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Intel MCS-48 Badge

Development board and conference badge based on the 1976 Intel 8048 microcontroller

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This is a development board based on the Intel 8048 microcontroller. The 8048 and the associated MCS-48 family was Intel's first microcontroller released in 1976. It is an 8-bit chip with external data bus and 27 built-in GPIO pins with clock speeds up to 11 Mhz. While the 8048 contains a mask ROM it program, all of the MCS-48 familty supported bypassing the internal ROM and executing out of external EPROM which is used in this development board. Expansion is implemented through a 40pin RCBUS port. With the addition of addressable LED ASCII display and an enclosure the 8048 is transformed into a conference badge to truly look the part at VCFSW.

dosbox2.png

8048 IDE with assembler and simulator running under DOS

Portable Network Graphics (PNG) - 7.07 kB - 10/19/2026 at 05:59

Preview

dosbox.png

ASM development with dosbox

Portable Network Graphics (PNG) - 4.92 kB - 10/19/2026 at 05:57

Preview

8048_badge_Case-Body.step

8048 dev board Badge case

step - 66.63 kB - 10/19/2026 at 05:51

Download

MCS-48-Devboard-V02.zip

Gerbers

Zip Archive - 282.12 kB - 10/19/2026 at 05:50

Download

8048_devboard_v02.pdf

Schematic

Adobe Portable Document Format - 89.29 kB - 10/19/2026 at 05:42

Preview

View all 7 files

  • 1 × 8048 8 bit MCU
  • 1 × SN74HC573 Logic ICs / Buffers, Drivers, Transceivers
  • 1 × AT28C64B Parallel EEPROM
  • 1 × 8155 RAM + IO expander
  • 1 × 7805 Voltage regulator

View all 6 components

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