Wireless-Tag Technology Co., Ltd. V1.0.2 WT32C3-S5 Datasheet V1.0.2 July 15, 2021 Wireless-Tag Technology Co., Ltd. I Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
Wireless-Tag Technology Co., Ltd. V1.0.2 About this document This document provides users with the technical specifications for WT32C3-S5. Document updates Please visit Wireless-Tag’s official website to download the latest version of the document. Revision history Please go to the document revision history page to view the revisions of the document. Disclaimer and copyright notice Information in this paper, including URL references, is subject to change without prior notice.
V1.0.2 Revision History No. Version Changes Change (+/-) Descriptions Author 1 V1.0.0 C Created the document Fiona 2 V1.0.1 C Updated pin definition Fiona 3 V1.0.2 A Added current consumption Fiona Date January 13, 2021 June 15, 2021 July 15, 2021 *Changes：C――create, A——add, M——modify, D——delete III Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 Contents 1 Overview........................................................................................................................................................1 2 Features.......................................................................................................................................................... 2 3 Hardware Specifications................................................................................................................................ 3 3.
V1.0.2 1 Overview WT32C3-S5 WiFi module is a low-power, cost-effective embedded wireless network control module, which is an ideal choice for smart grid, building automation, security system, smart home, telemedicine and other IoT applications. The module’s core processor ESP32-C3 integrates an industry-leading 32-bit RISC-V single-core microprocessor with a maximum clock speed of 160 MHz in a small-sized package. It comes with an on-board PCB antenna. The module supports for the standard IEEE802.
V1.0.2 2 Features SMD-22 package On-board PCB antenna Operating voltage: 3.3V Operating ambient temperature: -20-85°C ESP32-C3 chip embedded, 32-bit RISC-V single-core microprocessor, up to 160MHz SRAM 400KB RTC SRAM 8KB ROM 384KB Embedded Flash System 4MB WIFI IEEE 802.11 b/g/n protocol 1T1R mode with data rate up to 150 Mbps WIFI @2.
V1.0.2 3 Hardware Specifications 3.1 Block Diagram Figure 1 Block Diagram 3.2 Pin Descriptions Figure 2 Pin Layout Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 Table 1 Pin Definitions and Descriptions Pin Name 1 IO0 GPIO0, ADC1_CH0, XTAL_32K_P (32.768 kHz crystal input) 2 IO1 GPIO1, ADC1_CH1, XTAL_32K_N (32.768 kHz crystal output) EN Chip Enable pin: High level: on, enables the chip. Low level: off, low current. 3 Description Note: Do not leave the EN pin floating. 4 IO2 GPIO2, ADC1_CH2, FSPIQ 5 IO4 GPIO4, MTMS, ADC1_CH4, FSPIHD 6 IO5 GPIO5, MTDI, ADC2_CH0, FSPIWP 7 IO6 GPIO6, MTCK, FSPICLK 8 VCC 3.
V1.0.2 watchdog reset, crystal clock glitch detection reset), the latches of the strapping pins sample the voltage level as strapping bits of “0” or “1”, and hold these bits until the chip is powered down or shut down. By default, GPIO9 is connected to the internal pull-up resistor. If GPIO9 is not connected or connected to an external high-impedance circuit, the latched bit value will be “1”.
V1.0.2 Note: 1. The strapping combination of GPIO8 = 0 and GPIO9 = 0 is invalid. Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 4 Electrical Characteristics 4.1 Absolute Maximum Ratings Stresses above those listed in 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. 4.
V1.0.2 Work mode Light-sleep Deep-sleep Power off Description Typical value EN is set to low level 0.3mA 6.5uA 0 Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 5 Application Note 5.1 Module Dimensions Figure 4 Module Dimensions 5.2 Reflow Profile Figure 5 Reflow profile Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 5.3 Module Schematics Figure 6 Module Schematics 5.4 Peripheral Schematic This is the typical application circuit of the module connected with peripheral components (for example, power supply, antenna, reset button, JTAG interface, and UART interface). Figure 7 Application Circuit Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 Soldering the EPAD to the ground of the base board is not a must, though doing so can get optimized thermal performance. If you do want to solder it, please ensure that you apply the correct amount of soldering paste. To ensure the power supply to the ESP32-C3 family chip is stable during power-up, it is advised to add an RC delay circuit at the EN pin. The recommended setting for the RC delay circuit is usually R = 10 kΩ and C = 1 µF.
V1.0.2 6 Product Trial Sales email：sales@wireless-tag.com Technical support email：technical@wireless-tag.com Copyright ©2020 Wireless-Tag Technology Co., Ltd. All Rights Reserved. http://www.wireless-tag.
V1.0.2 Federal Communication Commission Statement (FCC, U.S.) 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 generates, 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.
V1.0.2 Validity of using the module certification: In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product.
V1.0.2 BLE Specification： Operation Frequency: 2402~2480MHz Number of Channel: 40 Modulation: GFSK Type: PCB Antenna Gain: 2 dBi The module can be used for mobile or applications with a maximum 2dBi antenna. The host manufacturer installing this module into their product must ensure that the final composit product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operaition.
V1.0.2 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating “Contains Transmitter Module FCC ID: 2AFOS-WT32C3-S5” with their finished product. 2.
V1.0.2 Manufacturer's Name: Wireless-Tag Technology Co., Ltd Sample Description: WIFI Module Trade Mark: wireless-tag Model number: WT32C3-S5 This device was tested for operations. To comply with RF exposure requirements, a minimum separation distance of 20cm must be maintained between the user’s body and the product, including the antenna. Use only the supplied or an approved antenna. This device in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU.
