Details, datasheet, quote on part number: S3C7238
PartS3C7238
CategoryMicrocontrollers => 4 bit => S3C7(KS57) Series
TitleS3C7(KS57) Series
DescriptionDescription = S3C7238 Single-chip CMOS Microcontroller ;; ROM(KB) = 8 ;; RAM Nibble = 512 ;; I/o Pins = 40 ;; Interrupt (Int/Ext) = 3/3 ;; Timer/counters = BT/WT/WDT/8T ;; Sio = Yes ;; LCD (Seg/Com) = 32/4 ;; ADC (BitxCh) = - ;; PWM(BitxCh) = - ;; Max. OSC.Freq. (MHz) = 6 ;; VDD(V) = 1.8~5.5 ;; Other Features = RC Osc.,subsystem Clock,buzzer Output ;; Package = 80QFP ;; Production Status = Mass Production
CompanySamsung Semiconductor, Inc.
DatasheetDownload S3C7238 datasheet
  

 

Features, Applications

The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsung's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers). With features such as LCD direct drive capability, 8-bit timer/counter, and serial I/O, the S3C7238/C7235 offer an excellent design solution for a wide variety of applications that require LCD functions. to 40 pins of the 80-pin QFP package can be dedicated to I/O. Six vectored interrupts provide fast response to internal and external events. In addition, the S3C7238/C7235's advanced CMOS technology provides for low power consumption and a wide operating voltage range.

The S3C7238/C7235 microcontroller is also available in OTP (One Time Programmable) version, S3P7238/P7235. S3P7238/P7235 microcontroller has an on-chip 8/16-Kbyte one-time-programmable EPROM instead of masked ROM. The S3P7238/P7235 is comparable to S3C7238/C7235, both in function and in pin configuration.

FEATURES

Memory 4-bit RAM 8-bit ROM 8-bit ROM (S3C7235/P7235) Bit Sequential Carrier Support 16-bit serial data transfer in arbitrary format

Interrupts Three internal vectored interrupts Three external vectored interrupts Two quasi-interrupts

I/O Pins Input only: 8 pins I/O: 24 pins Output: 8 pins sharing with segment driver outputs

LCD Controller/Driver Maximum 16-digit LCD direct drive capability 32 segment, 4 common pins Display modes: Static, 1/2 duty (1/2 bias), 1/3 duty or 1/3 bias), 1/4 duty (1/3 bias)

Two Power-Down Modes Idle mode (only CPU clock stops) Stop mode (main or sub system oscillation stops)

8-Bit Basic Timer Programmable interval timer Watchdog timer

Oscillation Sources Crystal, ceramic, or RC for main system clock Crystal or external oscillator for subsystem clock Main system clock frequency: 4.19 MHz (typical) Subsystem clock frequency: 32.768 kHz CPU clock divider circuit (by or 64)

8-Bit Timer/Counter Programmable 8-bit timer External event counter Arbitrary clock frequency output Serial I/O interface clock generator

Watch Timer Real-time and interval time measurement Four frequency outputs to BUZ pin Clock source generation for LCD

8-Bit Serial I/O Interface 8-bit transmit/receive mode 8-bit receive only mode LSB-first or MSB-first transmission selectable Internal or external clock source

4-Bit Accumulator Internal Interrupts I/O Port 0 Program Counter
FLAGS Arithmetic and Logic Unit Stack Pointer

 

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S3C72C8 Description = S3C72C8 Single-chip CMOS Microcontroller ;; ROM(KB) = 8 ;; RAM Nibble = 512 ;; I/o Pins = 28 ;; Interrupt (Int/Ext) = 4/5 ;; Timer/counters = BT/WT/WDT/16T ;; Sio = Yes ;; LCD (Seg/Com) = 12/8
S3C72E8 Description = S3C72E8 4-bit CMOS Single-chip Microcontroller ;; ROM(KB) = 8 ;; RAM Nibble = 5228 ;; I/o Pins = 39 ;; Interrupt (Int/Ext) = 2/3 ;; Timer/counters = BT/WT/8T ;; Sio = - ;; LCD (Seg/Com) = 60/9
S3C72F5 Description = S3C72F5 Single-chip CMOS Microcontroller ;; ROM(KB) = 16 ;; RAM Nibble = 768 ;; I/o Pins = 39 ;; Interrupt (Int/Ext) = 4/4 ;; Timer/counters = BT/WT/WDT/8T/16T ;; Sio = Yes ;; LCD (Seg/Com)
S3C72G9 Description = S3C72G9 Single-chip CMOS Microcontroller ;; ROM(KB) = 32 ;; RAM Nibble = 992 ;; I/o Pins = 12 ;; Interrupt (Int/Ext) = 3/4 ;; Timer/counters = BT/WT/WDT/16T ;; Sio = - ;; LCD (Seg/Com) = 56/16
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