RPF Raspberry Pi Model B (256MB)

RPF Raspberry Pi Model B (256MB)

(Est.) release date: 29 February 2012
(Est.) initial retail price (in USD): $35

Type: single-board computer

Power: 5 VDC, ? A
Connector type: USB Female Micro-B

CPU1: Broadcom BCM2835 (700 MHz)
FLA1: 0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br /> (Brand? Model?)
RAM1: 256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (Hynix H9TKNNN2GDMP)

Expansion IFs: SD Card, USB 2.0
USB ports: 2

ETH chip1: SMSC LAN9512
LAN speed: 100M
LAN ports: 1

Flags: HDMI out, audio out (3.5mm)

Ethernet OUI: B8:27:EB (1 E, -, 2012)

	CPU1 brand	FLA1	RAM1
RPF Raspberry Pi 2 Model B (1GB)	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	1,024 MiB1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />1 GiB <br />
RPF Raspberry Pi 3 Model B	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	1,024 MiB1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />1 GiB <br />
RPF Raspberry Pi 3 Model B+	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	1,024 MiB1,073,741,824 B <br />8,388,608 Kib <br />1,048,576 KiB <br />8,192 Mib <br />1 GiB <br />
RPF Raspberry Pi 4 Model B 2GB	Broadcom	0.5 MiB524,288 B <br />4,096 Kib <br />512 KiB <br />4 Mib <br />4.882812e-4 GiB <br />	2,048 MiB2,147,483,648 B <br />16,777,216 Kib <br />2,097,152 KiB <br />16,384 Mib <br />2 GiB <br />
RPF Raspberry Pi 4 Model B 4GB	Broadcom		4,096 MiB4,294,967,296 B <br />33,554,432 Kib <br />4,194,304 KiB <br />32,768 Mib <br />4 GiB <br />
RPF Raspberry Pi Model A	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RPF Raspberry Pi Model B (256MB)	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RPF Raspberry Pi Model B (512MB)	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RPF Raspberry Pi Model B+ (512MB)	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RPF Raspberry Pi Zero	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RPF Raspberry Pi Zero W	Broadcom	0 MiB0 B <br />0 Kib <br />0 KiB <br />0 Mib <br />0 GiB <br />	512 MiB536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

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elinux.org's Raspberry Pi subsection

Board revision table w/ pictures

Raspberry Pi on Wikipedia

Earlier production run Raspberry Pi Model Bs (pre mid-October?) have only 256MB of RAM. All subsequent Model Bs have 512MB of RAM.

Model B Pis use a SMSC LAN9512 (LAN9512-JZX) USB 2.0 hub and FE controller.

Additional external links

• A birthday present from Broadcom on the Raspberry Pi Foundation's news feed

Full documentation for the VideoCore IV graphics core (used in the BCM2835) as well as a complete source release of the graphics stack used by the BCM21553 cellphone SoC (which also has a VideoCore IV core) has been released