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MUTIF09 I/O Expansion Board

ja1umi·MUTIF09Project·IOExpansion/IOExpansion/IOExpansion.kicad_pcb

MUTIF09 I/O Expansion Board layout, top view — open source board by ja1umi

About the MUTIF09 I/O Expansion Board

MUTIF09 I/O Expansion Board is an open source PCB design by ja1umi, published on GitHub under the MIT license. It is a 2-layer board measuring 155 × 114 mm, with 181 components from 35 distinct parts.

Other key parts include the MCP810-450, MCP809-315, SG-8002DC, PC16550D and 4ch_Level_Shifter_BSS138. By type, the board carries 14 ICs, 13 capacitors, 11 resistors, 10 connectors and 7 jumpers.

It belongs with the sensors designs in this gallery.

From the project

Various design materials for building my 8-bit-microprocessor-based single board computer(s)

Revision 3, works as expected (May 21, 2019)

MUTIF09 I/O Expansion Board is designed to add I2C (5V and 3.3V), SPI (3.3V) and GPIO (data pins are 5V tolerant but 3.3V is preferable) connectivity and functionality via TTL serial connection. Basically, this board is intended for use together with the MUTIF09 6809 SBC but theoretically it can work with other single board computer with minimal modification.

Main components on the MUTIF09 I/O Expansion Board

MCP810-450MCP809-315SG-8002DCPC16550D4ch_Level_Shifter_BSS1384ch_Level_Shifter_BSS138(AKI)GAL16V8SC18IM700DS3231_BreakoutPCA9641 (or PCA9541)SC18IS602BADuM1250MCP809-450LM3671_Breakout

MUTIF09 I/O Expansion Board bill of materials (BOM)

181 components, 35 distinct parts.

QtyPartRefs
1
MCP810-450
U1
1
MCP809-315
U2
1
SG-8002DC
U3
1
PC16550D
U4
1
4ch_Level_Shifter_BSS138
U5
1
4ch_Level_Shifter_BSS138(AKI)
U6
1
GAL16V8
U7
1
SC18IM700
U8
1
DS3231_Breakout
U9
1
PCA9641 (or PCA9541)
U10
1
SC18IS602B
U11
1
ADuM1250
U12
1
MCP809-450
U14
1
LM3671_Breakout
U15
1
UART_5V
J5
1
GPIO_3V3
J6
1
I2C_INT
J8
1
SPI_3V3
J9
1
HEADER 2x20
J10
1
I2C_5V
J11
Show 15 more
QtyPartRefs
1
I2C_3V3
J12
1
I2C_ALT_Master
J13
1
I2C_Debug_3V3
J14
1
SQW_OUT
J15
1
A3
JP2
2
A2
JP3, JP4
2
A1
JP5, JP6
2
A0
JP7, JP8
126
pad
REF00, REF01, REF02, REF03, REF04, REF05, REF06, REF07 +118
11
0.1u
C1, C2, C3, C4, C5, C6, C7, C8 +3
2
10u
C12, C13
4
10K
R1, R2, R11, R13
1
1K
R5
4
4.7K
R6, R7, R8, R9
2
R
R14, R15

MUTIF09 I/O Expansion Board design files

The KiCad project lives in the ja1umi/MUTIF09Project repository on GitHub; these links point at the commit this page was built from.

MUTIF09 I/O Expansion Board: common questions

How big is the MUTIF09 I/O Expansion Board?

The MUTIF09 I/O Expansion Board measures 155 × 114 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MUTIF09 I/O Expansion Board?

181 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the MUTIF09 I/O Expansion Board design files?

From the ja1umi/MUTIF09Project repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MUTIF09 I/O Expansion Board design in my own project?

Yes, under the terms of its MIT license, which ja1umi chose for the repository.

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