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M37273MF-251SP Datasheet

  • M37273MF-251SP

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DEC...

  • 1313.27KB

  • 138頁

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
M37273M8鈥揦XXSP, M37273MF鈥揦XXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
1. DESCRIPTION
The M37273M8-XXXSP and M37273MF-XXXSP are single-chip mi-
crocomputers designed with CMOS silicon gate technology. They
have a OSD, data slicer, and I
2
C-BUS interface, so it is useful for a
channel selection system for TV with a closed caption decoder.
The features of the M37273E8SP and M37273EFSP are similar to
those of the M37273M8-XXXSP and M37273MF-XXXSP except that
the chip has a built-in PROM which can be written electrically. The
difference between M37273M8-XXXSP and M37273MF-XXXSP are
the ROM size and RAM size. Accordingly, the following descriptions
will be for the M37273M8-XXXSP.
2. FEATURES
qNumber
of basic instructions .................................................... 71
qMemory
size
ROM .............. 32K bytes
(M37273M8-XXXSP, M37273E8SP)
60K bytes
(M37273MF-XXXSP, M37273EFSP)
RAM ............... 1152 bytes
(M37273M8-XXXSP, M37273E8SP)
1472 bytes
(M37273MF-XXXSP, M37273EFSP)
(*ROM correction memory included)
qMinimum
instruction execution time
......................................... 0.5
碌s
(at 8 MHz oscillation frequency)
qPower
source voltage ................................................. 5 V
鹵
10 %
qSubroutine
nesting ............................................. 128 levels (Max.)
qInterrupts
....................................................... 17 types, 16 vectors
q8-bit
timers .................................................................................. 6
qProgrammable
I/O ports (Ports P0, P1, P2, P3
0
, P3
1
) ............. 26
qInput
ports (Ports P5
0
, P5
1
) ........................................................ 2
qOutput
ports (Ports P5
2
鈥揚(yáng)5
7
,P6) .............................................. 14
q12
V withstand ports ................................................................... 6
qLED
drive ports ........................................................................... 4
qSerial
I/O ............................................................ 8-bit
!
1 channel
qMulti-master
I
2
C-BUS interface .............................. 1 (2 systems)
qA-D
comparator (6-bit resolution) ................................ 6 channels
qPWM
output circuit ......................................................... 8-bit
!
6
qPower
dissipation
In high-speed mode ......................................................... 165 mW
(at V
CC
= 5.5V, 8 MHz oscillation frequency, OSD on, and Data
slicer on)
In low-speed mode ......................................................... 0.33 mW
(at V
CC
= 5.5V, 32 kHz oscillation frequency)
qROM
correction function ................................................ 2 vectors
qClosed
caption data slicer
qOSD
function
Display characters ................................... 32 characters
!
2 lines
(It is possible to display 3 lines or more by software)
Kinds of characters ........................................................ 254 kinds
Character display area ............................ CC mode: 16
!
26 dots
OSD mode: 16
!
20 dots
Kinds of character sizes ..................................... CC mode: 1 kind
OSD mode: 8 kinds
Kinds of character colors .................................. 8 colors (R, G, B)
Coloring unit ................... character, character background, raster
Display position
Horizontal: 128 levels
Vertical: 512 levels
Attribute ........................................................................................
CC mode: smooth italic, underline, flash, automatic solid space
OSD mode: border
Smoth roll-up
Window function
3. APPLICATION
TV with a closed caption decoder
Rev. 1.0

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