參數(shù)資料
型號(hào)： M37274MA-053SP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
中文描述： 單芯片8位CMOS微機(jī)隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù)： 1/147頁
文件大小： 2042K
代理商： M37274MA-053SP
DESCRIPTION
The M3727EFSP is a single-chip microcomputer designed with CMOS
silicon gate technology. It is housed in a 52-pin shrink plastic molded
DIP.
In addition to their simple instruction sets, the ROM, RAM and I/O
addresses are placed on the same memory map to enable easy pro-
gramming.
The M3727EFSP has a OSD function and a data slicer function, so it
is useful for a channel selection system for TV with a closed caption
decoder.
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
MITSUBISHI MICROCOMPUTERS
M37274EFSP
OSD function
Display characters............................... 40 characters
16 lines
Kinds of characters .....................................................256 kinds
(In EXOSD mode, they can be combined with 16 kinds of extra
fonts)
Character display area ........................ CC mode : 16
26 dots
OSD mode : 16
20 dots
EXOSD mode : 16
26 dots
Kinds of character sizes ............................... CC mode : 2 types
OSD mode : 14 types
EXOSD mode : 6 types
Kinds of character background colors
CC mode : 7 kinds (a character unit)
OSD mode : 7 kinds (a character unit)
EXOSD mode : 5 kinds (a character unit)
It can be specified by a screen unit (maximum 7 kinds).
Extra font coloring, raster coloring, border coloring
Kinds of character colors............... CC mode : 7 kinds (R, G, B)
OSD mode : 7 kinds (R, G, B)
EXOSD mode : 5 kinds (R, G, B)
Display position
Horizontal ................................................................ 256 levels
Vertical .................................................................. 1024 levels
Attribute ......................CC mode : smooth italic, underline, flash
OSD mode : border
EXOSD mode : border,
extra font (16 kinds)
Automatic solid space function
Window function
Dual layer OSD function
APPLICATION
TV with a closed caption decoder
FEATURES
Number of basic instructions..................................................... 71
Memory size
ROM ....................................................... 60 K bytes
RAM ........................................................1024 bytes
ROM correction memory.............................64 bytes
ROM for OSD .......................................11072 bytes
RAM for OSD ..........................................1920 bytes
Minimum instruction execution time
......................................... 0.5 μs (at 8 MHz oscillation frequency)
Power source voltage...................................................5 V ± 10 %
Subroutine nesting .............................................128 levels (Max.)
Interrupts ....................................................... 18 types, 16 vectors
8-bit timers .................................................................................. 6
Programmable I/O ports (Ports P0, P1, P2, P3
0
, P3
1
).............. 26
Input ports (Ports P4
0
–P4
6
, P6
3
, P6
4
, P7
0
–P7
2
) ...................... 12
Output ports (Ports P5
2
–P5
5
)...................................................... 4
12 V withstand ports.................................................................... 7
LED drive ports ........................................................................... 2
Serial I/O ............................................................ 8-bit
1 channel
Multi-master I
2
C-BUS interface................................1 (2 systems)
A-D converter (8-bit resolution) ....................................6 channels
PWM output circuit .........................................14-bit
1, 8-bit
7
Power dissipation
In high-speed mode ..........................................................165mW
(at V
CC
= 5.5V, 8MHz oscillation frequency, CRT on, and Data
slicer on)
In low-speed mode...........................................................0.33mW
(at V
CC
= 5.5V, 32kHz oscillation frequency)
Data slicer
ROM correction function
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