M37273EFSP General 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.
M37273EFSP Maximum Ratings
M37273EFSP 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
M37273EFSP Connection Diagram
Map list: ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789All