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