M37221EAFP View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

M37221EAFP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

Renesas Electronics 

MITSUBISHI MICROCOMPUTERS

M37221M4H/M6H/M8H/MAH–XXXSP/FP

M37221EASP/FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER

with ON-SCREEN DISPLAY CONTROLLER

1. DESCRIPTION

The M37221M4H/M6H/M8H/MAH-XXXSP/FP are single-chip micro-

computers designed with CMOS silicon gate technology. They have

a OSD, I2C-BUS interface, and PWM, making them perfect for TV

channel selection system.

The M37221EASP/FP have a built-in PROM that can be written elec-

trically.

2. FEATURES

qNumber of basic instructions ..................................................... 71

qMemory size

ROM ............. 16K bytes (M37221M4H-XXXSP/FP)

24K bytes (M37221M6H-XXXSP/FP)

32K bytes (M37221M8H-XXXSP/FP)

40K bytes (M37221MAH-XXXSP/FP, M37221EASP/FP)

RAM ............. 384 bytes (M37221M4H-XXXSP/FP)

448 bytes (M37221M6H-XXXSP/FP)

576 bytes (M37221M8H-XXXSP/FP)

704 bytes (M37221MAH-XXXSP/FP, M37221EASP/FP)

(ROM correction memory included)

qThe minimum instruction execution time

......................................... 0.5 µs (at 8 MHz oscillation frequency)

qPower source voltage .................................................. 5 V ± 10 %

qSubroutine nesting

maximum 96 levels (M37221M4H/M6H-XXXSP/FP)

maximum 128 levels (M37221M8H/MAH-XXXSP/FP, M37221EASP/FP)

qInterrupts ........................................................ 14 types, 14 vectors

q8-bit timers ................................................................................... 4

qProgrammable I/O ports

(Ports P0, P1, P2, P30–P32 ) ..................................................... 27

qInput ports (Ports P33, P34) ......................................................... 2

qOutput ports (Ports P52–P55) ...................................................... 4

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

qD-A converter (6-bit resolution) .................................................... 2

Note: Only M37221EASP/FP has D-A converter.

qPWM output circuit .......................................... 14-bit ✕ 1, 8-bit ✕ 6

qPower dissipation .............................. High-speed mode : 165 mW

(at VCC=5.5V, 8 MHz oscillation frequency, and OSD on)

qROM correction function ................................................. 2 vectors

qOSD function

Display characters .................................... 24 characters 5 2 lines

(3 lines or more can be displayed by software)

Kinds of characters ........................................................ 256 kinds

Character display area .............................................. 12 ✕ 16 dots

Kinds of character sizes ..................................................... 3 kinds

Kinds of character colors .................................. 8 colors (R, G, B)

Coloring unit ................... character, character background, raster

Display position .............................................................................

Horizontal: 64 levels

Vertical: 128 levels

Attribute .............................................................................. border

3. APPLICATION

TV

Rev. 1.0

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