MSAP-2 rev.A SMD
MSAP-2 rev.A SMD is an open source AVR/Arduino PCB design by mehrantsi: a 2-layer, 178 × 711 mm board with 658 components (108 distinct parts). It is built around the C7421276, SN74AHCT14PWR, SN74AHCT157PWR, SN74AHCT08DR and more. Filed under displays & leds.
An 8-bit computer. Successor to MSAP-1
The files in this directory are generated from the simulator hardware registry in simulator/src/core/modules.ts. That registry supplies the simulator, pin inspector, power model, netlists, modular PCB layouts, procurement mapping, and monolithic production board.
- MSAP-2 rev.A.net — consolidated KiCad netlist for every declared chip, passive, pin, and net. - MSAP-2 rev.A.kicadpcb — THT-preferred/hybrid development layout. - MSAP-2 rev.A SMD.kicadpcb — SMD-preferred development layout. - KiCad/ — one standalone KiCad schematic per logical module: POWERCLOCKRESET, PROGRAMCOUNTER14B…
Built around
Parts list
658 components, 108 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | C7421276 74VHC161FT(BJ) Toshiba | TSSOP-16_4.4x5mm_P0.65mm | U1, U45 |
| 3 | SN74AHCT14PWR Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U2, U175, U188 |
| 1 | SN74AHCT157PWR Texas Instruments | TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 1 | SN74AHCT08DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 12 | SN74HC161DR 74HC161 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U5, U6, U7, U9, U47, U48, U49, U56 +4 |
| 7 | SN74HC245DWR 74HC245 Texas Instruments | SOIC-20W_7.5x12.8mm_P1.27mm | U8, U14, U15, U19, U115, U122, U124 |
| 9 | CD74HC173M96 74HC173 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U10, U11, U23, U24, U25, U30, U31, U32 +1 |
| 4 | SN74HC193DR 74HC193 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U12, U13, U16, U17 |
| 4 | C5979 74HCT245 Nexperia | SOIC-20W_7.5x12.8mm_P1.27mm | U22, U34, U54, U141 |
| 7 | SN74HC157DR 74HC157 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U28, U29, U116, U117, U119, U128, U129 |
| 1 | IS62C256AL-45ULI IS62C256AL-45ULI-TR Integrated Silicon Solution, Inc. | SOP-28_8.4x18.16mm_P1.27mm | U33 |
| 6 | DS1032-32SSKT1LA AT28C256-15JU Connfly Electronic Co., Ltd. | PLCC-32_Socket | U36, U41, U42, U43, U44, U62 |
| 6 | SN74HC138DR 74HC138 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U37, U46, U51, U58, U69, U90 |
| 4 | SN74HC273DWR 74HC273 Texas Instruments | SOIC-20W_7.5x12.8mm_P1.27mm | U40, U52, U55, U60 |
| 1 | TL16C550DPTR Texas Instruments | LQFP-48_7x7mm_P0.5mm | U50 |
| 1 | SN74HC4040PWR Texas Instruments | TSSOP-16_4.4x5mm_P0.65mm | U61 |
| 5 | SN74HC688PWR Texas Instruments | TSSOP-20_4.4x6.5mm_P0.65mm | U65, U92, U98, U139, U166 |
| 4 | SN74AHCT00DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U66, U67, U68, U251 |
| 8 | C53334 74HC153 Nexperia | SOIC-16_3.9x9.9mm_P1.27mm | U70, U71, U72, U73, U74, U75, U76, U120 |
| 6 | CD74HC283M96 74HC283 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U77, U78, U79, U80, U147, U148 |
Show 88 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | SN74HC04DR 74HC04 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U93, U127 |
| 5 | SN74HC08DR 74HC08 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U95, U118, U126, U153, U154 |
| 2 | SN74HC00DR 74HC00 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U96, U125 |
