Hot-selling and scarce NSC800N-1 High-Performance Low-Power CMOS Microprocessor DIP40 spot stock

Product Descriptions

The NSC800 is an 8-bit CMOS microprocessor that functions as the central processing unit (CPU) in National Semiconductor’s NSC800 microcomputer family. National’s microCMOS technology used to fabricate this device provides system designers with performance equivalent to comparable NMOS products, but with the low power advantage of CMOS. Some of the many system functions incorporated on the device, are vectored priority interrupts, refresh control, power-save feature and interrupt acknowledge. The NSC800 is available in dual-in-line and surface mounted chip carrier packages.

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The system designer can choose not only from the dedicated CMOS peripherals that allow direct interfacing to the NSC800 but from the full line of National’s CMOS products to allow a low-power system solution. The dedicated peripherals include NSC810A RAM I/O Timer, NSC858 UART, and NSC831 I/O.

All devices are available in commercial, industrial and military temperature ranges along with two added reliability flows. The first is an extended burn in test and the second is the military class C screening in accordance with Method 5004 of MIL-STD-883.

Product Features

Y Fully compatible with Z80É instruction set:

Powerful set of 158 instructions

10 addressing modes

22 internal registers

Y Low power: 50 mW at 5V VCC

Y Unique power-save feature

Y Multiplexed bus structure

Y Schmitt trigger input on reset

Y On-chip bus controller and clock generator

Y Variable power supply 2.4Vb6.0V

Y On-chip 8-bit dynamic RAM refresh circuitry

Y Speed: 1.0 ms instruction cycle at 4.0 MHz

NSC800-4 4.0 MHz

NSC800-35 3.5 MHz

NSC800-3 2.5 MHz

NSC800-1 1.0 MHz

Y Capable of addressing 64k bytes of memory and 256

I/O devices

Y Five interrupt request lines on-chip

Product Photos

For more product information, please download the PDF