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83C145

Features: * Masked ROM sizes: 8 kbytes (83C845) 12 kbytes (83C145) 16 kbytes (83C055) 16 kbytes OTP (87C055)* RAM: 256 bytes* On Screen Display (OSD) controller* Three digital video outputs* Multiplexer/mixer and background intensity controls* Flexible formatting with OSD New Line option* 128 *...

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SeekIC No. : 004255905 Detail

83C145: Features: * Masked ROM sizes: 8 kbytes (83C845) 12 kbytes (83C145) 16 kbytes (83C055) 16 kbytes OTP (87C055)* RAM: 256 bytes* On Screen Display (OSD) controller* Three digital video outputs* Mult...

83C145 Data Sheet

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Part Number:
83C145
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: 2024/11/21

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Product Details

Description



Features:

* Masked ROM sizes:
  8 kbytes (83C845)
  12 kbytes (83C145)
   16 kbytes (83C055)
  16 kbytes OTP (87C055)
* RAM: 256 bytes
* On Screen Display (OSD) controller
* Three digital video outputs
* Multiplexer/mixer and background intensity controls
* Flexible formatting with OSD New Line option
* 128 * 10 bits display RAM
* Designed for reduced Radio Frequency Interference (RFI)
* Character generator ROM:
  character format 18 lines * 14 dots
  60 visible characters
  4 special characters
* Eight text shadowing modes
* Text colour selectable per character
* Background colour selectable per word
* Background colour versus video selectable per character
* Eight 6-bit Pulse Width Modulators (PWM) for analog voltage integration
* One 14-bit PWM for high-precision voltage integration
* Digital-to-analog converter and comparator with 3 inputs multiplexer
* Nine dedicated I/Os plus 28 port bits (15 port bits with alternative uses)
* 4 high current open-drain port outputs
* 12 high voltage (+12 V) open-drain outputs
* Programmable video input and output polarities
* 80C51 instruction set
* No external memory capability
* Plastic shrink dual in-line package (0.07 inch centrepins)
* High-speed CMOS technology
* Power supply: 5 V ±10%.


Application

Providing tuner functions and an OSD facility, it represents a next generation replacement for the currently available parts.


Pinout

Connection Diagram Connection Diagram Connection Diagram


Specifications

 SYMBOL  PARAMETER  MIN.  MIN. UNIT
 VDD  supply voltage  4.5  5.5   V
 VI  input voltage on any pin with respect to ground(VSS)  -0.5  6.5   V
 IOH  maximum source current for all port lines  -  -1.5  mA
 IOL  maximum sink current for all port lines  -  15  mA
 Ptot  total power dissipation  -  1.5 W
 Tamb  operating ambient temperature  0  70
 Tstg  storage temperature  -65  150  

Notes
1. Stresses above those listed under Limiting Values may cause permanent damage to the device.
2. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise noted.


Description

The 83C055, Microcontroller for Television and Video (MTV) applications, is a derivative of Philips' industry standard 80C51 microcontroller.
The 83C055 is intended for use as the central control mechanism in a television receiver or tuner.


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