S3C7295 데이터 시트보기 (PDF) - Samsung

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S3C7295

The S3C7295 single-chip CMOS microcontroller has been designed for high performance using Samsung's newest 4-bit CPU core, SAM47

Samsung 

PRODUCT OVERVIEW

FEATURES

Memory

• 256 × 4-bit RAM (excluding LCD display RAM)

• 16,384 × 8-bit ROM

8 I/O Pins

• I/O: 8 pins

LCD Controller/Driver

• 44 segments and 16 common terminals

(8, 12 and 16 common selectable)

• Internal resistor circuit for LCD bias

• Voltage doubler

• All dot can be switched on/off

8-bit Basic Timer

• 4 interval timer functions

• Watch-dog timer

8-bit Timer/Counter

• Programmable 8-bit timer

• Arbitrary clock output (TCLO0)

• Inverted clock output (TCLO0)

Watch Timer

• Time interval generation: 0.5 s, 3.9 ms

at 32768 Hz

• Four frequency outputs to BUZ pin and BUZ pin

• Clock source generation for LCD

Interrupts

• Two internal vectored interrupts

• Four external vectored interrupts

• Two quasi-interrupts

S3C7295/P7295

Memory-Mapped I/O Structure

• Data memory bank 15

Power-Down Modes

• Idle mode (only CPU clock stops)

• Stop mode (main system oscillation stops)

• Sub system clock stop mode

Oscillation Sources

• Crystal, ceramic, or RC for main system clock

• Crystal oscillator for subsystem clock

• Main system clock frequency: 4.19 MHz

(typical)

• Subsystem clock frequency: 32.768 kHz

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

Instruction Execution Times

• 0.95, 1.91, 15.3 µs at 4.19 MHz (main)

• 122 µs at 32.768 kHz (subsystem)

Operating Temperature

• – 40 °C to 85 °C

Operating Voltage Range

• 2.2 V to 3.4 V (0.4 MHz to 4.19 MHz)

Package Type

• 80-pin QFP or pellet

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