Model B Power

microUSB Power Input Has a 1.1 A polyfuse (700mA "hold current"). RPi Power Consumption Varies depending on how busy it is and what peripherals are connected. Running a GUI and running the GPU will take extra power. The USB devices and Ethernet connection will take power. General usage Reported current requirements of between 300mA and […]

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Model B Hardware General Specifications

  Memory 512MB RAM Connections 2 USB ports Ethernet port 3.5mm jack for audio out HDMI Composite Video Processor SoC is a Broadcom BCM2835 This contains an ARM1176JZFS (ARM11 using an ARMv6-architecture core) with floating point, running at 700Mhz, and a Videocore 4 GPU. GPU The first version of the GPU used came out in […]

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Model B CAD & Mounting Info

The Raspberry Pi PCB measures 85mm x 56.2mm excluding overhanging connectors and is 20.8mm high. PCB Gerbers http://www.raspberrypi.org/archives/344 No actual gerber files have been released the last time we looked (07/2012). Official CAD There is no official drawing the last time we looked (07/2012). Our CAD This is our 2D drawing of the Raspberry Pi.  […]

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Model B IO Pins

  3.3V Output External circuitry may draw up to a total of 50mA max current from the 3.3V Out pins. Is maximum current from 3.3V pin really 50mA? IO Pins All IO pins are 3.3V, not 1.8V.  Pins are not 5V tolerant. Full details are available here Max Current Maximum 16mA per IO pin with the total current […]

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Model B schematics

The updated schematics page is available here. Previous schematic links The Raspberry Pi Model B Revision 1 schematics are available here The Raspberry Pi Model B Revision 2 schematics are available here

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