MSAP-2-production source
MSAP-2-production source is an open source AVR/Arduino PCB design by mehrantsi: a 6-layer, 300 × 248.8 mm board with 375 components (85 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
This directory is the manufacturing target for the full-SMD, six-layer MSAP-2 rev.C board. It is separate from the unrouted, module-grouped rev.A development exports.
The production generator is fail-closed: source-only output is clearly labeled, and prototype Gerbers are generated only after the routed board passes KiCad with zero DRC violations and zero unconnected items. The resulting assembly bundle is explicitly PROTOTYPE material. When its release metrics record firstArticleOrder.inputsReady: true, it may be uploaded only after explicit user approval as an unqualified two-board first…
Built around
Parts list
375 components, 85 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C7421276 SA555DR Toshiba | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | SN74AHCT14PWR SN74HCT14DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | SN74AHCT157PWR SN74HC157DR Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | SN74AHCT08DR SN74HC08DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 12 | SN74HC161DR Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U5, U6, U7, U9, U47, U48, U49, U56 +4 |
| 7 | SN74HC245DWR Texas Instruments | SOIC-20W_7.5x12.8mm_P1.27mm | U8, U14, U15, U19, U115, U122, U124 |
| 9 | CD74HC173M96 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U10, U11, U23, U24, U25, U30, U31, U32 +1 |
| 4 | SN74HC193DR Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U12, U13, U16, U17 |
| 4 | C5979 74HCT245D,653 Nexperia | SOIC-20W_7.5x12.8mm_P1.27mm | U22, U34, U54, U141 |
| 7 | SN74HC157DR 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 AT28C256-15SU Connfly Electronic Co., Ltd. | SOIC-28W_7.5x17.9mm_P1.27mm | U36, U41, U42, U43, U44, U62 |
| 6 | SN74HC138DR Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U37, U46, U51, U58, U69, U90 |
| 4 | SN74HC273DWR Texas Instruments | SOIC-20W_7.5x12.8mm_P1.27mm | U40, U52, U55, U60 |
| 1 | C7421276 SN74HC161DR Toshiba | SOIC-16_3.9x9.9mm_P1.27mm | U45 |
| 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 |
| 3 | SN74AHCT00DR SN74HC00DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U66, U67, U68 |
| 8 | C53334 74HC153D,653 Nexperia | SOIC-16_3.9x9.9mm_P1.27mm | U70, U71, U72, U73, U74, U75, U76, U120 |
Show 65 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | CD74HC283M96 Texas Instruments | SOIC-16_3.9x9.9mm_P1.27mm | U77, U78, U79, U80, U147, U148 |
| 2 | SN74HC04DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U93, U127 |
| 5 | SN74HC08DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U95, U118, U126, U153, U154 |
| 2 | SN74HC00DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U96, U125 |
| 3 | SN74HC74DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U97, U100, U135 |
| 1 | TPS630701RNMR Texas Instruments | Texas_RNM0015A_VQFN-HR-15_2.5x3mm | U101 |
| 1 | TPS2553DBVR Texas Instruments | SOT-23-6 | U102 |
| 1 | CP2102N-A02-GQFN20R Skyworks Solutions / Silicon Labs | SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U103 |
| 1 | USBLC6-2SC6 STMicroelectronics | SOT-23-6 | U104 |
| 1 | MC74VHC1GT125DBVT1G SN74AHCT1G125DBVR onsemi | SOT-23-5 | U105 |
| 1 | SN74LVC1G125DBVR Texas Instruments | SOT-23-5 | U106 |
| 1 | SN74LVC1G17DBVR 74LVC1G17GV,125 Texas Instruments | SOT-23-5 | U107 |
| 4 | C131089 74HCT541D,653 Nexperia | SOIC-20W_7.5x12.8mm_P1.27mm | U130, U131, U132, U133 |
| 1 | SN74AHCT32DR SN74HC32DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U136 |
| 1 | ATMEGA4809-AFR Microchip Technology | TQFP-48_7x7mm_P0.5mm | U140 |
| 1 | SN74LVC125APWR Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U142 |
| 1 | SN74AHCT1G125DBVR Texas Instruments | SOT-23-5 | U143 |
