PCA 84C641P 524 CTV322S 8-bit microcontrollers with OSD and VST

ALSO: CTV322S V1.2

1 FEATURES
1.1 PCF84CXXXA kernel
· 8-bit CPU, ROM, RAM, I/O in a single 42 leads shrink
DIL package
· 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
· 2 direct testable inputs T0, T1
· 8-bit programmable timer/event counter
· 3 single level vectored interrupts (external,
timer/counter, I2C-bus)
· Power-on-reset and low voltage detector
· Single power supply
· 2 power reduction modes: Idle and Stop
· Operating temperature range: -20 to +70 °C
· Silicon gate CMOS fabrication process (SAC2).

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.
The PCA84C640 comprises:
· The PCF84CXXXA processor core
· 6 kbytes mask-programmable program ROM
· 128 bytes RAM
· Multi-master I2C-bus interface
· 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

· Four programmable display dot sizes
· Half dot character rounding
· Seven colours for each character
· One 14-bit PWM output for VST
· Five 6-bit PWM outputs for analog controls
· Eight port lines with 10 mA LED drive capability
· 18 general purpose bidirectional I/O lines
plus 11 function-combined I/O lines
· 2 direct testable lines
· Programmable VSYNCN and HSYNCN input polarity
· RC oscillator for OSD function.

2 GENERAL DESCRIPTION

The 84C44X; 84C64X; 84C84X denotes the types:
· PCA84C440; 84C441; 84C443; 84C444
· PCA84C640; 84C641; 84C643; 84C644
· PCA84C840; 84C841; 84C843; 84C844,
which are 8-bit microcontrollers with On Screen Display
(OSD) and Voltage Synthesized Tuning (VST) functions.
All are members of the 84CXXX microcontroller family.
There are two oscillator types for the OSD function in the
various types, i.e.,
· RC oscillator: PCA84C440; 84C443; 84C640; 84C643;
84C840; 84C843
· LC oscillator: PCA84C441; 84C444; 84C641; 84C644;
84C841; 84C844.