MC74HC138A Datasheet PDF – 1-of-8 Decoder / Demultiplexer

Part Number: MC74HC138A

Function: 1-of-8 Decoder / Demultiplexer with LSTTL Compatible Inputs

Package: DIP, SOIC, TSSOP 16 Pin Type

Manufacturer: ON Semiconductor

Image and Pinouts:

MC74HC138A datasheet

 

Description

The MC74HCT138A is identical in pinout to the LS138. The 74HCT138A may be used as a level converter for interfacing TTL or  NMOS outputs to High Speed CMOS inputs.
The 74HCT138A decodes a three−bit Address to one−of−eight active−lot outputs. This device features three Chip Select inputs, two active−low and one active−high to facilitate the demultiplexing, cascading, and chip−selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.

Features

1. Output Drive Capability: 10 LSTTL Loads

2. Outputs Directly Interface to CMOS, NMOS and TTL

3. Operating Voltage Range: 2.0 to 6.0 V

4. Low Input Current: 1.0 μA

5. High Noise Immunity Characteristic of CMOS Devices

MC74HC138A Datasheet PDF Download


MC74HC138A pdf

Other data sheets are available within the file:

MC74HC138, 74HC138A, 74HC138, 74138

STi7141 Datasheet – HD Decoder for digital cable set-top box

This post explains for the semiconductor STi7141.

The Part Number is STi7141. The Package is PBGA 580 + 100 balls, 35 x 35 mm Type.

The function of this semiconductor is HD decoder for interactive digital cable set-top box .

Manufacturer: STMicroelectronics

Image:

STi7141 decoder datasheet

 

Description

The STi7141 is a highly integrated SoC (systemon-chip) designed to meet the demanding needs of the interactive cable set top box market place. The STi7141 integrates all the major system functions into a single device, and provides world leading, multi-layer, advanced security technologies to protect valuable video and audio assets.

 

Application Circuit

STi7141 application

The STi7141 is a low-cost, networkable, HDTV set-top box device, with an embeded
DOCSIS cable modem capable of providing DSG (DOCSIS set-top gateway), interactive
multimedia and internet access for the digital cable market.

Features

1. Three integrated cable receiver / demodulators
2. DOCSIS/EuroDOCSIS 2.0 cable modem with support for DOCSIS 3.0 down-stream channelbonding
3. SCTE-55 part 1 and 2 physical layer support for CableCARDTM
4. Dual Core architecture providing more than 1600 DMIPS of processing performance

Ordering Number : STi7141ZWA

 

STi7141 Datasheet

STi7141 pdf

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