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參數資料
| 型號： | ST5x86 |
| 廠商： | 意法半導體 |
| 英文描述： | 100 and 120 MHz 3.45 Volt 5x86 CPU(微處理器) |
| 中文描述： | 100和120兆赫3.45伏特5x86的CPU（微處理器） |
| 文件頁數： | 1/39頁 |
| 文件大?。?/td> | 326K |
| 代理商： | ST5X86 |
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ST5x86
100 and 120 MHz 3.45 Volt 5x86 CPU
BLOCK DIAGRAM
October 1995
1/39
This is advanced information on a new product now in development or undergoing evaluation. Details are subject tochange without notice.
PRELIMINARY DATA
The ST5x86
microprocessor is a high perfor-
mance 586-class CPU compatible with all popular
x86 operating systems, including DOS, Windows,
Windows NT, Windows95, UNIX, Novell, OS/2 and
Solaris.
The 586-class performance is achieved by a
superpipelined architecture in the integer unit com-
bined with data forwarding, branch prediction,
16-KByte write-back cache, single-cycle instruc-
tion decode, and single-cycle execution.
The 5x86 processor provides many power saving
features that make it ideal for power sensitive sys-
tems. The CPU automatically powers down the
Floating Point Unit (FPU) and other internal cir-
cuits when they are not in use.
Fast entry and exit from System Management
Mode (SMM) allow frequent use of the SMM fea-
ture without noticeable performance degradation.
586-CLASS PERFORMANCE
- 100 and 120 MHz core speeds with 33, 40,
and 50 MHz bus options
- 16 KByte write-back cache
- Superpipelining and branch prediction
- Data forwarding
- Decoupled load/store unit
- On-chip FPU with 64-bit interface
SMALL FOOTPRINT
- 208-pin QFP, 168-pin CPGA, 168-pin PPGA
BUILT-IN POWER MANAGEMENT
- System management mode
- Suspend mode
- FPU, pipeline, and cache auto idle
- Stop clock capability
- Operates at 3.45V with 5V tolerant I/O
x86 INSTRUCTION SET COMPATIBLE
- Runs Windows, DOS, UNIX, Novell and others
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