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Z80 Single Board Computer V2

3 months ago 166
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V2 of my Z80 SBC project, with the end goal of having color graphics(?) along with a BASIC interpreter based off of NASCOM BASIC. A future revision may include support for CP/M.

Feel free to clone this project. Just be sure to acknowledge me as printed below:

Copyright Jacob Hahn 2019. This documentation describes Open Hardware and is licensed under the CERN OHL v. 1.2. You may redistribute and modify this documentation under the terms of the CERN OHL v.1.2. ( This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v.1.2 for applicable conditions





ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted BOM_Manufacturer Part BOM_Supplier BOM_Supplier Part BOM_Manufacturer
1 Z80 CPU U1 DIP40 1 Z84C0006PEG Digi-Key 269-3892-ND Zilog
2 AS6C62256A U2 DIP28-600 1 AS6C62256A-70PCN Digi-Key 1450-1182-5-ND Alliance Memory, Inc.
3 Z80DART U4 DIP40 1 Z84C4006PEG Future Electronics 3499407 Zilog
4 MAX202 U5 DIP16 1 MAX202CPE+ Digi-Key MAX202CPE+-ND Maxim Integrated
5 1.8432MHz X2 OSCILLATOR_DIP-8 1 ECS-2100A-018 Digi-Key XC231-ND ECS Inc.
6 6.0000MHz X1 OSCILLATOR_DIP-8 1 ECS-2200BX-060 Digi-Key XC1180-ND ECS Inc.
7 AT28C256 U3 DIP28-600 1 AT28C256-15PU Digi-Key AT28C256-15PU-ND Microchip Technology
8 74LS139 U7 DIP16 1 SN74LS139AN Digi-Key 296-1640-5-ND Texas Instruments
9 74LS138 U6 DIP16 1 SN74LS138N Digi-Key 296-1639-5-ND Texas Instruments
10 1k R1,R2,R3,R4,R5,R6,R9,R10,R11 0805 9 RNCP0805FTD1K00 Digi-Key RNCP0805FTD1K00CT-ND Stackpole Electronics Inc
11 XM3C-0922-502 DSUB1 DB9-G-DC 1 A-DS 09 A/KG-T2S Digi-Key AE10968-ND Assmann WSW Components
12 100nF C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C13,C14,C12,C15 0805 15 CC0805KRX7R9BB104 Digi-Key 311-1140-1-ND Yageo
13 TS-1102-5016 SW1 KEY-6.0*6.0-2 1 1825910-6 Digi-Key 450-1650-ND TE Connectivity ALCOSWITCH Switches
14 PWR DC1 DC-005-2.5A-2.0 1 PJ-202A Digi-Key CP-202A-ND CUI Inc.
15 LED-3MM RED LED1,LED2 LED-3MM/2.54 2 SSL-LX3054ID Digi-Key 67-2239-ND Lumex Opto/Components Inc.
16 200 R7,R8 0805 2 RNCP0805FTD200R Digi-Key RNCP0805FTD200RCT-ND Stackpole Electronics Inc
17 Z80PIO U8 DIP40 1 Z84C2006PEG Mouser 692-Z84C2006PEG ZiLOG
18 ULN2803A U9 DIP18 1 ULN2803A Digi-Key 497-2356-5-ND STMicroelectronics
19 Z80CTC-P U10 DIP28-600 1 Z84C3006PEG Digi-Key 269-3910-ND Zilog
20 Header-Male-2.54_2x20 P1 HDR-20X2/2.54 1 67996-140HLF Digi-Key 609-4925-ND Amphenol ICC (FCI)
21 10uF C16 0805 1 CL21A106KPFNNNG Digi-Key 1276-6456-1-ND Samsung Electro-Mechanics
22 HDR2X5 P2,P3 HDR2X5 2
23 CON_HEADER_1X06 P4 M1X6 1


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