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STD SC126 v1.0 Z180 Motherboard for RC2014

Project Status: Ongoing

License: Public Domain

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Creation time： 2019-05-05 13:31:41
Update time： 2022-04-06 03:53:37
Description
SC126 v1.0 (www.scc.me.uk) Z180 SBC / motherboard for RomWBW. Supports SD cards for storage and many modules designed for RC2014. Documentation at [www.scc.me.uk](https://smallcomputercentral.wordpress.com/)
Design Drawing
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BOM
BOM download Purchase Parts
ID Name Designator Footprint Quantity
1 100nF C1,C2,C3,C4,C5,C12,C6,C7,C8,C11,C10,C9,C13,C14 CAP-RAD-2.54MM 14
2 Flash 512k U1,U2 PDIP-32-0.6 2
3 RAM 512k U3 PDIP-32-0.6 1
4 10k R22,R20,R21 AXIAL-0.3 3
5 FLASH #1 select P9 HDR-1X02-A-M-2.54MM 1
6 Write Enable #1 JP1 HDR-1X03-S-M-2.54MM 1
7 Write Enable #2 JP2 HDR-1X03-S-M-2.54MM 1
8 Flash Select JP3 HDR-1X03-S-M-2.54MM 1
9 74AHCT139 U4 PDIP-16 1
10 Z180 CPU U5 PLCC68 1
11 100k R7,R9,R8 RES-0.3 3
12 2k2 R1,R2,R3,R4,R5,R6 RES-0.3 6
13 Oscillator X1 OSC-08 1
14 8x10k RP1 SIL-9 1
15 HDR_1x02_A_M_pretty P4,P7 HDR-1X02-A-M-2.54MM 2
16 HDR_1x06_S_M P15,P16,P12,P13,P11,P1,P2,P3 HDR-1X06-S-M-2.54MM 8
17 Jumper_1x3 JP4 HDR-1X03-S-M-2.54MM 1
18 Serial Port A P5 HDR-1X06-S-M-2.54MM 1
19 Serial Port B P6 HDR-1X06-S-M-2.54MM 1
20 74HCT273 U6,U7 PDIP-20 2
21 74HCT138 U9,U10 PDIP-16 2
22 LED-3MM LED7,LED6,LED5,LED4,LED3,LED2,LED8,LED9 LED-3MM/2.54 8
23 470R R17,R16,R15,R14,R13,R12,R18,R19,R11 AXIAL-0.3 9
24 DS1302 U8 PDIP-08 1
25 Xtal 32.768KHz X2 XTAL 32.768KHZ 1
26 BATT-CR2032 B1 BATT-CR2032 1
27 74HCT125 U11 PDIP-14 1
28 BP80 Section Socket S1 BP80-SOCKET 1
29 POWER J1 DC_BARREL_JACK_PTH_SLOT_HOLE 1
30 POWER LED1 LED-3MM/2.54 1
31 POWER J2 SCREW-TERMINAL-X2 1
32 4k7 R10 AXIAL-0.3 1
33 RESET SW2 TACTILE-PTH-SW 1
34 RESET P8 HDR-1X02-A-M-2.54MM 1
35 100uF C15 CAP-ELEC-RAD-2.54MM 1
36 RC80 Card Socket S2,S3 RC2014-HDR-2X40-S-F-R-2.54MM 2
37 POWER P10 HDR-1X02-A-M-2.54MM 1
38 1nF C16 CAP-RAD-2.54MM 1
39 DS1233-5+ U12 TO92 WIDE 1
40 ON/OFF SW1 SPDT_TOGGLE_SWITCH 1
41 I2C JP5 HDR-2X02-S-M-2.54MM 1

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