74154 Datasheet – 4-Line to 16-Line Decoder/Demultiplexer

Part Number: 74154, DM74154, SN74154

Function: 4-Line to 16-Line Decoders / Demultiplexers

Package: DIP 14 Pin Type

Manufacturer: National, Fairchild, TI

Images

74154 Decoder Demultiplexer

Description

Each or these 4-line-to-16-line decoders utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, G1 and G2, are low. The demultiplexing function is performed by using the 4 input lines to address the output line, passing data from one of the strobe inputs with the other strobe input low. When either strobe input is high, all outputs are high. These demultiplexers are ideally suited for implementing high-performance memory decoders. All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design.

Pinout

74154 datasheet pinout

Features

1. Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs

2. Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs

3. Input clamping diodes simplify system design

4. High fan-out, low-impedance, totem-pole outputs

5.Typical power dissipation 170 mW

Other data sheets are available within the file: 54154, DM74154, SN74154, 74LS154, 74HC154

74154 Datasheet PDF Download

74154 pdf

Similar features and reference parts

DM74154

SN74154

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SAA7201H Datasheet PDF – Integrated MPEG2 AVG Decoder

Part Number: SAA7201H

Function: 3.3 V, integrated MPEG2 AVG Decoder

Package: QFP160 Type

Manufacturer: Philips Electronics ( https://www.nxp.com/ )

Pinouts:

SAA7201H datasheet

Description

The SAA7201 is an MPEG2 decoder which combines audio decoding and video decoding. Additionally to these basic MPEG functions it also provides means for enhanced graphics and/or on-screen display. Due to an optimized architecture for audio and video decoding, maximum capacity in the external memory and processing power from the external CPU is available for the support for graphics.

Features

1. Uses single external Synchronous DRAM (SDRAM) organized as 1M ´ 16 interfacing at 81 MHz; compatible with the SDRAM ‘lite’ or ‘PC’
2. Fast external CPU interface; 16-bit data + 8-bit address
3. Single 27 MHz external clock for time base reference and internal processing; all required decoding and
presentation clocks are generated internally
4. Internal system time base at 90 kHz can be synchronized via CPU port
5. Flexible memory allocation under control of the external CPU enables optimized partitioning of memory for different tasks
6. Boundary scan (JTAG) plus external SDRAM self test implemented

Block Diagram

components

Other data sheets are available within the file:

SAA7201, SAA7201H/A/C2, SAA7201H/B/C2, SAA7201H/C1

 

SAA7201H Datasheet PDF Download


SAA7201H pdf