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bbc z80
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BBC Z80 cpm

4 years ago 1775
  • Description
  • Documents
  • BOM
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Description

Z80 MiniTube is a Z80 secondary CPU card for BBC micro machines. It is a minimalist version of the Tube with it own Tube code. The Z80 version has up-to 512K RAM and can run any CP/M program version 2.X and 3.X. BIOS, BDOS and CCP can be loaded from ROM or disks. It support the same disk systems that the BBC micro. The graphic library GSX has been added for programs that support this.

Documents

Z80 BBC

Z80small

Z80 cpm

BOM

ID Name Designator Footprint Quantity BOM_Manufacturer Part
1 INT6502 JP3 1X02 1 ?
2 Z80CPU U2 DIP40 1 Z84C0020PEG
3 74374-2-Z80 U9 DIP20 1 ?
4 74374 U11 DIP20 1 ?
5 7474-2-INT U1 DIP14 1 ?
6 7474-2-BUSY U3 DIP14 1 ?
7 74125 U4,U13 DIP14 2 ?
8 AT29C256 U5 DIP28-600 1 AT29C256
9 1u C1,C2,C3,C4,C5,C6,C7,C8,C9 C1 9 ?
10 7408 U8 DIP14 1 ?
11 10k R1,R2,R3,R6,R7,R10 R3 6 ?
12 74174 U12 DIP16 1 ?
13 7402 U7 DIP14 1 74HCT02N
14 INTZ80 JP2 1X02 1 ?
15 74139 U10 DIP16 1 ?
16 CNF1 JP4 1X02 1 ?
17 CNF2 JP5 1X02 1 ?
18 LED LED1,LED2,LED3,LED4 LED3MM 4 ?
19 09 18 140 9621 P2 9181409621 1 ?
20 330 R4,R5,R8,R9 R3 4 ?
21 8DIP_Oscillator U14 DIP8 1 ?
22 AS6C4008 U15 DIP32 1 AS6C4008
23 For probe GND 1X02 1 ?

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