HardLabs

Z80DUART2

lynchaj·nhyodyne·Z80DUART2/Z80DUART2.kicad_pcb

Z80DUART2 PCB layout, top view — open source board by lynchaj
Simulate this board

About the Z80DUART2 PCB

Z80DUART2 is an open source PCB design by lynchaj, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 70 components from 36 distinct parts.

Other key parts include the 74LS244, 74LS245, 74LS08, 74LS688 and 74LS06. By type, the board carries 22 capacitors, 16 resistors, 11 connectors, 10 ICs, 6 diodes and 2 switches.

It belongs with the retro computing designs in this gallery.

From the project

Modular Backplane Computer

Uses Texas Instruments TL16C2552FN Asynchronous Communication Adapter (ACE) derivative Dual Universal Asynchronous Receiver Transmitter (UART)

44 Pin PLCC format TL16C2552F or compatible

Two TTL level serial port for USB adapters with optional power supplies

External experimental connector with spare GPIO pins

JP1 is connector for External Recovery Button (on-momentary close). Do not jumper, default is none

Main components on the Z80DUART2

74LS24474LS24574LS0874LS68874LS06TL16C2552FNMAX232UART CLK

Z80DUART2 bill of materials (BOM)

70 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
74LS244
U1, U3
1
74LS245
U2
1
74LS08
U4
1
74LS688
U6
1
74LS06
U7
1
TL16C2552FN
U8
2
MAX232
U9, U11
1
UART CLK
U10
1
DUART_CFG
J1
1
TTL SERIAL
J4
1
EXT DMA
J5
1
TTL PWRA
J7
1
TTL PWRB
J11
1
EXPERIMENT
J13
1
SPARES
P1
1
Z80 BUS BACKPLANE
P2
1
DAISY CHAIN
P3
1
RS-232 B
P4
1
RS-232 A
P5
1
EXT RECOVERY
JP1
Show 16 more
QtyPartRefs
1
10K
RR1
1
IO PORT ADDR
SW1
1
RECOVERY
SW2
1
TXRDYB
TP1
5
LED
D1, D2, D3, D4, D5
1
1N4148
D6
9
0.1u
C1, C2, C3, C4, C5, C6, C7, C8 +1
5
10u
C10, C11, C16, C17, C22
8
1u
C12, C13, C14, C15, C18, C19, C20, C21
7
470
R1, R2, R4, R5, R6, R7, R12
2
4700
R3, R11
1
10K
R8
1
10
R9
2
1K
R10, R14
1
0
R13
2
22K
R15, R16

Z80DUART2 design files

The KiCad project lives in the lynchaj/nhyodyne repository on GitHub; these links point at the commit this page was built from.

Z80DUART2: common questions

How big is the Z80DUART2 PCB?

The Z80DUART2 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Z80DUART2?

70 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Z80DUART2 design files?

From the lynchaj/nhyodyne repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Z80DUART2 design in my own project?

The repository has no license, so all rights stay with lynchaj. Use it as a reference, and ask the author before reusing the design.

More boards in nhyodyne

Similar boards