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參數(shù)資料
| 型號： | 272420-007 |
| 廠商： | Intel Corp. |
| 英文描述： | Intel386 EX Embedded Microprocessor |
| 中文描述： | 英特爾386防爆嵌入式微處理器 |
| 文件頁數(shù)： | 1/56頁 |
| 文件大小： | 766K |
| 代理商： | 272420-007 |
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Intel386 EX Embedded
Microprocessor
Datasheet
Product Features
This datasheet applies to devices marked EXTB and EXTC. If you require information about
devices marked EXSA or EXTA, refer to a previous revision of this datasheet, order number
272420-004.
I
Static Intel386 CPU Core
—Low Power Consumption
—Operating Power Supply
EXTB: 2.7 V to 3.6 V
EXTC: 4.5 V to 5.5 V
—Operating Frequency
20 MHz EXTB at 2.7 V to 3.6 V
25 MHz EXTB at 3.0 V to 3.6 V;
25/33 MHz EXTC at 4.5 V to 5.5 V
I
Transparent Power-management System
Architecture
—Intel System Management Mode
Architecture Extension for Truly
Compatible Systems
—Power Management Transparent to
Operating Systems and Application
Programs
—Programmable Power-management
Modes
I
Powerdown Mode
—Clock Stopping at Any Time
—Only 10–20 μA Typical CPU Sink
Current
I
Full 32-bit Internal Architecture
—8-, 16-, 32-bit Data Types
—8 General Purpose 32-bit Registers
I
Runs Intel386 Architecture Software in a
Cost-effective 16-bit Hardware
Environment
—Runs Same Applications and Operating
Systems as the Intel386 SX and Intel386
DX Processors
—Object Code Compatible with 8086,
80186, 80286, and Intel386 Processors
I
High-performance 16-bit Data Bus
—Two-clock Bus Cycles
—Address Pipelining Allows Use of
Slower, Inexpensive Memories
I
Extended Temperature Range
I
Integrated Memory Management Unit
—Virtual Memory Support
—Optional On-chip Paging
—4 Levels of Hardware-enforced
Protection
—MMU Fully Compatible with MMUs of
the 80286 and Intel386 DX Processors
I
Virtual 8086 Mode Allows Execution of
8086 Software in a Protected and Paged
System
I
Large Uniform Address Space
—64 Megabyte Physical
—64 Terabyte Virtual
—4 Gigabyte Maximum Segment Size
I
On-chip Debugging Support Including
Breakpoint Registers
I
Complete System Development Support
I
High Speed CHMOS Technology
I
Two Package Types
—132-pin Plastic Quad Flatpack
—144-pin Thin Quad Flatpack
I
Integrated Peripheral Functions
—Clock and Power Management Unit
—Chip-select Unit
—Interrupt Control Unit
—Timer/Counter Unit
—Watchdog Timer Unit
—Asynchronous Serial I/O Unit
—Synchronous Serial I/O Unit
—Parallel I/O Unit
—DMA and Bus Arbiter Unit
—Refresh Control Unit
—JTAG-compliant Test-logic Unit
Order Number: 272420-007
October 1998
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