# RetroZ SBC S80 ## Description A minimalist single board Z80 retro computer based on the S80 design specifications. This board is developped using the S80 physical specifications. The specifications are not currently available online but I plan to fix that in a future revision. ## Project Details - **Owner:** brainbox - **Created:** 12/23/2024 - **Last Updated:** 12/23/2024 - **Visibility:** Public ## Key Components ### D1 — [151051VS04000](https://www.flux.ai/jecstronic/151051vs04000~yfh.md) - Part Type: LED - Forward Voltage: 2.1V - Datasheet URL: https://www.we-online.com/katalog/datasheet/151051VS04000.pdf - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 151051VS04000 **Pins:** - A - K ### D2 — [151031SS06000](https://www.flux.ai/jecstronic/151031ss06000~1mq.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/151031SS06000.pdf - Forward Voltage: 2.2V - Manufacturer Name: Wurth Electronics - Part Type: LED - Manufacturer Part Number: 151031SS06000 **Pins:** - A - K ### D3 — [151031SS06000](https://www.flux.ai/jecstronic/151031ss06000~1mq.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/151031SS06000.pdf - Manufacturer Part Number: 151031SS06000 - Part Type: LED - Manufacturer Name: Wurth Electronics - Forward Voltage: 2.2V **Pins:** - A - K ### H1 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H10 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H11 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H12 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H2 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H3 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H4 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H5 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H6 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H7 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H8 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### H9 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector **Pins:** - Pin_1 ### IC1 — [ADM803TAKSZ-REEL](https://www.flux.ai/jecstronic/adm803taksz-reel~xte.md) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM803_809_810.pdf - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices Inc. - Manufacturer Part Number: ADM803TAKSZ-REEL **Pins:** - GND [pin 1] - RESET [pin 2] - VCC [pin 3] ### IC2 — [AT28C256-15PU](https://www.flux.ai/jecstronic/at28c256-15pu~3yq.md) - Manufacturer Part Number: AT28C256-15PU - Part Type: Integrated Circuit - Manufacturer Name: Microchip Technology - Datasheet URL: https://www.microchip.com/filehandler/redirect?https://ww1.microchip.com/downloads/en/DeviceDoc/AT28C256-%E2%80%93-Industrial-Grade-256-Kbit-(32,768-x-8)-Paged-Parallel-EEPROM.pdf **Pins:** - ~CE - ~OE - ~WE - A0 - A1 - A10 - A11 - A12 - A13 - A14 - A2 - A3 - A4 - A5 - A6 - A7 - A8 - A9 - GND - I/O0 - I/O1 - I/O2 - I/O3 - I/O4 - I/O5 - I/O6 - I/O7 - VCC ### IC3 — [AS6C62256-55PCN](https://www.flux.ai/jecstronic/as6c62256-55pcn~x6e.md) - Manufacturer Name: Alliance Memory - Part Type: Integrated Circuit - Manufacturer Part Number: AS6C62256-55PCN - Datasheet URL: https://www.mouser.com/datasheet/2/12/AS6C62256_23_March_2016_rev1_2-1288423.pdf **Pins:** - A0 - A1 - A10 - A11 - A12 - A13 - A14 - A2 - A3 - A4 - A5 - A6 - A7 - A8 - A9 - CE# - DQ0 - DQ1 - DQ2 - DQ3 - DQ4 - DQ5 - DQ6 - DQ7 - OE# - VCC - Vss - WE# ### J1 — [Pin Header 02x20 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-02x20-254mm-vertical~e1i.