製品特徴
- Dual-core Cortex™-A7アーキテクチャ採用
- 音声対話に適した低コストソリューションを実現
- 1つのDACチャネルと3つのADCチャネルをサポート
- オーディオ入出力インターフェイスと豊富なマイクアレイを提供
- VAD音声ウェイクアップモジュールは超低消費電力を実現
- 低消費電力設計
機能ブロック
製品仕様
| CPU | Dual-core ARM Cortex™-A7@1.2GHz 32KB L1 I-cache + 32KB L1 D-cache per core 256KB L2 cache |
|---|---|
| Memory | Embedded 64MB DDR2(R328-S2) or 128MB DDR3(R328-S3) Supports SPI Nand/Nor Flash |
| Audio | Embedded with VAD voice wake-up module Supports 1 audio DAC and 3 audio ADC Supports 3 analog audio inputs and 1 analog audio output Up to 3 I2S/PCM controllers for connecting Bluetooth and external audio codec, each I2S/PCM supports maximum 16 channels Integrated digital microphone, supports maximum 8 digital microphones |
| Security Engine | Supports Symmetrical algorithm: AES, DES, 3DES Supports Hash algorithm: MD5, SHA, HMAC Supports Pubic Key algorithm: RSA Supports 160-bit hardware PRNG with 175-bit seed Supports 256-bit hardware TRNG Supports 1K-bit EFUSE for chip ID and security application |
| Connectivity | USB 2.0 OTG SDIO 3.0 LEDC 2 x TWI, 2 x SPI, 4 x UART 8-ch PWM, 4-ch GPADC, 1-ch LRADC |
| WiFi | XR829 or others |
| OS | Linux 4.9 |
| Package | LFBGA 143balls(R328-S2), LFBGA 144balls(R328-S3) 9.25mm x 9.15mm body size,0.65mm ball pitch,0.35mm ball size(R328-S2) 9.15mm x 11.1mm body size,0.65mm ball pitch,0.35mm ball size(R328-S3) |
| Process | 28nm HPC |
