ESP-C3-12F Specification V1.0 ESP-C3-12F Specification Version V1.0 Copyright 2021 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 1 of 19 Disclaimer and copyright notice ESP-C3-12F Specification V1.0 The information in this article, including the URL address for reference, is subject to change without prior notice. The documentation is provided "as is" without any warranty, including any warranties of merchantability, fitness for a particular purpose, or non-infringement, and any warranties mentioned in the proposal, specification or sample. This document is not responsible for any infringement of any patent rights arising out of the use of the information in this document. No license, express or implied, by estoppel or otherwise, is hereby granted. The test data obtained in this paper are all obtained by Ai-Thinker laboratory , and the actual results may be slightly different. The Wi-Fi alliance membership mark is owned by the WiFi alliance. All trade mark names, trademarks and registered trademarks mentioned herein are the property of their respective owners and are hereby declared. The final interpretation right is owned by Shenzhen Ai-Thinker Technology Co., Ltd. Note The contents of this manual may be changed due to the version upgrade of the product or other reasons. Shenzhen Ai-Thinker Technology Co., Ltd. reserves the right to modify the contents of this manual without any notice. This manual is only used as a guide, and Shenzhen Ai-Thinker Technology Co., Ltd. makes every effort to provide accurate information in this manual, but Shenzhen Ai-Thinker Technology Co., Ltd. does not ensure that the contents of the manual are completely true,, All statements and information in this manual. and the recommendations do not constitute for any warranty, express or implied. Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 2 of 19 ESP-C3-12F Specification V1.0 Document development/revision/revocation resume Vision Data Revised content Edition Approve V1.0 2021.02.24 First Edition Deng Chaomei Ning Guan Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 3 of 19 ESP-C3-12F Specification V1.0 CONTENT 1 Product Overview ........................................................................................................................................... 5 1.1. Characteristics .................................................................................................................................... 6 1.2. Main parameters ................................................................................................................................. 7 2 Electrical parameters ...................................................................................................................................... 8 2.1. Electrical characteristics ..................................................................................................................... 8 2.2. WIFI RF performance ........................................................................................................................ 8 2.3. BLE RF performance ......................................................................................................................... 9 2.4. Power consumption ............................................................................................................................ 9 3 Appearance dimensions ................................................................................................................................ 11 4 Pin definition ................................................................................................................................................ 13 5 Schematic diagrams ...................................................................................................................................... 15 6 Design guidance ........................................................................................................................................... 16 6.1. Note ...................................................................... 16 6.2. Antenna layout requirements ............................................................................................................ 16 6.4. GPIO Interface.................................................................................................................................. 17 7 Reflow soldering .......................................................................................................................................... 