S3P7544 - Single-chip CMOS microcontroller/ 512 x 4-bit RAM/ 4096 x 8-bit ROM
Table 1-1.
S3C7544 Pin Descriptions Pin Name P0.0 P0.1 P0.2 P0.3 P1.0 P1.1 P1.2 P1.3 P2.0 Pin Type I Description 4-bit I/O port.
1- or 4-bit read/write and test is possible.
Pull-up resistors are assignable to input pins by software and are automatically disabled for output pins.
Pins are individua
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 t
S3P7544 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 W
