saa5547ps NXP Semiconductors, saa5547ps Datasheet - Page 3

• Manufacturer Part Number: saa5547ps
• Description: Saa550x; Saa554x Tv Microcontrollers With Closed Captioning Cc And On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
2000 Feb 23
Single-chip microcontroller with integrated On-Screen
Display (OSD)
One Time Programmable (OTP) memory for both
Program ROM and character sets
Single power supply: 3.0 to 3.6 V
5 V tolerant digital inputs and I/O
29 I/O port via individual addressable controls
Programmable I/O for push-pull, open-drain and
quasi-bidirectional
Two port lines with 8 mA sink (at <0.4 V) capability, for
direct drive of Light Emitting Diode (LED)
Single crystal oscillator for microcontroller, OSD and
data capture
Power reduction modes: Standby, Idle and Power-down
Byte level I
(Slave mode up to 400 kHz)
32 Dynamically Redefinable Characters for OSDs
Special graphic characters allowing four colours per
character
Selectable character height 9, 10, 13 and 16 TV lines
Pin compatibility throughout family
Operating temperature: 20 to +70 C.
TV microcontrollers with Closed Captioning (CC)
and On-Screen Display (OSD)
FEATURES
2
C-bus up to 200 kHz with dual port I/O
3
2
The SAA55xx OSD only family of devices are a derivative
of the Philips industry standard 80C51 microcontroller and
are intended for use as the central control mechanism in a
television receiver. They provide control functions for the
television system, On-Screen Display (OSD) and some
versions include an integrated data capture function.
The main differences between the OSD only family and the
SAA55xx Text/CC family of baseline devices are:
Program ROM size: 16 to 64-kbyte
Display RAM size: 1.25-kbyte (1 page Text OSD or
CC OSD)
Auxiliary RAM size: 0.75-kbyte
No teletext data capture (Closed Caption only)
Additional power saving mode (Standby).
GENERAL DESCRIPTION
Preliminary specification
SAA55xx