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**950 LPC I/O <07/16/99
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*UMC...
**UM82C*** (IBM/INTEL Direct replacement) c87
Note: Dates vary for when these chips were first available. Two
databooks have been used one from '86 the other from '91. Not all the
chips are listed in the '86 databook, the date of '87 is an
assumption.
PC/XT:
IBM: UMC: Desc:
Intel 8284 UM82C84A 25MHz CMOS Clock Generator and Driver
Intel 8288 UM82C88 Bus Controller
Intel 8259 UM8259A Programmable Interrupt Controller also UM82C59A-2 (CMOS version)
Intel 8237 UM8237A 3-5MHz Programmable DMA Controller (DMAC)
Intel 8253 UM8253*2 2.6-5MHz Programmable Interval Timer
Intel 8255 UM82C55A* Programmable Peripheral Interface
Note: * indicates: possible compatibility, datasheet does not state
explicitly. YMMV.
Note: *2 indicates: The UM8253 can be replaced with the
UM82C54/-2. The datasheet says it is a superset of the 8253, and
works up to 10MHz. Also it's compatible with the 8254. AT: IBM:
UMC: Desc: Intel 82284 UM82C284* 10-12.5MHz Clock Generator and
Ready Interface Intel 82288 UM82C288* 10-12.5MHz Bus Controller
Intel 8254 UM82C54/-2 8-10MHz CMOS Programmable Interval Timer
Intel 8259 UM8259A Programmable Interrupt Controller also
UM82C59A-2 (CMOS version) Intel 8237 UM8237A 3-5MHz Programmable
DMA Controller (DMAC) 74LS612 UM74HCT612* Memory Mapper MC146818
RTC UM82C6818* Real-Time Clock (RTC) Intel 8047 ?? Keyboard
Controller
Note: * indicates: possible compatibility, datasheet does not state
explicitly. YMMV.
**UM82C088 PC/XT Integration Chip <91...
**UM82C230 286AT MORTAR Chip Set <91...
**UM82C210 386SX/286 AT Chip Set <91...
**UM82C3xx Twinstar & UM82C336F/N & UM82C39x [no datasheet] ?...
**UM82C380 386 HEAT PC/AT Chip Set <91...
**UM82C480 386/486 PC Chip Set c91
***Info:
The UMC82C480 is a highly integrated, IBM PC/AT compatible chip set
for high performance 80386/80486 based personal computer systems.
Built with exquisite [yes it really says that] cache controller in
advanced 1.0um CMOS technology, UM82C481 (Integrated Memory
Controller, IMC), UM82C482 (Integrated System Controller, ISC), with
UM82C206 (Integrated Peripheral Controller, IPC), and limited counts
of commercial parts constitute a low cost, highly reliable, full
advanced feature personal computer system.
The UM82C482, Integrated System Controller (ISC), is part of UMC's
high performance 80386/80486 PC/AT chip set. It contains AT bus
control logic, data bus conversion logic, CPU reset logic, clock
generation for CPU, keyboard and timer, DMA/refresh logic and
peripheral interface logic. Incorporated with UM82C481, integrated
Memory Controller (IMC), and UM82C206, Integrated Peripheral
Controller (IPC), ISC provides system control functions for overall
PC/AT computer system.
The UM82C481, Integrated Memory Controller (IMC), is part of UMC's
high performance 80386/80486 PC/AT chip set. It contains sophisticated
direct-mapped cache controller with write back operation, and fast
page mode DRAM controller. Incorporated with UM82C482, Integrated
System Controller (ISC), and UM82C206, Integrated Peripheral
Controller (IPC), IMC provides main memory management function for the
PC/AT computer system.
***Configurations:
UM82C482 Integrated System Controller (ISC)
UM82C481 Integrated Memory Controller (IMC)
and:
UM82C206 Integrated Peripheral Controller, IPC
Known Versions:
UM82C481A
UM82C481BF
UM82C482A
UM82C482AF
No idea how these differ to the original.
***Features:...
**UM82C493/491 ??????????????? [no datasheet] ?...
**UM8498/8496 486 VL Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886 HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890 Pentium chipset [no datasheet] ?...
**
**Support Chips:
**UM82152 Cache Controller (AUStek A38152 clone) <91...
**UM82C852 Multi I/O For XT <91...
**UM82C206 Integrated Peripheral Controller <91
***Info:...
***Versions:...
***Features:...
**UM82c45x Serial/Parallel chips ?...
**Other chips:
***Video:...
***Disk:...
***Peripheral:...
***Other:...
*Unresearched:...
***Biostar
Biostar Systems BIOTEQ 82C3480, ISA 486/386 Cache System Chipset
Biostar Systems BIOTEQ 82C3491, 82C3493, ISA 486/386 Single Chip c93
Biostar Systems BIOTEQ 82C3480 ISA 486/386 Cache System Chipset
***Citygate...
***Cyrix...
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*VIA...
**SL9XXX FlexSet family General information...
**SL9011 System Controller (80286/80386SX/DX, 16/20/25MHz) <Jan90
***Info:...
***Versions:...
***Features:...
**SL9020 Data Controller <Jan90...
**SL9025 Address Controller <Jan90...
**SL9030 Integrated Peripheral Controller <Jan90...
**SL9090/A Universal PC/AT Clock Chip <oct88...
**SL9095 Power Management Unit ?...
**SL9151 80286 Page Interleave Memory Controller (16-25MHz) ?
***Info:...
***Versions:...
***Features:...
**SL9250 80386SX Page Mode Memory Controller (16/20MHz 8MB) ?...
**SL9251 80386SX Page Interleave Memory Controller <04/13/90...
**SL9252 80386SX System and Memory Controller <06/12/90...
**SL9350 80386DX Page Mode Memory Controller (16-25MHz 16MB) ?...
**SL9351 80386DX Page Interleave Memory Controller (33MHz) ?...
**SL9352 80386DX System and Memory Controller <06/12/90...
**SLXXXX Other chips...
**
**VT82C470 "Jupiter", Chip Set (w/o cache) 386 [no datasheet] ?
**VT82C475 "Jupiter", Chip Set (w/cache) 386 [no datasheet] ?
**VT82C486/2/3 "GMC chipset" [no datasheet, some info] ?...
**VT82C495/480 "Venus" Chip Set [no datasheet] ?
**VT82C495/491 ? EISA Chip Set [no datasheet, some info] <93...
**VT82C496G Pluto, Green PC 80486 PCI/VL/ISA System <05/30/94...
**VT82C530MV 3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M Apollo Master, Green Pentium/P54C <06/22/95
***Info:...
***Configurations:...
***Features:...
**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96...
**VT82C580VPX Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590 Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT Apollo VP3, Single-Chip for Pentium with AGP <10/03/97...
**VT82C598MVP Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97
***Notes:...
***Info:...
***Configurations:...
***Features:...
**VT8501 Apollo MVP4,Single-Chip 66-100MHz & AGP <11/04/98
***Notes:...
***info:...
***Configurations:...
***Features:...
**VT82C680 Apollo P6, Pentium-Pro Chip Set <08/30/96...
**Support chips:
**VT82C505 Pentium/486 VL to PCI Bridge <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller <10/13/96...
**VT82C596/A Mobile PCI Integrated Peripheral Controller <11/05/97...
**VT82C686A/B PCI Super-I/O Integrated Peripheral Ctrl. <02/10/98...
**Later P-Pro/II/III/Celeron...
**Later AMD...
**Other...
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