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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 or reset
• 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.

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X MICROCONTROLLER
The S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X single-chip CMOS microcontrollers are fabricated using the highly advanced CMOS process, based on SAMSUNG's latest CPU architecture.

The S3C8275X/C8278X/C8274X is a microcontroller with a 16/8/4K-byte mask-programmable ROM embedded.

The S3F8275X/F8278X/F8274X is a microcontroller with a 16/8/4K-byte flash ROM embedded.

Using a proven modular design approach, SAMSUNG engineers have successfully developed the S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X by integrating the following peripheral modules with the powerful SAM8 core:

• Seven programmable I/O ports, including six 8-bit ports and one 4-bit port, for a total of 52 pins.
• Eight bit-programmable pins for external interrupts.
• One 8-bit basic timer for oscillation stabilization and watchdog function (system reset).
• Two 8-bit timer/counter with selectable operating modes.
• Watch timer for real time

FLASH
The S3F8275X/F8278X/F8274X are FLASH version of the S3C8275X/C8278X/C8274X microcontroller. The S3F8275X/F8278X/F8274X microcontroller has an on-chip FLASH ROM instead of a masked ROM. The S3F8275X/F8278X/F8274X is comparable to the S3C8275X/C8278X/C8274X, both in function and in pin configuration. The S3F8275X only is a full flash. The full flash means that data can be written into the program ROM by an instruction.

• CPU
  - SAM88RC CPU core
• Memory
  - Program Memory(ROM)
  - 16Kx8 bits program memory(S3C8275X/F8275X)
  - 8Kx8 bits program memory(S3C8278X/F8278X)
  - 4Kx8 bits program memory(S3C8274X/F8274X)
  - Internal flash memory(Program memory)
  - Sector size: 128 Bytes
  - 10 Years data retention
  - Fast programming time:
  + Chip erase: 50ms
  + Sector erase: 10ms
  + Byte program: 30us
  - User programmable by 'LDC' instruction
  - Endurance: 10,000 erase/program cycles
  - Sector(128-bytes) erase available
  - Byte programmable
  - External serial programming support
  - Expandable OBPTM(On board program) sector
  - Data Memory (RAM)
  - Including LCD display data memory
  - 544 x 8 bits data memory(S3C8275X/F8275X)
  - 288 x 8 bits data memory(S3C8278X/F8278X)
  - 288 x 8 bits data memory(S3C8274X/F8274X)
• Instruction Set
  - 78 instructions
  - Idle and Stop instructions added for power-down modes
• 52 I/O Pins
  - I/O: 16 pins
  - I/O: 36 pins (Sharing with LCD signal outputs)
• Interrupts
  - 8 interrupt levels and 12 interrupt sources
  - Fast interrupt processing feature
• 8-Bit Basic Timer
  - Watchdog timer function
  - 4 kinds of clock source
• Two 8-Bit Timer/Counters
  - Programmable interval timer
  - External event counter function
  - Configurable as one 16-bit timer/counters
• Watch Timer
  - Interval time: 3.91mS, 0.25S, 0.5S, and 1S at 32.768 kHz
  - 0.5/1/2/4 kHz Selectable buzzer output
• LCD Controller/Driver
  - 32 segments and 4 common terminals
  - Static, 1/2 duty, 1/3 duty, and 1/4 duty selectable
  - Internal resistor circuit for LCD bias
• 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
• Battery Level Detector
  - 3-criteria voltage selectable (2.2V, 2.4V, 2.8V)
  - En/Disable by software for current consumption source
• Low Voltage Reset (LVR)
  - Criteria voltage: 2.2V
  - En/Disable by smart option (ROM address: 3FH)
• Two Power-Down Modes
  - Idle: only CPU clock stops
  - Stop: selected system clock and CPU clock stop
• Oscillation Sources
  - Crystal, ceramic, or RC for main clock
  - Main clock frequency: 0.4 MHz - 8 MHz
  - 32.768 kHz crystal for sub clock
• Instruction Execution Times
  - 500nS at 8 MHz fx(minimum)
• Operating Voltage Range
  - 2.0 V to 3.6 V at 0.4 - 4.2 MHz
  - 2.5 V to 3.6 V at 0.4 - 8.0 MHz
• Operating Temperature Range
  - −25 °C to +85 °C
• Package Type
  - 64-QFP-1420F, 64-LQFP-1010
• Smart Option
  - Low Voltage Reset(LVR) level and enable/disable are at your hardwired option (ROM address 3FH)
  - ISP related option selectable (ROM address 3EH)