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Part Number: 83C145
Description: The 83C055, Microcontroller for Television and Video (MTV) applications, is a derivative of Philips' industry standard ...
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83C145
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DataSheet
General Description
83C145 General 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.
83C145 Maximum Ratings
| 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.
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 * 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%.
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%.
83C145 Typical Application
Providing tuner functions and an OSD facility, it represents a next generation replacement for the currently available parts.
83C145 Connection Diagram
83C145
PDF/DataSheet Download
- Datasheet: 83C145
- File Size: 249495 KB
- Manufacturer: PHILIPS [Philips Semiconductors]
- Click here to Download
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83C145 Relative Products
83C055
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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