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OWL253, OWS451

Wi-Fi SPI/SDIO/UART modules

OWL253, OWS451 is an older generation product. For new designs see:
Host-based multiradio modules with Wi-Fi and Bluetooth
ODIN-W2 series
Stand-alone IoT gateway modules with Wi-Fi and Bluetooth
  • WLAN dual‑band
  • Variants available with interface SPI or UART
  • Support for IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and IEEE 802.11n standards

Product variants

CB-OWL253I-04

WLAN Dual-band SPI Module w/ solder pins, host-based, internal antenna

CB-OWL253X-04

WLAN Dual-band SPI Module w/ solder pins, host-based, U.FL for antenna

CB-OWS451I-04

WLAN UART Serial Port Module, internal antenna

CB-OWS451X-04

WLAN UART Serial Port Module, U.FL for antenna

Further information

  WLAN Dual‑band
SPI Module
OWL253
WLAN Dual‑band
UART Serial Port Module
OWS451
WLAN version: 802.11 a,b,g,n
(dual band, 65 Mbit/s)
802.11 a,b,g,n
(dual band, 65 Mbit/s)
Antenna range: 400 m (internal or external) 400 m (internal or external)
2.4 GHz channels: 1‑13 1‑13
5 GHz channels: 36‑165
(U‑NII Band 1, 2, 2e, 3)
36‑165
(U‑NII Band 1, 2, 2e, 3)
Interface: SPI UART Logic level
Max baudrate: - 1.5 Mbit/s
Throughput: 20 Mbps 500 kbps
Max slaves: - 7
Security: WPA2, Enterprise WPA2, Enterprise
Driver: Linux, Embedded systems Built‑in
Power supply: 3.3 - 5.5 VDC 3.1 - 5.5 VDC
Connectors: Board‑to‑board Board‑to‑board, JST

Dimensions (mm):

23 x 36 x 3 23 x 36 x 3
Buy starting from
( - )
OWS451x-06
OWL253, OWS451
10 x 14 x 3 mm