COP8SAC720N8

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COP8SAC720N8 Application Field and Working Principle

The COP8SAC720N8 is an 8-bit CMOS microcontroller from the family of devices from IDT (formerly National Semiconductor) known as the COP800 family. These devices are primarily used in the embedded systems field, where a small device is needed to control a system. The COP8SAC720N8 has 16k EPROM, plus 5k volatile RAM, as well as a Pulse Width Modulation (PWM) module, as well as a variety of input and output ports and timers.

The COP8SAC720N8 offers quite a bit of processing power in a small device. It runs at up to 16Mhz and can easily support the data-intensive operations found in more advanced embedded systems. With a 16-bit address bus and 8-bit data bus, it offers the ability to easily address memory, as well as timed interrupts, which are useful for handling digital inputs and outputs (DIOs).

Inputs and Outputs

The COP8SAC720N8 features 16 DIOs, including 8-bits of general digital I/O with interrupt capability, and 8-bit analog peripheral I/O. This allows it to be used in a variety of applications, from communications protocols to standard digital input or output devices. The use of the DIOs can be varied depending on their configuration. The device also supports a variety of analog inputs and outputs, including I2C, SPI, UART and other serial interfaces.

Power and Memory

The COP8SAC720N8 can operate at a voltage range of 3V to 5.5V and requires a minimum of 10mA of current supply. The device comes with 16k of on-chip masked ROM plus 5k of volatile RAM, which is an adequate amount of flash memory and RAM for most embedded applications. It also offers 4192 bytes of on-chip static RAM.

Instruction Set

The COP8SAC720N8 also features a powerful instruction set, including ALU, immediate data movement, data movement with auto indexing and repetitive operations. This allows the device to perform shifting operations and compare data with minimal effort. It also features a helpful variety of interrupt sources and features, such as programmable and non-programmable interrupt vectors, which can be used to direct the flow of data processing.

Interfacing to External Devices

The COP8SAC720N8 is capable of interfacing to external devices through its peripheral I/O, and provides a number of debug and test pins on the device. This allows it to be tested and debugged quickly, and makes troubleshooting much easier. The device also offers a number of special features, such as watchdog timer reset capabilities and software selectable wait states.

Application Examples

The COP8SAC720N8 is well suited to a variety of applications, both low and medium-end embedded systems.

• It is often used in simple motor control applications, driving stepper motors and servos.
• The pulse width modulation (PWM) feature of the device makes it an ideal choice for home automation and digital switch implementations.
• It has been used as the controller for basic telemetry applications and even for security systems.
• It is also used in simple communications applications, such as radios and digital cellular phones.

Conclusion

The COP8SAC720N8 is a powerful 8-bit CMOS microcontroller with a wide range of features and capabilities. Its input and output capabilities, instruction set and power requirements make it ideal for a number of embedded applications. It is easy to debug and test, and its adaptability makes it a great choice for low and medium-end embedded systems.

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