1

* This specification are subject to be changed without notice.

EM73201

4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT

Preliminary

7.20.1999

GENERAL DESCRIPTION

EM73201 is an advanced single chip CMOS 4-bit micro-controller. It contains 2K-byte ROM, 52-nibble RAM,

4-bit ALU, 13-level subroutine nesting, 22-stage time base, one 12-bit timer/counter for the kernel function.

EM73201 also contains 5 interrupt sources, 4 I/O ports (including 1 input port, 1 output port for LED driving,

2 bidirection I/O ports) built-in watch-dog-time counter and one high frequency clock output for modulating

infrared signal.

Except low-power consumption and high speed, EM73201 also have a sleep and hold mode operation for the

power saving function.

EM73201 is suitable for application in family appliance, consumer products and toy controller.

FEATURES

• Operation voltage

: 2.4V to 6.0V (clock frequency: 32 KHz to 5 MHz)

• Clock source

: Single clock system for RC , Crystal and external clock source, available by

mask option.

• Instruction set

: 109 powerful instructions.

• Instruction cycle time

: Up to 2µs for 4.19MHz .

• ROM capacity

: 2048 x 8 bits.

• RAM capacity

: 52 x 4 bits.

• Input port

: 1 port (P0).

• Output port

: 1 port (P1).

• Bidirection I/O port

: 2 ports (P7,P8).

• 12-bit timer/counter

: One 12-bit timer/counter is programmable for timer, even counter and pulse

width measurement mode.

• Built-in time base counter : 22 stages.

• Subroutine nesting

: Up to 13 levels.

• Interrupt

: External interrupt . . . . . . 2 input interrupt sources.

Internal interrupt . . . . . . 1 timer overflow interrupt,

1 time base interrupt.

• The built-in watch-dog-timer counter is available by mask option.

• Low voltage reset is available by mask option.

• High frequency clockout: Programmable high frequency clock output for modulating infrared signal.

• Power saving function

: Sleep mode and Hold mode.

• Package type

: EM73201H

Chip form 22 pins.

EM73201AP

DIP

18 pins.

EM73201BK

SKINNY 22 pins.

EM73201CP

DIP

16 pins.

APPLICATIONS

EM73201 is suitable for application in family appliance, consumer products and the toy controller.