S3C7544 Datasheet - Samsung semiconductor

S3C7544 - 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

S3C7544 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

S3C7544_Samsungsemiconductor.pdf