| 4 | SN74HC74DR 74HC74 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U97, U100, U135, U179 |
| 1 | TPS630701RNMR Texas Instruments | Texas_RNM0015A_VQFN-HR-15_2.5x3mm | U101 |
| 2 | TPS2553DBVR Texas Instruments | SOT-23-6 | U102, U169 |
| 1 | CP2102N-A02-GQFN20R Skyworks Solutions / Silicon Labs | SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U103 |
| 2 | USBLC6-2SC6 STMicroelectronics | SOT-23-6 | U104, U194 |
| 2 | MC74VHC1GT125DBVT1G onsemi | SOT-23-5 | U105, U196 |
| 1 | SN74LVC1G125DBVR Texas Instruments | SOT-23-5 | U106 |
| 2 | SN74LVC1G17DBVR Texas Instruments | SOT-23-5 | U107, U171 |
| 4 | C131089 74HCT273D,653 Nexperia | SOIC-20W_7.5x12.8mm_P1.27mm | U130, U131, U132, U133 |
| 3 | SN74AHCT32DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U136, U176, U187 |
| 1 | ATMEGA4809-AFR Microchip Technology | TQFP-48_7x7mm_P0.5mm | U140 |
| 1 | SN74LVC125APWR Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U142 |
| 2 | SN74AHCT1G125DBVR Texas Instruments | SOT-23-5 | U143, U253 |
| 1 | TLV75533PDBVR Texas Instruments | SOT-23-5 | U144 |
| 4 | TPD2E2U06DRLR Texas Instruments | SOT-553 | U146, U172, U173, U195 |
| 4 | SN74HC86DR 74HC86 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U149, U150, U151, U152 |
| 2 | SN74HC32DR 74HC32 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U155, U156 |
| 9 | C131692 74HC151 Nexperia | SOIC-16_3.9x9.9mm_P1.27mm | U157, U158, U159, U160, U161, U162, U163, U164 +1 |
| 1 | C5603 74HC139D,653 Nexperia | SOIC-16_3.9x9.9mm_P1.27mm | U167 |
| 8 | SN74AHCT541PWR Texas Instruments | TSSOP-20_4.4x6.5mm_P0.65mm | U168, U178, U181, U182, U183, U184, U185, U186 |
| 1 | PCA9306DCTR Texas Instruments | SSOP-8_2.95x2.8mm_P0.65mm | U170 |
| 1 | SN74AHCT1G08DBVR Texas Instruments | SOT-23-5 | U177 |
| 2 | SN74AHCT125DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U180, U252 |
| 1 | SN74AHCT74QDRQ1 Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U189 |
| 1 | SN74LVC1G3157DBVR Texas Instruments | SOT-23-6 | U190 |
| 1 | TUSB320LAIRWBR Texas Instruments | Texas_RWB0012A_X2QFN-12_1.6x1.6mm_P0.4mm | U191 |
| 1 | TPS2552DBVR-1 Texas Instruments | SOT-23-6 | U192 |
| 1 | CH9350L Nanjing Qinheng Microelectronics (WCH) | LQFP-48_7x7mm_P0.5mm | U193 |
| 1 | C503437 74LVC1G157GV,125 Nexperia | TSOP-6_1.65x3.05mm_P0.95mm | U197 |
| 1 | SN74LVC1G07DBVR Texas Instruments | SOT-23-5 | U250 |
| 4 | AO3401A Alpha & Omega Semiconductor | SOT-23 | Q1, Q2, Q3, Q4 |
| 2 | C65189 2N7002,215 Nexperia | SOT-23 | Q181, Q182 |
| 1 | SX5M1.8432A10F20TNN 1.8432MHz OSC Shenzhen SCTF Electronics | SCTF_SX5M_SMD5032-4P | X1 |
| 2 | C265102 S4B-PH-SM4-TB(LF)(SN) JST | JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J1, J6 |
| 2 | USB4105-GF-A-120 GCT | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2, J7 |
| 1 | DM3AT-SF-PEJM5 Hirose Electric | microSD_HC_Hirose_DM3AT-SF-PEJM5 | J3 |
| 1 | TSM-104-01-T-SV Samtec | PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left | J4 |
| 1 | C265453 S7B-PH-SM4-TB(LF)(SN) JST | JST_PH_S7B-PH-SM4-TB_1x07-1MP_P2.00mm_Horizontal | J5 |
| 1 | XL-SB2401SRWC XINGLIGHT | XINGLIGHT_XL-SB2401SRWC | DS1 |
| 1 | SKRPACE010 SKRPACE010 STEP Alps Alpine | SW_SPST_TL3342 | SW1 |
| 1 | JS102011SAQN RUN/STEP C&K | SW_SPDT_CK_JS102011SAQN | SW2 |
| 1 | JS102011SAQN UNSIGNED/SIGNED C&K | SW_SPDT_CK_JS102011SAQN | SW3 |
| 1 | SKRPACE010 SKRPACE010 RESET Alps Alpine | SW_SPST_TL3342 | SW4 |
