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S3F8235

更新时间:2010.11.18 文件大小:4MB 查看次数:
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General Description
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. The major CPU features are:
  • Efficient register-oriented architecture
  • Selectable CPU clock sources
  • Idle and Stop power-down mode released 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.

S3C8235B/F8235B MICROCONTROLLER
The S3C8235B/F8235B single-chip CMOS microcontrollers are fabricated using the highly advanced CMOS process, based on Samsung's latest CPU architecture.
The S3C8235B is a microcontroller with a 16K-byte mask-programmable ROM embedded.
The S3F8235B is a microcontroller with a 16K-byte Flash ROM embedded.
Using a proven modular design approach, Samsung engineers have successfully developed the S3C8235B/F8235B by integrating the following peripheral modules with the powerful SAM8 core:
  • Five programmable I/O ports, including three 8-bit ports and two 4-bit ports, for a total of 32 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 and one 16-bit timer/counter with selectable operating modes.
  • Watch timer for real time
  • 8-channel A/D converter
The S3C8235B/F8235B is versatile microcontroller for camera, LCD and ADC application, etc. They are currently available in 64-pin LQFP and 64-pin QFP package.
Features
  • CPU
    - SAM88RC CPU core
  • Memory
    - 552-byte internal register file (including LCD display RAM)
    - 16K-byte program memory
  • Oscillation Sources
    - Crystal, Ceramic or RC for main clock
    - Crystal for sub clock (32.768 kHz)
    - CPU clock divider (1/1, 1/2, 1/8, 1/16)
  • Instruction Set
    - 78 instructions
    - Idle and Stop instructions
  • Instruction Execution Time
    - 500ns at fx = 8 MHz (minimum, main clock)
    - 122ms at fxt = 32.768 kHz (sub clock)
  • Interrupts
    - 8 interrupt levels and 16 internal source
  • 32 I/O Ports
    - 16 normal I/O pins
    - 16 pins sharing with LCD signals
  • Timers and Timer/Counters
    - One programmable 8-bit basic timer (BT) for oscillation stabilization control or watchdog timer function
    - One 8-bit timer/counter (Timer A) with three operating modes; Interval mode, capture mode and PWM mode.
    - One 8-bit timer/counter (Timer B)
  • Carrier frequency (or PWM) generator.
    - One 16-bit capture timer/counter (Timer 1) with two operating modes; Interval mode, Capture mode for pulse period or duty.
  • Watch Timer
    - Interval Time: 3.19ms, 0.25s, 0.5s, 1.0s at 32.768 kHz
    - 0.5/1/2/4 kHz buzzer output selectable
  • LCD Controller/Driver
    - 24 segments and 8 common terminals
    - 4 and 8 common selectable
    - Internal resistor circuit for LCD bias
  • Analog to Digital Converter
    - 8-channel analog input
    - 10-bit conversion resolution
    - 25ms conversion
  • Voltage Booster
    - LCD drive voltage supply
    - S/W control (Enable/Disable)
  • Low Voltage Reset(LVR)
    - Low Voltage Check to make system reset
    - VLVR = 2.3V/2.8V/3.7V
  • Pattern Generation Module
    - Pattern generation module triggered by timer match signal and S/W.
  • Voltage Detector for Indication
    - Voltage Detector to indicate specific voltage.
    - S/W control (2.35V, 3.3V, 4.5V)
  • Key Strobe Mode
    - Support automatic key strobe output with LCD driver(Maximum 4 x 12 key matrices)
  • Two Power-Down Modes
    - Idle mode: only CPU clock stops
    - Stop mode: system clock and CPU stop
  • Operating Temperature Range
    - -25°C to + 85°C
  • Operating Voltage Range
    - 2.0 V to 5.5 V at 4 MHz (main clock)
    - 2.7 V to 5.5 V at 8 MHz (main clock)
    - 2.0 V to 5.5 V at 32.768 kHz (sub clock)
  • 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 3EH,3FH)
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