Ringkasan
4 GHz ultra-low power yang mengintegrasikan transceiver nRF51 series, CPU ARM Cortex-M0 32 bit, flash memory, serta peripheral analog dan digital. 4 GHz proprietary seperti Gazell dari Nordic Semiconductor. Stack Bluetooth low energy yang fully qualified diimplementasikan dalam S100 series SoftDevices yang tersedia gratis dan dapat diunduh serta dipasang secara independen dari kode aplikasi pengguna.
6 V dan konsumsi daya rendah, chip ini cocok untuk perangkat portabel dan wearable. 2 μs menggunakan 16 MHz RCOSC. Tersedia dalam beberapa varian paket QFN48 dan WLCSP dengan ukuran berbeda, serta mendukung berbagai peripheral seperti ADC, timer, SPI, I2C, UART, dan enkripsi AES hardware.
Aplikasi umum meliputi peripheral komputer, perangkat entertaiment interaktif, beacon, sensor kesehatan/kebugaran, perangkat medis, key-fob, jam tangan, dan mainan remote control.
Fitur utama
- Transceiver 2.4 GHz dengan sensitivitas -93 dBm dalam mode Bluetooth low energy
- Mendukung data rate 250 kbps, 1 Mbps, dan 2 Mbps
- CPU ARM Cortex-M0 32 bit dengan konsumsi 275 μA/MHz dari flash dan 150 μA/MHz dari RAM
- Memori flash 256 kB atau 128 kB dan RAM 16 kB atau 32 kB
- Rentang tegangan suplai 1.8 V hingga 3.6 V
- 31 pin General Purpose I/O
- ADC 8/9/10 bit dengan 8 kanal konfigurabel
- AES HW encryption dan Serial Wire Debug (SWD)
Spesifikasi utama
| Parameter | Nilai | Kondisi |
|---|---|---|
| Sensitivitas receiver | -93 dBm | Bluetooth low energy modehlm. 1 |
| Daya transmit | -20 hingga +4 dBm | dalam langkah 4 dBhlm. 1 |
| Arus peak RX | 13 mA | tanpa DC/DChlm. 1 |
| Arus peak TX | 10.5 mA | 0 dBm, tanpa DC/DChlm. 1 |
| Arus peak RX dengan DC/DC | 9.7 mA | DC/DC enabledhlm. 1 |
| Arus peak TX dengan DC/DC | 8 mA | 0 dBm, DC/DC enabledhlm. 1 |
| Rentang tegangan suplai | 1.8 hingga 3.6 V | hlm. 1 |
| Arus mode OFF | 0.6 μA | pada 3 Vhlm. 1 |
| Arus mode OFF dengan retensi RAM 1 region | 1.2 μA | pada 3 Vhlm. 1 |
| Arus mode ON semua blok IDLE | 2.6 μA | pada 3 Vhlm. 1 |
| Waktu wake-up | 4.2 μs | menggunakan 16 MHz RCOSChlm. 1 |
| Konsumsi CPU dari flash | 275 μA/MHz | running from flash memoryhlm. 1 |
Nilai diambil dari datasheet; “hlm.” menunjuk halaman datasheet tempat angka itu tertulis.
