Data Sheet

ManualsBrandsGoogle ManualsDevelopment ToolsCoral DEV Board Mini 2 GB 4 x 1.5 GHz



Dev Board Mini datasheet 

Version 1

1 



Features 



●

MediaTek 8167s SoC 

○

Quad

core ARM Cortex

A35 

○

Imagination PowerVR GE8300 GPU 

●

Google Edge TPU ML accelerator 

○

4 TOPS peak performance

(

int8

)



○

2 TOPS per watt 

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ARM TrustZone Security 

●

Fi 5

Bluetooth 5

0 

●

8 GB eMMC

2 GB LPDDR3 

●

USB 2

0 Type

C OTG 

●

HDMI 1

(

micro

)



●

MIPI DSI display 

●

MIPI CSI camera 

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5 mm headphone jack 

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Digital PDM microphone 

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54mm 2

pin mono speaker terminal 

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pin GPIO expansion header 

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Mendel Linux

ﬂ

ashed in factory 



Description 

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The Coral Dev Board Mini is a single

board computer that enables you to quickly prototype and deploy an embedded 

system with on

device ML inferencing

This board can also serve as an evaluation device for the Coral Accelerator Module



which allows you to integrate the Edge TPU into your custom PCB hardware as a surface

mounted module



The Edge TPU is a small ASIC designed by Google that accelerates TensorFlow Lite models in a power e

ﬃ

cient manner



each one is capable of performing 4 trillion operations per second

(

4 TOPS

using 2 watts of power

—

that

s 2 TOPS per 

watt

For example

one Edge TPU can execute state

the

art mobile vision models such as MobileNet v2 at almost 400 

frames per second

This on

device ML processing reduces latency

increases data privacy

and removes the need for a 

constant internet connection

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Ordering information 



Part number 

Description 

G650

03324

01 

Coral Dev Board Mini 



Coral



Summary of content (14 pages)

