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MC145443B

PinoutSpecifications Parameter Symbol Value Unit Supply Voltage VDD 0.5 to 7.0 V DC Input Voltage Vin 0.5 to VDD + 0.5 V DC Output Voltage Vout 0.5 to VDD + 0.5 V Clamp Diode Current, per Pin IIK, IOK ±20 mA DC Output Cu...

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SeekIC No. : 004415459 Detail

MC145443B: PinoutSpecifications Parameter Symbol Value Unit Supply Voltage VDD 0.5 to 7.0 V DC Input Voltage Vin 0.5 to VDD + 0.5 V DC Output Voltage Vout ...

MC145443B Data Sheet

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Part Number:
MC145443B
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Pinout

Connection Diagram


Specifications

Parameter
Symbol
Value
Unit
Supply Voltage
VDD
0.5 to 7.0
V
DC Input Voltage
Vin
0.5 to VDD + 0.5
V
DC Output Voltage
Vout
0.5 to VDD + 0.5
V

 Clamp Diode Current, per Pin

 IIK, IOK

 ±20

 mA

 DC Output Current, per Pin

 Iout

 ±28

 mA

 Power Dissipation

 PD

 500

 mW

Operating Temperature Range
TA
40 to + 85
°C
Storage Temperature Range
Tstg
65 to + 150
°C

This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this highimpedance circuit. For proper operation it is recommended that Vin and Vout be constrained to the range VSS (Vin or Vout) VDD.

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD).




Description

The MC145442B and MC145443B silicongate CMOS singlechip 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 fullduplex or halfduplex 300baud 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
• LowBand and HighBand BandPass Filters OnChip
• Simplex, HalfDuplex, and FullDuplex Operation
• Originate and Answer Mode
• Analog Loopback Configuration for Self Test
• Hybrid Network Function OnChip
• Carrier Detect Circuit OnChip
• Adjustable Transmit Level and CD Delay Timing
• OnChip Crystal Oscillator (3.579 MHz)
• Single +5 V Power Supply Operation
• Internal MidSupply Generator
• PowerDown Mode
• Pin Compatible with MM74HC943
• Capable of Driving 9 dBm into a 600 Load




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