1. DESCRIPTION

The M37151M6/M8/MA/MC/MF-XXXFP and M37151EFFP are single-chip microcomputers designed with CMOS silicon gate technology. They have an OSD, data slicer, and I2C-BUS interface, making them perfect for TV channel selection systems with a closed cap tion decoder. The M37151EFFP has a built-in PROM that can be written electrically.

FEATURES

●Number of basic instructions ................................................. 71

●Memory size

ROM .............. 24K bytes

(M37151M6-XXXFP)

32K bytes

(M37151M8-XXXFP)

40K bytes

(M37151MA-XXXFP)

48K bytes

(M37151MC-XXXFP)

60K bytes

(M37151MF-XXXFP, M37151EFFP)

RAM ............... 1024 bytes

(M37151M6-XXXFP)

1152 bytes

(M37151M8-XXXFP)

1472 bytes

(M37151MA-XXXFP, M37151MC-XXXFP)

2048 bytes

(M37151MF-XXXFP, M37151EFFP)

(*ROM correction memory included)

●Minimum instruction execution time

................................................................. 0.5 µs (Min.)(at 8 MHz)

●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) ............. 25

●Serial I/O ............................................................ 8-bit ✕ 1 channel

●Multi-master I2C-BUS interface .............................. 1 (3 systems)

●A-D comparator (7-bit resolution) ................................ 8 channels

●PWM output circuit ......................................................... 8-bit ✕ 5

●Power dissipation

High-speed mode ............................................................ 165 mW

(at VCC = 5.5V, Oscillation frequency 8 MHz, OSD on, and Data

slicer on)

Low-speed mode ............................................................ 0.33 mW

(at VCC = 5.5V, 32 kHz oscillation frequency)

●Closed caption data slicer

●ROM correction function ................................................ 2 vectors

●OSD function

Display characters ................................... 32 characters ✕ 2 lines