JA80386EXTC25 Datasheet, PDF (3/56 Pages) Intel Corporation – Intel386™ EX Embedded Microprocessor

Intel386™ EX Embedded Microprocessor
Contents
1.0
Introduction .................................................................................................................. 7
2.0
Pin Assignment........................................................................................................... 8
3.0
Pin Description.......................................................................................................... 12
4.0
Functional Description........................................................................................... 19
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
Clock Generation and Power Management Unit ................................................. 19
Chip-select Unit ................................................................................................... 19
Interrupt Control Unit ........................................................................................... 19
Timer/Counter Unit .............................................................................................. 20
Watchdog Timer Unit........................................................................................... 20
Asynchronous Serial I/O Unit ..............................................................................20
Synchronous Serial I/O Unit ................................................................................ 21
Parallel I/O Unit ................................................................................................... 21
DMA and Bus Arbiter Unit ................................................................................... 21
Refresh Control Unit............................................................................................22
JTAG Test-logic Unit ........................................................................................... 22
5.0
Design Considerations ..........................................................................................23
5.1 Instruction Set ..................................................................................................... 23
5.2 Component and Revision Identifiers ................................................................... 24
5.3 Package Thermal Specifications .........................................................................24
6.0
Electrical Specifications........................................................................................ 27
6.1 Maximum Ratings................................................................................................ 27
6.2 DC Specifications ................................................................................................ 28
6.3 AC Specifications ................................................................................................ 30
7.0
Bus Cycle Waveforms ............................................................................................47
Figures
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Intel386™ EX Embedded Processor Block Diagram ............................................ 7
Intel386™ EX Embedded Processor 132-Pin PQFP Pin Assignment .................. 8
Intel386™ EX Embedded Processor 144-Pin TQFP Pin Assignment................. 10
Maximum Case Temperature vs. Frequency for Typical Power Values
(132-lead PQFP, V_cc = 5.5 V) ............................................................................. 25
Maximum Case Temperature vs. Frequency for Typical Power Values
(144-lead TQFP, V_cc = 5.5 V nominal) ................................................................ 25
Maximum Case Temperature vs. Frequency for Typical Power Values
(132-lead PQFP, V_cc = 3.6 V) ............................................................................. 26
Maximum Case Temperature vs. Frequency for Typical Power Values
(144-lead TQFP, V_cc = 3.6 V)..............................................................................26
Drive Levels and Measurement Points for AC Specifications (EXTC) ................ 30
Drive Levels and Measurement Points for AC Specifications (EXTB) ................ 31
AC Test Loads..................................................................................................... 42
Datasheet
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