Intel 80C188EA, 80L186EA, 80L188EA, 80C186EA specifications Contentspage

Models: 80L186EA 80L188EA 80C186EA 80C188EA

1 50
Download 50 pages 36.73 Kb
Page 2
Image 2

80C186EA/80C188EA, 80L186EA/80L188EA

80C186EA/80C188EA AND 80L186EA/80L188EA 16-Bit High Integration Embedded Processor

CONTENTSPAGE

INTRODUCTION ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 4

80C186EA CORE ARCHITECTURE ÀÀÀÀÀÀÀ 4 Bus Interface Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 4 Clock Generator ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 4

80C186EA PERIPHERAL ARCHITECTURE ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 5

Interrupt Control Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 5 Timer/Counter Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 5 DMA Control Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 7 Chip-Select Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 7 Refresh Control Unit ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 7 Power Management ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 7 80C187 Interface (80C186EA Only) ÀÀÀÀÀÀÀÀÀ 8 ONCE Test Mode ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 8

DIFFERENCES BETWEEN THE 80C186XL AND THE 80C186EA ÀÀÀÀÀÀÀÀ 8

Pinout Compatibility ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 8 Operating Modes ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 8 TTL vs CMOS Inputs ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 8 Timing Specifications ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 8

PACKAGE INFORMATION ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 9 Prefix Identification ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 9 Pin Descriptions ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 9 80C186EA Pinout ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 15

CONTENTSPAGE

PACKAGE THERMAL SPECIFICATIONS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 20

ELECTRICAL SPECIFICATIONS ÀÀÀÀÀÀÀÀÀ 21 Absolute Maximum Ratings ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 21 Recommended Connections ÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 21

DC SPECIFICATIONS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 22 ICC versus Frequency and Voltage ÀÀÀÀÀÀÀÀÀ 24 PDTMR Pin Delay Calculation ÀÀÀÀÀÀÀÀÀÀÀÀÀ 24

AC SPECIFICATIONS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 25 AC Characteristics—80C186EA20/13ÀÀÀÀÀ 25 AC Characteristics—80L186EA13/8ÀÀÀÀÀÀÀ 27 Relative Timings ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 29

AC TEST CONDITIONS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 30

AC TIMING WAVEFORMS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 30

DERATING CURVES ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 33

RESET ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 33

BUS CYCLE WAVEFORMS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 36

EXECUTION TIMINGS ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 43

INSTRUCTION SET SUMMARY ÀÀÀÀÀÀÀÀÀÀ 44

REVISION HISTORY ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 50

ERRATA ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ 50

2

2

Page 2
Image 2
Intel 80C188EA, 80L186EA, 80L188EA, 80C186EA specifications Contentspage

80L186EA, 80L188EA, 80C186EA, 80C188EA specifications

The Intel 80C188EA, 80C186EA, 80L188EA, and 80L186EA microprocessors represent significant developments in the realm of embedded computing during the 1980s. These processors are part of Intel's x86 architecture, designed to cater to a variety of industrial applications, including automotive and telecommunications.

The 80C188EA and 80C186EA are CMOS variants that offer enhanced power efficiency and reduced heat generation compared to their NMOS predecessors. Operating at clock speeds of up to 25 MHz, these processors are known for their performance in real-time applications. The 80C188EA features a 16-bit data bus and a 16-bit address bus, which can support up to 1 MB of addressable memory. It also boasts an extended instruction set for greater computing flexibility, making it suitable for intricate tasks in embedded systems.

Similarly, the 80C186EA is characterized by its 16-bit architecture, but it includes additional on-chip memory management capabilities. This processor can handle 256 KB of memory directly and supports paged memory management, facilitating efficient multitasking and resource sharing in complex applications. Its integrated DMA controller and interrupt controller allow for superior handling of peripheral devices, making it ideal for real-time processing requirements.

On the other hand, the 80L188EA and 80L186EA are low-power variants optimized for battery-operated designs. These microprocessors are tailored for applications where power consumption is critical. The 80L188EA retains the essential features of the 80C188EA but operates at lower voltage levels, thus allowing for longer operational life in portable devices. The 80L186EA similarly benefits from reduced power consumption, taking advantage of its energy-efficient design to enhance durability in industrial automation scenarios.

All four processors leverage Intel's established x86 architecture, enabling a wide range of software compatibility. Their built-in support for real-time interrupt handling and I/O operations provides developers with valuable tools for building reliable embedded systems. Additionally, they feature on-chip oscillators and timers, further streamlining design requirements and reducing the need for external components.

Overall, the Intel 80C188EA, 80C186EA, 80L188EA, and 80L186EA processors are ideal for diverse applications in embedded systems. Their blend of processing power, energy efficiency, and versatility continues to influence the design of modern electronic devices, underscoring Intel's pivotal role in advancing microprocessor technology.