Internal sdcard interface
About the Internal sdcard interface PCB
Internal sdcard interface is an open source PCB design by ifilot, published on GitHub. It is a 2-layer board measuring 219 × 88 mm, with 77 components from 46 distinct parts.
Other key parts include the CY62128ELL-45SXI, 74HC00, 74HC74, 74HC163 and 74HC138. By type, the board carries 32 capacitors, 28 ICs, 7 resistors, 5 diodes, 4 connectors and 1 crystal.
From the project
SD-card cartridge for the P2000T
This folder contains the PCBs for the SLOT2 SD-card cartridge and also for a SD-card interface prototype PCB. The latter is only used for development purposes and can be ignored if one is solely interested in building a SLOT2 cartridge.
1 x CY62128ELL-45SXI 3 x 74HC00 2 x 74HC74 1 x 74HC163 2 x 74HC138 1 x 74HC123 2 x 74HC273 2 x 74HC32 1 x HC165 1 x HC595 1 x SST39SF010 1 x 74HC02 1 x 74HC85 1 x 16MHz crystal oscillator
Main components on the Internal sdcard interface
Internal sdcard interface bill of materials (BOM)
77 components, 46 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CY62128ELL-45SXI 74HC04 | DIP-14_W7.62mm_Socket | U1 |
| 2 | 74HC00 CY62256-70PC | DIP-28_W15.24mm_Socket | U2, U4 |
| 2 | 74HC74 74HC00 | DIP-14_W7.62mm_Socket | U3, U18 |
| 1 | 74HC163 74HC74 | DIP-14_W7.62mm_Socket | U5 |
| 1 | 74HC138 74HC74 | DIP-14_W7.62mm_Socket | U6 |
| 1 | 74HC123 74HC32 | DIP-14_W7.62mm_Socket | U7 |
| 1 | 74HC273 74HC688 | DIP-20_W7.62mm_Socket | U8 |
| 1 | 74HC32 | DIP-14_W7.62mm_Socket | U9 |
| 1 | 74HC32 74HC173 | DIP-16_W7.62mm_Socket | U10 |
| 1 | 74HC273 74HC245 | DIP-20_W7.62mm_Socket | U11 |
| 1 | 74HC165 74HC157 | DIP-16_W7.62mm_Socket | U12 |
| 1 | 74HC138 74HC85 | DIP-16_W7.62mm_Socket | U17 |
| 1 | 74HC02 74HC00 | DIP-14_W7.62mm_Socket | U19 |
| 1 | 74HC85 74HC02 | DIP-14_W7.62mm_Socket | U20 |
| 1 | 74LVC125 74HC123 | DIP-16_W7.62mm_Socket | U21 |
| 1 | 74HC163 | DIP-16_W7.62mm_Socket | U23 |
| 2 | 74HC138 | DIP-16_W7.62mm_Socket | U24, U25 |
| 1 | 74HC32 | DIP-14_W7.62mm_Socket | U26 |
| 1 | 74HC00 | DIP-14_W7.62mm_Socket | U27 |
| 1 | 74HC165 | DIP-16_W7.62mm_Socket | U29 |
Show 26 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC595 | DIP-16_W7.62mm_Socket | U30 |
| 2 | 74HC273 | DIP-20_W7.62mm_Socket | U31, U32 |
| 1 | SST39SF010 | PLCC-32_THT-Socket | U33 |
| 1 | CY62128ELL-45SXI | SSOP-32_11.305x20.495mm_P1.27mm | U34 |
| 1 | 16MHz | Oscillator_DIP-14 | X1 |
| 1 | MICRO_SD_CARD_DET1 EXPANSION BOARD | IDC-Header_2x20_P2.54mm_Vertical | J1 |
| 1 | POWER | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | TERMINAL | TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | SDCARD | sdcard-socket | J5 |
| 1 | DIODE | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | SEL | LED_D5.0mm | D3 |
| 1 | ACT | LED_D5.0mm | D4 |
| 1 | READ | LED_D5.0mm | D5 |
| 1 | WRITE | LED_D5.0mm | D6 |
| 14 | 0.1UF 0.1uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C4, C5, C6, C7, C8, C9 +6 |
| 1 | 0.1UF 220uF | CP_Radial_D6.3mm_P2.50mm | C3 |
| 2 | 22PF 0.1uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C20, C21 |
| 1 | 100NF 0.1uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C23 |
| 12 | 0.1uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C24, C25, C26, C27, C28, C29, C30, C31 +4 |
| 2 | 22pF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C37, C38 |
| 1 | 180 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 180 560 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 560 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | 3.3K 0 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
| 2 | 3.3K 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R10 |
| 1 | 3.3K 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
Internal sdcard interface design files
The KiCad project lives in the ifilot/p2000t-sdcard repository on GitHub; these links point at the commit this page was built from.
Internal sdcard interface: common questions
How big is the Internal sdcard interface PCB?
The Internal sdcard interface measures 219 × 88 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Internal sdcard interface?
77 components, from 46 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Internal sdcard interface design files?
From the ifilot/p2000t-sdcard repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Internal sdcard interface design in my own project?
The repository has no license, so all rights stay with ifilot. Use it as a reference, and ask the author before reusing the design.
