83C145 Datasheet, PDF (3/40 Pages) NXP Semiconductors – Microcontrollers for TV and video MTV

Philips Semiconductors
Microcontrollers for TV and video (MTV)
Product specification
83C145; 83C845
83C055; 87C055
1 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 centre
pins)
• High-speed CMOS technology
• Power supply: 5 V ±10%.
2 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.
3 APPLICATIONS
Providing tuner functions and an OSD facility, it represents
a next generation replacement for the currently available
parts.
4 ORDERING INFORMATION
TYPE NUMBER
NAME
PACKAGE
DESCRIPTION
VERSION
P83C055BBP
P87C055BBP
P83C145BBP
P83C845BBP
SDIP42 plastic shrink dual in-line package; 42 leads (600 mil) SOT270-1
TEMP.
RANGE
(°C)
0 to +70
FREQ.
(MHz)
3.5 to 12
1996 Mar 22
3