PAGE 1
Dev Board Mini datasheet Version 1.1 Features ● ● ● ● ● ● ● ● ● ● ● ● ● ● MediaTek 8167s SoC ○ Quad-core ARM Cortex-A35 ○ Imagination PowerVR GE8300 GPU Google Edge TPU ML accelerator ○ 4 TOPS peak performance (int8) ○ 2 TOPS per watt ARM TrustZone Security Wi-Fi 5, Bluetooth 5.0 8 GB eMMC, 2 GB LPDDR3 USB 2.0 Type-C OTG HDMI 1.4a (micro) MIPI DSI display MIPI CSI camera 3.5 mm headphone jack Digital PDM microphone 2.
PAGE 2
Dev Board Mini datasheet v1.1 G650-03324-01 Table of contents Features 1 Description 1 Ordering information 1 Table of contents 2 1 System components 3 1.1 Block diagram 5 2 Mechanical dimensions 6 3 Electrical speciﬁcations 7 3.1 Recommended operating conditions 3.2 Logic threshold levels 3.3 Power consumption 4 Board peripherals 4.1 Buttons 4.2 USB-C ports 4.3 LED 4.4 Mono speaker terminal 4.5 Headphone jack 4.6 Microphone 4.7 Micro HDMI port 4.8 MicroSD slot 4.9 GPIO header 4.
PAGE 3
Dev Board Mini datasheet v1.1 G650-03324-01 1 System components Table 1. Dev Board Mini components and features Feature Details Main system-on-chip (MediaTek MT8167s) ARM Cortex-A35 Quad-core Cortex-A35 processors: ● 64-bit Armv8-A architecture ● 32 KB L1 Instruction Cache ● 32 KB L1 Data Cache ● 512 KB uniﬁed L2 cache ● Frequency up to 1.5 GHz Graphics Processing Unit (GPU) Imagination PowerVR GE8300: ● 150 million triangles/sec ● 1.6 gigapixel/sec @ 600MHz ● Supports OpenCL 1.2, and Vulkan 1.
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Dev Board Mini datasheet v1.1 G650-03324-01 Memory and storage Random access memory (SDRAM) ● ● ● 2 GB LPDDR3 SDRAM (4-channel, 32-bit bus width) 1600 MHz maximum DDR clock Interfaces directly to the built-in DDR controller of the SoC Flash memory (eMMC) ● ● ● 8 GB NAND eMMC ﬂash memory 8-bit MMC mode Conforms to JEDEC version 5.0 and 5.1 Expandable ﬂash (microSD) ● ● ● ● Meets SD/SDIO 3.
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Dev Board Mini datasheet v1.1 G650-03324-01 1.1 Block diagram Figure 1. Dev Board Mini functional block diagram Coral.ai | Copyright 2020 Google LLC.
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Dev Board Mini datasheet v1.1 G650-03324-01 2 Mechanical dimensions Table 2. Physical speciﬁcations Measurement Value Size 64.0 × 48.0 × 14.6 mm Weight 25.5 g Figure 2. Dev Board Mini dimensions Coral.ai | Copyright 2020 Google LLC.
PAGE 7
Dev Board Mini datasheet v1.1 G650-03324-01 3 Electrical speciﬁcations 3.1 Recommended operating conditions Table 3. Board operating conditions Parameter Min Typical Max Board supply voltage (VIN) 4.5 V 5V 5.5 V General purpose I/O voltage (VCC3IO) 2.97 V 3.3 V 3.63 V Operating temperature 0 °C – 50 °C Storage temperature -40 °C – 85 °C Typical operation is based on a 5 V / 2 A power supply via USB. Each USB port allows a max current of 2 A.
PAGE 8
Dev Board Mini datasheet v1.1 G650-03324-01 4 Board peripherals Figure 3. User interface and peripheral components 4.1 Buttons The board has two tactile switch buttons: ● ● Power button: This controls board power. If only the USB-C power port is connected, you must press this button to boot the board (press ﬁrmly). You can power-oﬀ the board by pressing it again. If the USB OTG port is connected to power, then the board boots automatically and this button instead reboots the board (see section 5.
PAGE 9
Dev Board Mini datasheet v1.1 G650-03324-01 4.4 Mono speaker terminal This is a 2-pin 2.54 mm-pitch terminal connector for a 4Ω/8Ω mono speaker (up to 1 W). Wire polarity is indicated in ﬁgure 4. Figure 4. Mono speaker terminal 4.5 Headphone jack This is a CTIA compliant audio jack. It supports stereo audio output and mono microphone input. By default, the microphone expects analog input.
PAGE 10
Dev Board Mini datasheet v1.1 G650-03324-01 Figure 5. Basic pin layout for the 40-pin header Note: Pins 8, 10, 29, 31, and 37 should not be used to drive resistive loads directly, due to weak drive strength. Table 6. Default GPIO conﬁguration in Mendel (device names correspond to ﬁles in the Linux device interface) SoC pin Device name Default function Pin Default function +3.
PAGE 11
Dev Board Mini datasheet v1.1 G650-03324-01 Table 7. GPIO pin default states Pin Default function Default state Pin Default function Default state 3 I2C1_SDA High (4.7K pull-up) 23 SPI_CLK Low 5 I2C1_SCL High (4.7K pull-up) 24 SPI_CSB Low 7 GPIO22 Low 26 GPIO8 Low 8 UART0_TX High (10K pull-up) 27 I2C2_SDA High (4.7K pull-up) 10 UART0_RX High (10K pull-up) 28 I2C2_SCL High (4.
PAGE 12
Dev Board Mini datasheet v1.1 G650-03324-01 4.10 Camera connector (CSI) The MIPI CSI-2 camera connector is a 24-pin ﬂex cable connector that's designed for the Coral Camera. It provides 4 lanes with a maximum lane speed of 1 Gb/s. For more detail, see the Camera datasheet. Table 8.
PAGE 13
Dev Board Mini datasheet v1.1 G650-03324-01 5 Board operation The factory setting includes Mendel Linux ﬂashed on the eMMC memory. It includes all the software you need to run TensorFlow Lite models on the Edge TPU. To set up your board, see Get started with the Dev Board Mini. 5.1 Power supply The board requires a DC power supply that can provide 2 A at 5 V.
PAGE 14
Dev Board Mini datasheet v1.1 G650-03324-01 If you need more power for accessories on the GPIO header, you can increase the total power by connecting a separate power supply to each USB port. Doing so allows the 5 V header pin to deliver a maximum of 16 W to the add-on board (if both power supplies provide 10 W each). 5.2 Shell and serial console You can access the board's shell terminal over SSH after you place your OpenSSH public key on the board.