Content for 74HC154

74HC154

The 74HC154; 74HCT154 is a 4-to-16 line decoder/demultiplexer. It decodes four binary weighted address inputs (A0 to A3) to sixteen mutually exclusive outputs (Y0 to Y15). The device features two input enable (E0 and E1) inputs. A HIGH on either of the input enables forces the outputs HIGH. The device can be used as a 1-to-16 demultiplexer by using one of the enable inputs as the multiplexed data input. When the other enable input is LOW the addressed output will follow the state of the applied data. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Recreating classic games with a bare MCU

“Some time ago, I hatched a plan to introduce my kids to a handful of classic computer games. This wasn’t a matter of misplaced nostalgia: I’m not overly sentimental and I’d rather play Horizon Zero Dawn than …

Red/Green/Blue Disco Tile

“A 16x16 Red/Green/Blue matrix display driven by shift registers, MOSFETs and a Arduino Pro Micro (old school electronics). This is an extension to my previous Red/Green Disco Tile. By using Red/Green/Blue 8x8 matrixes, more colors …

8085 homebrew computer

“A custom pc based on 8085 with custom assembler and EEPROM programmer. This project consist of an assembler project written in Python in order to translate the assembly code into machine code recognizable from the 8085 microprocessor, acustom EEPROM writer …

Vectron VGA Plus Text Mode

“Vectron VGA Plus Text Mode simplifies displaying text with retro computers and microcontrollers by hiding the pixel-level details. Supply only row and column positions, and an ASCII character code, to write text to a 40x30 character VGA display. How It …

Stacks - A16-Bit Breadboard Processor

“Project to simulate, design, and build a 16-bit breadboard computer. The breadboards are installed in a 3-layer plastic enclosure for circuit stabilization and protection. I designed my own hardware architecture and instruction set architecture (ISA) loosely based on RISC-V …

Pineapple ONE

“32 bit RISC-V homemade In this article I will describe how I designed and made a functional 32 bit RISC-V CPU at home. Specifications: “Max” clock speed: 500 kHz Program memory: 512 kB RAM size: 512 kB VGA …