schematics
eyalabraham
a repository that tracks the electronic schematics I used in various projects
Components (20)
| Reference | Value | Description |
|---|---|---|
| U1 | 74LS245 | Octal BUS Transceivers, 3-State outputs |
| U2,U3,U12 | 74LS244 | Octal Buffer and Line Driver With 3-State Output, active-low enables, non-inverting outputs |
| U4 | Z80-SIO2 | Parallel I/O, DIP-40 |
| U5 | 74LS374 | 8-bit Register, 3-state outputs |
| U6 | ATtiny84-20P | 20MHz, 8kB Flash, 512B SRAM, 512B EEPROM, debugWIRE, DIP-14 |
| U7 | 3.686400MHz | Crystal Clock Oscillator, DIP14-style metal package |
| U8 | MAX232 | Dual RS232 driver/receiver, 5V supply, 120kb/s, 0C-70C |
| U9 | 74LS04 | Hex Inverter |
| U10 | 74LS20 | Dual 4-input NAND |
| U11 | 74LS139 | Dual Decoder 1 of 4, Active low outputs |
| U13 | 74LS32 | Quad 2-input OR |
| U14 | 74LS08 | Quad And2 |
| U? | Bus ISA 8bit | 8-bit ISA-PC bus connector |
| C1-C5 | 1uF | Polarized capacitor, US symbol |
| CONN1 | CH375 board connector | Generic connector, double row, 02x08, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| CONN2 | DE9_Pins | 9-pin D-SUB connector, pins (male) |
| D1 | GRN | Light emitting diode |
| D2 | RED | Light emitting diode |
| R1-R3 | 10K | Resistor, US symbol |
| R3,R4 | 2K | Resistor, US symbol |