Product Descriptions
VC-01 is a low-cost pure offline speech recognition module that uses the US516P6 speech chip launched by Yunzhisheng.
The US516P6 chip adopts a 32-bit RSIC architecture core and incorporates a DSP instruction set specifically designed for signal processing and speech recognition, an FPU operation unit that supports floating-point operations, and an FFT accelerator. Supports 1 analog Mic input, SNR≥94db; Support 4-channel digital Mic input; Supports dual channel DAC output; Supports 12Sinput/output.
VC-01 module size: 25.5 * 24 * 3.2+(0.2) mm, packaged as SMD-24, supports offline recognition of 150 local instructions, supports lightweight RTOS systems, supports multiple interfaces such as UART/SPI/I2C/ADC/PWM/GPI0, and simple and user-friendly customization tools. Built in 242KB high-speed SRAM, 2MBFLASH; Supports power input in the range of 3.6V-5V, with built-in 5V to 3.3V and 3.3V to 1.2V LDO for chip power supply.
We continuously optimize and innovate algorithms in speech recognition technology, deeply integrating offline recognition algorithms with chip architecture to provide customers with ultra-low cost offline speech recognition solutions. These solutions can be widely and quickly applied to smart homes, various smart small appliances, 86 boxes, toys, lighting fixtures, and other products that require voice control.
Product Specifications
| 模组型号 Module model | VC-01 |
| 模组封装 Module packaging | SMD-24 |
| 尺寸(mm) Size(mm) | 25.5*24*3.2(±0.2)MM |
| 工作环境 Work environment | -40℃ ~85℃ |
| 存储环境 Storage environment | -40℃~125°C,<90%RH |
| 供电范围 Power supply range | 供电电压 3.6V~5V，供电电流 >500mA Supply voltage 3.6V~5V, supply current>500mA |
| 支持接口 Support interfaces | UART/I2C/PWM/SPI/GPIO |
| 可用IO口数量 Number of available IO ports | 12 |
| 串口速率 Series Rate | Defaults to 115200bps |
| SPI Flash | 2MB (built-in) |
Product Pin definition
| 脚序 Foot sequence | 名称 Name | 功能说明 Function Description |
| 1 | VCC | 3.6-5V电源输入 |
| 2 | GND | GND |
| 3 | TX1 | GPIO_B6/UART1_TXD，3.3V level |
| 4 | RX1 | GPIO_B7/UART1_RXD，3.3V level |
| 5 | IOB8 | IO/virtual Software UART-TX(Log Output pins) |
| 6 | IOA27 | IO/US_SPIM_MOSI |
| 7 | 3V3 | 数字 3.3V 电源输出 Digital 3.3V power output |
| 8 | GND | GND |
| 9 | SCL_3.3 | 3.3V 电平 I2C 通信口,与 5V 电平 I2C 通信口不可同时使用 3.3V level I2C communication port cannot be used simultaneously with 5V level I2C communication port |
| 10 | SDA_3.3 | |
| 11 | SCL_5V | 5V 电平 I2C 通信口,与 3.3V 电平 I2C 通信口不可同时使用 5V level I2C communication port cannot be used simultaneously with 3.3V level I2C communication port |
| 12 | SDA_5V | |
| 13 | IOA25 | IO/ADC4/SPI_MISO |
| 14 | NC | 悬空 Floating |
| 15 | IOB0 | IO/UART1_TXD/I2C_SCL/TIM3_PWM |
| 16 | IOB1 | IO/UART1_RXD/I2C_SDA/TIM4_PWM |
| 17 | NC | 悬空 Floating |
| 18 | MIC- | MIC-Input |
| 19 | MIC+ | MIC+Input |
| 20 | IOA26 | IO/ADC5/SPI_CLK |
| 21 | DAC_L | 预留音频L声道输出，暂不支持该功能 Reserved audio L-channel output, currently not supported |
| 22 | DAC_R | 预留音频R声道输出，暂不支持该功能 Reserved audio R-channel output, currently not supported |
| 23 | SPK- | SPK-8Ω2W |
| 24 | SPK+ | SPK+8Ω2W |
Product Size
Product Show
Payment&Transportation
Official Certificate&Certificate
Multiple product supply
Company office environment
Warehouse Real Shot
Standard packaging
We also provide ：
| Part No | Manufacturer | Date Code | Quantity | Description |
| LM22676ADJ | NS | 19+ | 250 | SOP8 |
| TPS562201DDCR | TI | 22+ | 795500 | SOT23-6 |
| NJG1806K75 | JRC | 22+ | 500000 | DFN6 |
| TLV74318PDQNR | TI | 22+ | 402000 | X2SON-4 |
| NJG1801K75 | JRC | 22+ | 300000 | SMD |
| NJG1804K64 | JRC | 22+ | 300000 | DFN8 |
| LM27761DSGR | TI | 22+ | 151000 | WSON8 |
| TLV62565DBVR | TI | 22+ | 138000 | SOT23-5 |
| TPS613222ADBVR | TI | 22+ | 108000 | SOT23-5 |
| LNK625DG-TL | POWER | 22+ | 100000 | SOP-8 |
| OPA4322AIPWR | TI | 22+ | 100000 | TSSOP14 |
| TLV75528PDRVR | TI | 22+ | 99000 | WSON-6 |
| TPS7A2025PDQNR | TI | 22+ | 78500 | X2SON-4 |
| TLV62568DBVR | TI | 22+ | 72000 | SOT23-5 |
| STM32L051K8U6TR | ST | 22+ | 60000 | QFN32 |
| SKY66421-11 | SKYWORKS | 22+ | 56500 | QFN16 |
| TPS7A1111PDRVR | TI | 22+ | 54000 | WSON6 |
| TLV62569PDDCR | TI | 22+ | 52000 | SOT23-6 |
| TLV62569DBVR | TI | 22+ | 48000 | SOT23-5 |
| TPS23753APWR | TI | 22+ | 40000 | TSSOP14 |
| NB691GG-Z | MPS | 22+ | 30000 | QFN |
| SN74AHC1G02DBVR | TI | 22+ | 27939 | SOT-23 |
| TPS63000DRCR | TI | 22+ | 23238 | VSON10 |
| TLV75533PDRVR | TI | 22+ | 21500 | WSON6 |
| NB687BGQ-Z | MPS | 22+ | 20000 | QFN |
| A3916GESTR-T-1 | ALLEGRO | 22+ | 17150 | QFN-20 |
| TPS62135RGXR | TI | 22+ | 15000 | VQFN11 |
| TLE2022AMDR | TI | 0803+ | 12500 | SOP8 |
| TPS23756PWPR | TI | 22+ | 12000 | HTSSOP-20 |
