2 layers381.2 × 170 mm
PC110
ahmadexp/Open-Source-PC110
Figuring out the missing technical documentation of the beloved PC110
1,483 parts98
6 layers64.6 × 58.9 mm
Figuring out the missing technical documentation of the beloved PC110
- Size
- 64.6 × 58.9 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 212
- Nets
- 259
- Pads
- 758
- Tracks, vias
- 3,642, 344
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Jan 2025
- Updated
- 13 Oct 2026
Overview
Modem is an open-source printed circuit board by ahmadexp, from the ahmadexp/Open-Source-PC110 repository on GitHub. It is a 6-layer board of 64.6 × 58.9 mm with 212 parts on 259 nets, routed with 3,642 tracks and 344 vias.
It is built around the BA8206F-E2, TC7S14FU and TC7S32FU-TP, with the 2SC4097-Q-TP, DTC143ZUA and 02DZ15 among its other parts. Its parts include 112 resistors, 45 capacitors, 8 ICs, 7 diodes and 6 transistors.
Main components
8
BA8206F-E2
SOP-8Telecom Interface ICsROHM SemiconductorTC7S14FU
SSOP-5-1.25mmSSOP-5-1.25mm Inverters ROHSToshibaInverters
TC7S32FU-TP
SOT-353-40℃~+125℃ 1 1 1.65V~5.5V Unidirectional SOT-353 Logic Gates ROHSTECH PUBLICLogic Gates
2SC4097-Q-TP
SOT-323Bipolar (BJT)Micro Commercial ComponentsDTC143ZUA
SOT-323-55℃~+150℃ 1 NPN (Pre-Biased) 1.3V@5mA,0.3V 100mA 12 200mW 250MHz 300mV@5mA,0.25mA 500mV@100uA,5V 50V 6.11kΩ 80 NPN SOT-323 Digital Transistors ROHSJiangsu Changjing Electronics Technology (CJ)Digital Transistors
02DZ15
SOD-323SOD-323 New Arrivals ROHSToshibaUncategorised
2SD1664-Q
SOT-891 NPN 150MHz 1A 32V 390 400mV 500mW 500nA 5V NPN SOT-89 Bipolar (BJT) ROHSFoshan Blue Rocket ElecBipolar (BJT)
AQW210S
SOP-8-2.54mm-40℃~+85℃ 1.25V 1.5kV 100mA 16Ω 230us 350V 40us 50mA 650mW AC,DC One set normally open: 2A (SPST - normally open) SOP-8-2.54mm Solid State Relays (MOS Output) ROHSPanasonicSolid State Relays (MOS Output)
README
PCB/RAM-16MB/README.md16MB RAM Module PCB
Layer Stack-up
| Index | Layer name | Description |
|---|---|---|
| 1 | FC | Top |
| 2 | IP1 | Power |
| 3 | IP2 | Ground |
| 4 | BC | Bottom |
Here is a rendering of FC, IP1, IP2 and BC:
Here are renderings of the 3D model of the Docking Station PCB
PCB statistics report
- Date: Tuesday, March 25, 2025 at 03:06:19 AM
- Project: RAM-Module
- Board name: RAM-Module
Board
- Width: 41.4600 mm
- Height: 41.6000 mm
- Area: 1724.3156 mm²
- Thickness: 0.6mm
Pads
- Through hole: 0
- SMD: 312
- Connector: 0
- NPTH: 0
Vias
- Through vias: 152
- Blind/buried: 0
- Micro vias: 0
Components
| Front Side | Back Side | Total | |
|---|---|---|---|
| THT: | 0 | 0 | 0 |
| SMD: | 17 | 4 | 21 |
| Unspecified: | 0 | 1 | 1 |
| Total: | 17 | 5 | 22 |
Drill holes
| Count | Shape | X Size | Y Size | Plated | Via/Pad | Start Layer | Stop Layer |
|---|---|---|---|---|---|---|---|
| 152 | Round | 0.3000 mm | 0.3000 mm | PTH | Via | FC | BC |
Parts
212| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | 100 | Resistor_SMD:R_0402_1005Metric | R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112, R114, R115, R116, R117 +18 |
| 12 | 4.7k | Resistor_SMD:R_0402_1005Metric | R2, R3, R28, R29, R30, R31, R32, R36, R37, R38, R41, R43 |
| 10 | 1u | Capacitor_SMD:C_0603_1608Metric | C15, C29, C30, C32, C42, C43, C51, C55, C70, C72 |
| 8 | 10k | Resistor_SMD:R_0402_1005Metric | R13, R21, R47, R49, R62, R67, R82, R133 |
| 5 | 0.022u | Capacitor_SMD:C_0603_1608Metric | C40, C46, C47, C48, C49 |
| 5 | 0.22u | Capacitor_SMD:C_0603_1608Metric | C5, C24, C37, C52, C58 |
| 5 | 0.33u | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C54, C56 |
| 5 | 470k | Resistor_SMD:R_0402_1005Metric | R51, R72, R79, R90, R100 |
| 5 | TC7S14FU | Package_TO_SOT_SMD:SOT-353_SC-70-5 | IC2, IC7, IC9, IC13, IC17 |
| 4 | 10 | Resistor_SMD:R_1206_3216Metric | R9, R26, R33, R34 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R7, R20, R63, R81 |
| 3 | 1.5u | Inductor_SMD:L_0603_1608Metric | L3, L4, L5 |
| 3 | 1000p | Capacitor_SMD:C_0603_1608Metric | C2, C34, C41 |
| 3 | 1SV203 | Modem:D_1206_3216Metric_modem | D3, D4, D8 |
| 3 | 39k | Resistor_SMD:R_0402_1005Metric | R10, R11, R68 |
| 3 | S1ZB60 | Package_TO_SOT_SMD:TO-269AA | D1, D7, D9 |
| 3 | ~ | Resistor_SMD:R_0402_1005Metric | R22, R23, R27 |
