MEGATEXT
®
and MEGATEXT PLUS ICs
SDA 5273 / SDA 5275
SDA 5273-2 / SDA 5275-2
Revision History:
1997-09-01
Previous Releases:
Page
20
11.96
Subjects (changes since last revision)
Now also covers SDA 5275-2 and SDA 5273-2 versions;
Reset/chip initialization update
Data Classification
Maximum Ratings
Maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible
damage to the integrated circuit.
Characteristics
The listed characteristics are ensured over the operating range of the integrated circuit. Typical
characteristics specify mean values expected over the production spread. If not otherwise specified,
typical characteristics apply at
T
A
= 25
°
C and the given supply voltage.
Operating Range
In the operating range the functions given in the circuit description are fulfilled.
For detailed technical information about
“Processing Guidelines”
and
“Quality Assurance”
for
ICs, see our
“Short Form Catalog”.
Edition 1997-09-01
Published by Siemens AG, Bereich Halbleiter, Marketing-Kommunikation,
Balanstraße 73, 81541 München
© Siemens AG 1997. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for components, not
for applications, processes and circuits implemented within components or assemblies.
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, delivery and prices please contact the Semiconductor Group Offices in Ger-
many or the Siemens Companies and Representatives worldwide (see address list).
Due to technical requirements components may contain dangerous substances. For information on the
types in question please contact your nearest Siemens Office, Semiconductor Group.
Siemens AG is an approved CECC manufacturer.
Packing
Please use the recycling operators known to you. We can also help you - get in touch with your nearest
sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of
transport.
For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to
invoice you for any costs incurred.
SDA 5273 / 75
SDA 5273-2 / 75-2
Contents
Page
1
1.1
1.2
2
3
4
Features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Diagrams
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
MEGATEXT
®
is a registered trademark of Siemens AG
Semiconductor Group
3
1997-09-01
MEGATEXT
®
and MEGATEXT PLUS ICs
SDA 5273 / 75
SDA 5273-2 / 75-2
CMOS IC
Preliminary Data
1
q
q
q
q
q
q
Features
Single chip teletext IC
Analog CVBS-input with onchip clamping circuitry
Slicer
Supports level 1, 2.5 and 3.5 ETSI teletext standard
Stores up to 14 teletext pages on chip
Stores up to 2048 teletext pages with external
16 M memory
q
SDA 5275: full level 2.5 processing
Analog RGB-output
41 latin script languages
12
×
10 character size
Parallel display attributes
64 from 4096 colors selectable
Enhanced flash modes
Dynamically redefinable character set (DRCS, PCS)
Pixel graphics
Fullscreen display (64
×
32 or 80
×
24 character positions)
Horizontal and vertical scrolling
Graphic cursors
4:3 and 16:9 display
Multinorm display (50/60/100/120 Hz)
RISC-processor
Firmware downloadable
I
2
C / 3 wire UART-interface (1 Mbit/s)
Independent clocks for acquisition and display
Tools for greatly simplified software development
P-LCC-68-1
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
P-SDIP-52-1
q
24-Kbyte on-chip reconfigurable DRAM
q
44160-bit character ROM
q
One external crystal for all standards
Type
SDA 5273 / 75 P
SDA 5273 / 75 S
SDA 5273-2 / 75-2P
SDA 5273-2 / 75-2S
SDA 5273C / 73-2C P
SDA 5273C / 73-2C S
Ordering Code
on request
on request
on request
on request
on request
on request
Package
P-LCC-68-1
P-SDIP-52-1
P-LCC-68-1
P-SDIP-52-1
P-LCC-68-1
P-SDIP-52-1
Semiconductor Group
4
1997-09-01