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EM83702

Features: • Built-in two zener diode between VDD and VSS, RTS and VDD.• Buit-in noise immunity circuit.• CMOS DIP 16 pins package & SOP 16 pins package.• Low power dissipation.• Use 32.768 kHz crystal or 3.58MHz resonator.• Oscillator circuits on-chip.•...

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SeekIC No. : 004336113 Detail

EM83702: Features: • Built-in two zener diode between VDD and VSS, RTS and VDD.• Buit-in noise immunity circuit.• CMOS DIP 16 pins package & SOP 16 pins package.• Low power dissip...

EM83702 Data Sheet

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Part Number:
EM83702
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: 2024/10/17

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Product Details

Description



Features:

• Built-in two zener diode between VDD and VSS, RTS and VDD.
• Buit-in noise immunity circuit.
• CMOS DIP 16 pins package & SOP 16 pins package.
• Low power dissipation.
• Use 32.768 kHz crystal or 3.58MHz resonator.
• Oscillator circuits on-chip.
• Serial output in 1200 baud rate.
• Can be powered directly from RS-232C.
• Can drive directly to RS-232C.
• Three key-switches and four photo-couples inputs.
• Both key-in and key-release debounce interval 13 ms.
• Through three key-switches input, EM83702 can exert seven different output.
• The sampling rate of motion detector is 65 KHz.


Application

• Optical mouse or pen-mouse
• Mechanical mouse or pen-mouse
• Optomechanical mouse or pen-mouse
• Mechanical track ball
• Optomechanical track ball


Pinout

Connection Diagram


Specifications

Parameter
Min.
Max.
Unit
Supply voltage
VDD-VSS
-0.3
7.0
V
RTS-VSS
-0.3
14
V
Temperature under bias
0
70
°C
Storage temperature range
-65
150
°C
Power dissipation
-
500
mW



Description

The EM83702 Mouse Controller is specially designed to control mouse device. This single chip can interface three key-switches and four photo-couple direct to RS-232C. The EM83702 does not need any external power supply,so the mouse can go without a power line. It is versatile with both microsoft and mouse system.

Debouncing circuit were provided to prevent false entry and to improve the accuracy. In 1200 baud rate non-auto speed with 200 DPI wheels and photo-couples, the scanning is 650 mm/sec without missing a dot in microsoft mode,and the scanning speed can up to 770 mm/sec in mouse system mode.




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