Low Cost Ultra Low Power RF Crazy RC3526 BLE 5.3 module RC3526A

The RC3526A is a powerful, compact size, cost-effective, ultra low power Bluetooth low energy (BLE 5.3) module based on the RC3526 SoC from RF Crazy. With an ARM^® Cortex™-M4, embedded with a 2.4 GHz transceiver, and integrated antenna, the RC3526A provides a complete RF solution with no additional RF design, allowing faster time-to-market.
Providing rich peripheral IOs, including 8 channels DMA, 2 UART interfaces, 1 I²S interface, 25 GPIOs, 2 SPI master or slave interfaces, 1 I²C master interface, 3 16-bit timers, etc.
The RC3526A can power most applications, simplifying designs and reducing BOM costs.
The RC3526A supports BLE 5.3 and is preprogrammed with easy-to-use transparent transmission firmware with AT commands.
Antenna: PCB Antenna.
Flash: 1 MB
SRAM: 80 KB
Size: 15.1 x 11.2 x 1.5 mm.
Transmit Power: -30.0 ~ +10.0 dBm.
Receiving Sensitivity: -99 ~ -96 dBm.
Power Consumption
- 7 mA peak current in RX
- 9 mA peak current in TX (0 dBm)
- 2.4 uA current in sleep mode

Chipset	RC3526
Supply Power Voltage	1.6 V ~ 3.6 V, recommended to 3.3 V
Modulation	GFSK
Frequency	2402 MHz ~ 2480.0 MHz
Chanel Number	39 (channel spacing of 2 MHz)
Transmit Power	-30.0 dBm ~ +10.0 dBm
Receiving Sensitivity	-99 ~ -96 dBm
GPIO	13
Crystal	32 MHz
ROM	48 KB
SRAM	80 KB
Flash	1 MB
Package	SMT Packaging
Frequency Error	±20 kHz
Dimension	15.1 mm x 11.2 mm x (1.50 ± 0.1) mm
Type of Antenna	PCB Antenna
Operating Temperature	-40 °C ～ +85 °C
Storage Temperature	-55 °C ～ +125 °C
Hibernation Current	2.4 µA (Test software RC6621C-test.hex)
The current of the Broadcast Event	11.19 µA (Broadcast interval: 1000 ms @ 0 dBm)
The current of Connection Event	0.35 mA (Connection interval: 20 ms @ 0 dBm)

Key Features