ESP-WROOM-5C User Manual Version 0.1 Espressif Systems Copyright 2019 www.espressif.com About This Guide This document provides introduction to the specications of ESP-WROOM-5C hardware. Release Notes Date 2019.01 Version V0.1 Release notes For certication only. Documentation Change Notication Espressif provides email notications to keep customers updated on changes to technical documentation. Please subscribe at https://www.espressif.com/en/subscribe. Certication Download certicates for Espressif products from https://www.espressif.com/en/
certicates. Table of Contents 1. Overview 2. Pin Description 3. Functional Description
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.......................................................................................................... 7 3.1. CPU
.......................................................................................................................... 7 3.2. Memory ................................................................................................................................. 7 3.2.1. Internal SRAM and ROM
...........................................................................................7 3.2.2. SPI Flash
....................................................................................................................7 3.3. Crystal Oscillator
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................................................................................................................ Interface Description 4. Electrical Characteristics ......................................................................................................9 4.1. Electrical Characteristics
..........................................................................................................9 4.2. Wi-Fi Radio
..............................................................................................................................9 4.3. Power Consumption
.................................................................................................................10 4.4. Reow Prole ...........................................................................................................................11 4.5. Electrostatic Discharge ..........................................................................................................12 5. Dimensions ..........................................................................................................................13 6. Recommended PCB Land Pattern .....................................................................................14 1. 1. Overview Overview Espressif now offers a side-mounted module ESP-WROOM-5C based on ESP8285. Figure 1-1. ESP-WROOM-5C Module Table 1-1. ESP-WROOM-5C Specications Categories Test Items Reliablity Wi-Fi Wi-Fi protocols Frequency range Peripheral interface Hardware Operating voltage Operating current Minimum current delivered by power supply Specications HTOL/HTSL/uHAST/TCT/ESD 802.11 b/g/n20 2412 MHz ~ 2462MHz I2C/IR Remote Control GPIO/PWM 2.7V ~ 3.6V Average: 80 mA 500 mA Operating temperature range
-40C ~ 105C Storage temperature
-40C ~ 105C External interface
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Wi-Fi mode Security Encryption Station/SoftAP/SoftAP + Station WPA/WPA2 WEP/TKIP/AES Software Firmware upgrade UART Download/OTA (via network) Espressif 2019.01 1
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1. Overview Categories Software Items Specications Software development Network protocols User conguration Supports Cloud Server Development/SDK for custom rmware development IPv4, TCP/UDP/HTTP Cloud Server, Android/iOS app Table 1-2. Antenna Specications Parameter Model Type Assembly Description ESP ANT B PCB PTH Image Gain Dimensions unit:mm Espressif
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Parameter Description Image 1. Overview Pattern Plots Espressif
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Parameter Description Image 1. Overview Pattern Plots CONFIDENTIAL Espressif 2019.03
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2. 2. Pin Description Pin Description Figure 2-1 and Figure 2-2 show the pin distribution of the ESP-WROOM-5C. CONFIDENTIAL Figure 2-2. ESP-WROOM-5C Pin Layout (Bottom View) Figure 2-1. ESP-WROOM-5C Pin Layout (Top View) Espressif 2019.01
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2. Pin Description ESP-WROOM-5C has 15 pins. Please see the pin denitions in Table 2-1. Table 2-1. ESP-WROOM-5C Pin Denitions 1 11 No. 3V3 Pin Name 2 3 4 5 6 7 8 9 10 EN IO14 IO5 GND IO12 IO13 IO4 EN GND Functional Description 3.3V power supply (VDD) Note:
It is recommended the maximum output current a power supply provides be of 500 mA or above. Chip enable pin. Active high. GPIO14 GPIO5 GND GPIO12 GPIO13 GPIO4 Chip enable pin. Active high. GND GPIO0 UART download: pull down. Flash boot: oating or pull up. 3.3V power supply (VDD) Note:
It is recommended the maximum output current a power supply provides be of 500 mA or above. UART0_RXD, receive end in UART download;
GPIO3 UART0_TXD, transmit end in UART download, oating or pull up;
GPIO1 GND CONFIDENTIAL Pins 1 ~ 8 are pluggable pads that can be welded to your own development board, while pins 9 ~ 15 are reserved for testing and cannot be welded to the development board. Note:
Espressif 2019.01 GND RXD TXD 3V3 IO0 12 13 14 15
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3. Functional Description 3. 3.1. CPU controller, and can also be used to visit ash;
