S3P7544

S3C7544/P7544 PRODUCT OVERVIEW 1 PRODUCT OVERVIEW OVERVIEW The S3C7544 single-chip CMOS microcontroller is designed for high-performance using Samsung's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers). With a versatile 8-bit timer/counter and a D/A converter, the S3C7544 offers an excellent design solution for a wide variety of telecommunication applications. Up to 17 pins of the 24-pin SDIP package can be dedicated to I/O. Four vectored interrupts provide fast response to internal and external events. In addition, the S3C7544’s advanced CMOS technology has realized substantially lower power consumption with a wide operating voltage range — all at a substantially lower cost. OTP The S3C7544 microcontroller is also available in OTP (One Time Programmable) version, S3P7544. S3P7544 microcontroller has an on-chip 4-Kbyte one-time-programmable EPROM instead of masked ROM. The S3P7544 is comparable to S3C7544, both in function and in pin configuration. 1-1 PRODUCT OVERVIEW S3C7544/P7544 FEATURES SUMMARY Memory 512 × 4-bit RAM 4096 × 8-bit ROM Bit Sequential Carrier Supports 16-bit serial data transfer in arbitrary format I/O Pins 17 pins I/O N-channel open-drain I/O: 8 pins 8-Bit Basic Timer Programmable interval timer Watchdog timer Power-Down Modes Idle mode (only CPU clock stops) Stop mode (system clock stops) Oscillation Sources Crystal, or ceramic for system clock Crystal, ceramic: 0.4–6.0 MHz CPU clock divider circuit (...