1996 Mar 22
2
Philips Semiconductors
Product specification
Microcontrollers for TV and video (MTV)
83C145; 83C845
83C055; 87C055
CONTENTS
1
FEATURES
2
DESCRIPTION
3
APPLICATIONS
4
ORDERING INFORMATION
5
BLOCK DIAGRAM
5.1
Part options
6
PINNING INFORMATION
6.1
Pinning
6.2
Pin description
7
DESCRIPTION OF STANDARD FUNCTIONS
8
INPUT/OUTPUT (I/O)
9
DESCRIPTION OF DERIVATIVE
FUNCTIONS
9.1
General description
10
6-BIT PWM DACS
10.1
PWM DAC operation
10.2
Special Function Register PWMn (n = 0 to 7)
11
14-BIT PWM DAC (TDAC)
11.1
14-bit counter
11.2
14-bit DAC operation
11.3
Special Function Register TDACL
11.4
Special Function Register TDACH
12
SOFTWARE ANALOG-TO-DIGITAL FACILITY
12.1
Special Function Register SAD
12.2
Software ADC operation
13
ON SCREEN DISPLAY (OSD)
13.1
OSD features
13.2
General description of the OSD module
13.3
OSD logic
13.4
Character Generator ROM
13.5
Display RAM organization
13.6
OSD Special Function Registers
13.7
OSD Control Register OSCON
13.8
OSD Control Register OSMOD
13.9
OSD Control Register OSORG
14
PROGRAMMING CONSIDERATIONS
14.1
EPROM Characteristics
14.2
Programming operation
14.3
Erasure Characteristics
14.4
Reading Signature Bytes
14.5
EPROM Programming and Verification
15
PROGRAMMING THE OSD EPROM
15.1
Overview
15.2
Character description and programming
15.3
OSD EPROM bit map
16
REGISTER MAP
17
LIMITING VALUES
18
HANDLING
19
DC CHARACTERISTICS
20
AC CHARACTERISTICS
21
PACKAGE OUTLINES
22
SOLDERING
22.1
Introduction
22.2
Soldering by dip or wave
22.3
Repairing soldered joints
23
DEFINITIONS
24
LIFE SUPPORT APPLICATIONS
1996 Mar 22
3
Philips Semiconductors
Product specification
Microcontrollers for TV and video (MTV)
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
PACKAGE
TEMP.
RANGE
(
C)
FREQ.
(MHz)
NAME
DESCRIPTION
VERSION
P83C055BBP
SDIP42 plastic shrink dual in-line package; 42 leads (600 mil)
SOT270-1
0 to +70
3.5 to 12
P87C055BBP
P83C145BBP
P83C845BBP
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