NRF51822 - Buy Online in India

Package Includes:

1 x NRF51822

Specifications

Specifications:

Frequency band

Specifications:

2.4GHz ISM ( 2.40000 – 2.4835GHz)

Specifications:

On-air data rate

Specifications:

250 kbps, 1 Mbps or 2 Mbps

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Modulation

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GFSK

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Output power

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Programmable: +4 to -20dBm in 4dB steps

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Sensitivity

Specifications:

-92.5dBm Bluetooth low energy -96dBm at 250kb -90dBm at 1Mbs -85dBm at 2Mbs

Specifications:

Radio current consumption LDO at 1.8V

Specifications:

16mA – TX at +4dBM output power 10.5mA – TX at 0dBm output power 13mA – RX at 1Mbs

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Radio current consumption DC-DC at 3V

Specifications:

10.5mA – TX at +4dBm output power

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8.1mA – TX at 0dBm output power

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9.5mA – RX at 1Mbs

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Microcontroller

Specifications:

32-bit ARM Cortex M0

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Program Memory

Specifications:

256kB Flash

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RAM

Specifications:

16kB

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Oscillators

Specifications:

16MHz crystal oscillator

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16MHz RC oscillator

Specifications:

32kHz crystal oscillator 32kHz RC oscillator (±250 ppm)

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System current consumption

Specifications:

420nA – No RAM retention 530nA - 8k RAM retention 2?A – All peripherals in IDLE mode

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Hardware Security

Specifications:

128-bit AES ECB/CCM/AAR co-processor

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GPIO

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31 configurable

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Digital I/O

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X2 Hardware SPI master 2X 2-wire master UART Quadrature demodulator

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Peripherals

Specifications:

10-bit ADC RNG Temperature sensor RTC

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PPI

Specifications:

16-channel

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Voltage regulator

Specifications:

LDO (1.8 to 3.6V), LDO bypass (1.75 to 1.95V) Buck DC/DC (2.1 to 3.6V)

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Timers/counters

Specifications:

2 x 16 bit, 1 x 24bit, 2 x 24bit, RTC

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Package options

Specifications:

RoHS compliant 48-pin 6x6 QFN

1. What is nRF51822?

The nRF51822 is a versatile System on Chip (SoC) engineered for Bluetooth Low Energy and 2.4 GHz proprietary wireless applications, offering ultra-low power consumption. It integrates a 32-bit ARM Cortex-M0 CPU, 256/128 KB flash, and 32/16 KB RAM. This single-chip solution is an effective multi-protocol solution for ULP wireless applications.

2. What is the difference between nRF51802 and nRF51822?

The nRF51802 is a cost-effective alternative to the nRF51822, with comparable features but slightly reduced performance, including 2 dB less RX sensitivity and marginally higher RX and TX peak currents. The nRF51822 is an established chip in its third edition, while the nRF51802 is a lower-cost variant with a weaker radio and higher current consumption. Both chips are multiprotocol SoCs developed for Bluetooth Low Energy applications.

Shipping Policy

• All orders confirmed before 3:00 PM IST are shipped the same day, barring rare pickup delays on holidays or disturbances.
• Delivery time in Metro cities is 1–3 days; for other locations, it is 3–7 days. Delivery varies based on location and courier service.

Return & Refund Policy

• Return window: 7 days from receipt unless stated otherwise.
• No refunds or replacements after the return window.
• Returns are accepted only for non-working or damaged products.
• Initiate return requests via a Support ticket or contact us at +91-8123057137.
• Refunds are processed within 3–4 working days after inspection and approval.