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_19 [pin 19] - Pin_2 [pin 2] - Pin_20 [pin 20] - Pin_21 [pin 21] - Pin_22 [pin 22] - Pin_23 [pin 23] - Pin_24 [pin 24] - Pin_25 [pin 25] - Pin_26 [pin 26] - Pin_27 [pin 27] - Pin_28 [pin 28] - Pin_29 [pin 29] - Pin_3 [pin 3] - Pin_30 [pin 30] - Pin_31 [pin 31] - Pin_32 [pin 32] - Pin_33 [pin 33] - Pin_34 [pin 34] - Pin_35 [pin 35] - Pin_36 [pin 36] - Pin_37 [pin 37] - Pin_38 [pin 38] - Pin_39 [pin 39] - Pin_4 [pin 4] - Pin_40 [pin 40] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J2 — [Pin Header 01x08 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x08-254mm-vertical~4nq.md) - Manufacturer Name: Adafruit Industries LLC - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 85 - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Adafruit%20PDFs/85_Web.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J3 — [Pin Header 01x08 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x08-254mm-vertical~4nq.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Adafruit%20PDFs/85_Web.pdf - Manufacturer Part Number: 85 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Adafruit Industries LLC - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J4 — [Pin Header 02x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-02x05-254mm-vertical~83p.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://drawings-pdf.s3.amazonaws.com/11636.pdf - Manufacturer Name: Sullins Connector Solutions - Part Type: Connector - Manufacturer Part Number: PRPC005DAAN-RC **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J5 — [629105150521](https://www.flux.ai/jecstronic/629105150521~sl.md) - Part Type: USB - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 629105150521 - Datasheet URL: https://www.we-online.com/katalog/datasheet/629105150521.pdf **Pins:** - D- - D+ - GND - ID - Shield - Shield - Shield - Shield - VBUS ### J6 — [Pin Header 02x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-02x04-254mm-vertical~453.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### SW1 — [Dip switch](https://www.flux.ai/jecstronic/dip-switch~soz.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 1 [pin 1] - 2 [pin 2] - 2 [pin 2] ### SW2 — [BD01](https://www.flux.ai/jecstronic/bd01~tx1.md) - Datasheet URL: https://www.ckswitches.com/media/1331/bd.pdf - Manufacturer Part Number: BD01 - Part Type: Switch - Manufacturer Name: C&K **Pins:** - P1 - P2 ### U1 — [NTE74LS32](https://www.flux.ai/jecstronic/nte74ls32~8e6.md) - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.nteinc.com/specs/7400to7499/pdf/nte74LS32.