S3C8-SERIES MICROCONTROLLERS
Samsung's S3C8 series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range of integrated peripherals, and various mask-programmable ROM sizes. Among the major CPU features are:

• Efficient register-oriented architecture
• Selectable CPU clock sources
• Idle and Stop power-down mode release by interrupt
• Built-in basic timer with watchdog function

A sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or more interrupt sources and vectors. Fast interrupt processing (within a minimum of four CPU clocks) can be assigned to specific interrupt levels.

S3C8245/P8245/C8249/P8249 MICROCONTROLLER
The S3C8245/P8245/C8249/P8249 single-chip CMOS microcontroller are fabricated using the highly advanced CMOS process, based on Samsung's newest CPU architecture.
The S3C8245, S3C8249 are a microcontroller with a 16K-byte, 32K-byte mask-programmable ROM embedded respectively.
The S3P8245 is a microcontroller with a 16K-byte one-time-programmable ROM embedded.
The S3P8249 is a microcontroller with a 32K-byte one-time-programmable ROM embedded.
Using a proven modular design approach, Samsung engineers have successfully developed the S3C8245/P8245/C8249/P8249 by integrating the following peripheral modules with the powerful SAM8 core:

• Six programmable I/O ports, including five 8-bit ports and one 5-bit port, for a total of 45 pins.
• Eight bit-programmable pins for external interrupts.
• One 8-bit basic timer for oscillation stabilization and watchdog functions (system reset).
• Two 8-bit timer/counter and two 16-bit timer/counter with selectable operating modes.
• Watch timer for real time.
• 8-input A/D converter
• Serial I/O interface

The S3C8245/P8245/C8249/P8249 is versatile microcontroller for camera, LCD and ADC application, etc. They are currently available in 80-pin TQFP and 80-pin QFP package

OTP
The S3P8245/P8249 are OTP (One Time Programmable) version of the S3C8245/C8249 microcontroller. The S3P8245 microcontroller has an on-chip 16K-byte one-time-programmable EPROM instead of a masked ROM. The S3P8249 microcontroller has an on-chip 32K-byte one-time-programmable EPROM instead of a masked ROM. The S3P8245 is comparable to the S3P8245, both in function and in pin configuration.
The S3P8249 is comparable to the S3P8249, both in function and in pin configuration.

• Memory
  - ROM: 32K-byte (S3C8249/P8249)
  - ROM: 16K-byte (S3C8245/P8245)
  - RAM: 1056-Byte (S3C8249/P8249)
  - RAM: 544-Byte (S3C8245/P8245)
  - Data memory mapped I/O
• Oscillation Sources
  - Crystal, ceramic, RC (main)
  - Crystal for subsystem clock
  - Main system clock frequency 1-10 MHz (3 MHz at 1.8 V, 10 MHz at 2.7 V)
  - Subsystem clock frequency: 32.768 kHz
  - CPU clock divider (1/1, 1/2, 1/8, 1/16)
• Two Power-Down Modes
  - Idle (only CPU clock stops)
  - Stop (System clock stops)
• Interrupts
  - 6 level 8 vector 8 internal interrupt
  - 2 level 8 vector 8 external interrupt
• 45 I/O Pins
  - 45 configurable I/O pins
• Basic Timer
  - Overflow signal makes a system reset.
  - Watchdog function
• 8-Bit Timer/Counter A
  - Programmable 8-bit timer
  - Interval, capture, PWM mode
  - Match/capture, overflow interrupt
• 8-Bit Timer/Counter B
  - Programmable 8-bit timer
  - Carrier frequency generator
• 16-Bit Timer/Counter 0
  - Programmable 16-bit timer
  - Match interrupt generates
• 16-Bit Timer/Counter 1
  - Programmable 16-bit timer
  - Interval, capture, PWM mode
  - Match/capture, overflow interrupt
• Watch Timer
  - Real-time and interval time measurement
  - Clock generation for LCD
  - Four frequency outputs for buzzer sound
• LCD Controller/Driver
  - Maximum 16-digit LCD direct drive capability
  - Display modes: static, 1/2 duty (1/2 bias)
  - 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias)
• A/D Converter
  - Eight analog input channels
  - 50 ms conversion speed at 1 MHz fADC clock
  - 10-bit conversion resolution
• 8-Bit Serial I/O Interface
  - 8-bit transmit/receive mode
  - 8-bit receive mode
  - LSB-first/MSB-first transmission selectable
  - Internal/external clock source
• Voltage Booster
  - LCD display voltage supply
  - S/W control en/disable
  - 3.0 V drive
• Voltage Detector
  - Programmable detection voltage (2.2 V, 2.4 V, 3.0 V, 4.0 V)
  - En/Disable S/W selectable
• Instruction Execution Times
  - 400 ns at 10 MHz (main)
  - 122 us at 32.768 kHz (subsystem)
• Operating Temperature Range
  - -25 °C to 85 °C
• Operating Voltage Range
  - 1.8 V to 5.5 V
• Package Type
  - 80-QFP-1420C
  - 80-TQFP-1212