A733
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A733
The Allwinner A733 is built on a 12nm process and features a dual-core ARM Cortex-A76 combined with a hexa-core ARM Cortex-A55 using the big.LITTLE architecture, designed for high-end tablets and Arm-based PCs. It features powerful CPU clusters, AI acceleration, and comprehensive multimedia capabilities.
Overview
- CPU: 2x Cortex-A76 + 6x Cortex-A55, up to 2.0GHz (DynamIQ big.LITTLE)
- RISC-V: 1x E902 core, up to 200MHz
- GPU: Imagination BXM-4-64 MC1
- NPU: 3 TOPS (not available on all SKUs)
- Memory: LPDDR4/4x/5, 32-bit bus, up to 16GB
- Video Decode: H.265/VP9/AVS2 up to 8K@24fps, H.264 up to 4K@30fps
- Video Encode: H.265/H.264 up to 4K@30fps, MJPEG up to 4K@15fps
- Display Output: HDMI 2.0b, eDP1.4b, LVDS, MIPI-DSI, RGB
- Display Input: 3x MIPI CSI, 2x Parallel CSI
- Audio: 5x I2S, 1x DMIC (8-ch), 1x OWA
- Peripheral I/O:
- PCIe 3.0 (1 lane, RC/EP)
- USB 3.1 Gen2 DRD + USB 2.0 Host + USB 2.0 DRD
- GMAC with PTP (IEEE 1588)
- 5x SPI, 9x UART, 16x TWI, SDIO3.0, eMMC 5.1, UFS 3.0
- ADC, PWM, IR, LEDC, etc.
- Security: AES, RSA, ECC, secure boot, TrustZone support
- Package: ED-FCCSP, 15mm x 15mm, 570 balls
Variants
Model | NPU | HDMI | BK Channels | Notes |
---|---|---|---|---|
A733MX-HN3 | Yes | Yes | 6 | Full-featured SKU |
A733MX-N3X | Yes | No | 6 | No HDMI |
A733MX-1XX | No | No | 4 | No NPU or HDMI |
Features
CPU
- Dual-core Cortex-A76 and hexa-core Cortex-A55 (DynamIQ cluster)
- Shared L3 cache: 1MB
- 1x RISC-V E902 microcontroller
GPU
- Imagination BXM-4-64 MC1
NPU
- 3 TOPS, for AI inference acceleration (not present in A733MX-1XX)
Memory Support
- Up to 16GB LPDDR4/4x/5
- eMMC 5.0/5.1, UFS 3.0, Raw NAND, SPI Flash
Video
- Decode: 8K@24fps (H.265/VP9/AVS2)
- Encode: 4K@30fps (H.265/H.264)
Display
- HDMI 2.0b (up to 4K@60fps)
- eDP1.4b / DisplayPort 1.4
- MIPI-DSI x2 (up to 4K@45fps dual-link)
- RGB, LVDS
- DE, DI, G2D, E-ink support
Camera
- 3x MIPI CSI (4+4+2 lanes, up to 2Gbps/lane)
- 2x Parallel CSI (up to 4x1080P@30fps)
Audio
- 5x I2S
- 1x 8-ch DMIC
- 1x OWA (TX+RX)
I/O
- USB 3.1 Gen2 DRD (combo PHY with PCIe/eDP)
- USB 2.0 DRD + Host
- PCIe 3.0 x1, RC/EP
- GMAC with IEEE 1588 PTP
- 5x SPI, 9x UART, 16x TWI, SDIO, ADC, PWM, IR
Security
- AES/SM4, SHA/SM3, RSA/ECC/SM2
- Secure Boot, TrustZone, DRAM/SRAM/Peripheral isolation
Boot
- Boot ROM supports boot from:
- SD/MMC (SD3.0/eMMC5.1)
- UFS 3.0
- SPI NOR/NAND Flash
- USB for firmware upgrade
- Boot media selection via GPADC/eFuse