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: NTE74LS32 **Pins:** - 1A - 1B - 1Y - 2A - 2B - 2Y - 3A - 3B - 3Y - 4A - 4B - 4Y - GND - VCC ### U2 — [MM74HCT04N](https://www.flux.ai/jecstronic/mm74hct04n~x5o.md) - Manufacturer Name: onsemi - Datasheet URL: https://octopart.com/datasheet/mm74hct04n-onsemi-84330099 - Part Type: Integrated Circuit - Manufacturer Part Number: MM74HCT04N **Pins:** - A1 [pin 1] - A2 [pin 3] - A3 [pin 5] - A4 [pin 9] - A5 [pin 11] - A6 [pin 13] - GND [pin 7] - VCC [pin 14] - Y1 [pin 2] - Y2 [pin 4] - Y3 [pin 6] - Y4 [pin 8] - Y5 [pin 10] - Y6 [pin 12] ### U3 — [Z80CPU](https://www.flux.ai/jecstronic/z80cpu~dgn.md) - Manufacturer Part Number: Z80CPU - Datasheet URL: https://www.jameco.com/Jameco/Products/ProdDS/35561.pdf - Part Type: Microprocessor - Manufacturer Name: Jameco **Pins:** - ~BUSACK~ - ~BUSRQ~ - ~CLK~ - ~HALT~ - ~INT~ - ~IORQ~ - ~M1~ - ~MREQ~ - ~NMI~ - ~RD~ - ~RESET~ - ~RFSH~ - ~WAIT~ - ~WR~ - A0 - A1 - A10 - A11 - A12 - A13 - A14 - A15 - A2 - A3 - A4 - A5 - A6 - A7 - A8 - A9 - D0 - D1 - D2 - D3 - D4 - D5 - D6 - D7 - GND - VCC ### U4 — [SN74LS138N](https://www.flux.ai/jecstronic/sn74ls138n~aee.md) - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/sdls014/sdls014.pdf - Manufacturer Name: Texas Instruments - Manufacturer Part Number: SN74LS138N **Pins:** - A0 [pin 1] - A1 [pin 2] - A2 [pin 3] - E1 [pin 4] - E2 [pin 5] - E3 [pin 6] - GND [pin 8] - O0 [pin 15] - O1 [pin 14] - O2 [pin 13] - O3 [pin 12] - O4 [pin 11] - O5 [pin 10] - O6 [pin 9] - O7 [pin 7] - VCC [pin 16] ### U5 — [Z84C4010PEG](https://www.flux.ai/jecstronic/z84c4010peg~614.md) - Manufacturer Part Number: Z84C4010PEG - Part Type: Integrated Circuit - Datasheet URL: https://www.mouser.com/datasheet/2/240/zilgs00978_1-2584731.pdf - Manufacturer Name: ZiLOG **Pins:** - 5V [pin 9] - B/A [pin 34] - C/D [pin 33] - CE [pin 35] - CLK [pin 20] - CTSA [pin 18] - CTSB [pin 23] - D0 [pin 40] - D1 [pin 1] - D2 [pin 39] - D3 [pin 2] - D4 [pin 38] - D5 [pin 3] - D6 [pin 37] - D7 [pin 4] - DCDA [pin 19] - DCDB [pin 22] - DTRA [pin 16] - DTRB [pin 25] - GND [pin 31] - IEI [pin 6] - IEO [pin 7] - INT [pin 5] - IORQ [pin 36] - M1 [pin 8] - RD [pin 32] - RESET [pin 21] - RTSA [pin 17] - RTSB [pin 24] - RxCA [pin 13] - RxDA [pin 12] - RxDB [pin 28] - RxTxCB [pin 27] - SYNCA [pin 11] - SYNCB [pin 29] - TxCA [pin 14] - TxDA [pin 15] - TxDB [pin 26] - W/RDYA [pin 10] - W/RDYB [pin 30] ### U6 — [FT230XS-U](https://www.flux.ai/jecstronic/ft230xs-u~qsd.md) - Datasheet URL: https://www.mouser.com/datasheet/2/163/DS_FT230X-5395.pdf - Part Type: Integrated Circuit - Manufacturer Name: FTDI - Manufacturer Part Number: FT230XS-U **Pins:** - ~CTS - ~RESET - ~RTS - 3V3OUT - CBUS0 - CBUS1 - CBUS2 - CBUS3 - GND - GND - RXD - TXD - USBDM - USBDP - VCC - VCCIO ### U7 — [SN74LS92N](https://www.flux.ai/jecstronic/sn74ls92n~lav.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ls92 - Manufacturer Name: Texas Instruments - Manufacturer Part Number: SN74LS92N **Pins:** - CP0 [pin 14] - CP1..3 [pin 1] - GND [pin 10] - Q0 [pin 12] - Q1 [pin 11] - Q2 [pin 9] - Q3 [pin 8] - R0(1) [pin 6] - R0(2) [pin 7] - VCC [pin 5] ### Y1 — [ECS-73-20-5PX-TR](https://www.flux.ai/jecstronic/ecs-73-20-5px-tr~5cs.md) - Datasheet URL: https://ecsxtal.com/store/pdf/csm-7x.pdf - Part Type: Oscillator - Manufacturer Name: ECS Inc. - Frequency: 7.3728MHz - Manufacturer Part Number: ECS-73-20-5PX-TR **Pins:** - P1 - P2 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/brainbox/retroz-sbc-s80~08](https://www.flux.ai/brainbox/retroz-sbc-s80~08).* --- *Generated from [https://www.flux.ai/brainbox/retroz-sbc-s80~08](https://www.flux.ai/brainbox/retroz-sbc-s80~08)*