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    MM74HC942 Price and Stock

    National Semiconductor Corporation MM74HC942N

    MODEM, 0.3KBPS DATA, CMOS, PDIP20
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Quest Components MM74HC942N 14
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    MM74HC942 Datasheets (8)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    MM74HC942 National Semiconductor MM74HC942 is a full duplex low speed modem Original PDF
    MM74HC942C National Semiconductor 300 Baud Modem Scan PDF
    MM74HC942J National Semiconductor MM74HC942 is a full duplex low speed modem Original PDF
    MM74HC942J National Semiconductor 300 Baud Modem Scan PDF
    MM74HC942J National Semiconductor 300 Baud Modem Scan PDF
    MM74HC942N National Semiconductor MM74HC942 is a full duplex low speed modem Original PDF
    MM74HC942N National Semiconductor 300 Baud Modem Scan PDF
    MM74HC942N National Semiconductor 300 Baud Modem Scan PDF

    MM74HC942 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    2025h

    Abstract: 2025Hz 74HC C1995 J20A MM74HC MM74HC942 MM74HC942J MM74HC942N universal telemetry modem
    Text: MM74HC942 300 Baud Modem General Description Features The MM74HC942 is a full duplex low speed modem It provides a 300 baud bidirectional serial interface for data communication over telephone lines and other narrow bandwidth channels It is Bell 103 compatible


    Original     		PDF MM74HC942 2025h 2025Hz 74HC C1995 J20A MM74HC MM74HC942J MM74HC942N universal telemetry modem

    74vhc942

    Abstract: modem hybrid separates transmit 74VHC943 AN-314 C1995 MM74HC942 TP53130 AN-1016 national AN-314 national
    Text: 74VHC942 and 74VHC943 Design Guide 74VHC942 and 74VHC943 Design Guide National Semiconductor Application Note 1016 October 1995 Table of Contents 4 The Hybrid 5) The Receive Filter 6) The FTLC Pin 7) The Carrier Detect Circuit a) Operation b) Threshold Control


    Original     		PDF 74VHC942 74VHC943 74VHC943 modem hybrid separates transmit AN-314 C1995 MM74HC942 TP53130 AN-1016 national AN-314 national

    Understanding 300 Baud Modem Specifications

    Abstract: 74vhc942 74VHC943 C1995 MM74HC942 MM74HC943 VA300 distortion factor generator AN-1017 national TMS9
    Text: National Semiconductor Application Note 1017 September 1995 Understanding the specifications commonly used for 300 Baud modems presents a major hurdle for first time modem buyers Not only are some specifications subtle but few standards exist so apparently similar specifications may reflect vastly different performance Understanding the conditions under which a modem is actually tested and how


    Original     		PDF

    MM74HC943

    Abstract: AN-392 C1995 MM74HC942 VA300 Phoenix Microsystems alto
    Text: National Semiconductor Application Note 392 Peter Single July 1985 Understanding the specifications commonly used for 300 Baud modems presents a major hurdle for first time modem buyers Not only are some specifications subtle but few standards exist so apparently similar specifications may reflect vastly different performance Understanding the conditions under which a modem is actually tested and how


    Original     		PDF

    FULL WAVE RECTIFIER CIRCUITS

    Abstract: National Hybrid 5532 lowpass filter CIRCUIT DIAGRAM AN-349 C1995 MM74HC942 SC-12 SC-15 internal diagram of external modem implementation of frequency discriminator
    Text: National Semiconductor Application Note 349 Anthony Chan Peter Single Daniel Deschene April 1984 INTRODUCTION The advent of low cost microprocessor based systems has created a strong demand for low cost reliable means of data communication via the dial-up telephone network The


    Original     		PDF

    FULL WAVE RECTIFIER CIRCUITS

    Abstract: AN10141 74vhc942 AN-1014 C1995 MM74HC942 SC-12 SC-15 discrete phase sequence detector national TV frequency synthesizer chip
    Text: National Semiconductor Application Note 1014 October 1995 INTRODUCTION The advent of low cost microprocessor based systems has created a strong demand for low cost reliable means of data communication via the dial-up telephone network The most widespread means for this task is the Bell 103 type


    Original     		PDF

    dx 8250

    Abstract: national semiconductor 8250, uart TP5088 telephone circuit with dtmf tp5088 8250 uart national OUT141 UART national 8250 8250 uart uart 8250 8250 uart datasheet
    Text: National Semiconductor Application Note 444 Wesley Lee July 1986 A simple modem provides an inexpensive way to link your IBM PC or compatible computer with a remote system The modem which transmits data asynchronously at 300 baud is easy to build and features both autodial and autoanswer


