NS486SXF Datasheet, PDF (2/44 Pages) National Semiconductor (TI) – NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

Table of Contents
1 0 SYSTEM OVERVIEW
1 1 NS486SXF System Overview
1 2 32-bit Processor Core
1 3 System Service Elements
1 3 1 DRAM Controller
1 3 2 DMA Controller
1 3 3 Programmable Interval Timer
1 3 4 WATCHDOG Timer
1 3 5 Interrupt Controller
1 3 6 Real Time Clock Calendar
1 3 7 Power Management Features
1 4 NS486SXF System Bus
1 5 Other On-board Peripherals
1 5 1 Reconfigurable I O Lines
1 5 2 IEEE 1284 Bidirectional Port
1 5 3 PCMCIA Interface
1 5 4 MICROWIRE Access bus Interface
1 5 5 UART Serial Port
1 5 6 LCD Controller
1 6 ICE Support
1 7 Other Issues
2 0 PIN DESCRIPTION TABLES
3 0 DEVICE SPECIFICATIONS
3 1 DC Electrical Specifications 5V g 5%
3 1 1 Recommended Operating Conditions
3 1 2 Absolute Maximum Ratings (Notes 2 and 3)
3 1 3 Capacitance T_A e 25 C f e 1 MHz
3 1 4 DC Characteristics
3 2 General AC Specifications
3 2 1 Power Ramp Times
3 2 2 PWRGOOD and Power Rampdown Timing
3 3 AC Switching Specifications
3 3 1 DRAM Interface Timing Specification
3 3 2 ISA-like Bus Cycles Timing Specification
3 3 3 Ready Feedback Timing Specifications
3 3 4 OSCX1 AC Specification
3 3 5 Peripheral Timing Specifications
3 4 Physical Description
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