M37273E8SP

Features:

Number of basic instructions .................................................... 71
Memory 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)
Minimum instruction execution time
   ........................................ 0.5 µs (at 8 MHz oscillation frequency)
Power source voltage ................................................. 5 V ± 10 %
Subroutine nesting ............................................. 128 levels (Max.)
Interrupts ....................................................... 17 types, 16 vectors
8-bit timers .................................................................................. 6
Programmable I/O ports (Ports P0, P1, P2, P30, P31) ................ 26
Input ports (Ports P50, P51) ........................................................ 2
Output ports (Ports P52P57,P6) .............................................. 14
12 V withstand ports ................................................................... 6
LED drive ports ............................................................................ 4
Serial I/O ............................................................. 8-bit 5 1 channel
Multi-master I²C-BUS interface ................................. 1 (2 systems)
A-D comparator (6-bit resolution) ................................. 6 channels
PWM output circuit ..........................................................  8-bit 5 6
Power 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)
ROM correction function ................................................... 2 vectors
Closed caption data slicer
OSD function
   Display characters ...................................... 32 characters 5 2 lines
         (It is possible to display 3 lines or more by software)
   Kinds of characters .......................................................... 254 kinds
   Character display area ............................... CC mode: 16 5 26 dots
   OSD mode: 16 5 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


Pinout




Specifications

Symbol	Parametear	Conditions	Ratings	Unit
VCC (AVCC)	Power source voltage        VCC (AVCC...M37272E8SP/FP, M37272EFSP/FP)	All voltages are based on VSS. Output transistors are cut off.	0.3 to 6	V
VI	Input voltage                     CNVSS		0.3 to 6	V
VI	Input voltage                     P00P07, P10P17, P20P27, P30,                                           P31, P50, P51, XIN, RESET, CVIN		0.3VCC + 0.3	V
VO	Output voltage                  P06, P07, P10P17, P20P27,                                           P30, P31, P52P55, XOUT		0.3VCC + 0.3	V
VO	Output voltage                  P00P05		0.3 to 13	V
IOH	Circuit current                    P10P17, P20P27, P30, P31                                           P52P57, P60P67		0 to 1 (See note 1)	mA
IOL1	Circuit current                    P06, P07, P10, P15P17, P20P23,                                           P26, P27, P52P57, P60P67		0 to 2 (See note 2)	mA
IOL2	Circuit current                    P11P14		0 to 6 (See note 2)	mA
IOL3	Circuit current                    P00P05		0 to 1 (See note 2)	mA
IOL4	Circuit current                    P24, P25, P30, P31		0 to 10 (See note 3)	mA
Pd	Power dissipation	Ta = 25 °C	550	mW
Topr	Operating temperature		10 to 70	°C
Tstg	Storage temperature		40 to 125	°C

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.