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80296SA Datasheet(PDF) 3 Page - Intel Corporation |
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3 page 
PRELIMINARY iii CONTENTS 80296SA Commercial CHMOS 16-bit Microcontroller 1.0 Product Overview ................................................................................................................ 1 2.0 Nomenclature Overview ...................................................................................................... 2 3.0 Pinout .................................................................................................................................. 3 4.0 Signals ................................................................................................................................ 6 5.0 Address Map ..................................................................................................................... 13 6.0 Electrical Characteristics ................................................................................................... 14 6.1 DC Characteristics........................................................................................................ 14 6.2 AC Characteristics........................................................................................................ 18 6.2.1 Relationship of XTAL1 to CLKOUT ....................................................................... 18 6.2.2 Explanation of AC Symbols ................................................................................... 19 6.2.3 AC Characteristics — Multiplexed Bus Mode ........................................................ 20 6.2.3.1 System Bus Timings, Multiplexed Bus ...................................................... 22 6.2.3.2 READY Timing, Multiplexed Bus ............................................................... 23 6.2.4 AC Characteristics — Demultiplexed Bus Mode ................................................... 24 6.2.4.1 System Bus Timings, Demultiplexed Bus .................................................. 26 6.2.4.2 READY Timing, Demultiplexed Bus .......................................................... 27 6.2.4.3 80296SA Deferred Bus Timing Mode ........................................................ 28 6.2.5 HOLD#, HLDA# Timings ....................................................................................... 29 6.2.6 AC Characteristics — Serial Port, Synchronous Mode 0 ...................................... 30 6.2.7 External Clock Drive .............................................................................................. 31 7.0 Thermal Characteristics .................................................................................................... 33 8.0 80296SA Errata................................................................................................................. 33 9.0 Datasheet Revision History ............................................................................................... 33 FIGURES 1. 80296SA Block Diagram ......................................................................................................1 2. The 80296SA Family Nomenclature ....................................................................................2 3. 80296SA 100-pin QFP Package ..........................................................................................3 4. I CC versus Frequency in Reset ........................................................................................... 17 5. Effect of Clock Mode on CLKOUT...................................................................................... 18 6. System Bus Timings, Multiplexed Bus Mode ..................................................................... 22 7. Example READY Timings at 50 MHz, Multiplexed Bus, BUSCON x = 1 Wait State........... 23 8. System Bus Timings, Demultiplexed Bus Mode................................................................. 26 9. Example READY Timings at 50 MHz, Demultiplexed Bus, BUSCON x = 1 Wait State ...... 27 10. Deferred Bus Mode Timing Diagram.................................................................................. 28 11. HOLD#, HLDA# Timing Diagram ....................................................................................... 29 12. Serial Port Waveform — Synchronous Mode 0.................................................................. 30 13. External Clock Drive Waveforms........................................................................................ 31 14. AC Testing Input and Output Waveforms During 5.0 Volt Testing ..................................... 32 15. Float Waveforms During 5.0 Volt Testing........................................................................... 32 |
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