Samsung DVD-R155 Service Manual page 116

Circuit Operating Descriptions
13-2-4 System contol by MC80F0208 Micro Controller
DVD-R155/R150 Euro and ASIA Model use New Microcontroller of ABOV.
When compared to uPD78F4928 Micro-controller which is used in previous model(DVD-R130), MC80F0208 is
smaller both in size and function.
ΠΠMC80F0208 Overview
The MC80F0208 is advanced CMOS 8-bit microcontroller with 8K bytes of FLASH(ROM).
This is a powerful microcontroller which provides a highly flexible and cost effective solution to many embedded
control applications.
This provides the following standard features :
8K bytes of FLASH, 1K bytes of RAM, 8/16-bit timer/counter, watchdog timer, watch timer, 10-bit A/D
converter, 8-bit Serial Input/Output, UART, buzzer driving port, 10-bit PWM output and on-chip oscillator and
clock circuitry. It also has 8 high current I/O pins with typical 20mA. In addition, the MC80F0208/16/24 supports
power saving modes to reduce power consumption.
MC80F0224 which have built-in 24Kbit ROM used for Develeopment stage, but 8kbit version is used for Mass
production.
- Pin Layout of MC80F0208Q
13-16
Fig. 13-11
Samsung Electronics