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AT90S2323/AT90S2343 demo board

atoomnetmarc·AVR-demo-board·at90s2323/Kicad/at90s2323.kicad_pcb

AT90S2323/AT90S2343 demo board layout, top view — open source AVR/Arduino board by atoomnetmarc

About the AT90S2323/AT90S2343 demo board

AT90S2323/AT90S2343 demo board is an open source AVR/Arduino PCB design by atoomnetmarc, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 99.1 × 99.1 mm, with 167 components from 20 distinct parts.

Its main chip is the AT90S2323, from the AVR/Arduino family. Other key parts include the 74HC595, TPIC6B595, L7805 and MAX809M. By type, the board carries 130 diodes, 18 resistors, 7 capacitors, 6 ICs, 4 connectors and 1 crystal.

It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.

From the project

AVR demo boards for old AT90S* microcontrollers.

Demo board for the 20-pin AT90S1200 and AT90S2313 microcontroller.

Yes these chips are old, Arduino was not a thing back then. The AT90S1200 on the pcb is my first microcontroller I bought and programmed. It has a date code of 1998 week 40. I wrote software for it using AVR studio (4?) in assembler and programmed it using the Handyman programmer and software made by Elektor.

AT90S2323/AT90S2343 demo board, from the project README
From the project README

Main components on the AT90S2323/AT90S2343 demo board

74HC595TPIC6B595L7805AT90S2323MAX809M

AT90S2323/AT90S2343 demo board bill of materials (BOM)

167 components, 20 distinct parts.

QtyPartRefs
2
74HC595
U1, U2
1
TPIC6B595
U3
1
L7805
U4
1
AT90S2323
U5
1
MAX809M
U6
1
10MHz
Y1
1
Barrel_Jack_Switch
J1
1
AVR-ISP-10
J2
2
Conn_01x04_Male
J3, J4
1
SW_Push
SW1
128
blue opaque
D1, D2, D3, D4, D5, D6, D7, D8 +120
1
1N5819
D129
1
BAV99
D130
2
15pF
C1, C2
1
100uF 16V
C3
1
33uF 16V
C4
3
100nF
C5, C6, C7
16
300R
R1, R2, R3, R4, R5, R6, R7, R8 +8
1
100k
R17
1
100R
R18

AT90S2323/AT90S2343 demo board design files

The KiCad project lives in the atoomnetmarc/AVR-demo-board repository on GitHub; these links point at the commit this page was built from.

AT90S2323/AT90S2343 demo board: common questions

What microcontroller does the AT90S2323/AT90S2343 demo board use?

The AT90S2323/AT90S2343 demo board is built around the AT90S2323, from the AVR/Arduino family.

How big is the AT90S2323/AT90S2343 demo board?

The AT90S2323/AT90S2343 demo board measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AT90S2323/AT90S2343 demo board?

167 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the AT90S2323/AT90S2343 demo board design files?

From the atoomnetmarc/AVR-demo-board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the AT90S2323/AT90S2343 demo board design in my own project?

Yes, under the terms of its Apache-2.0 license, which atoomnetmarc chose for the repository.

Can I test firmware for the AT90S2323/AT90S2343 demo board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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