SAO CORE4
SAO CORE4 is an open source PCB design by ageppert: a 2-layer, 50.8 × 63.5 mm board with 70 components (30 distinct parts). It is built around the SGM2007-3.3XN5/TR, C7955, SN74HC02DR, C506653.
A Nibble of Core Memory
Follow this project at: https://hackaday.io/project/197235-sao-core4-a-nibble-of-core-memory-with-i2c
Hardware Version 0.2.0 - Work in progres - reducing board size - add button - simplify.
Hardware Version 0.1.1 hand reworked prototype, simplified and re-routed row drive transistor signals to simplify firmware development. This is the version that is currently the functional prototype. These changes will be in 0.2.0.
Built around
Parts list
70 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SGM2007-3.3XN5/TR SSP9193-33M5R | SOT-23-5 | U7 |
| 1 | C7955 LM393 | SOIC-8_W3.9mm | U9 |
| 1 | SN74HC02DR | SOIC-14_3.9x8.7mm_P1.27mm | U10 |
| 1 | C506653 MCP23017_SS | SSOP-28_5.3x10.2mm_P0.65mm | U11 |
| 5 | MMBT4403LT1G ON Semiconductor | SOT-23-3 | Q1, Q3, Q5, Q13, Q17 |
| 5 | MMBT4401LT1G ON Semiconductor | SOT-23-3 | Q2, Q4, Q6, Q14, Q18 |
| 1 | C20917 Q_NMOS_DGS_AO3400A | SOT-23-3 | Q21 |
| 1 | SL3401A-TP SL3401A Micro Commercial Co | SOT-23-3 | Q22 |
| 2 | SFH11-NBPC-D03-ST-BK SAO_conn_SFH11-NBPC-D03-ST-BK | Badgelife-SAOv169-BADGE-2x3 | X1, X2 |
| 1 | C160404 QWIIC | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | X9 |
| 1 | Core_Memory_2x2_Matrix_Front_Facing | core_4_6.75mm_square_front_facing | CM1 |
| 1 | CORE_CURR_MON | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP3 |
| 1 | 3V3_CUR_MON | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP17 |
| 1 | GPB6 | TestPoint_THTPad_D1.5mm_Drill1.0mm | TP6 |
| 1 | GPB7 | TestPoint_THTPad_D1.5mm_Drill1.0mm | TP7 |
| 4 | XL-3216UOC-FB LED XINGLIGHT | LED_1206_3216Metric_RevMnt_Hole1.8x2.4mm_custom | D1, D2, D3, D4 |
| 3 | C28233 0.1uF | C_0805_2012Metric | C2, C17, C19 |
| 2 | C28323 1uF | C_0805_2012Metric | C10, C12 |
| 1 | C1710 0.01uF | C_0805_2012Metric | C11 |
| 3 | C412252 220uF | C_1206_3216Metric | C13, C14, C15 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C17024 10uF | C_0805_2012Metric | C18 |
| 11 | C17710 470 | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R13, R14 +3 |
| 2 | C17830 8R2-5% | R_0805_2012Metric | R7, R21 |
| 2 | C17673 4K7 | R_0805_2012Metric | R27, R44 |
| 4 | C17379 1K2 | R_0805_2012Metric | R30, R31, R54, R55 |
| 2 | C17477 0 | R_0805_2012Metric | R32, R33 |
| 3 | C4310 1K5-1% | R_0805_2012Metric | R47, R50, R53 |
| 2 | C17398 1K8-1% | R_0805_2012Metric | R48, R51 |
| 2 | C17430 11-1% | R_0805_2012Metric | R49, R52 |
| 4 | C17437 120 | R_0805_2012Metric | R60, R61, R62, R63 |