National Semiconductor COP404C Data Sheet
Summary
The COP404C is a robust, low-power 8-bit ROMless CMOS microcontroller designed for flexible development and debugging of embedded systems. This device maintains core functionality equivalent to other members of the COP family while featuring added power management modes (IDLE and HALT). It supports external memory expansion, vectored interrupts, and compatibility with standard interfaces like MICROBUS. Ideal for engineers working on prototype stages or low-volume applications where program flexibility is critical. The accompanying documentation covers detailed specifications, electrical characteristics, peripheral timings, and functional guides for implementation.
Manual Details
| Brand | National |
|---|---|
| Pages | 18 |
| File Size | 337.84 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What types of CPUs can the COP404C emulate or support?
It is designed to function as a COP444C, COP424C, and also supports true vectored interrupt plus restart capability.
What operating voltage range does this microcontroller utilize?
The device operates using single supply and functions within a voltage range of 2.4V to 5.5V.
How low is the power consumption when in an idle state?
In HALT mode at 2.4V, the current draw is specified as 6mA (at 25C).
What bus systems or family members are compatible with this device?
It is LSTTL/CMOS compatible and also supports TM MICROBUS and other members of the COP400 family.