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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 interrupts
• 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.

S3F84UA/F84U8 MICROCONTROLLER
The S3F84UA/F84U8 single-chip CMOS microcontrollers are fabricated using the highly advanced CMOS process, based on Samsung's newest CPU architecture.
The S3F84UA, S3F84U8 are a microcontroller with a 48K-byte, 8K-byte Flash ROM embedded respectively.
The S3F84UA is a microcontroller with a 48K-byte Flash ROM embedded.
The S3F84U8 is a microcontroller with a 8K-byte Flash ROM embedded.
Using a proven modular design approach, Samsung engineers have successfully developed the S3F84UA/F84U8 by integrating the following peripheral modules with the powerful SAM8 core:

• Five programmable I/O ports, including four 8-bit ports, and one 4-bit port, for a total of 36 pins
• Eight bit-programmable pins for external interrupts
• One 8-bit basic timer for oscillation stabilization and watchdog functions (system reset)
• Three 8-bit timer/counter and two 16-bit timer/counter with selectable operating modes
• Watch timer for real time
• LCD Controller/driver
• A/D converter with 8 selectable input pins
• Synchronous SIO modules
• Two asynchronous UART modules
• Pattern generation module

They are currently available in 44-pin-QFP and 42-pin-SDIP package.

• CPU
  - SAM88 RC CPU core
• Memory
  - Program Memory (ROM)
  - 48K x 8 bits program memory(S3F84UA)
  - 8K x 8 bits program memory(S3F84U8)
  - Internal flash memory (program memory)
  √ Sector size : 128 bytes
  √ 10 years data retention
  √ Fast programming time :
  √ User program and sector erase available
  √ Endurance : 10,000 erase/program cycles
  √ External serial programming support
  √ Expandable OBPTM (on board program) sector
  - Data Memory (RAM)
  - Including LCD display data memory
  - 550 x 8 bits data memory(S3F84UA)
  - 294 x 8 bits data memory(S3F84U8)
• Instruction Set
  - 78 instructions
  - Idle and stop instructions added for power-down modes
• 34 I/O Pins
  - Output : 2 pins (44-QFP only)
  - I/O : 10 pins (Sharing with other signal pins)
  - I/O : 24 pins (Sharing with LCD signal outputs)
• Interrupts
  - 8 interrupt levels and 22 interrupt sources
  - Fast interrupt processing feature
• 8-Bit Basic Timer
  - Watchdog timer function
  - 4 kinds of clock source
• 8-Bit Timer/Counter A
  - Programmable 8-bit internal timer
  - External event counter function
  - PWM and capture function
• 8-Bit Timer/Counter B
  - Programmable 8-bit internal timer
  - Carrier frequency generator
• 8-Bit Timer/Counter C
  - Programmable 8-bit internal timer
  - PWM function
• Two 16-Bit Timer/Counter (D0/D1)
  - Programmable 16-bit internal timer
  - External event counter function
  - PWM and capture function
• Watch Timer
  - Interval time: 1.995mS, 0.125S, 0.25S, and 0.5S at 32.768 kHz
  - 0.5/1/2/4 kHz Selectable buzzer output
• LCD Controller/Driver
  - 16 segments and 8 common terminals
  - 1/2, 1/3, 1/4, and 1/8 duty selectable
  - Resistor bias selectable
• Analog to Digital Converter
  - 8-channel analog input
  - 10-bit conversion resolution
  - 25uS conversion time
• Two Channels UART
  - Full-duplex serial I/O interface
  - Four programmable operating modes
  - Auto generating parity bit
• 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
• Pattern Generation Module
  - Pattern generation module triggered by timer match signal and software
• 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 - 12.0 MHz
  - 32.768 kHz crystal oscillation circuit for sub clock
• Instruction Execution Times
  - 333nS at 12.0 MHz fx (minimum)
  - 122.1uS at 32.768 kHz fxt (minimum)
• Operating Voltage Range
  - 2.0 V to 5.5 V at 0.4 - 4.2 MHz
  - 2.7 V to 5.5 V at 0.4 - 12.0 MHz
• Operating Temperature Range
  - -40°C to +85°C
• Package Type
  - 40-QFP-1010B, 42-SDIP-600
• IVC
  - Internal Voltage Converter for 5V operations
• 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)