SAA5531 Philips Semiconductors, SAA5531 Datasheet - Page 3

• Manufacturer Part Number: SAA5531
• Description: Enhanced TV microcontrollers with On-Screen Display OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1
3
2000 Feb 23
Supply
V
I
I
I
I
I
I
I
I
I
f
T
T
DDP
DDC
DDC(id)
DDC(pd)
DDC(stb)
DDA
DDA(id)
DDA(stb)
DDA(pd)
xtal
amb
stg
Single-chip microcontroller with integrated OSD
Versions available with integrated data capture
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 ports 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 LED
Single crystal oscillator for microcontroller, OSD and
data capture
Power reduction modes: Idle, Power-down and Standby
Byte level I
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.
DDX
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SYMBOL
FEATURES
QUICK REFERENCE DATA
2
C-bus interface with dual port I/O
any supply voltage (V
periphery supply current
core supply current
Idle mode core supply current
Power-down mode core supply current
standby mode core supply current
analog supply current
Idle mode analog supply current
standby mode analog supply current
Power-down mode analog supply current
crystal frequency
ambient temperature
storage temperature
PARAMETER
DD
to V
SS
)
3
2
The SAA55xx family of microcontrollers 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 and display
function.
The data capture hardware has the capability of decoding
and displaying both 525 and 625-line World System
Teletext (WST), Closed Caption (CC) information, Video
Programming Information (VPS) and Wide Screen
Signalling (WSS) information. The same display hardware
is used both for Teletext, Closed Caption and On-Screen
Display, which means that the display features available
give greater flexibility to differentiate the TV set.
The SAA55xx family offers a range of functionality from
non-text, 16-kbyte program ROM and 256-byte RAM, to a
10 page text version, 128-kbyte program ROM and
2.25-kbyte RAM.
GENERAL DESCRIPTION
3.0
1
20
55
MIN.
3.3
15
4.6
0.76
5.1
45
0.87
809
0.45
12
TYP.
Preliminary specification
3.6
18
6
1
9
48
1.0
950
0.7
+70
+125
MAX.
SAA55xx
V
mA
mA
mA
mA
mA
mA
mA
mA
MHz
C
C
A
UNIT