18 8 Packaging information ................................................................................................................................. 19 9 Contact us ..................................................................................................................................................... 19 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 4 of 19 1 Product Overview ESP-C3-12F Specification V1.0 ESP-C3-12F is a Wi-Fi module developed by Ai-Thinker. This module core processor ESP32-C3 is a Wi-Fi+ BLE combination of system-level chips (SoC), designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc. ESP32-C3 with industry-leading low power and RF performance, supporting Wi-Fi IEEE802.11b/g/n agreements and BLE 5.0. ESP32-C3 chip is equipped with 32-bit RISC-V single-core processor, operating frequency up to 160 MHz. The chip is support to have secondary development without using other microcontrollers or processors. The chip has a built-in 400 KB SRAM384 KB ROM8KB RTC SRAM.Also, the chip support external Flash while it built-in 4Mbit Flash. ESP32-C3 chip supports a variety of low-power consumption working states, which can meet the power consumption requirements of various application scenarios. The chip's unique features such as fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustable function can achieve the best balance between communication distance, communication speed and power consumption. ESP-C3-12F provides a wealth of peripheral interfaces, including UARTPWMSPII2S I2CADCtemperature sensor and there are 15 GPIOs. ESP-C3-12F has a variety of unique hardware safety mechanisms.The hardware encryption accelerator supports AESSHA and RSA algorithm. Among them, RNG, HMAC and Digital Signature modules provide more security features. Other security features include flash encryption and se-cure boot signature verification, etc. The perfect security mechanism enables the chip to be perfectly applied to various encryption products. ESP-C3-12F module supports low-power BluetoothBluetooth5 and Bluetooth mesh. Bluetooth rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps. Support broadcast extension, multi-broadcasting, channel selection. Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 5 of 19 ESP-C3-12F Specification V1.0 1.1. Characteristics Complete Wi-Fi 802.11b/g/n1T1R mode data rate up to 150Mbps Support BLE5.0 and rate support 125Kbps 500Kbps1Mbps,2Mbps 32-bit RISC-V single-core processor, supports a clock frequency of up to 160 MHz, with 400 KB SRAM384 KB ROM8KB RTC SRAM Support UART/PWM/GPIO/ADC/I2C/I2S interface, temperature sensor, pulse counter SMD-22 package Support multiple sleep modes, deep sleep electric current is less than 5uA Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 6 of 19 UART rate up to 5Mbps Support STA/AP/STA+AP mode and mix mode ESP-C3-12F Specification V1.0 Support Smart Config (APP)/AirKiss (WeChat) of Android and IOS One-click network configuration Support UART port local upgrade and remote firmware upgrade (FOTA) General AT commands can be better understand Support secondary development, integrated Linux development environment About Flash configuration Acquiesce in using the built-in 4MByte Flash. 1.2. Main parameters Table 1 main parameter descriptions Model Name ESP-C3-12F Package SMD-22 Size 24.0*16.0*3.1(0.2)mm Antenna On-board PCB antenna/IPEX 2400 ~ 2483.5MHz
-40 ~ 85
-40 ~ 125 , < 90%RH Frequency Range Operating Temperature Store Temperature Power supply range Support Interface Voltage 3.0V ~ 3.6VElectrical current >500mA UART/GPIO/ADC/PWM/I2C/I2S IO IO0,IO1,IO2,IO3,IO4,IO5,IO6,IO7,IO8,IO9,IO10,IO18,IO19IO20,IO21 UART Rate Support 110 ~ 4608000 bps default 115200 bps Bluetooth BLE 5.0 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 7 of 19 Security WEP/WPA-PSK/WPA2-PSK ESP-C3-12F Specification V1.0 SPI Flash Default allocation 4MBytesupport 2MByte version 2 Electrical parameters ESP-C3-12F module is electrostatic sensitive devices and special precautions need to be taken when handling 2.1. Electrical characteristics Parameters Conditions Min Max Unit Typical values Supply voltage VDD 3.0 3.3 3.6
-0.3/0.75VDD 0.25VDD/VDD+0.3 V N/0.8VIO
0.1VIO/N 12 V V mA VIL/VIH I/O VOL/VOH IMAX
2.2. WIFI RF performance Description Operating frequency Typical values 2400 - 2483.5 Output power 11n mode HT40PA output power 11n mode HT20PA output power 132 132 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Unit MHz dBm dBm Page 8 of 19 ESP-C3-12F Specification V1.0 Receiving sensitivity 132 13 2
