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Allwinner A31 Full Processor Specifications

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Generel Characteristics

Designer

Allwinner

Type

A31

Year Released

2013

Function

Multi-core Application Processor

Architecture

Width of Machine Word

32 bit

Supported Instruction Set(s)

ARMv7

Number of processor core(s)

Type of processor core(s)

4x ARM Cortex-A7 MPcore

Buses

Memory Interface(s)

mobile (LP) DDR SDRAM , mobile (LP) DDR2 SDRAM , DDR3L (LV) SDRAM , mobile (LP) DDR3 SDRAM

Max. Clock Frequency of Memory IF

533 MHz

Data Bus Width

32 bit

Number of data bus channels

2 ch

Max. Data Rate

8.53 Gbyte/s

Non-volatile Memory Interface

NAND Flash Interface

DMA Channels

16 ch

Clock Frequencies

Recommended Maximum Clock Frequency

N/A

Cache Memories

L1 Instruction Cache per Core

32 Kbyte I-Cache

L1 Data Cache per Core

32 Kbyte D-Cache

Total L2 Cache

1024 Kbyte L2

Technology and Packaging

Feature Size

40 nm

Semiconductor Technology

CMOS

Pins

609 pins

Graphical Subsystem

Embedded GPU

IMG PowerVR SGX544 GPU

Number of GPU cores

2-core GPU

GPU Clock

355 MHz GPU

Cellular Communication

Supported Cellular Data Links

Satellite Navigation

Supported GPS protocol(s)

Additional Information

Special Features

quad ARM Cortex-A7 Harvard Superscalar processor core, 32 + 32 Kbyte L1 cache per core, 32-bit dual-channel LP-DDR / 32-bit 1066 Mbps LP-DDR2 / LP-DDR3 / DDR3L memory interface, dual-channel NAND FLASH Controller, 16 channel DMA, 355 MHz PowerVR Series5XT SGX544MP2 GPU, ARM Jazelle, ARM TrustZone, OpenGL ES 2.0, OpenCL1.x, DirectX 9.3, 1080p display support, UHD (4K) video decode, 1080p video encode, HDMI 1.4 1080p 60fps, Integrated HI-FI 100dB Audio Codec, ISP, 12 MP camera support, USB 2.0 OTG, USB host, Android 4.2 support, Windows 8 support

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