Hardware Reference
In-Depth Information
The following table shows the difference between the Raspberry Pi models:
What's onboard?
Model A
Model B
Model B+
Memory (RAM)
256 MB
512 MB
512 MB
USB ports
1
2
4
Storage card type
Standard SD
Standard SD
Micro SD
Power consumption
300 mA (1.5 W)
700 mA (3.5 W)
600 mA (3.0 W)
Ethernet networking
no
yes
Yes
The ins and outs of the Raspberry Pi
At the heart of the Pi is the Broadcom
BCM2835 System on a Chip
(
SOC
)—imagine
all the common hardware components of a PC baked into a small chip. The CPU
is called
ARM1176JZF-S
, runs at 700 MHz, and belongs to the ARM11 family of
the ARMv6 architecture. For graphics, the Pi sports a Broadcom
VideoCore IV
GPU, which is quite powerful for such a tiny device and capable of full HD video
playback. The following figure shows the Raspberry Pi Model B:
Raspberry Pi Model B board showing key components
