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**F8680/A PC/CHIP Single-Chip PC c93
***Notes:...
***Info:...
***Configurations:...
***Features
o 3.3V/5V operation, fully static design, and intelligent sleep mode
reduce power consumption approximately 60 percent and allow direct
battery drive.
o PC-compatible design supports PC software and 8-bit ISA cards.
o SuperState R mode provides a separate operating environment and
enables complete I/O and interrupt monitoring without BIOS
modification.
o Virtual I/O feature allows device emulation as well as I/O
monitoring and control.
o Virtual Interrupts feature allows interrupts to be monitored and/
or redirected before any operating system, application program,
or TSR sees them.
o 26-bit address bus enables 64MB memory map and allows direct
support of PCMCIA memory card.
o Four-stage pipeline and 14MHz operation give performance
comparable to a 286 or 386SX system.
o Flexible memory management supports PCMCIA cards and up to three
banks of PSRAM, SRAM, and/or DRAM.
o Bank switching and high memory access overcome the 1MB addressing
limitation of the 8086 processor, and enable PCMCIA and EMS
support.
o Single CGA controller manages a CRT or LCD panel display and
requires only a single 32Kx8 SRAM to minimize power consumption
and board space.
o Visual Map gray scaling provides excellent visual contrast on any
LCD panel.
o 16C450-compatible UART supports COM1 or COM2 or can be disabled.
o Over 100 configuration registers allow flexibility, control, and
differentiation in system design.
F8680A adds:
o Full PCMCIA 2.0 memory and I/O card support ensure compatibility
with current and future expansions.
**
**Support Chips:
**64200 (Wingine) High Performance 'Windows Engine' c:Oct91...
**82C206 Integrated Peripheral Controller c86...
**82C601/A Single Chip Peripheral Controller <08/30/90...
**82C607 Multifunction Controller <Jun88...
**82C710 Universal Peripheral Controller c:Aug90...
**82C711 Universal Peripheral Controller II c:Jan91...
**82C712 Universal Peripheral Controller II c:Jan91...
**82C721 Universal Peripheral Controller III c:May93...
**82C735 I/O Peripheral Controller With Printgine c:Jul93...
**82C835 Single CHIP 386sx AT Cache Controller c:Apr91...
**F87000 Multi-Mode Peripheral Chip 11/23/93...
**Other:...
**Disk:...
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*Contaq . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
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*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:
Date source: TimelineDateSort7_05.pdf
Information taken from:
1995_Intel_Pentium_Processors_and_Related_Components.pdf*
8249x Cache controllers.pdf**
>* Datasheet dated Oct'93
>** Datasheet undated, whole document dated '95
The info and features section have been solely sourced from the first
source. The second source provides far more detail. Additional
information in the configurations section has been sourced from the
second.
This chip was used on the Pentium 66MHz CPU complexes of Intel's
Xpress platform. Specifically the BXCPUPENT66 (Single 66MHz, eight
82491s) and BXCPU2XPENT (Dual 66 MHz, eight 82491s). Also found on P5
60/66MHz CPU complexes of IBM 9595/PC Server 300/500 systems.
***Info:...
***Configurations:...
***Features:...
**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**82498/493 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX (?) 06/29/98:...
**????? (Profusion) c:99...
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