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CYW43455
  • CYW43455

CYW43455

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Infineon’s AIROC™ CYW43455 single-chip combo device features 1x1 dual-band 2.4 GHz and 5 GHz Wi-Fi 5 (802.11ac) and Bluetooth® 5.3. The WLAN operation supports rates of MCS0–MCS9 (up to 256 QAM) in 20 MHz, 40 MHz, and 80 MHz channels for data rates of up to 433.3 Mbps. Included on-chip are 2.4 GHz and 5 GHz transmit amplifiers and receive low-noise amplifiers. Optional external PAs and LNAs are also supported.

Infineon Technologies CYW43455 Product Info

16 April 2026 0

Parameters

Antenna Configuration

1x1

Bluetooth Interface

UART/PCM

Bluetooth Specification

Bluetooth 5.3

Core

Cortex M3

CPU

N/A

Dimensions

4.47 × 5.27 mm

Family

AIROC™ Wi-Fi + Bluetooth® Combos

GPIOs

15

Memory

N/A

Operating system support

Linux, RTOS

Operating Temperature range

-30 °C to 85 °C

Operating Voltage range

3 V to 5.25 V

Package

WLCSP-140

Partner Module

Y

Pitch

0.4 mm

Product Description

Wi-Fi 5 combo

Replacement

CYW4373

ROM

845 KB

SRAM

270 kByte

Wi-Fi Band

2.4GHz, 5GHz

Wi-Fi Bandwidth

80 MHz

WI-FI Interface

SDIO

Wi-Fi Specification

Wi-Fi 5 (802.11ac)

Apps

Consumer electronics, Washing and drying, Home and building automation, Smart thermostat

Features

  • Wi-Fi 5 (802.11ac) Dual-band (2.4/5 GHz)
  • 1x1 SISO
  • 20/40/80 MHz, up to 433Mbps PHY rate
  • Internal PA+LNA w/ External LNA support
  • 2.4-GHz Internal and 5-GHz Ext TR Switch
  • SDIO v3.0 host interface
  • Option for separate BT antenna
  • Host controller interface(HCI)-over-UART
  • WPA2

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