MC145442B中文资料PDF规格书
MC145442B规格书详情
Single–Chip 300–Baud Modem
The MC145442B and MC145443B silicon–gate CMOS single–chip low–speed modems contain a complete frequency shift keying (FSK) modulator, demodulator, and filter. These devices are compatible with CCITT V.21 (MC145442B) and Bell 103 (MC145443B) 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.
• MC145442B Compatible with CCITT V.21
• MC145443B 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
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ON |
2016+ |
DIP20 |
4656 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
MOTOROLA/摩托罗拉 |
20+ |
SOP20 |
67500 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
ON |
23+ |
DIP20 |
20000 |
原厂原装正品现货 |
询价 | ||
MOTO |
23+ |
SOP-16 |
9526 |
询价 | |||
MOTOROLA/摩托罗拉 |
23+ |
SOP-20 |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
MOTOROLA/摩托罗拉 |
23+ |
SOP20 |
15000 |
全新原装现货,价格优势 |
询价 | ||
ON |
22+ |
DIP20 |
25000 |
只做原装进口现货,专注配单 |
询价 | ||
MOT |
PDIP20 |
699839 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
MOT |
21+ |
PDIP20 |
1580 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
ON |
2020+ |
DIP20 |
14225 |
公司主营品牌,全新原装现货超低价! |
询价 |