3.2. Memory 3.2.1. Programmable RAM/ROM interfaces (iBus), which can be connected with memory Data RAM interface (dBus), which can connected with memory controller;
AHB interface which can be used to visit the register. Functional Description The ESP8285 integrates a Tensilica L106 32-bit RISC processor, which achieves extra- low power consumption and reaches a maximum clock speed of 160 MHz. The Real-Time Operating System (RTOS) and Wi-Fi stack allow 80% of the processing power to be available for user application programming and development. The CPU includes the interfaces as below:
CONFIDENTIAL ESP-WROOM-5C uses a 26-MHz crystal oscillator. The accuracy of the crystal oscillator should be 10 PPM. When using the download tool, please select the right type of crystal oscillator. In circuit design, capacitors C1 and C2 which connect to the earth are added to the input and output terminals of the crystal oscillator respectively. The values of the two capacitors can be exible, ranging from 6 pF to 22 pF, however, the specic capacitive values depend on further testing of, and adjustment to, the overall performance of the whole circuit. Normally, the capacitive values of C1 and C2 are within 10 pF for the 26-MHz crystal oscillator. ESP8285 SoC integrates the memory controller including ROM and SRAM. MCU can access the memory controller through iBus, dBus, and AHB interfaces. All memory units can be accessed upon request. A memory arbiter determines the running sequence in the arrival order of requests. 3.3. Crystal Oscillator ESP8285 has a built-in SPI ash to store user programs. Memory size: 1 MB SPI mode: Dual SPI Internal SRAM and ROM 3.2.2. SPI Flash Espressif 2019.01 7
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IR I2C PWM 3.4. Interface Pin 3. Functional Description IO14 (IR_T), IO5
(IR_R) Table 3-1. Interface Description IO12 (R), IO15 (G), IO13 (B) Interface Description IO14 (SCL), IO5 (SDA) Connects to external sensors and display screens, etc. (You can Functional Description Currently the PWM interface has four channels, but users can extend it to ve channels. PWM interface can realize the control of LED lights, buzzers, relays, electronic machines, etc. The functionality of the infrared remote control interface can be realized via software programming. The interface uses NEC coding, modulation, and demodulation. The frequency of the modulated carrier signal is 38 kHz. (You can congure this interface to other GPIO) CONFIDENTIAL Communicates with the UART device. Downloading: U0TXD + U0RXD or GPIO2 + U0RXD Communicating (UART0): You need to exchange the inner pins of UART in the software before use IO15 (U0TXD) and IO13 (U0RXD). UART0: IO15
(U0TXD), IO13
(U0RXD) congure this interface to other GPIO) Functional Description Interface Pin UART Espressif
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4. Electrical Characteristics 4. Electrical Characteristics Note:
Unless otherwise specied, measurements are based on VDD = 3.3V, TA = 25C. 4.1. Electrical Characteristics Table 4-1. Electrical Characteristics Parameter Storage temperatue Operating temperature Maximum soldering temperature
(Condition: IPC/JEDEC J-STD-020) Supply voltage Input logic level low Input logic level high Output logic level low Output logic level high Symbol
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VDD VIL VIH VOL VOH Min 40 40
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2.7 0.3 0.75 VDD
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0.8 VDD Typ Normal 20
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3.3
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Max 105 105 260 3.6 0.25 VDD VDD + 0.3 0.1 VDD
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Unit V V V V V 4.2. Wi-Fi Radio Description Input frequency Input reection Output Impedance RF output power Table 4-2. Wi-Fi Radio Characteristics Min 2412
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Typ
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50 Output Power 802.11b:18.09dBm 802.11g:22.84dBm 802.11n20:22.68dBm Sensitivity Max 2462 10
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Unit MHz dB DSSS, 1 Mbps
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96
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dBm Espressif 9 2019.01
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4. Electrical Characteristics CCK, 11 Mbps 6 Mbps (1/2 BPSK) 54 Mbps (3/4 64-QAM) HT20, MCS7 (65 Mbps, 72.2 Mbps)
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87 90 73 69
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dBm dBm dBm dBm
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37 21 37 20 dB dB dB dB Adjacent channel rejection Table 4-3. Power Consumption 4.3. Power Consumption OFDM, 6 Mbps OFDM, 54 Mbps HT20, MCS0 HT20, MCS7 Modes Tx 802.11b, CCK 11 Mbps, POUT = +17 dBm The following power consumption data were obtained from the tests with a 3.3V power supply and a voltage stabilizer, in 25C ambient temperature. All data are based on 50%
duty cycle in continuous transmission mode. CONFIDENTIAL Tx 802.11g, OFDM 54 Mbps, POUT = +15 dBm Tx 802.11n, MCS7, POUT = +13 dBm Rx 802.11b, 1024 bytes packet length , 80 dBm Rx 802.11g, 1024 bytes packet length , 70 dBm Rx 802.11n, 1024 bytes packet length , 65 dBm Modem-sleep Light-sleep Deep-sleep Power Off 140 120 50 56 56 mA mA mA mA mA Max
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Espressif Unit mA 2019.01 Min
