Philips Semiconductors
Product specification
8-bit microcontrollers with OSD and VST
84C44X; 84C64X; 84C84X
• Four programmable display dot sizes
1
FEATURES
• Half dot character rounding
1.1
PCF84CXXXA kernel
• Seven colours for each character
• One 14-bit PWM output for VST
• 8-bit CPU, ROM, RAM, I/O in a single 42 leads shrink
DIL package
• Five 6-bit PWM outputs for analog controls
• Eight port lines with 10 mA LED drive capability
• Over 80 instructions all of 1 or 2 cycles
• 29 quasi-bidirectional standard I/O port lines
• Configuration of I/O lines individually selected by mask
• External interrupt INT/T0
• 18 general purpose bidirectional I/O lines
plus 11 function-combined I/O lines
• 2 direct testable lines
• 2 direct testable inputs T0 and T1
• Programmable VSYNCN and HSYNCN input polarity
• RC oscillator for OSD function.
• 8-bit programmable timer/event counter
• 3 single level vectored interrupts (external,
timer/counter, I2C-bus)
2
GENERAL DESCRIPTION
• Power-on-reset and low voltage detector
• Single power supply
The 84C44X; 84C64X; 84C84X denotes the types:
• PCA84C440; 84C441; 84C443; 84C444
• PCA84C640; 84C641; 84C643; 84C644
• PCA84C840; 84C841; 84C843; 84C844.
• 2 power reduction modes: Idle and Stop
• Operating temperature range: −20 to +70 °C
• Silicon gate CMOS fabrication process (SAC2).
which are 8-bit microcontrollers with On Screen Display
(OSD) and Voltage Synthesized Tuning (VST) functions.
All are members of the 84CXXX microcontroller family.
1.2
Derivative features PCA84C640
Although the PCA84C640 is specifically referred to
throughout this data sheet, the information applies to all
the devices. The small differences between the 84C640
and the other devices are specified in the text and also
highlighted in Chapter 6.
There are two oscillator types for the OSD function in the
various types, i.e.,
• RC oscillator: PCA84C440; 84C443; 84C640; 84C643;
84C840; 84C843
The PCA84C640 comprises:
• LC oscillator: PCA84C441; 84C444; 84C641; 84C644;
• The PCF84CXXXA processor core
• 6 kbytes mask-programmable program ROM
• 128 bytes RAM
84C841; 84C844.
2.1
Important note
• Multi-master I2C-bus interface
This data sheet details the specific properties of the
PCA84C44X, PCA84C64X and PCA84C84X.
The shared characteristics of the PCA84CXXX family of
microcontrollers are described in the PCF84CXXXA
Family single-chip 8-bit Microcontroller of “Data Handbook
IC14”, which should be read in conjunction with this data
sheet.
• AFC input for Voltage Synthesized Tuning
(VST; with 3-bit DAC and comparator)
• On Screen Display (OSD) facility for two rows of
16-characters
• On Screen Display character set of 64 types
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMPERATURE
RANGE (°C)
NAME
DESCRIPTION
VERSION
PCA84C440; 84C443; 84C640; 84C643;
84C840; 84C843
plastic shrink dual in-line
package; 42 leads (600 mil)
SDIP42
SOT270-1
−20 to +70
PCA84C441; 84C444; 84C641; 84C644;
84C841; 84C844
1996 Nov 29
3