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MC145443 bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MC145443 bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 12 page MC145442 •MC145443 MOTOROLA 1 Single-Chip 300-Baud Modem The MC145442 and MC145443 silicon–gate CMOS single–chip low–speed modems contain a complete frequency shift keying (FSK) modulator, demodu- lator, and filter. These devices are with CCITT V.21 (MC145442) and Bell 103 (MC145443) specifications. Both devices provide full–duplex or half–duplex 300–baud data communication over a pair of telephone lines. They also include a carrier detect circuit for the demodulator section and a duplexer circuit for direct operation on a telephone line through a simple transformer. • MC145442 Compatible with CCITT V.21 • MC145443 Compatible with Bell 103 • Low–Band and High–Band Band–Pass Filters On–Chip • Simplex, Half–Duplex, and Full–Duplex Operation • Originate and Answer Mode • Analog Loopback Configuration for Self Test • Hybrid Network Function On–Chip • Carrier Detect Circuit On–Chip • Adjustable Transmit Level and CD Delay Timing • On–Chip Crystal Oscillator (3.579 MHz) • Single + 5 V Power Supply Operation • Internal Mid–Supply Generator • Power–Down Mode • Pin Compatible with MM74HC943 • Capable of Driving – 9 dBm into a 600 Ω Load Order this document by MC145442/D MOTOROLA SEMICONDUCTOR TECHNICAL DATA PIN ASSIGNMENT MC145442 MC145443 P SUFFIX PLASTIC DIP CASE 738 DW SUFFIX SOG PACKAGE CASE 751D 20 1 20 1 VDD CDT CD LB DSI FB Xin Xout CDA RxD 5 4 3 2 1 10 9 8 7 6 14 15 16 17 18 19 20 11 12 13 RxA1 TxA Exl VAG TLA TxD VSS MODE SQT RxA2 ORDERING INFORMATION MC145442P Plastic DIP MC145443P Plastic DIP MC145442DW SOG Package MC145443DW SOG Package © Motorola, Inc. 1995 REV 1 8/95 |
Số phần tương tự - MC145443 |
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Mô tả tương tự - MC145443 |
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