Pmod i2c24io
About the Pmod i2c24io PCB
Pmod i2c24io is an open source PCB design by fm4dd, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 62.6 × 21.7 mm, with 89 components from 13 distinct parts.
Other key parts include the TCA6424ARGJR. By type, the board carries 53 resistors, 24 diodes, 4 connectors, 3 test points, 3 capacitors and 1 IC.
It belongs with the test & measurement designs in this gallery.
From the project
This Type-6 I2C PMOD provides a 24-bit digital IO expander, using the Texas Instruments TCA6424A circuit.
This project is a 24-bit digital IO expander module, using the Texas Instruments TCA6424A circuit utilizing I2C. The design is available with two connector types: either Type-6 (I2C single-row) or Type-6A (I2C extended double-row) compatible interface per open PMOD interface standard v1.3.1 by Digilent Inc. PMOD (peripheral module interface) standardizes connectivity with FPGA or microcontroller development boards. This design is registered under the OSHWA Open Source Hardware Self-Certification:
Main components on the Pmod i2c24io
Pmod i2c24io bill of materials (BOM)
89 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TCA6424ARGJR TCA6424A | UQFN-32-1EP_5x5mm_P0.5mm_EP3.15x3.15mm_ThermalVias | U1 |
| 1 | PMOD_02x06 | PMODHeader_2x06_P2.54mm_Horizontal | J1 |
| 1 | PMOD_02x06 | PMODPinSocket_2x06_P2.54mm_Horizontal | J2 |
| 1 | Conn_01x14 | PinHeader_1x14_P2.54mm_Vertical | J3 |
| 1 | Conn_01x12 | PinHeader_1x12_P2.54mm_Vertical | J4 |
| 1 | SW_DIP_x03 | SW_DIP_SPSTx03_Slide_6.7x9.18mm_W7.62mm_P2.54mm_LowProfile | SW1 |
| 3 | TestPoint | TestPoint_Keystone_5000-5004_Miniature | TP1, TP2, TP3 |
| 24 | TJ-S1005SW4TGLC0A-A5 LED_Small | LED_0402_1005Metric | D1, D2, D3, D4, D5, D6, D7, D8 +16 |
| 3 | C0402C104K4RECAUTO 0.1uF | C_0402_1005Metric | C1, C2, C3 |
| 24 | 0402WGF4700TCE 470 | R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R7, R8 +16 |
| 2 | 0402WGF4701TCE 4.7K | R_0402_1005Metric | R25, R26 |
| 3 | 0402WGF1002TCE 10K | R_0402_1005Metric | R27, R28, R29 |
| 24 | 0402WGF1003TCE 100K | R_0402_1005Metric | R31, R32, R33, R34, R35, R36, R37, R38 +16 |
Pmod i2c24io design files
The KiCad project lives in the fm4dd/pmod-i2c24io repository on GitHub; these links point at the commit this page was built from.
Pmod i2c24io: common questions
How big is the Pmod i2c24io PCB?
The Pmod i2c24io measures 62.6 × 21.7 mm, has 2 copper layers and is 0.8 mm thick.
How many components are on the Pmod i2c24io?
89 components, from 13 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Pmod i2c24io design files?
From the fm4dd/pmod-i2c24io repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pmod i2c24io design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which fm4dd chose for the repository.
Similar boards
DB9 High-Low Signal Generator
nanographs
47 × 30 mm10 parts2LNo license370
OneInchEye
will127534
39 × 39 mm79 parts4LMIT346
Integralstick mead
azonenberg
65 × 51.5 mm19 parts4LBSD-3-Clause193
Hmcad characterization
57 × 85 mm58 parts4LBSD-3-Clause193
Iob characterization v02
74.5 × 31 mm123 parts4LBSD-3-Clause193
Pmod prbs slow
41 × 20 mm43 parts4LBSD-3-Clause193