Data Sheet

Silicon Labs
DESCRIPTION
WF121 is a self-contained Wi-Fi module
providing a fully integrated 2.4GHz 802.11
b/g/n radio and a 32-bit microcontroller (MCU)
platform, making it an ideal product for
embedded applications requiring simple, low-
cost and low-power wireless TCP/IP
connectivity. WF121 also provides flexible
interfaces for connecting to various
peripherals.
WF121 allows end user applications to be
embedded onto the on-board 32-bit
microcontroller using a simple BGScript
TM
scripting. This cuts out the need of an
external MCU and allows the development of
smaller and lower-cost products. However
WF121 can also be used in modem-like mode
in applications where the external MCU is
needed.
With an integrated 802.11 radio, antenna,
single power supply, and regulatory
certifications, WF121 provides a low-risk and
fast time-to-market for applications requiring
Internet connectivity. This combined with
Bluegiga’s excellent customer service will turn
your Internet-of-Things applications into
reality.
APPLICATIONS:
• PoS terminals
• RFID and laser scanners
• Wi-Fi internet radios and audio
streaming products
• Wireless cameras
• Video streaming
• Portable navigation devices
• Portable handheld devices
• Wi-Fi medical sensors
• Wireless picture frames
KEY FEATURES:
 2.4GHz band IEEE 802.11 b/g/n radio
 Excellent radio performance:
 TX power: +16 dBm
 RX sensitivity: -97 dBm
 Host interfaces:
 20Mbps UART
 SPI
 USB device
 Peripheral interfaces:
 GPIO, ADC and timers
 I2C, SPI and UART
 Ethernet
 Embedded TCP/IP and 802.11 MAC
stacks:
 IP, TCP, UDP, DHCP and DNS
protocols
 BGAPI host protocol for modem
like usage
 BGScript
TM
scripting language
 32-bit embedded microcontroller
 80MHz, 128kB RAM and 512kB
Flash
 MIPS architecture
 Temperature range: -40
o
C to +85
o
C
 Fully CE, FCC, IC, South Korea and
Japan qualified
PHYSICAL OUTLOOK:
WF121-A