This is a special version PAL-1 SBC kit. The difference between this edition and the original PAL-1 kit is the chips (red circle in picture 1) using in this kit are recycled or refurbished. These ICs are scratched or with some short pins, but TESTED and OPERATING NORMALLY, they just look ugly.

Please refer to the photo for the ACTUALLY ICs included in these LR PAL-1 SBC kit.

KIM-1 is a small single-board computer based on MOS 6502 microprocessor released by MOS Technology company in 1976. It is considered one of the earliest single-board computers and achieved great success in the 1970s.

KIM-1 consists of two 6530 chips together providing 2K bytes of ROM (Monitor program, 1K bytes per chip), 128 bytes of RAM (64 bytes per chip), and four 8-bit bidirectional IO Ports (two per chip) and two programmable clocks/timers (one per chip). The RAM of KIM-1 is usually called 1K byte capacity, but to be precise, the RAM space it can provide is 1152 bytes (8 1K bits RAM + 128 bytes RAM in two 6530); A 23-key hexadecimal keyboard is used for program and instruction input, and 6 seven-segment LED displays can completely display the address information and data information of the 6502 CPU; KIM-1 also provides the connection capability of the TTY terminal and tapecorder to store and load programs.

What is included

The PAL-1 Kit includes mainboard PCB, ICs, pre-programmed ROM, passive components, sockets & headers.

Print version BOM, Schematic.

What is NOT included

You will need a 7.5V/1A DC power adapter (5.5*2.5/2.1mm) to power your PAL-1, and a RS232 cable if you want to use the terminal function.

Users Group

For building, debugging, communication with other PAL-1 users - Google Groups

Document

User Manual (en)

Documents Pack (en & zh)

Interactive BOM

Recommend site

Nils' load and go repository

Jim's Repository

Hans' knowledge base

Philippe's 3D printer case