz — –45 — dB F Fimage – 1 MHz — –38 — dB 22 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 Submit Documentation Feedback

4 3 2 1 5 Module Schematics 5 Module Schematics This is the reference design of the module. D D GND XOUT C2 TBD 2 1 The value of R1 varies with the actual PCB board. GND 40MHz( 10ppm) 0 VDD33 GND 3 U1 GND C1 TBD The values of C1 and C2 vary with the selection of the crystal. 4 GND GND XIN Espressif Systems 5 33 0 C7 10uF 0.1uF NC RF ANT L2 PCB ANT C8 TBD GND GND VDD SPI GND TBD C9 TBD GND LNA IN GPIO0 GPIO1 GPIO2 CHIP EN GPIO3 1 2 3 4 5 6 7 8 LNA IN VDD3P3 VDD3P3 XTAL 32K P XTAL 32K N GPIO2 CHIP EN GPIO3 The values of C8, L2 and C9 vary with the actual PCB board. NC: No component. ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 U2 GPIO4 GPIO5 GPIO6 GPIO7 GPIO8 GPIO9 GPIO10 SPIQ SPID SPICLK SPICS0 SPIWP SPIHD VDD SPI VDD3P3 CPU 24 23 22 21 20 19 18 17 R3 R4 R5 100 100 100 R6 R7 100 100 SPIQ SPID SPICLK SPICS0 SPIWP SPIHD VDD SPI C10 C11 0.1uF 1uF D1 ESD R8 10K(NC) SPICS0 1 SPICLK 6 SPIHD 7 VDD33 /CS CLK /HOLD U3 GND ESP32-C3 GND VDD33 GND C12 0.1uF GND 8 1 2 VDD33 MTMS MTDI VDD3P3 RTC MTCK MTDO GPIO8 GPIO9 GPIO10 GND 9 10 11 12 13 14 15 16 GND ANT1 PCB ANTENNA VCC C6 U0TXD U0RXD GPIO19 GPIO18 GND C5 23 Submit Documentation Feedback L1 C GND GND 499 4 GND R2 R1 10nF 32 31 30 29 28 27 26 25 1uF VDDA VDDA XTAL P XTAL N U0TXD U0RXD GPIO19 GPIO18 C4 GND VDD33 C3 DI DO /WP 5 SPID 2 SPIQ 3 SPIWP FLASH-3V3 Pin.1 3V3 Pin.2 EN Pin.3 IO4 Pin.4 IO5 Pin.5 IO6 Pin.6 IO7 Pin.7 IO8 Pin.8 IO9 Pin.9 GND GND B GPIO0 VDD33 CHIP EN GPIO1 GPIO4 GPIO2 GPIO5 GPIO3 GPIO6 GPIO19 EPAD GPIO7 GPIO18 GPIO8 U0TXD GPIO9 U0RXD GPIO10 GND Pin.18 IO0 Pin.17 IO1 Pin.16 IO2 Pin.15 IO3 Pin.14 IO19 Pin.13 IO18 Pin.12 TXD Pin.11 RXD Pin.10 IO10 C ESP32-C3-WROOM-02(pin-out) B Figure 5: ESP32 C3 WROOM 02 Schematics A A Title ESP32-C3-WROOM-02 Size A3 Page Name 02 ESP32-C3-WROOM-02 Rev V1.6 Confidential and Proprietary

5 4 3 2 1 GND XOUT R1 GND ANT1 C8 CONN TBD TBD C9 GND TBD GND LNA IN GPIO0 GPIO1 GPIO2 CHIP EN GPIO3 1 2 3 4 5 6 7 8 LNA IN VDD3P3 VDD3P3 XTAL 32K P XTAL 32K N GPIO2 CHIP EN GPIO3 SPIQ SPID SPICLK SPICS0 SPIWP SPIHD VDD SPI VDD3P3 CPU The values of C8, L2 and C9 vary with the actual PCB board. NC: No component. U2 ESP32-C3-WROOM-02 & WROOM-02U Datasheet v1.3 GPIO4 GPIO5 GPIO6 GPIO7 GPIO8 GPIO9 GPIO10 24 23 22 21 20 19 18 17 R3 R4 R5 100 100 100 R6 R7 100 100 CHIP EN GPIO1 GPIO4 GPIO2 GPIO5 GPIO3 GPIO6 EPAD GPIO19 GPIO7 GPIO18 GPIO8 U0TXD GPIO9 U0RXD GPIO10 GND SPIQ SPID SPICLK SPICS0 SPIWP SPIHD D Pin.18 IO0 Pin.17 IO1 Pin.16 IO2 Pin.15 IO3 Pin.14 IO19 Pin.13 IO18 Pin.12 TXD Pin.11 RXD Pin.10 IO10 C ESP32-C3-WROOM-02U(pin-out) VDD SPI VDD SPI C10 C11 0.1uF 1uF VDD33 R8 10K(NC) GND GND ESP32-C3 VDD33 C12 8 RF ANT L2 GPIO0 SPICS0 1 SPICLK 6 SPIHD 7 /CS CLK /HOLD U3 B VCC 24 Submit Documentation Feedback 3 NC U0TXD U0RXD GPIO19 GPIO18 VDD33 DI DO GND 0.1uF GND 1 2 C7 MTMS MTDI VDD3P3 RTC MTCK MTDO GPIO8 GPIO9 GPIO10 10uF GND GND 33 C6 9 10 11 12 13 14 15 16 C5 GND 0 499 Pin.1 3V3 Pin.2 EN Pin.3 IO4 Pin.4 IO5 Pin.5 IO6 Pin.6 IO7 Pin.7 IO8 Pin.8 IO9 Pin.9 GND 4 0 GND GND 40MHz( 10ppm) R2 GND L1 D1 ESD TBD 32 31 30 29 28 27 26 25 10nF C2 VDDA VDDA XTAL P XTAL N U0TXD U0RXD GPIO19 GPIO18 1uF GND C B C4 GND VDD33 C3 VDD33 2 1 The value of R1 varies with the actual PCB board. VDD33 GND 3 4 GND C1 TBD The values of C1 and C2 vary with the selection of the crystal. U1 XIN GND D /WP 5 SPID 2 SPIQ 3 SPIWP FLASH-3V3 0.1uF GND GND Figure 6: ESP32 C3 WROOM 02U Schematics A A Title ESP32-C3-WROOM-02U Size A4 Date: 5 4 3 2 Page Name 02 ESP32-C3-WROOM-02U Thursday, July 22, 2021 Rev V1.3 Confidential and Proprietary Sheet 2 1 of 2 5 Module Schematics Espressif Systems GND

5 4 3 6 Peripheral Schematics 6 Peripheral Schematics This is the typical application circuit of the module connected with peripheral components (for example, power supply, antenna, reset button, JTAG interface, and UART

ListofTables List of Tables 1 ESP32-C3-WROOM-02(ANT)SeriesComparison 3 2 ESP32-C3-WROOM-02U(CONN)SeriesComparison 3 3 PinDefinitions 10 4 StrappingPins 12