| 1 | JS102011SAQN OLED PROFILE C&K | SW_SPDT_CK_JS102011SAQN | SW5 |
| 1 | JS203011SCQN CPU SPEED C&K | SW_SPST_TL3342 | SW6 |
| 1 | JS202011SCQN PC / STANDALONE C&K | SW_SPST_TL3342 | SW7 |
| 1 | 1N4148W-7-F Diodes Incorporated | D_SOD-123 | D180 |
| 10 | LTST-C193TBKT-5A #4c8dff Lite-On | LED_0805_2012Metric | D200, D201, D268, D269, D270, D271, D272, D273 +2 |
| 16 | #34c759 | LED_0805_2012Metric | D202, D203, D204, D205, D206, D207, D208, D209 +8 |
| 16 | #ff453a | LED_0805_2012Metric | D216, D217, D218, D219, D220, D221, D222, D223 +8 |
| 30 | #ffd60a | LED_0805_2012Metric | D232, D233, D234, D235, D236, D237, D238, D239 +22 |
| 4 | LTST-C193TGKT-5A #34c759 Lite-On | LED_0805_2012Metric | D240, D241, D242, D243 |
| 8 | #4c8dff | LED_0805_2012Metric | D258, D259, D260, D261, D262, D263, D264, D265 |
| 1 | WPN4020H1R5MT Sunlord | Sunlord_WPN4020H | L1 |
| 166 | CL10B104KB8NNNC 100nF Samsung Electro-Mechanics | C_0805_2012Metric | C3, C5, C6, C8, C10, C11, C12, C24 +158 |
| 2 | T491B476K010AT 47uF KEMET | C_0805_2012Metric | C4, C21 |
| 2 | CL10A475KP8NNNC 4.7uF Samsung Electro-Mechanics | C_0805_2012Metric | C7, C9 |
| 5 | GRM21BR61E106KA73L 10uF/25V Murata Electronics | C_0805_2012Metric | C13, C14, C15, C19, C705 |
| 3 | CL21A226MOQNNNE 22uF/16V Samsung Electro-Mechanics | C_0805_2012Metric | C16, C17, C18 |
| 1 | 0805B106K100CT 10uF Walsin | C_0805_2012Metric | C20 |
| 3 | CL10B105KA8NNNC 1uF Samsung Electro-Mechanics | C_0805_2012Metric | C22, C23, C171 |
| 3 | CL10C101JB8NNNC 100pF Samsung Electro-Mechanics | C_0805_2012Metric | C173, C180, C181 |
| 1 | 220UF/16V 220uF/16V SamYoung Electronics | C_0805_2012Metric | C700 |
| 17 | RC0603FR-0710KL 10K Yageo | R_0805_2012Metric | R3, R4, R5, R14, R15, R16, R20, R21 +9 |
| 2 | RC0603FR-075K1L 5.1K Yageo | R_0805_2012Metric | R6, R7 |
| 1 | RC0603FR-0762KL 62K Yageo | R_0805_2012Metric | R8 |
| 1 | RC0603JR-070RL 0R Yageo | R_0805_2012Metric | R9 |
| 1 | 0R DNP | R_0805_2012Metric | R10 |
| 1 | RC0603FR-0722K1L 22.1K Yageo | R_0805_2012Metric | R11 |
| 1 | RC0603FR-0747K5L 47.5K Yageo | R_0805_2012Metric | R12 |
| 11 | RC0603FR-071KL 1K Yageo | R_0805_2012Metric | R13, R34, R35, R36, R37, R38, R39, R40 +3 |
| 11 | RC0603FR-07100KL 100K Yageo | R_0805_2012Metric | R17, R42, R43, R44, R45, R180, R700, R702 +3 |
| 50 | 0402WGF330JTCE 33R UNI-ROYAL | R_0805_2012Metric | R25, R26, R27, R189, R190, R191, R192, R600 +42 |
| 1 | RC0603FR-07330RL 330R Yageo | R_0805_2012Metric | R28 |
| 1 | RC0603FR-07180KL 180K Yageo | R_0805_2012Metric | R170 |
| 2 | RC0603FR-07200KL 200K Yageo | R_0805_2012Metric | R171, R711 |
| 6 | RC0603FR-074K7L 4.7K Yageo | R_0805_2012Metric | R172, R173, R174, R175, R710, R714 |
| 1 | CR0603-FX-1501ELF 1.5K Bourns | R_0805_2012Metric | R181 |
| 1 | RC0603FR-073K16L 3.16K Yageo | R_0805_2012Metric | R182 |
| 14 | RC0603FR-073K3L 3.3K Yageo | R_0805_2012Metric | R200, R201, R240, R241, R242, R243, R268, R269 +6 |
| 70 | 3.3K | R_0805_2012Metric | R202, R203, R204, R205, R206, R207, R208, R209 +62 |
| 2 | 0603WAF1000T5E 100R UNI-ROYAL | R_0805_2012Metric | R701, R717 |
| 1 | RC0603FR-0720K5L 20.5K Yageo | R_0805_2012Metric | R703 |
| 1 | 0603WAF4532T5E 45.3K UNI-ROYAL | R_0805_2012Metric | R712 |
| 1 | RC0603FR-07887KL 887K Yageo | R_0805_2012Metric | R719 |
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