-962
-882
-922
-752
-732
-702 11g modePA output power 11b modePA output power CCK, 1 Mbps CCK, 11 Mbps 6 Mbps (1/2 BPSK) 54 Mbps (3/4 64-QAM) HT20 (MCS7) HT40 (MCS7) 2.3. BLE RF performance Transmit power Sensitivity@30.8%PER 2.4. Power consumption Description Typical values unit Receiving sensitivity Low Energy consumption BLE: 1M Output power
-32
-962 dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm The following power consumption data are based on a 3.3 V power supply, 25C ambient temperature and measured using an internal voltage regulator. All measurements were completed at the antenna interface without SAW filters All emission data are based on a duty cycle of 100%, measured in the mode of continuous emission. Mode Tx 802.11b, CCK 1Mbps, POUT=+20dBm Tx 802.11g, OFDM 54Mbps, POUT
=+18dBm Mix
Typical values 345 285 Max Unit
mA mA Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 9 of 19 Tx 802.11n, MCS7, POUT =+17dBm Rx 802.11b,1024 bit Rx 802.11g,1024 bit Rx 802.11n,1024 bit Modem-Sleep Light-Sleep Deep-Sleep Power Off ESP-C3-12F Specification V1.0 280 82 82 84 20 130 5 1
mA mA mA mA mA A A A
Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 10 of 19 3 Appearance dimensions ESP-C3-12F have two FLASHincluding external FLASH and build-in FLASH
(The rendering is for reference only, the actual product shall prevail) External2MByte FLASH:
ESP-C3-12F Specification V1.0 Build-in 4MByte FLASH:
Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 11 of 19 ESP-C3-12F Specification V1.0 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 12 of 19 4 Pin definition ESP-C3-12F Specification V1.0 ESP-C3-12F Diagram of Pin ESP-C3-12F module is connected to 22 interfaces, refer to pin diagram, pin function definition table is interface definition. Table ESP-C3-12F Pin function definition No. Name Function 1 2 3 4 5 6 7 IO0 IO1 EN IO2 IO3 IO4 IO5 GPIO0,ADC1_CH0,XTAL_32K_N GPIO1,ADC1_CH1,XTAL_32K_N High level: chip enabled;
Low level: chip shutdown;
Pay attention not to leave the CHIP_PU pin floating GPIO2,ADC1_CH2,FSPIQ GPIO03,ADC1_CH3 GPIO04,ADC1_CH4,FSPIHD,MTMS GPIO05,ADC2_CH0,FSPIWP,MTDI Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 13 of 19 VCC VCC ESP-C3-12F Specification V1.0 GPIO6,FSPICLK,MTCK GPIO7,FSPID,MTDO NC NC NC IO6 IO7 NC NC NC NC NC GND GND IO8 GPIO8 IO9 GPIO9 IO19 GPIO19 IO18 GPIO18 IO10 GPIO10,FSPICSO 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Pin IO8 IO9 RX TX UART0_RX,GPIO20 UART0_TX,GPIO21 Table Module Start-up Mode Description System start-up mode Default SPI Start up mode non Pull up
1 Download Start up Mode 1 0 Note: Some pins have been internally pulled up, please refer to the schematic Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 14 of 19 ESP-C3-12F Specification V1.0 5 Schematic diagrams Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 15 of 19 6 Design guidance ESP-C3-12F Specification V1.0 6.1. Note 1When GPIO20 is used as U1RXD, a pull-up resistor needs to be added externally. 6.2. Antenna layout requirements 1 For the installation position on the motherboard, the following two methods are recommended Solution 1: Put the module on the edge of the main board, and the antenna area extends out of the edge of the main board. Solution 2: Put the module on the edge of the main board, and hollow out an area at the antenna position on the edge of the main board. 2 In order to meet the performance of the on-board antenna, metal parts are forbidden to be placed around the antenna, away from high frequency devices. 6.3. Power supply
(1) Recommend 3.3V voltage, peak current above 500mA
(2) It is recommended to use LDO for power supply; if DC-DC is used, the ripple is recommended to be controlled within 30mV.
(3) DC-DC the power supply circuit, it is suggested to reserve the position of output ripple can be optimized when the load changes greatly.
(4) It is recommended to add ESD devices to the 3.3V power interface. Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 16 of 19 ESP-C3-12F Specification V1.0 6.4. GPIO Interface
(1) The module periphery leads to some GPIO ports, such as the recommended resistance of 10-100 Ohms in series on the IO port. This can suppress overshoot, to ensure both sides of the level more stable. helpful for both EMI and ESD.
(2) For special IO, please refer to the specification, which will affect the starting configuration of the module.
(3) The IO port of the module voltage is 3.3 V, if the main control does not match the IO level of the module, require to add the level conversion circuit.
