OVERVIEW

The S3C72P9 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers).

With an up-to-896-dot LCD direct drive capability, flexible 8-bit and 16-bit timer/counters, and serial I/O interface, the S3C72P9 offers an excellent design solution for a wide variety of applications which require LCD functions.

FEATURES

Memory

• 1,056 ´ 4-bit RAM (excluding LCD display RAM)

• 32,768 ´ 8-bit ROM

39 I/O Pins

• I/O: 35 pins

• Input only: 4 pins

LCD Controller/Driver

• 56 segments and 16 common terminals

• 8, 12 and 16 common selectable

• Internal resistor circuit for LCD bias

• All dot can be switched on/off

• LCD contrast control by software

8-bit Basic Timer

• 4 interval timer functions

• Watch-dog timer

8-bit Timer/Counter

• Programmable 8-bit timer

• External event counter

• Arbitrary clock frequency output

• External clock signal divider

• Serial I/O interface clock generator

16-Bit Timer/Counter

• Programmable 16-bit timer

• External event counter

• Arbitrary clock frequency output

• External clock signal divider

8-bit Serial I/O Interface

• 8-bit transmit/receive mode

• 8-bit receive mode

• LSB-first or MSB-first transmission selectable

• Internal or external clock source

Memory-Mapped I/O Structure

• Data memory bank 15

Watch Timer

• Time interval generation: 0.5 s, 3.9 ms at 32768 Hz

• 4 frequency outputs to BUZ pin

• Clock source generation for LCD

Interrupts

• Four internal vectored interrupts

• Four external vectored interrupts

• Two quasi-interrupts

Bit Sequential Carrier

• Supports 16-bit serial data transfer in arbitrary format

Power-Down Modes

• Idle mode (only CPU clock stops)

• Stop mode (main system oscillation stops)

• Subsystem clock stop mode

Oscillation Sources

• Crystal, ceramic, or RC for main system clock

• Crystal oscillator for subsystem clock

• Main system clock frequency: 0.4 – 6 MHz

• Subsystem clock frequency: 32.768 kHz

• CPU clock divider circuit (by 4, 8, or 64)

Instruction Execution Times

• 0.67, 1.33, 10.7 µs at 6 MHz

• 0.95, 1.91, 15.3 µs at 4.19 MHz

• 122 µs at 32.768 kHz

Operating Temperature

• – 40 °C to 85 °C

Operating Voltage Range

• 1.8 V to 5.5 V

Package Type

• 100-pin QFP