Flock
About the Flock PCB
Flock is an open source PCB design by skiselev, published on GitHub. It is a 2-layer board measuring 99.1 × 49.9 mm, with 25 components from 19 distinct parts.
Other key parts include the 37C65, DS1302+, 74HCT174, 74HCT138 and 74HCT125. By type, the board carries 10 capacitors, 6 ICs, 4 connectors, 3 resistors and 2 crystals.
It belongs with the retro computing designs in this gallery.
From the project
Floppy Controller and Real Time clock for RC2014 compatible systesm
Please refer to Assembly Instructions document
Write: Floppy disk controller control configuration register (CCR) Read: Floppy disk controller digital input register (DIR)
Read: Floppy disk controller master status register (MSR)
Read/Write: Data from/to floppy disk controller
Write: Floppy disk controller digital output register (DOR) Read: Toggle floppy disk controller transfer complete (TC) line
Main components on the Flock
Flock bill of materials (BOM)
25 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 37C65 | IC_PLCC44_TH | U1 |
| 1 | DS1302+ | IC_DIP8_300 | U2 |
| 1 | 74HCT174 | IC_DIP16_300 | U3 |
| 1 | 74HCT138 | IC_DIP16_300 | U4 |
| 1 | 74HCT125 | IC_DIP14_300 | U5 |
| 1 | 74HCT32 | IC_DIP14_300 | U6 |
| 1 | 16MHz | Crystal_HC-49U_Vert | Y1 |
| 1 | 32768Hz | Crystal_32K_Horiz | Y2 |
| 1 | Floppy | Conn_Pin_Header_17x2_2.54mm_Shrouded | J1 |
| 1 | Floppy 5V | Conn_TE_2-644488-2_2P_2.54mm | J2 |
| 1 | RC2014_BUS | Conn_Pin_Header_39x1_2.54mm_Right_Angle | J3 |
| 1 | RC2014_EXT | Conn_Pin_Header_10x1_2.54mm_Right_Angle | J4 |
| 6 | 100nF | Cap_Cer_508 | C1, C2, C3, C4, C5, C6 |
| 1 | 47uF | Cap_Elec_Radial_6.3mm | C7 |
| 1 | 0.22F | Cap_Super_Radial_13.5mm | C8 |
| 1 | 47pF | Cap_Cer_508 | C9 |
| 1 | 15pF | Cap_Cer_508 | C10 |
| 2 | 4.7k | Res_762 | R1, R2 |
| 1 | 1k | Conn_SIL6 | RN1 |
Flock design files
The KiCad project lives in the skiselev/flock repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/Z80-FDC.kicad_pcb
- SchematicKiCad/Z80-FDC.kicad_sch
Flock: common questions
How big is the Flock PCB?
The Flock measures 99.1 × 49.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Flock?
25 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Flock design files?
From the skiselev/flock repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Flock design in my own project?
The repository has no license, so all rights stay with skiselev. Use it as a reference, and ask the author before reusing the design.
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