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Typ 170
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mA mA 0.9 0.5 A A 15 20 10
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4. Electrical Characteristics
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e r u t a r e p m e T 4.4. Reow Prole During Deep-sleep mode,Wi-Fi is turned off. For applications with long time lags between data During Light-sleep mode, the CPU may be suspended in applications like Wi-Fi switch. Without data Notes:
Modem-sleep mode is used in the applications that require the CPU to be working, as in PWM or I2S applications. According to 802.11 standards (like U-APSD), it shuts down the Wi-Fi Modem circuit while maintaining a Wi-Fi connection with no data transmission to optimize power consumption. E.g. in DTIM3, maintaining a sleep of 300 ms with a wakeup of 3 ms cycle to receive APs Beacon packages at interval requires about 15 mA current. transmission, e.g. a temperature sensor that detects the temperature every 100s, sleeps for 300s and wakes up to connect to the AP (taking about 0.3 ~ 1s), the overall average current is less than 1 mA. The current of 20 A is acquired at the voltage of 2.5V. transmission, the Wi-Fi Modem circuit can be turned off and CPU suspended to save power consumption according to the 802.11 standards (U-APSD). E.g. in DTIM3, maintaining a sleep of 300 ms with a wakeup of 3 ms to receive APs Beacon packages at interval requires about 0.9 mA current. CONFIDENTIAL Ramp-up zone Temp.: <150 Time: 60 ~ 90s Ramp-up rate: 1 ~ 3/s Preheating zone Temp.: 150 ~ 200 Time: 60 ~ 120s Ramp-up rate: 0.3 ~ 0.8/s Reow zone Temp.: >217 60 ~ 90s; Peak Temp.: 235 ~ 250 (<245 recommended) Time: 30 ~ 70s Cooling zone Peak Temp. ~ 180 Ramp-down rate: -1 ~ -5/s Solder Sn&Ag&Cu Lead-free solder (SAC305) Figure 4-1. ESP-WROOM-5C Reow Prole 150 ~ 200 60 ~ 120s Peak Temp. 235 ~ 250 Espressif Cooling zone
-1 ~ -5/s 2019.01 Preheating zone Ramp-up zone
217 60 ~ 90s Soldering time Time (sec.) Reow zone 1 ~ 3/s 25 0 217 200
> 30s 150 200 100 250 250 100 50 50 0 11
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4.5. Electrostatic Discharge 4. Electrical Characteristics Table 4-4. Electrostatic Discharge Parameters 2 V C2 500 Unit 2000 VESD
(HBM) VESD
(CDM) Level Max Symbol Reference Temperature: 23 5 Basedon JEDEC EIA/JESD22 - C101F Temperature: 23 5 Basedon ANSI/ESDA/JEDEC JS - 001 - 2014 Name Electrostatic Discharge
(Human - Body Model) Electrostatic Discharge
(Charged - Device Model) CONFIDENTIAL Espressif 2019.01 12
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5. 7. Dimensions Dimensions
. 2 7 3 8 3 2 8 1 1 0 0 9 0.76 2 7 3 8 3 2 8 1 1 2 5 5 1 1 3 5 7 1 0.25 0.76 0 0 6 1 1 4 0 1 0 0 6 1 1 4 0 1 14.00
0.50 Antenna Area Antenna Area Top View Side View 4.50 5.50 6.20 8.20 10.61 15.50 19.00 0.30 3.30 3.50 4.34 19.00 Bottom View Module Width Module Length Unit: mm T= 0.10 ESP-WROOM-5C DIMENSIONS 0.80 PCB Thickness 3.20 Module Thickness CONFIDENTIAL Figure 7-1. ESP-WROOM-5C Dimensions Espressif 2019.01 13
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8. Recommended PCB Land Pattern 7.20 4.20 4.05 3.15 3.00 6. Unit: mm T= 0.1mm Recommended PCB Land Pattern ESP-WROOM-5C PCB Footprint Dimensions CONFIDENTIAL Figure 8-1. Recommended PCB Land Pattern of ESP-WROOM-5C Espressif 2019.01 0.47 1.75 3.01 9.37 9.85 14
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FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This device complies with part 15 of the 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 Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. FCC Label Instructions:
The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as: Contains Transmitter Module FCC ID: 2AC7Z-ESPWROOM5C,or Contains FCC ID: 2AC7Z-ESPWROOM5C, Any similar wording that expresses the same meaning may be used. Regulatory Module Integration Instructions This device complies with part 15.247 of the FCC Rules. The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The antenna is integral PCB Antenna and maximum gain is 3.42dBi . This Wi-Fi module has been granted modular approval for mobile applications. OEM integrators for host products may use the module in their final products without additional FCC certification if they meet the following conditions. Otherwise, additional FCC approvals must be obtained. The host product with the module installed must be evaluated for simultaneous transmission requirements. The users manual for the host product must clearly indicate the operating requirements and conditions that must be observed to ensure compliance with current FCC RF exposure guidelines. To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, use this module only with the included onboard antenna. The final host / module combination may also need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device. Disclaimer and Copyright Notice Information in this document, including URL references, is subject to change without notice. THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. All liability, including liability for infringement of any proprietary rights, relating to use of information in this document is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein. The Wi-Fi Alliance Member logo is a trademark of the Wi-Fi Alliance. The Bluetooth logo is a registered trademark of Bluetooth SIG. All trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are hereby acknowledged. Copyright 2019 Espressif Inc. All rights reserved. Espressif IoT Team www.espressif.com