DA14531-00000FX2

Part: DA14531 (DA14531-00000FX2) — Dialog Semiconductor / Renesas

Type: Bluetooth 5.1 Low Energy SoC (Arm Cortex-M0+ with 2.4 GHz transceiver)

Description: Ultra-low-power Bluetooth LE 5.1 SoC with a 16 MHz Arm Cortex-M0+, 48 kB RAM, 32 kB OTP, integrated buck/boost DC-DC, and TX 3.5 mA / RX 2.2 mA system current.

Operating Conditions:

• Supply voltage: buck VBAT_HIGH 1.8–3.6 V; boost VBAT_LOW 1.1–1.6 V; bypass VBAT 1.1–3.3 V (minimum boot voltage 1.8 V)
• Operating temperature: -40 to 85 °C (ambient)
• OTP programming: 2.25–3.6 V, -40 to 85 °C; OTP read: 1.62–3.6 V

Absolute Maximum Ratings:

• Max supply voltage (VBAT limiting, buck and boost configurations): 3.6 V (min -0.2 V)
• Max voltage on a pin: 3.6 V (min -0.2 V)
• ESD HBM: 4 kV (FCGQFN24; RFIO pins up to 2.5 kV), 2 kV (WLCSP17)
• ESD CDM: 500 V
• Storage temperature: -50 to 150 °C

Key Specs:

• CPU: 16 MHz 32-bit Arm Cortex-M0+, EEMBC IoTMark-BLE score 18300
• Memory: 32 kB OTP, 48 kB retainable RAM, 144 kB ROM
• Radio: TX 3.5 mA, RX 2.2 mA (with DC-DC, VBAT_HIGH = 3 V, 0 dBm)
• TX output power: -19.5 to +2.5 dBm
• Receiver sensitivity: -94 dBm
• Hibernation current: 270 nA (buck), 240 nA (boost)
• ADC: 4-channel 10-bit
• Cold boot to radio active: 35 ms typical

Features:

• Bluetooth LE 5.1 compliant, up to three connections
• Integrated buck/boost DC-DC converter
• Dedicated Link Layer and AES-128 encryption processor
• 32 MHz crystal and RC oscillators, 32 kHz crystal and RC oscillators, 15 kHz RCX
• 2× UART, SPI (up to 32 MHz master), I2C (100/400 kHz), quadrature decoder, keyboard controller
• 2× general-purpose timers with capture and PWM
• Built-in die temperature sensor
• GPIOs: 6 (WLCSP17), 12 (FCGQFN24)

Applications:

• Medical applications
• Disposables
• Beacons, proximity tags and trackers
• Wireless sensor nodes, fitness trackers
• Smartwatches
• HID devices (stylus, keyboards, mice, trackpads)
• Toys
• Industrial appliances

Package:

• WLCSP17: 17 balls, 1.7 × 2.05 mm, 0.5 mm pitch
• FCGQFN24: 24 pins, 2.2 × 3 mm, 0.4 mm pitch

• ■ Compatible with Bluetooth ® v5.1, 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

• ■ Medical applications
• ■ Disposables
• ■ Beacons
• ■ Proximity tags and trackers
• ■ Wireless sensor nodes
• □ Fitness trackers
• □ Consumer health
• ■ Smartwatches
• ■ Human interface devices (HID)
• □ Stylus pens
• □ Keyboards
• □ Mouse devices
• □ Trackpads
• ■ Toys
• ■ Industrial appliances

The Programmable Pin Assignment (PPA) provides a multiplexing function to the I/O pins of on-chip peripherals. Any peripheral input or output signal can be freely mapped to any I/O port bit by setting Pxy_MODE_REG[4-0]:

0x00 to 0x1F: Peripheral IO ID (PID)

Refer to the registers of Px_MODE_REG (x = 00, 01, 02, to 11) for an overview of the available PIDs. The analog ADC has a fixed pin assignment so that the interference with the digital domain is limited. The SWD interface (JTAG) is mapped on P0_5 (or P0_1 or P0_10, see chapter 2 Pinout) for the SWDIO and on P0_2 for the SWCLK.

Datasheet Revision 3.5

04-Mar-2022

Final

Final

Note 1

IBAT_HIGH is Buck configuration at VBAT = 3 V, at 25 °C

Note 2 IBAT_LOW is Boost configuration at VBAT = 1.5 V, at 25 °C

Final

Final

Final

Figure 85: WLCSP17 Package Outline Drawing

Datasheet Revision 3.5

Final

Figure 86: FCGQFN24 Package Outline Drawing

Revision 3.5

Final