1  ---
 2  layout: download
 3  board_id: "raspberry_pi_1a"
 4  title: "Raspberry Pi 1 Model A Download"
 5  name: "Raspberry Pi 1 Model A"
 6  manufacturer: "Raspberry Pi Foundation"
 7  board_url: "https://www.adafruit.com/product/998"
 8  board_image: "raspberry_pi_1a.jpg"
 9  download_instructions: "https://learn.adafruit.com/circuitpython-on-raspberrypi-linux/installing-circuitpython-on-raspberry-pi"
10  downloads_display: true
11  blinka: true
12  features:
13  - HDMI
14  - Composite Video
15  - 26-pin GPIO
16  ---
17  
18  The Raspberry Pi 1 Model A is the original Model A.  In November 2014 It was superseded by the Raspberry Pi 1 Model A+
19  
20  - Broadcom BCM2835, ARM11 76JZF-S SoC @ 700MHz
21  - 256MB RAM
22  - 26-pin GPIO header
23  - Separate Composite Video Output
24  - 1 USB 2.0 port
25  - CSI camera port for connecting a Raspberry Pi camera
26  - DSI display port for connecting a Raspberry Pi touchscreen display
27  - Stereo audio output port
28  - Full-size SD port for loading your operating system and storing data
29  
30  ## Contribute
31  
32  Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_blinka/{{ page.board_id }}.md).