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STD z80-sbc

z80-sbc

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Public Domain

License: Public Domain

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Update time: 2022-11-08 18:23:57
Creation time: 2022-01-21 11:14:34
Description

Description

This an improved version of CP/M-based computer developed by Grant Searle (http://www.searle.wales/)
Added bank switching feature, USB to serial interface.

Firmware https://github.com/wwarthen/RomWBW can be adapted to it.

 

Design Drawing

Design Drawing

schematic diagram
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ID Name Designator Footprint Quantity
1 27pF C1,C2 0805 2
2 100nF C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C15 0805 13
3 0.01u C16 0805 1
4 22pF C17,C18 0805 2
5 10u C19 CAP-D3.0×F1.5 1
6 1N4148W D1,D2 SOD-323-F 2
7 nSMD050 F1 1206 1
8 PIO A J1 HDR-M-2.54_2X6 1
9 PIO B J2 HDR-M-2.54_2X6 1
10 HDR-M-2.54_1x2 J3 HDR-M-2.54_1X2 1
11 M03X2 JP1 2X3 1
12 HDR-M-2.54_1x3 JP2 HDR-M-2.54_1X3 1
13 EN_WR JP3 HDR-M-2.54_1X2 1
14 CTC JP4 HDR-M-2.54_2X6 1
15 SIO CLK JP5 HDR-M-2.54_1X3 1
16 User Key PA1 KEY1 KEY-TH_4P-L6.0-W6.0-P4.50-LS6.5 1
17 COLD RESET KEY2 KEY-TH_4P-L6.0-W6.0-P4.50-LS6.5 1
18 WARM RESET KEY3 KEY-TH_4P-L6.0-W6.0-P4.50-LS6.5 1
19 User LED PA0 LED1 LED-1206 1
20 E6C1206YG LED_HDD,LED_PWR LED-1206 2
21 IDE CONNECTOR P1 HDR-IDC-2.54-2X20P 1
22 4.7k R1,R2,R3,R4,R11 0805 5
23 1k R5,R6,R7,R9 0805 4
24 1M R8 0805 1
25 1.5k R12,R13 0805 2
26 4k7 R14,R16 R0805 2
27 2k2 R15 R0805 1
28 1k R17,R18 R0805 2
29 47k R19 0805 1
30 4.7k R21 R0805 1
31 10k R23 R0805 1
32 10 R24 R0805 1
33 628512 U1 DIP32 1
34 Z84C0008PEC CPU U2 DIP40 1
35 74LS138 U6 DIP16 1
36 Z80SIO-2 U8 DIP40 1
37 Z84C2008PEG PIO U9 DIP40 1
38 Z84C3008-PEC CTC U10 DIP28-600 1
39 CH340G U11 SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL 1
40 74LS670 U12,U14 DIP16 2
41 4k7 x 8 U13 RESISTORARRAY9PIN 1
42 39SF040 U16 DIP32 1
43 Female header 1*6p UART2 HDR-6X1/2.54 1
44 Mini USB Female USB1 MINI-USB-TH_USB-MINI-2 1
45 7.3728MHz X1 QUARZ 1
46 12MHz X2 QUARZ 1
47 74LS00 U3 DIP14 1
48 74HCT00 U4 DIP14 1
49 74LS32 U5,U7 DIP14 2

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