2 layers100.1 × 63.1 mm
Fg99
endlos99/finalgrom99
A cartridge for the TI 99/4A that runs ROM and GROM images from an SD card
34 parts96GPL-3.0
2 layers64.8 × 32 mm
Rs ttl
bitomaxsp/rs-ttlRS232 to TTL converter
- Size
- 64.8 × 32 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 19
- Pads
- 72
- Tracks, vias
- 135, 6
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Oct 2019
- Updated
- 19 Jun 2020
Overview
Rs ttl is an open-source printed circuit board by bitomaxsp, from the bitomaxsp/rs-ttl repository on GitHub. It is a 2-layer board of 64.8 × 32 mm with 19 parts on 19 nets, routed with 135 tracks and 6 vias.
It is built around the MAX232N and NCP1117ST. Its parts include 7 capacitors, 4 connectors, 2 resistors, 2 ICs and 2 diodes.
Main components
2README
README.mdRS232 to TTL converter
Can be used to connect any 5V logic device to RS232 device such as PC
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C4, C5, C6, C7 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2 |
| 2 | LED_Small | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 0.1F | Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder | C3 |
| 1 | 0.33uF | Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder | C1 |
| 1 | 7-20V Ext | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | DB9_Female | Connector_Dsub:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset9.90mm_Housed_MountingHolesOffset11.32mm | J5 |
| 1 | DB9_Male | Connector_Dsub:DSUB-9_Male_Horizontal_P2.77x2.84mm_EdgePinOffset9.90mm_Housed_MountingHolesOffset11.32mm | J1 |
| 1 | MAX232 | Package_SO:SOP-16_4.55x10.3mm_P1.27mm | U2 |
| 1 | NCP1117 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | TTL Data, 5V | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J3 |
The 17 most common of 19 parts.
Questions
How big is the Rs ttl PCB?
It measures 64.8 × 32 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rs ttl use?
19 parts, built around the MAX232N and NCP1117ST. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Rs ttl KiCad files?
From the bitomaxsp/rs-ttl repository on GitHub, at the commit this page was made from: the board is rsttl.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rs ttl design in my own project?
Its repository states no licence, so its author keeps all rights: ask bitomaxsp before reusing the design.
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