The ISM43903-R48-L54-E/U is an embedded 2.4 GHz Wi-Fi module. The Wi-Fi module hardware consists of a Cypress 43903 SOC with ARM Cortex-R4 clocked at 160 MHz (in 1× mode) or up to 320 MHz (in 2× mode), an integrated antenna or optional external antenna, 1 MB of SRAM and 640 KB ROM available for the applications processor, SPI or UART interface capability.
The Wi-Fi module requires no operating system and has an integrated TCP/IP stack that only requires development utilizing the Cypress WICED SDK. The module has a very small 14.5mm x 30mm surface mount footprint and has full FCC and CE module certification.
This product is targeted for low cost embedded wireless applications and enables a quick, easy and cost effective method adding Wi-Fi connectivity to your platforms.
A summary of the key module features
ARM Cortex-R4 clocked at 160 MHz or up to 320 MHz (in 2× mode).
1 MB of SRAM and 640 KB ROM
High-speed 4-wire UART interface with operation up to 4 Mbps.
Two low-speed 2-wire UART interfaces multiplexed on general purpose I/O (GPIO) pins.
On board 2.4 GHz antenna or U.FL Connector option for external
Configurable using AT commands (IWIN)
Host interface: UART
54 Pin Land Grid Array Footprint (Backwards Compatible to L44)
14.5mm x 30mm x 2.5 mm
Low power operation with built-in low power modes.
Fully contained TCP/IP stack thus minimizing host CPU requirements
Network features ICMP ( Ping), ARP, DHCP,TCP, UDP
Secure Wi-Fi authentication WEP-128, WPA-PSK (TKIP), WPA2-PSK
This module can be run using the the Cypress WICED SDK. This module is designed to utilize the high performance CPU core along with RAM/ROM and Flash required by some Cloud vendors.
Power Consumption App Note
The Cypress WICED SDK requires a patch to be installed to use the Inventek modules.
Evaluation Board Detail
- PDA, Pocket PC, computing devices
- Building automation and smart energy control.
- Industrial sensing and remote equipment monitoring.
- Home Kit
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