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S3P7238

Part Number	S3P7238
Manufacturer	Samsung semiconductor
Description	The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core/ SAM47 (Samsung Arrange
Published	Apr 7, 2005
Detailed Description	S3C7238/P7238/C7235/P7235 PRODUCT OVERVIEW 1 OVERVIEW PRODUCT OVERVIEW The S3C7238/C7235 single-chip CMOS microcontr...
Datasheet	S3P7238 PDF File

Overview

S3C7238/P7238/C7235/P7235 PRODUCT OVERVIEW 1 OVERVIEW PRODUCT OVERVIEW 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.
Up 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.
OTP 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.
1-1 PRODUCT OVERVIEW S3C7238/P7238/C7235/P7235 FEATURES Memory – – – 512 × 4-bit RAM 8 K × 8-bit ROM (S3C7238/P7238) 16 K × 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 Memory-Mapped I/O Structure – Data memory bank 15 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 (1/2 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 osci...

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