Electronic parts

Here are described parts that were or can be used in 8bit computers. Usually it is pure documentation.

For implementations that can be connected please see Interfaces and Upgrades sections.

Items in this section

765A/8272 (Floppy)

 One of 2 most popular Floppy Disk Controler type - Intel 8272, also known as FDC765A.

8051 (CPU)

 8051, the most popular microcontroller.

82xx (I/O)

 Family of interface chips: 8211, 8250, 8251, 8253, 8255, 8257, 8259, 8272.

AY-3-891X (I/O)

 AY sound generator.

Capacitor (Discrete)

 Capacitors used in 8bit computers.

DAC (Video)

 Video DAC conversts short color number (eg. 8bit) into wide color number (e.g. 18bit) using translation table. Datasheet of UM70C171.

DRAM (Memory)

 Dinamic Random Access Memory (DRAM). Memory with multiplexed address lines.

Discrete (Logic)

 Logic gates made from tranzistors diodes and resistors.

Encoder (Video)

 Video encoder converts RGB signal into PAL or NTSC. Datasheet of LM1889, NTE879, MC1377P, TEA2000.

Memory (I²C)

 Memory connectable to IIC magistral.

OPL3 (I/O)

 FM synthesis sound generator. Ad Lib compatibile.

Programmable (Logic)

 Programmable logic chips - GAL, HAL, PAL, PALCE.

ROM (Memory)

 Memories with parallel address and data lines.

RTC (I/O)

 Real Time Clock. Documentation for most used chips with parallel data. MC146818, DS12887, MSM6242B, RTC72421, RF5C01.

RTC (I²C)

 IIC Real Time Clock (RTC). Serial data transfer. PCF8583, DS1307.

SRAM (Memory)

 Static Random Access Memory (SRAM).

TTL (Logic)

 Logic chips from 74 series. Simple gates, counters, buffers, multiplexers, decoders, latches and other interesting functions.

Transistors (Discrete)

 Transistors - how they are used in 8bit computers. Example applications.

USART (I/O)

 Universal Synchronous/Asynchronous Transmitter/Receiver: WD2123, SCC2691, Z8530,

Z8000 (CPU)

 Z8000, the Zilog competitor to Intel 8088 and Motorola 68000, and its successors: Z80,000 and Z16C00.

links (Datasheet)

 Links where you can find more part datasheets.