| 1 | TLV75533PDBVR Texas Instruments | SOT-23-5 | U144 |
| 1 | TPD2E2U06DRLR Texas Instruments | SOT-553 | U146 |
| 4 | SN74HC86DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U149, U150, U151, U152 |
| 2 | SN74HC32DR Texas Instruments | SOIC-14_3.9x8.7mm_P1.27mm | U155, U156 |
| 9 | C131692 74HC151D,653 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 |
| 1 | SN74AHCT541PWR Texas Instruments | TSSOP-20_4.4x6.5mm_P0.65mm | U168 |
| 4 | AO3401A Alpha & Omega Semiconductor | SOT-23 | Q1, Q2, Q3, Q4 |
| 1 | SX5M1.8432A10F20TNN Shenzhen SCTF Electronics | SCTF_SX5M_SMD5032-4P | X1 |
| 1 | C265102 S4B-PH-SM4-TB(LF)(SN) JST | JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J1 |
| 1 | USB4105-GF-A-120 GCT | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2 |
| 1 | DM3AT-SF-PEJM5 Hirose Electric | microSD_HC_Hirose_DM3AT-SF-PEJM5 | J3 |
| 1 | TSM-104-01-T-SV Samtec | Samtec_TSM-104-01-T-SV | J4 |
| 1 | XL-SB2401SRWC XINGLIGHT | XINGLIGHT_XL-SB2401SRWC | DS1 |
| 1 | SKRPACE010 SKRPACE010 STEP Alps Alpine | Alps_SKRPACE010 | 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 | Alps_SKRPACE010 | SW4 |
| 8 | LTST-C193TBKT-5A #4c8dff Lite-On | LED_0603_1608Metric | D200, D201, D268, D269, D270, D271, D272, D273 |
| 1 | #34c759 | LED_0603_1608Metric | D239 |
| 3 | LTST-C193TGKT-5A #34c759 Lite-On | LED_0603_1608Metric | D240, D241, D242 |
| 2 | #4c8dff | LED_0603_1608Metric | D266, D267 |
| 1 | WPN4020H1R5MT Sunlord | Sunlord_WPN4020H | L1 |
| 1 | 1nF | C_0603_1608Metric | C1 |
| 1 | 10nF | C_0603_1608Metric | C2 |
| 138 | CL10B104KB8NNNC 100nF Samsung Electro-Mechanics | C_0603_1608Metric | C3, C5, C6, C8, C10, C11, C12, C24 +130 |
| 2 | T491B476K010AT 47uF KEMET | CP_EIA-3528-21_Kemet-B | C4, C21 |
| 2 | CL10A475KP8NNNC 4.7uF Samsung Electro-Mechanics | C_0603_1608Metric | C7, C9 |
| 4 | GRM21BR61E106KA73L 10uF/25V Murata Electronics | C_0805_2012Metric | C13, C14, C15, C19 |
| 3 | CL21A226MOQNNNE 22uF/16V Samsung Electro-Mechanics | C_0805_2012Metric | C16, C17, C18 |
| 1 | 0805B106K100CT 10uF Walsin | C_0805_2012Metric | C20 |
| 2 | CL10B105KA8NNNC 1uF Samsung Electro-Mechanics | C_0603_1608Metric | C22, C23 |
| 1 | 3.3K | R_0603_1608Metric | R1 |
| 1 | 1K | R_0603_1608Metric | R2 |
| 16 | RC0603FR-0710KL 10K Yageo | R_0603_1608Metric | R3, R4, R5, R14, R15, R16, R20, R21 +8 |
| 2 | RC0603FR-075K1L 5.1K Yageo | R_0603_1608Metric | R6, R7 |
| 1 | RC0603FR-0762KL 62K Yageo | R_0603_1608Metric | R8 |
| 1 | RC0603JR-070RL 0R Yageo | R_0603_1608Metric | R9 |
| 1 | 0R DNP | R_0603_1608Metric | R10 |
| 1 | RC0603FR-0722K1L 22.1K Yageo | R_0603_1608Metric | R11 |
| 1 | RC0603FR-0747K5L 47.5K Yageo | R_0603_1608Metric | R12 |
| 1 | RC0603FR-071KL 1K Yageo | R_0603_1608Metric | R13 |
| 5 | RC0603FR-07100KL 100K Yageo | R_0603_1608Metric | R17, R42, R43, R44, R45 |
| 3 | 0402WGF330JTCE 33R UNI-ROYAL | R_0603_1608Metric | R25, R26, R27 |
| 1 | RC0603FR-07330RL 330R Yageo | R_0603_1608Metric | R28 |
| 8 | RC0603FR-071KL 470R Yageo | R_0603_1608Metric | R34, R35, R36, R37, R38, R39, R40, R41 |
| 11 | RC0603FR-073K3L 1.5K Yageo | R_0603_1608Metric | R200, R201, R240, R241, R242, R268, R269, R270 +3 |
| 3 | 1.5K | R_0603_1608Metric | R239, R266, R267 |
More boards in MSAP-2
AVR/ArduinoMSAP-2 rev.A SMD
178 × 711 mm658 parts2LMIT13
AVR/ArduinoMSAP-2 rev.A
240 × 1056 mm658 parts2LMIT13
AVR/ArduinoPre cpl coordinate fix v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoPre j5-model alignment route v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoPre current source usb keepout repair v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoMSAP-2-production
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoPre connector model normalization v1
300 × 248.8 mm520 parts6LMIT13
AVR/ArduinoMSAP-2-production routed
300 × 248.8 mm520 parts6LMIT13
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