Speaking Wall Art: Difference between revisions

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| Front
| Front
| Optional Chip Selection with Decoder/Demultiplexer (74LS138) and HEX Inverter (74LS14)
| System Function Selection with Decoder/Demultiplexer (74LS138) and HEX Inverter (74LS14)
| [[File:SWA_Logic.jpg|x100px]]
| [[File:SWA_Logic.jpg|x100px]]
| End
| End

Revision as of 14:33, 19 March 2012

Front Image Text Description Fritz Image Back Image
Front SPO256-AL2 Voice Synthesizer IC End
Front Audio Amplifier based on LM386 End
Front CTS256A-AL2 Text-To-Speech Controller IC End
Front System Function Selection with Decoder/Demultiplexer (74LS138) and HEX Inverter (74LS14) End
Front Data and Address Bus Exchange with Latch (74LS373) End
Front External RAM (TMS4016-25) Buffer For Text Conversion End
Front External EPROM (2732A-70) For Custom Text To Allophone Conversion End
Front Serial Data Transfer Configuration Module with Latch (74LS373) End
Front Parallel Data Input Option with Octal Latch (74LS374) and D-Type Flip/Flop (74LS74) End