| 2 | 0.33u | Capacitor_SMD:C_2220_5750Metric | C59, C60 |
| 2 | 1.2k | Resistor_SMD:R_0402_1005Metric | R70, R71 |
| 2 | 1.5k | Resistor_SMD:R_0402_1005Metric | R18, R46 |
| 2 | 1.5u | Inductor_SMD:L_1206_3216Metric | L1, L2 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric | R98, R99 |
| 2 | 12k | Resistor_SMD:R_0402_1005Metric | R1, R8 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C23, C71 |
| 2 | 2.2k | Resistor_SMD:R_2010_5025Metric | R12, R75 |
| 2 | 2SC4097-Q | Package_TO_SOT_SMD:SOT-323_SC-70 | Q1, Q4 |
| 2 | 330n | Inductor_SMD:L_1206_3216Metric | NF1, NF4 |
| 2 | 47u | Capacitor_SMD:C_1812_4532Metric | C12, C45 |
| 2 | DTC143ZUA | Package_TO_SOT_SMD:SOT-323_SC-70 | Q3, Q7 |
| 2 | TC7S32FU | Package_TO_SOT_SMD:SOT-353_SC-70-5 | IC6, IC14 |
| 1 | 0 | Inductor_SMD:L_1206_3216Metric | NF3 |
| 1 | 0.01u | Capacitor_SMD:C_0603_1608Metric | C26 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C39 |
| 1 | 0.22u | Capacitor_SMD:C_1206_3216Metric | C31 |
| 1 | 0.22u | Capacitor_SMD:C_0805_2012Metric | C74 |
| 1 | 0.22u | Capacitor_SMD:C_2220_5750Metric | C62 |
| 1 | 02DZ15 | Diode_SMD:D_1206_3216Metric | D10 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R54 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 100p | Capacitor_SMD:C_0402_1005Metric | C73 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R53 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric | C28 |
| 1 | 120 | Resistor_SMD:R_0603_1608Metric | R73 |
| 1 | 15 | Resistor_SMD:R_0402_1005Metric | R65 |
| 1 | 15 | Resistor_SMD:R_1206_3216Metric | R56 |
| 1 | 150 | Resistor_SMD:R_0603_1608Metric | R57 |
| 1 | 1500p | Capacitor_SMD:C_0402_1005Metric | C53 |
| 1 | 15k | Resistor_SMD:R_0402_1005Metric | R42 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R52 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R60 |
| 1 | 2.4k | Resistor_SMD:R_0402_1005Metric | R76 |
| 1 | 20 | Resistor_SMD:R_1206_3216Metric | R35 |
| 1 | 200 | Resistor_SMD:R_0603_1608Metric | R24 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R69 |
| 1 | 22k | Resistor_SMD:R_0402_1005Metric | R59 |
| 1 | 22u | Capacitor_SMD:C_1206_3216Metric | C13 |
| 1 | 2700p | Capacitor_SMD:C_0603_1608Metric | C38 |
| 1 | 270k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 2SA1577-P | Package_TO_SOT_SMD:SOT-323_SC-70 | Q6 |
| 1 | 2SD1664-Q | Package_TO_SOT_SMD:SOT-89-3 | Q2 |
| 1 | 3.3 | Resistor_SMD:R_1206_3216Metric | R48 |
| 1 | 3.3k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 3.6k | Resistor_SMD:R_0402_1005Metric | R61 |
| 1 | 330 | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 330k | Resistor_SMD:R_0402_1005Metric | R77 |
| 1 | 41.472MHz | Oscillator:Oscillator_SMD_Fordahl_DFAS2-4Pin_7.3x5.1mm | OSC1 |
| 1 | 47k | Resistor_SMD:R_0402_1005Metric | R92 |
| 1 | 5.6k | Resistor_SMD:R_0402_1005Metric | R78 |
| 1 | 51 | Resistor_SMD:R_0402_1005Metric | R44 |
| 1 | 510k | Resistor_SMD:R_0402_1005Metric | R25 |
| 1 | 52271-0890 | Modem:JST_8_headset_connector | CNP3 |
| 1 | 560k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 560n | Inductor_SMD:L_1206_3216Metric | NF2 |
| 1 | 6.2k | Resistor_SMD:R_0603_1608Metric | R50 |
| 1 | 620 | Resistor_SMD:R_0603_1608Metric | R58 |
| 1 | 8-176757-6 | Modem:Modem-Connector | CNP4 |
| 1 | 8.2u | Capacitor_SMD:C_1206_3216Metric | C57 |
| 1 | 82 | Resistor_SMD:R_2010_5025Metric | R55 |
| 1 | AQW210S | Modem:RL | RL1 |
| 1 | BA8206F | Package_SO:SOIC-8_5.3x6.2mm_P1.27mm | IC15 |
The 191 most common of 212 parts.
Questions
How big is the Modem PCB?
It measures 64.6 × 58.9 mm and has 6 copper layers, 1.6 mm thick.
What parts does the Modem use?
212 parts, built around the BA8206F-E2, TC7S14FU, TC7S32FU-TP and 2SC4097-Q-TP. 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 Modem KiCad files?
From the ahmadexp/Open-Source-PC110 repository on GitHub, at the commit this page was made from: the board is PCB/Modem/Modem.kicad_pcb and its schematic Mods/CPU Upgrade/bgacpu-dualcon/bgacpu-dualcon.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Modem design in my own project?
Its repository states no licence, so its author keeps all rights: ask ahmadexp before reusing the design.
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