2 layers42.8 × 53 mm
2 layers10 × 26 mm
TTLSerialAdapter
ZigZagJoe/ISP-SIMM_public12ISP-SIMM Support Files
- Size
- 10 × 26 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 11
- Nets
- 16
- Pads
- 50
- Tracks, vias
- 150, 13
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Jan 2024
- Updated
- 22 Feb 2026
Overview
TTLSerialAdapter is an open-source printed circuit board by ZigZagJoe, from the ZigZagJoe/ISP-SIMM_public repository on GitHub. It is a 2-layer board of 10 × 26 mm with 11 parts on 16 nets, routed with 150 tracks and 13 vias.
It is built around the MAX3232ID and AMS1117-3.3. Its parts include 6 capacitors, 3 connectors and 2 ICs.
Main components
2
MAX3232ID
SOIC-16-40℃~+85℃ 2 2 250Kbps 300uA 3V~5.5V Short-Circuit Protection Transceiver Yes ±15kV SOIC-16 RS232 ICs ROHSTexas InstrumentsRS232 ICs
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C6 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | MAX3232 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | RS232 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3 |
| 1 | TTL_IN | Connector_JST:JST_SUR_SM04B-SURS-TF_1x04-1MP_P0.80mm_Horizontal | J1 |
| 1 | TTL_IN | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
Questions
How big is the TTLSerialAdapter PCB?
It measures 10 × 26 mm and has 2 copper layers, 1 mm thick.
What parts does the TTLSerialAdapter use?
11 parts, built around the MAX3232ID and AMS1117-3.3. 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 TTLSerialAdapter KiCad files?
From the ZigZagJoe/ISP-SIMM_public repository on GitHub, at the commit this page was made from: the board is TTLSerialAdapter/TTLSerialAdapter.kicad_pcb and its schematic TTLSerialAdapter/TTLSerialAdapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TTLSerialAdapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask ZigZagJoe before reusing the design.
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