M37273MF-251SP datasheet(1/138 Pages) MITSUBISHI

Part #	M37273MF-251SP

Description	SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER??????

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Manufacturer	MITSUBISHI [Mitsubishi Electric Semiconductor]

Direct Link	http://www.mitsubishichips.com

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

M37273M8–XXXSP, M37273MF–XXXSP

M37273E8SP, M37273EFSP

MITSUBISHI MICROCOMPUTERS

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 I2C-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

µs (at 8 MHz oscillation frequency)

qPower source voltage ................................................. 5 V

± 10 %

qSubroutine nesting ............................................. 128 levels (Max.)

qInterrupts ....................................................... 17 types, 16 vectors

q8-bit timers .................................................................................. 6

qProgrammable I/O ports (Ports P0, P1, P2, P30, P31) ............. 26

qInput ports (Ports P50, P51) ........................................................ 2

qOutput ports (Ports P52–P57,P6) .............................................. 14

q12 V withstand ports ................................................................... 6

qLED drive ports ........................................................................... 4

qSerial I/O ............................................................ 8-bit ! 1 channel

qMulti-master I2C-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 VCC = 5.5V, 8 MHz oscillation frequency, OSD on, and Data

slicer on)

In low-speed mode ......................................................... 0.33 mW

(at VCC = 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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M37273MF-251SP Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor

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