Renesas Dialog DA14531 Bluetooth Low Energy 5.1 module RC14531A

The RC14531A is a powerful, ultra small size, cost-effective, low-power Bluetooth low energy module based on the DA14531 SoC from Dialog (now Renesas). With an ARM^® Cortex™-M0+, embedded with a 2.4 GHz transceiver, and integrated antenna, the RC14531A provides a complete RF solution with no additional RF design, allowing faster time-to-market. The RC14531A makes full use of the functions and peripheral devices of the DA14531 to provide protection for applications that require small size and power consumption, while simplifying the design and reducing BOM costs.
Chipset: DA14531
Bluetooth Version: Bluetooth 5.1 Low Energy
Supply voltage range 1.7 V ~ 3.6 V
Memory
- 32 KB OTP
- 48 kB RAM
6 GPIOs
Size: 6 x6 x 1.6 mm
Antenna: Antenna Pin
Transmit Power: -19.5 dBm ~ +2.5 dBm
Receiving Sensitivity: -94 dBm

Key Features

Compatible with Bluetooth^®1, ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US) and ARIB STD-T66 (Japan)

Supports up to three Bluetooth® LE connections
Typical cold boot to radio active 35 ms
Processing power
- 16 MHz 32-bit Arm^®Cortex-M0+ with SWD interface
- 18300 EEMBC IoTMark-BLE^®score
- Dedicated Link Layer and AES-128 Encryption Processor
- Software-based True Random Number Generator (TRNG)
Memories
- 32 kB One-Time-Programmable (OTP)
- 48 kB Retainable System RAM
- 144 kB ROM
Power management
- Integrated Buck/Boost DCDC converter
- Buck: 1.8 V ≤ VBAT_HIGH ≤ 3.6 V
- Boost: 1.1 V ≤ VBAT_LOW ≤ 1.65 V
- Clock-less hibernation mode: Buck 270 nA, Boost 240 nA
- Built-in temperature sensor for die temperature monitoring
Clocks
- 32 MHz crystal and 32 MHz RC osc.
- 32 kHz crystal and 32/512 kHz RC osc.
- 15 kHz RCX as crystal replacement
Programmable Reset Circuitry
2× General purpose Timers with capture and PWM capabilities
Digital interfaces
- GPIOs: 6
- 2xUARTs (one with flow control)
- SPI Master/Slave up to 32 MHz (Master)
- I²C bus at 100 kHz and 400 kHz
- 3-axis capable Quadrature Decoder
- Keyboard controller
Analog interfaces
- 4-channel 10-bit ADC
Radio transceiver
- Fully integrated 2.4 GHz CMOS transceiver
- Single wire antenna
- TX: 3.5 mA, RX: 2.2 mA (system currents with DC-DC, VBAT_HIGH =3 V and 0 dBm)
- Programmable transmit output power from
- -19.5 dBm to +2.5 dBm
- -94 dBm receiver sensitivity