NSC800D中文资料NSC800™ High-Performance Low-Power CMOS Microprocessor数据手册TI规格书

描述 Description

General Description
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.

特性 Features

Fully compatible with Z80Éinstruction set:
   Powerful set of 158 instructions
   10 addressing modes
   22 internal registers
Low power: 50 mW at 5V VCC
Unique power-save feature
Multiplexed bus structure
Schmitt trigger input on reset
On-chip bus controller and clock generator
Variable power supply 2.4Vb6.0V
On-chip 8-bit dynamic RAM refresh circuitry
Speed: 1.0ms 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
Capable of addressing 64k bytes of memory and 256 I/O devices
Five interrupt request lines on-chip