CV181x
RISC-V Vision SoC for Lightweight Intelligent Scenarios
Product Brief
The CV181 series is a high-performance visual processor tailored for the lightweight intelligent (consumer-grade) market. It leverages a Dual RISC-V C906 architecture (1.0GHz + 0.7GHz) or an ARM A53 + RISC-V combination in the 'A' series, providing an optimal balance of compute power and energy efficiency.
Featuring an integrated TPU delivering 0.5 to 1.0 TOPS @ INT8, the CV181 supports advanced AI tasks with BF16 mixed precision. It is optimized for fast boot scenarios and low power operation, making it ideal for battery-powered devices like smart doorbells and cat-eye locks.
The imaging pipeline is powered by a self-developed ISP supporting 3D noise reduction, two-frame wide dynamic range (2f-HDR), and lens distortion correction (LDC). It can handle up to two MIPI/DVP camera inputs and provide output via MIPI DSI, LVDS, or RGB interfaces.
Video processing capabilities include hardware H.265/H.264/MJPEG encoding at resolutions up to 5MP (2880x1620) @ 30FPS. The chip also integrates a 16-bit audio codec and a dedicated MCU subsystem for low-level control and peripheral management.
The CV181 series is designed for seamless integration, offering Pin-to-Pin compatibility within its package types (BGA 10x10 or QFN-88 9x9) and sharing a common SDK and TPU development environment with the CV180 series.
Dual Core Compute
Flexible architecture with pure RISC-V or ARM+RISC-V options to suit different performance and OS requirements.
2f-HDR Imaging
Advanced two-frame wide dynamic range technology ensures clear visibility in challenging backlit or high-contrast environments.
Integrated SiP Memory
Available with 512Mb DDR2 to 4Gbit DDR3 integrated SiP, reducing PCB footprint and BOM complexity.
Multi-Sensor Input
Supports up to 2 camera inputs with flexible interfaces including MIPI CSI, Sub-LVDS, and HiSPi.
Rich Audio/Visual I/O
Integrated 16-bit audio codec and comprehensive display outputs for interactive smart devices.
Eco-System Synergy
Shares SDK, ISP settings, and AI reference designs with the CV180 series for low-cost portfolio development.
System Architecture
AI Performance
The integrated TPU provides specialized acceleration for lightweight neural networks, optimized for common consumer AI tasks.
Benchmarks & Metrics
Imaging Pipeline
Self-developed ISP engine focused on clarity and dynamic range for high-definition consumer vision.
3DNR
Advanced noise reduction for low-light scenes.
2f-HDR
Superior contrast handling in complex lighting.
LDC
Lens distortion correction for wide-angle sensors.
Display Engine
Multi-interface output support (MIPI/LVDS/RGB).
Variant Comparison
| Model | CPU | TPU | DDR SiP | Package |
|---|---|---|---|---|
| CV1813H | Dual C906 | 1.0 TOPS | 4Gbit DDR3 | BGA 10x10 |
| CV1812H | Dual C906 | 1.0 TOPS | 2Gbit DDR3 | BGA 10x10 |
| CV1811H | Dual C906 | 1.0 TOPS | 1Gbit DDR3 | BGA 10x10 |
| CV1812C-P | Dual C906 | 1.0 TOPS | 2Gbit DDR3 | QFN-88 9x9 |
| CV1811C | Dual C906 | 0.5 TOPS | 1Gbit DDR3 | QFN-88 9x9 |
| CV1810C | Dual C906 | 0.5 TOPS | 512Mb DDR2 | QFN-88 9x9 |
| CV1813H-A | A53+C906 | 1.0 TOPS | 4Gbit DDR3 | BGA 10x10 |
| CV1812H-A | A53+C906 | 1.0 TOPS | 2Gbit DDR3 | BGA 10x10 |
| CV1811H-A | A53+C906 | 1.0 TOPS | 1Gbit DDR3 | BGA 10x10 |
| CV1812C-PA | A53+C906 | 1.0 TOPS | 2Gbit DDR3 | QFN-88 9x9 |
| CV1811C-A | A53+C906 | 1.0 TOPS | 1Gbit DDR3 | QFN-88 9x9 |
Commercial Deployment Scenarios
Home IPC
Smart Doorbell
Cat-eye Door Lock
Streaming Rearview Mirror
Access Control
Dash Cam
Datasheet
| Processor | |
| CPU | Dual C906 1.0GHz + 0.7GHz (or ARM A53+C906) |
| AI | |
| TPU | 0.5 ~ 1.0 TOPS @ INT8 / BF16 |
| Video | |
| Encoding | H.265/H.264/MJPEG (Max 5MP@30) |
| ISP | 3DNR, 2f-HDR, LDC, Dehaze |
| Interface | |
| Video In | 2x (MIPI 2L+2L+DVP or 4L) |
| Video Out | MIPI DSI (4L/2L), LVDS, RGB, BT.656/1120 |
| Memory | |
| SiP DDR | 512Mb DDR2 / 1Gbit / 2Gbit / 4Gbit DDR3 |
| Storage | |
| Interface | eMMC, SPI NOR/NAND, SDIO 3.0 x2 |
| Ethernet | |
| MAC/PHY | 10/100 MAC PHY (RMII Supported) |
| Peripherals | |
| I/O | USB 2.0, I2C x5, SPI x3, UART x4, PWM x15 |
| Audio | |
| Codec | 16-bit Codec (ADC/DAC/I2S) |
| System | |
| Boot | Fast Boot / Secure Boot |