Pinout Package Thermal Specifications ELECTRICAL SPECIFICATIONS Absolute Maximum Ratings PAGE
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CONTENTS
Recommended Connections DC SPECIFICATIONS ICC versus Frequency and Voltage PDTMR Pin Delay Calculation AC SPECIFICATIONS AC Characteristics 80C18
Features
a crystal oscillator a divideby-two counter and three low-power operating modes The oscillator circuit is designed to be used with either a parallel resonant fundamental or third-overtone mode crystal network Alternatively the oscillator circuit may be driven from an external clock source Figure 2 shows the various operating modes of the oscillator circuit The crystal or clock frequency chosen must be twice the required processor operating frequency due to the internal divide-by-two counter This.
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80C186EC 80C188EC AND 80L186EC 80L188EC 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
X Fully Static Operation X True CMOS Inputs and Outputs
Y
Integrated Feature Set Low-Power Static Enhanced 8086 CPU Core Two Independent DMA Supported UARTs each with an Integral Baud Rate Generator Four Independent DMA Channels 22 Multiplexed I O Port Pins Two 8259A Compatible Programmable Interrupt Controllers Three Programmable 16-Bit Timer Counters 32-Bit Watchdog Timer Ten Programmable Chip Selects with Integral Wait-State Generator Memory Refresh Control Unit Power Management Unit On-Chip Oscillator System Level Testing Support (ONCE Mode) Direct Addressing Capability to 1 Mbyte Memory and 64 Kbyte I O Low-Power Operating Modes Idle Mode Freezes CPU Clocks but Keeps Peripherals Active Powerdown Mode
80C188EC Datasheet