Pinout nRF51822-QFAA-R
QFN48 30 pin
| Pin | Nama | Fungsi |
|---|---|---|
| 1 | VDD | Power supplyhlm. 12 |
| 2 | DCC | DC/DC output voltage to external LC filterhlm. 12 |
| 3 | P0.30 | General purpose I/O pinhlm. 12 |
| 4 | P0.00AREF0 | General purpose I/O pin; ADC/LPCOMP reference input 0hlm. 12 |
| 5 | P0.01AIN2 | General purpose I/O pin; ADC/LPCOMP input 2hlm. 12 |
| 6 | P0.02AIN3 | General purpose I/O pin; ADC/LPCOMP input 3hlm. 12 |
| 7 | P0.03AIN4 | General purpose I/O pin; ADC/LPCOMP input 4hlm. 12 |
| 8 | P0.04AIN5 | General purpose I/O pin; ADC/LPCOMP input 5hlm. 12 |
| 9 | P0.05AIN6 | General purpose I/O pin; ADC/LPCOMP input 6hlm. 12 |
| 10 | P0.06AIN7AREF1 | General purpose I/O pin; ADC/LPCOMP input 7; ADC/LPCOMP reference input 1hlm. 12 |
| 11 | P0.07 | General purpose I/O pinhlm. 12 |
| 12 | VDD | Power supplyhlm. 12 |
| 13 | VSS | Ground (0 V)hlm. 12 |
| 14-22 | P0.08 to P0.16 | General purpose I/O pinhlm. 12 |
| 23 | SWDIO/nRESET | System reset (active low); hardware debug and flash programming I/Ohlm. 12 |
| 24 | SWDCLK | Hardware debug and flash programming I/Ohlm. 12 |
| 25-28 | P0.17 to P0.20 | General purpose I/O pinhlm. 12 |
| 29 | DEC2 | Power supply decouplinghlm. 12 |
| 30 | VDD_PA | Power supply output (+1.6 V) for on-chip RF power amphlm. 12 |
| 31 | ANT1 | Differential antenna connection (TX and RX)hlm. 12 |
| 32 | ANT2 | Differential antenna connection (TX and RX)hlm. 12 |
| 33, 34 | VSS | Ground (0 V)hlm. 12 |
| 35, 36 | AVDD | Analog power supply (Radio)hlm. 12 |
| 37 | XC1 | Connection for 16/32 MHz crystal or external 16 MHz clock referencehlm. 12 |
| 38 | XC2 | Connection for 16/32 MHz crystalhlm. 12 |
| 39 | DEC1 | Power supply decouplinghlm. 12 |
| 40-44 | P0.21 to P0.25 | General purpose I/O pinhlm. 13 |
| 45 | P0.26AIN0XL2 | General purpose I/O pin; ADC/LPCOMP input 0; connection for 32.768 kHz crystalhlm. 13 |
| 46 | P0.27AIN1XL1 | General purpose I/O pin; ADC/LPCOMP input 1; connection for 32.768 kHz crystal or external 32.768 kHz clock referencehlm. 13 |
| 47, 48 | P0.28 and P0.29 | General purpose I/O pinhlm. 13 |
CDAB WLCSP 56 pin
| Pin | Nama | Fungsi |
|---|---|---|
| A1 | AVDD | Analog power supply (Radio)hlm. 14 |
| A2 | XC1 | Crystal connection for 16/32 MHz crystal oscillator or external 16/32 MHz crystal referencehlm. 14 |
| A3 | XC2 | Crystal connection for 16/32 MHz crystalhlm. 14 |
| A4 | DEC1 | Power supply decouplinghlm. 14 |
| A5 | P0.21 | General purpose I/Ohlm. 14 |
| A6 | P0.24 | General purpose I/Ohlm. 14 |
| A7 | P0.26AIN0XL2 | General purpose I/O; ADC input 0; crystal connection for 32.768 kHz crystal oscillatorhlm. 14 |
| A8 | P0.27AIN1XL1 | General purpose I/O; ADC input 1; crystal connection for 32.768 kHz crystal oscillator or external 32.768 kHz crystal referencehlm. 14 |
| B1 | VSS | Ground (0 V)hlm. 14 |
| B4 | VSS | Ground (0 V)hlm. 14 |
| B5 | P0.22 | General purpose I/Ohlm. 14 |
| B6 | P0.23 | General purpose I/Ohlm. 14 |
| B7 | P0.28 | General purpose I/Ohlm. 14 |
| B8 | VDD | Power supplyhlm. 14 |
| B9 | DCC | DC/DC output voltage to external LC filterhlm. 14 |
| C1 | ANT2 | Differential antenna connection (TX and RX)hlm. 14 |
| C5 | P0.25 | General purpose I/Ohlm. 14 |
| C6 | N.C. | No Connection; must be soldered to PCBhlm. 14 |
| C7 | P0.29 | General purpose I/Ohlm. 14 |
| C8 | P0.30 | General purpose I/Ohlm. 14 |