(4) When the IO port is connected directly to the peripheral interface, or the pin header and other terminals, it is recommended to reserve ESD device near the terminal. Table Electrical level conversion circuit Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 17 of 19 7 Reflow soldering ESP-C3-12F Specification V1.0 Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 18 of 19 Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules The ESP-C3-12F is an Wi-Fi & BT Module with digitally modulated systems using an GFSK,DSSS,OFD technology;
modulation. It operates on the 2400-2483.5MHz band and, therefore, is within U.S. FCC part 15.247 standard 2.3 Specific operational use conditions The EUT is a Wi-Fi & BT Module Operation Frequency: BT:2402MHz~2480MHz, WIFI:2412MHz~2462MHz Modulation Type: BT:GFSK, WIFI: DSSS with DBPSK/DQPSK/CCK for 802.11b;
OFDM with BPSK/QPSK/16QAM/64QAM for 802.11g/n;
Number Of Channel: BT:40 WIFI: 11 channels for 802.11b/g/11n(HT20); 7 channels for 802.11n(HT40);
Antenna Designation: ESP-C3-12F/ ESP-C3-32S/ ESP-C3-13/ ESP-C3-01M Type of antenna is PCB Antenna, ESP-
C3-13U Type of antenna is FPCB Antenna Antenna Gain: 2.0dBi ESP-C3-12F is a Wi-Fi & BT Module developed by Ai-Thinker Technology. This module core processor ESP32-C3 is a Wi-Fi+ BLE combination of system-level chips (SoC), designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc. ESP32-C3 with industry-leading low power and RF performance, supporting Wi-Fi IEEE802.11b/g/n agreements and BLE 5.0. ESP32-C3 chip is equipped with 32-bit RISC-V single-core processor, operating frequency up to 160 MHz. 2.4 Limited module procedures not applicable; Single Modular Approval Request 2.5 Trace antenna designs Not applicable;
2.6 RF exposure considerations To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna. 2.7 Antennas The ESP-C3-12F is an Wi-Fi & BT Module beams signals and communicates with its antenna, which is only the antenna equipped with the package are allowed. Antenna. The PCB Antenna gain is 2.0dBi. Antenna could not be in no-load state when module is working. During debugging, it is suggested to add 50 ohms load to the antenna port to avoid damage or performance degradation of the module under long-time no-load condition. 2.8 Label and compliance information The final end product must be label in a visible area with the following Host must Contains FCC ID: 2ATPO-ESP-C3-X. If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation. 2.9 Information on test modes and additional testing requirements Data transfer module demo board can control the EUT work in RF test mode at specified test channel. 2.10 Additional testing, Part 15 Subpart B disclaimer The module without unintentional-radiator digital circuit, so the module does not required an evaluation by FCC Part 15 Subpart B. The host should be evaluated by the FCC Subpart B. ATTENTION This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) This device and its antenna(s) must not be colocated with any other transmitters except in accordance with FCC multitransmitter product procedures. Referring to the multitransmitter policy, multiple transmitter(s) and module(s) can be operated simultaneously without C2P. 3) For all products market in US, OEM has to limit the Operating Frequency: BT:2402MHz~2480MHz, WIFI:2412MHz~2462MHz by supplied firmware programming tool. OEM shall not supply any tool or info to the enduser regarding to Regulatory Domain change. USERS MANUAL OF THE END PRODUCT:
In the user manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radiofrequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation. FCC WARNING conditions:
This device complies with part 15 of the FCC Rules. Operation is subject to the following two Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help. ESP-C3-12F Specification V1.0 8 Packaging information Refer to below image,ESP-C3-12F package is in Tape/Reel. 9 Contact us Official websitehttps://www.ai-thinker.com Development DOCS https://docs.ai-thinker.com Official Forumhttp://bbs.ai-thinker.com Sample purchasehttps://ai-thinker.en.alibaba.com/
Business cooperationoverseas@aithinker.com Technical supportsupport@aithinker.com District, Shenzhen. Tel 0755-29162996 Company AddressRoom 403,408-410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Xixiang, Baoan Copyright 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 19 of 19