S3C72B9 查看數據表（PDF） - Samsung

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S3C72B9

The S3C72B5/C72B7/C72B9 single-chip CMOS microcontroller has been designed for high performance using Samsung's newest 4-bit CPU core, SAM47

Samsung 

PRODUCT OVERVIEW

S3C72B5/C72B7/C72B9/P72B9

FEATURES SUMMARY

Memory

• 3,584 × 4-bit RAM

(Excluding LCD Display

RAM)

• 16,384/24,576/32,768 ×

8-bit ROM

51 I/O Pins

• I/O: 47 pins (32 pins are

configurable as SEG pins)

• Input only: 4 pins

LCD Controller/Driver

• 80 SEG × 16 COM, 88 SEG

× 8 COM Terminals

• Internal resistor circuit for

LCD bias

• 16 Level LCD contrast

control (software)

• Segment expandable circuit

• 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

• External event counter

• Arbitrary clock frequency

output

• External clock signal divider

16-Bit Timer/Counter

• Programmable 16-bit timer

• External event counter

• Arbitrary clock frequency

output

• External clock signal divider

• Configurable as two 8-bit

Timers

• Serial I/O interface clock

generator

Watch Timer

• Time interval generation:

0.5 s, 3.9 ms at 32,768 Hz

• 4 frequency outputs to BUZ

pin

• Clock source generation for

LCD

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

Comparator

• 3 Channel mode: internal

reference (4-bit resolution)

• 2 Channel mode: external

reference

Interrupts

• Five internal vectored

interrupts

• Four external vectored

interrupts

• Two quasi-interrupts

Bit Sequential Carrier

• Supports 16-bit serial data

transfer in arbitrary format

Memory-Mapped I/O Structure

• Data memory bank 15

Power-Down Modes

• Idle mode (only CPU clock

stops)

• Stop mode (main system

clock 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

• 128-pin QFP

1-2

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