48e30 datasheet, PDF - EEWORLD Datasheet

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48e30: Description8-Bit I/O Type MCU (With EEPROM); File Size296KB，44 Pages; ManufacturerHoltek; Websitehttp://www.holtek.com/

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48e30 Overview

8-Bit I/O Type MCU (With EEPROM)

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HT48E30

Preliminary

Features

Operating voltage:

HALT function and wake-up feature reduce power

8-Bit I/O Type MCU (With EEPROM)

SYS

=4MHz: 2.2V~5.5V

SYS

=8MHz: 3.3V~5.5V

Low voltage reset function

23 bidirectional I/O lines (max.)

1 interrupt input shared with an I/O line

8-bit programmable timer/event counter with overflow

consumption

4-level subroutine nesting

Up to 0.5ms instruction cycle with 8MHz system clock

at V

=5V

Bit manipulation instruction

14-bit table read instruction

63 powerful instructions

erase/write cycles EEPROM data memory

EEPROM data retention > 10 years

All instructions in one or two machine cycles

In system programming (ISP)

24/28-pin SKDIP/SOP package

interrupt and 8-stage prescaler

On-chip crystal and RC oscillator

Watchdog Timer

2048´14 program memory ROM (MTP)

128´8 data memory EEPROM

96´8 data memory RAM

Buzzer driving pair and PFD supported

General Description

The HT48E30 is an 8-bit high performance, RISC archi-

tecture microcontroller device specifically designed for

multiple I/O control product applications.

The advantages of low power consumption, I/O flexibil-

ity, timer functions, oscillator options, HALT and

wake-up functions, watchdog timer, buzzer driver, as

well as low cost, enhance the versatility of these devices

to suit a wide range of application possibilities such as

industrial control, consumer products, subsystem con-

trollers, etc.

Block Diagram

IN T /P G 0

In te rru p t

C ir c u it

S T A C K

4 L e v e ls

T M R 0

IN T C

T M R 0 C

P G 0

In s tr u c tio n

R e g is te r

W D T S

D A T A

M e m o ry

W D T P r e s c a le r

W D T

P r e s c a le r

T M R /P C 0

Y S

P ro g ra m

R O M

P ro g ra m

C o u n te r

E N /D IS

Y S

M P

W D T O S C

P A C

In s tr u c tio n

D e c o d e r

A L U

T im in g

G e n e ra to r

S h ifte r

M U X

P A

B Z /B Z

P B C

P G 1

P G 2

P B

P C C

O S C 2

O S

R E

V D

V S

C 1

A C C

P C

P O R T C

P O R T B

P B 0 ~ P B 7

P O R T A

P A 0 ~ P A 7

S T A T U S

P C 0 ~ P C 5

D a ta M e m o ry

E E P R O M

E E C R

P G C

P G

P O R T G

P G 0

Rev. 0.00

January 12, 2004

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