SPWF01SA STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Features

  • 2.4 GHz IEEE 802.11 b/g/n transceiver
  • STM32 ARM Cortex-M3, with 64 KB RAM and 512KB Flash memory – 1MByte Extended Flash for FW update Over The Air (FOTA) only on SPWF01Sx.1y
  • Integrated TCP/IP protocol stack – 8 Simultaneous TCP or UDP clients and 1 Socket server – 1 TLS/SSL Socket client supporting up to TLS 1.2, including common encryption algorithms: AES (128,256), hash (MD5, SHA-1, SHA-256) and public key algorithms (RSA, ECC). – Web Server supporting dynamic web pages – RESTful API to get & post web content
  • WEP/WPA/WPA2 Personal Security
  • System Modes: Station, IBSS, and miniAP
  • miniAP easily provisioned (SSID, PWD)
  • Fast Wi-Fi reconnect after reset
  • TX Power – 18.3 dBm @ 1 Mbps DSSS – 13.7 dBm @ 5 4Mbps OFDM
  • RX Sensitivity – -96.0 dBm @ 1 Mbps DSSS – -74.5 dBm @ 54 Mbps OFDM
  • 16 configurable GPIOs available
  • UART interface to host system
  • Advanced low-power modes – Stand-by with RTC: 43 µA – Sleep connected (DTIM=1): 15 mA – RX Traffic: 105 mA Typical – TX Traffic: 243 mA Typical @ 10 dBm
  • Simple AT command set host interface through UART
  • Small form factor: 26.92 x 15.24 x 2.35 mm
  • Single voltage supply (3.3 V typical)
  • Multiple antenna options: – Integrated antenna (SPWF01SA.xy versions) – Integrated u.fl connector (SPWF01SC.xy versions)
  • Industrial temperature range: -40 °C to 85 °C
  • FCC/CE/IC certified
  • RoHS compliant
  • Surface mount PCB module

Applications

  • Smart appliances
  • Industrial control and data acquisition
  • Home automation and security systems
  • Wireless sensors
  • Cable replacement
  • Medical equipment
  • Machine-to-machine communication

1 Description

features into existing or new products. and voltage regulators. Two different options exist based on the integrated Flash memory. orderable parts integrate 512 kB of Flash. mobile wireless applications, as well as challenging battery-operated applications. stack functionalities via the UART serial port. For details, see the user manual UM1695. Figure 1. Block diagram

2 General electrical specifications

Table 1. Absolute maximum ratings Table 2. Operating conditions and input power specifications(1)

  1. Typical results are at room temperature only.

3 Digital interface specifications

Table 3. Digital interface specifications, I/O pins

4 RF characteristics

Table 4. RF characteristics

9 Mbps 20 dBc

54 Mbps 4 dBc

  1. Output power and sensitivit ies are measured with a 50 Ω connection at the antenna port.

5 Pinout description

Table 5. Pinout description

3.3 V 24 Voltage Supply Decouple with 10uF

  1. The activation of ALT function depends upon the firmware version or upon the variable configuration.
  2. To perform the factory reset of the variables, pin GPIO0 must be high during powerup.
  3. GPIO function running when low power mode variable is enabled.
  4. Introduced with the release 3.0 of AT Full stack. To enable the STAToMiniAP switch the GPIO[7] needs to be put low
  5. To enable the firmware download, pin BOOT0 needs to be high during power up. RESETn need to be pulled low at least 5

ms to initiate the firmware download sequence. pins voltage of the connected device. behaviors using the HW reset. Table 5. Pinout description (continued)

6 Module reflow

recommended final assembly reflow profiles are indicated below. phenomenon, particular attention must be paid to the setup of the peak temperature. STD-020C, July 2004 recommendations. Figure 2. Soldering profile Table 6. Soldering values Time from 25 °C to peak temperature 8 minutes max.

7 Regulatory compliance

The RF certifications obtained are described in Table 7 below. may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

  1. The device must not cause harmful interference.
  2. The device must accept any interference received, including interference that may

for compliance may render void the user's authority to operate this equipment. as a modular transmitter device. Table 7. RF certification summary

Any similar wording that expresses the same meaning may also be used. Figure 3. CE certified

8 Package mechanical data

specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 4. Top view of the module shield

is not shown in this diagram. Figure 7. Wi-Fi footprint

9 Ordering information

Table 8. Ordering information

Table 9. Document revision history 05-Dec-2013 1 Initial release. 22-Jan-2014 2 Figure 3 has been modified. 11-Nov-2015 6 Update picture in first page.