M37272EFSP

Features:

Number of basic instructions ........................................................... 7
Memory size
                       ROM .............. 24K bytes
                                              (M37272M6-XXXSP/FP)
                                              32K bytes
                                               (M37272M8-XXXSP/FP, M37272E8SP/FP)
                                               40K bytes
                                               (M37272MA-XXXSP)
                                               60K bytes
                                               (M37272EFSP)
                         RAM ............... 1024 bytes
                                               (M37272M6-XXXSP/FP)
                                               1152 bytes
                                               (M37272M8-XXXSP/FP, M37272E8SP/FP)
                                               1472 bytes
                                               (M37272MA-XXXSP, M37272EFSP)
                  (*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 P5₂P5₅) ........................................................... 4
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


Application

TV with a closed caption decoder


Pinout




Specifications

Symbol	Parametear		Conditions	Ratings	Unit
VCC, AVCC	Power source voltage	VCC, AVCC	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 P52P55		0 to 1 (See note 1)	mA
IOL1	Circuit current	P06, P07, P10, P15P17, P20P23 P26, P27, P52P55		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 M37272M6/M8-XXXSP/FP and M37272MA-XXXSP are single-chip microcomputers 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 M37272E8SP/FP and M37272EFSP are similar to those of the M37272M6-XXXSP except that the chip has a built-in PROM which can be written electrically. The difference between M37272M6-XXXSP/FP, M37272M8-XXXSP/FP and M37272MA-XXXSP are the ROM size and RAM size. Accordingly, the following descriptions will be for the M37272M6-XXXSP/FP.