S3C8639

CPU
• SAM88RC CPU core

Memory
• S3C8639: 32-Kbyte program memory (ROM)
   S3C863A: 48-Kbyte program memory (ROM)
   S3C8647: 24-Kbyte program memory (ROM)
• S3C8639: 784-byte general-purpose register area
   S3C863A: 1040-byte general-purpose register area
   S3C8647: 400-byte general-purpose register area

Instruction Set
• 78 instructions
• IDLE and STOP instructions added for power-down modes

Instruction Execution Time
• Minimum 333 ns (with 12 MHz CPU clock)

Interrupts
• Ten (nine)* interrupt sources/vectors (S3C8647)*
• Eight (seven)* interrupt level (S3C8647)*
• Fast interrupt feature

General I/O
• S3C863X: four I/O ports (total 27pins)
   S3C8647: three I/O ports (total 19pins)

8-Bit Basic Timer
• Programmable timer for oscillation stabilization interval control or watchdog timer function
• Three selective internal clock frequencies

Timer/Counters
• One 8-bit Timer/Counter with several clock sources (Capture mode)
• One 12-bit Counter with H-/C-sync and several clock sources
• One Interval Timer

Low Voltage Detector (LVD & POR)

Pulse Width Modulator (PWM)
• 8-bit PWM: 7(6)*-Ch (S3C8647)* (6-bit basic frame with 2-bit extension) Sync-Processor Block
• Vsync-I, Hsync-I, Csync-I input and Vsync-O, Hsync-O, Clamp-O output pins
• Programmable Pseudo sync signal generation
• Auto SOG detection
• Auto H-/V-sync polarity detection
• Composite sync detection

DDC Multi-Master IIC-Bus 1-Ch
• Serial Peripheral Interface
• Support for Display Data Channel (DDC1/DDC2B/DDC2Bi/DDC2B+)

Slave Only IIC-Bus 1-Ch (Only S3C863X)
• Serial Peripheral Interface

A/D Converter
• 4-channel; 8(4)*-bit resolution (S3C8647)*

Oscillator Frequency
• 8 MHz to 12 MHz crystal operation
• Internal Max. 12 MHz CPU clock

Operating Temperature Range
• 40 to + 85

Operating Voltage Range
• 3.0(4.0)* V to 5.5 V (S3C8647)*

Package Types
• S3C863X: 42-pin SDIP, 44-pin QFP
   S3C8647: 32-pin SDIP, 32-pin SOP

Samsung's SAM8 family of 8-bit single-chip CMOS microcontrollers S3C8639 offers a fast and efficient CPU with a wide range of integrated peripherals, in various mask-programmable ROM sizes. Analog S3C8639's 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

The sophisticated interrupt structure of S3C8639 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.

S3C8639 single-chip 8-bit microcontrollers are based on the powerful SAM8 CPU architecture. The internal register file is logically expanded to increase the on-chip register space. S3C8639/C863A/P863A contain 32/48 Kbytes of onchip program ROM.

In line with Samsung's modular design approach, the following peripherals of S3C8639 are integrated with the SAM8 core:
  - Four programmable I/O ports (total 27 pins)
  - One 8-bit basic timer for oscillation stabilization and watchdog functions
  - One 8-bit general-purpose timer/counter with selectable clock sources
  - One interval timer
  - One 12-bit counter with selectable clock sources, including Hsync or Csync input
  - PWM block with seven 8-bit PWM circuits
  - Sync processor block (for Vsync and Hsync I/O, Csync input, and Clamp signal output)
  - DDC Multi-master and slave-only IIC-Bus
  - 4-channel A/D converter (8-bit resolution)

S3C8639 are a versatile microcontrollers which are ideal for use in multi-sync monitors or in general-purpose applications that require sophisticated timer/counter, PWM, sync signal processing, A/D converter, and multi-master IIC-bus support with DDC. They are available in a 42-pin SDIP or a 44-pin QFP package.