MLC822A
8-Bit micro-controller with 660 dots LCD Driver
Features
•
Single chip 8-bit micro-controller
•
Operating voltage: 2.4V to 5.5V
•
Memory :
♦
♦
♦
♦
Internal R-type VLCD divider
10 level programmable frame rate from
56.7Hz to 113.8Hz
Program ROM: 48*1024 Bytes
Data RAM (stack RAM included) : 3072
Bytes
•
Two re-loadable 8-bit timers
•
Two dividers
One 14-bit divider with the clock source
from sub-oscillator to generate a 2-Hz
interrupt
One 7-bit divider with the clock source
from main oscillator
♦
LCD RAM : 88 Bytes
•
10 input/output pins:
♦
♦
Dedicated I/O pins: P0[5:0]
Share pin I/O:
!
P0[7:6]/(UART TX, RX)
!
P1[0:1]/(SCLK, SDIO)
•
Build-in dual oscillation circuit:
♦
Ring oscillator up to
5MHz at 3.6V – 5.5V
4MHZ at 2.4V – 3.4V
for main oscillator (Fosc)
•
Half duplex UART function
•
Build-in Megawin E-flash interface
•
Dedicated SPK pin for tone output
•
LCD driver output:
♦
♦
♦
32768Hz crystal oscillator for
sub-oscillator (F
x32
)
Max 60 segment
×
11 common
1/11, 1/10, 1/9 duty and 1/4, 1/5 bias
driving mode
•
Build-in 8-level battery-low detector circuit
This document contains information on a new product under development by MEGAWIN. MEGAWIN reserves the right to change or discontinue
this product without notice.
MEGAWIN Technology Co., Ltd. 2004 All rights reserved.
2003/01/19 version A4
MEGAWIN
General Description
MLC822A is a cost effective, high performance
8-bit
micro-controller
of
MEGAWIN.
It
be used to system link with other devices. An
e-flash interface is useful for the external
memory application. The MLC822A provides a
build-in oscillator as clock source. It is suitable
for data bank product, hand-held game, toy
controllers and other products’ applications.
integrates an 8-bit pipeline CPU core, 48KB
ROM, 3072B RAM, two 8-bit timers, 660 dots
LCD driver, 10 I/O pins and other system
control circuits into a single chip. MLC822A
build in an UART interface circuit, which could
2
MLC822A Technical Summary
MEGAWIN
Embedded System
京公网安备 11010802033920号
EEWORLD