| C9 | P0.00AREF0 | General purpose I/O; ADC Reference voltagehlm. 14 |
| D1 | ANT1 | Differential antenna connection (TX and RX)hlm. 14 |
| D7 | VSS | Ground (0 V)hlm. 14 |
| D8 | P0.31 | General purpose I/Ohlm. 14 |
| D9 | P0.02AIN3 | General purpose I/O; ADC input 3hlm. 14 |
| E1 | VDD_PA | Power supply output (+1.6 V) for on-chip RF power amphlm. 14 |
| E2 | N.C. | No Connection; must be soldered to PCBhlm. 14 |
| E3 | N.C. | No Connection; must be soldered to PCBhlm. 14 |
| E7 | P0.01AIN2 | General purpose I/O; ADC input 2hlm. 14 |
| E8 | P0.04AIN5 | General purpose I/O; ADC input 5hlm. 14 |
| E9 | P0.03AIN4 | General purpose I/O; ADC input 4hlm. 15 |
| F1 | DEC2 | Power supply decouplinghlm. 15 |
| F2 | P0.19 | General purpose I/Ohlm. 15 |
| F3 | P0.18 | General purpose I/Ohlm. 15 |
| F4 | VSS | Ground (0 V)hlm. 15 |
| F5 | N.C. | No Connection; must be soldered to PCBhlm. 15 |
| F6 | VSS | Ground (0 V)hlm. 15 |
| F7 | N.C. | No Connection; must be soldered to PCBhlm. 15 |
| F8 | P0.06AIN7AREF1 | General purpose I/O; ADC input 7; ADC Reference voltagehlm. 15 |
| F9 | VSS | Ground (0 V)hlm. 15 |
| G1 | P0.20 | General purpose I/Ohlm. 15 |
| G2 | SWDCLK | Hardware debug and flash programming I/Ohlm. 15 |
| G3 | P0.17 | General purpose I/Ohlm. 15 |
| G4 | P0.14 | General purpose I/Ohlm. 15 |
| G5 | P0.13 | General purpose I/Ohlm. 15 |
| G6 | P0.10 | General purpose I/Ohlm. 15 |
| G7 | P0.07 | General purpose I/Ohlm. 15 |
| G8 | VDD | Power supplyhlm. 15 |
| G9 | P0.05AIN6 | General purpose I/O; ADC input 6hlm. 15 |
| H2 | nRESETSWDIO | System reset (active low); hardware debug and flash programming I/Ohlm. 15 |
| H3 | P0.16 | General purpose I/Ohlm. 15 |
| H4 | P0.15 | General purpose I/Ohlm. 15 |
| H5 | P0.12 | General purpose I/Ohlm. 15 |
| H6 | P0.11 | General purpose I/Ohlm. 15 |
| H7 | P0.09 | General purpose I/Ohlm. 15 |
| H8 | P0.08 | General purpose I/Ohlm. 15 |
Catatan desain PCB
- Untuk menghemat daya, aktifkan DC/DC converter karena konsumsi arus peak RX dan TX menjadi lebih rendah (9.7 mA RX, 8 mA TX pada 0 dBm) dibanding tanpa DC/DC (13 mA RX, 10.5 mA TX).hlm. 1
- Manfaatkan mode OFF dengan retensi RAM 1 region yang hanya menarik arus 1.2 μA pada 3 V, cocok untuk aplikasi yang membutuhkan penyimpanan data sementara saat tidur.hlm. 1
- Gunakan 16 MHz RCOSC untuk bangun dari mode tidur dengan cepat, hanya 4.2 μs, sehingga respons sistem terhadap event eksternal menjadi lebih gesit.hlm. 1
- Saat merancang PCB dengan paket QFN48, pastikan exposed die pad di bagian tengah terhubung ke ground untuk operasi perangkat yang benar.hlm. 13
- Untuk paket WLCSP, perhatikan pin N.C. (no connection) yang tetap harus disolder ke PCB, seperti tertulis pada tabel ball functions.hlm. 14
Contoh pemakaian
- Peripheral komputer dan perangkat I/O (mouse, keyboard, multi-touch trackpad)
- Perangkat hiburan interaktif (remote control, gaming controller)
- Beacon
- Personal Area Networks
- Perangkat sensor dan monitor kesehatan/kebugaran
- Perangkat medis
- Key-fob dan jam tangan
- Mainan remote control
Sumber data
Disusun dari datasheet resmi Nordic Semiconductor (buka PDF). Ringkasan ditulis dengan bantuan AI, lalu setiap angka dan nama pin dicocokkan otomatis ke teks datasheet; yang tidak ditemukan di datasheet dibuang. Terakhir diperiksa 20 Oktober 2026. Untuk desain akhir, tetap rujuk datasheet asli.