|Category||Microcontrollers => 8 bit => S3C8(KS88) Series|
|Description||Description = S3C8849 The Single-chip 8-bit Microcontroller ;; ROM(KB) = 24,32 ;; RAM(bytes) = 272 ;; I/o Pins = 26 ;; Interrupt (Int/Ext) = 5/4 ;; Timer/counters = BT/WDT/8Tx2 ;; Serial Interface = - ;; LCD (Seg/Com) = - ;; ADC (BitxCh) = 4x4 ;; PWM(BitxCh) = 14x2,8x4(8x1) ;; Max. OSC.Freq. (MHz) = 8 ;; VDD(V) = 4.5~5.5 ;; Other Features = OSD(384Fonts) ;; Package = 42SDIP ;; Production Status = Mass Production|
|Company||Samsung Semiconductor, Inc.|
|Datasheet||Download S3C8849 datasheet
Samsung's SAM87 family 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. Important CPU features include: Efficient register-oriented architecture Selectable CPU clock sources Release of Idle and Stop power-down modes by interrupt Built-in basic timer circuit 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 six CPU clocks) can be assigned to specific interrupt levels.
The S3C8847 microcontroller has a 24-Kbyte on-chip program memory and the S3C8849 has a 32-Kbyte. Both chips have a 272-byte general-purpose internal register file. The interrupt structure has nine interrupt sources with nine interrupt vectors. The CPU recognizes seven interrupt priority levels. Using a modular design approach, the following peripherals were integrated with the SAM87 core to make the S3C8847/C8849/P8849 microcontrollers suitable for use in color television and other types of screen display applications: Four programmable I/O ports (26 pins total: 16 general-purpose I/O pins; 10 n-channel, open-drain output pins) 4-bit resolution A/D converter (4 channels) 14-bit PWM output (Two channels: push-pull type, open-drain type) Basic timer (BT) with watchdog timer function One 8-bit timer/counter (T0) with interval timer and PWM mode One 8-bit general-purpose timer/counter (TA) with prescalers On-screen display (OSD) with a wide range of programmable features, including halftone control signal output The S3C8847 and the S3C8849 are available in versatile 42-pin SDIP package.
The S3C8847/C8849 microcontrollers are also available in OTP (One Time Programmable) version, named the S3P8849. The S3P8849 microcontroller has an on-chip 32-Kbyte one-time-programmable EPROM instead of a masked ROM. The KS88P8432 is comparable to the S3C8847/C8849, both in function and pin configuration.FEATURES
CPU SAM87 CPU core Pulse Width Modulation Module 14-bit PWM with two-channel output (push-pull type, open-drain type) 8-bit PWM with four-channel, push-pull and opendrain PWM counter and data capture input pin Frequency: 5.859 kHz to 23.437 kHz with a 6 MHz CPU clockMemory 32-Kbyte (S3C8849) internal program memory 272-byte general-purpose register area
Instruction Set 78 instructions IDLE and STOP instructions added for powerdown modes
On-Screen Display (OSD) Video RAM: × 13-bits Character generator ROM: 16-bits (384 display characters; fixed; 2, variable; 382) 252 display positions (12 rows × 21 columns) × 18-dot character resolution 16 different character sizes Eight character colors Vertical direction fade-in/fade-out control Eight colors for character and frame background Halftone control signal output; selectable for individual characters Synchronous polarity selector for H-sync and V-sync inputInstruction Execution Time 750 ns (minimum) with an 8 MHz CPU clock
Interrupts 9 interrupt sources with 9 vectors 7 interrupt levels Fast interrupt processing for select levels
General I/O Four I/O ports (26 pins total) Six open-drain pins for 6 V loads Four open-drain pins for 5 V loads
8-Bit Basic Timer Three selectable internal clock frequencies Watchdog or oscillation stabilization functionOscillator Frequency 5 MHz to 8 MHz external crystal oscillator Maximum 8 MHz CPU clock
Timer/Counters One 8-bit timer/counter (T0) with three internal clocks or an external clock and interval timer mode or PWM mode. One general-purpose 8-bit timer/counters with interval timer mode (timer A)A/D Converter Four analog input pins; 4-bit resolution 3.125 µs conversion time (8 MHz CPU clock)
OSC IN OSC OUT H-sync V-sync Vred Vgreen Vblue Vblank OSDHT
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