    Original     		PDF

    telephone circuit with dtmf tp5088

    Abstract: mm58167a TP5088 74510 74vhc942 mm58167 74HC 74VHC943 C1995 MM74HC942
    Text: National Semiconductor Application Note 1015 October 1995 When mated with a handful of CMOS peripheral ICs a single-chip CMOS modem device allows you to configure simple inexpensive microprocessor-telephone interface systems with autodial and autoanswer capabilities


    Original     		PDF 74VHC943 Bell103 74VHC942 MM74HC942 telephone circuit with dtmf tp5088 mm58167a TP5088 74510 mm58167 74HC C1995

    C24PH

    Abstract: optimum hybrid design ,national semiconductor Linear c24-ph "Optimum Hybrid Design" R12PI c24phi Var1-M12 midcom 671-0017 AN3971
    Text: National Semiconductor Application Note 397 Peter Single July 1985 Optimizing the interface between the phone line and a modem can significantly improve modem performance An increase of 6 dB in transmitted tone rejection can often be achieved Depending on the modem design this can provide


    Original     		PDF

    AN-314 national

    Abstract: MM74HC943 74HC AN-314 AN-347 C1995 MM54HC MM74HC942 TP53130 h5531
    Text: National Semiconductor Application Note 347 Peter Single Steve Munich April 1984 SECTIONS 1 Timing and Control a) Input and Output Thresholds b) Logic States and Control Pin Function c) The Oscillator 2) The Modulator a) Operation b) Transmit Level Adjustment


    Original     		PDF

    Untitled

    Abstract: No abstract text available
    Text: January 1988 MM74HC942 300 Baud Modem General Description Features The MM74HC942 is a full duplex low speed modem. It pro­ vides a 300 baud bidirectional serial interface for data com­ munication over telephone lines and other narrow band­ width channels. It is Bell 103 compatible.


    OCR Scan     		PDF MM74HC942 600ft

    MM74HCM

    Abstract: No abstract text available
    Text: MM74HC942 NATIONAL SEUICOND '{LOGIC} IDE D | bS01l22 DDbSSSb 7 | 05J National ÆjA Semiconductor MM74HC942 300 Baud Modem General Description Features The MM74HC942 is a full duplex low speed modem. It pro­ vides a 300 baud bidirectional serial interface for data com­


    OCR Scan     		PDF bS01l22 MM74HC942 MM74HC942 MM74KC942 MM74HCM2 MM74HCM

    1270Hz

    Abstract: National Hybrid balanced frequency discriminator 2025h power line carrier communication dc telephone hybrid 74HC MM74HC MM74HC942 MM74HC942J
    Text: Semiconductor January 1988 MM74HC942 300 Baud Modem General Description Features The MM74HC942 is a full duplex low speed modem. It pro­ vides a 300 baud bidirectional serial interface for data com­ munication over telephone lines and other narrow band­


    OCR Scan     		PDF MM74HC942 600fi 1270Hz National Hybrid balanced frequency discriminator 2025h power line carrier communication dc telephone hybrid 74HC MM74HC MM74HC942J

    Untitled

    Abstract: No abstract text available
    Text: January 1988 Semiconductor MM74HC942 300 Baud Modem General Description Features The MM74HC942 is a full duplex low speed modem. It pro­ vides a 300 baud bidirectional serial interface for data com­ munication over telephone lines and other narrow band­


    OCR Scan     		PDF MM74HC942 phon59

    triac tag 8518

    Abstract: 70146 DS3654 X2864AD 7 segment display RL S5220 TC9160 la 4440 amplifier circuit diagram 300 watt philips ecg master replacement guide vtl 3829 A-C4 TCA965 equivalent
    Text: 1985 0 / 0 / CONTENTS VOLUME I Introduction to IC MASTER 3 Advertisers’ Index 8 Master Selection Guide Function Index I0 Part Number Index 40 Part Number Guide 300 Logo Guide 346 Application Note Directory 349 Military Parts Directory 50I Testing 506 Cross Reference


    OCR Scan     		PDF

    74vhc942

    Abstract: universal telemetry modem power line carrier communication dc 74VHC MM74HC942 D-S2256 WV5 64
    Text: j^ e ^ 74VHC942 300 Baud Modem General Description Features The 74VHC942 is a full duplex tow speed modem. It pro­ vides a 300 baud bidirectional serial interface for data com­ munication over telephone lines and other narrow band­ width channels. It is Bell 103 compatible.


    OCR Scan     		PDF 74VHC942 600ft Cep-01451. 212-S066 GCH0G21 universal telemetry modem power line carrier communication dc 74VHC MM74HC942 D-S2256 WV5 64