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**TACT83000 AT 'Tiger' Chip Set (386) c89
***Info:...
***Configurations:...
***Features:
o High-Speed 1-um CMOS Technology Supports System Speeds up to
33 MHz
o Fully AT-Compatible 386 Three-Chip SX, Four-Chip DX Solutions
o Only Four Additional Logic Chips Needed
o Major Features Programmable Through Software
o TACT83442 Memory Control Unit (MCU)
- Cascadable up to Eight Devices
- Address Range of up to 32M Byte Per Device, 256M Byte Fully
Cascaded
- Supports 256K-, 1M-, and 4M-Bit DRAMs in Normal, Page, Word-
interleave, and Page Block-interleave Modes
- Programmable DRAM Timing Parameters
- Supports up to Two Memory Banks for 32-Bit Systems and Four
Banks for 16-Bit Systems
- Can Directly Drive up to 36 DRAM Devices
- Shadow RAM Available Between 0C 0000h and 0F FFFFh
- Contains Global Page Mapping RAM Allowing Remap of
- 64K-Byte Memory Blocks Above 1M Byte
- 16K-Byte Memory Blocks Below 1M Byte
o TACT83443 AT Bus Interface Unit (ATU)
- Internal Clock Switching Between Two Independent Frequencies
Controlled by Software
- Asynchronous AT Bus Interface With Write Buffer Option
- Full AT Direct-Drive Capability
- Extended Direct Memory Access Mode for 32-Bit Operation
- Fast CPU Reset and A20 GATE Modification
- Numeric Processor Interface for 387SX, 387DX, and Weitek 3167
- Integrates All Essential AT Peripherals
- Real Time Clock With 128-Byte CMOS RAM
o TACT83441 Data Path Unit (DPU)
- 8- and 16-Bit Data Bus Sizing
- Data Path Cascadable to 32 Bits
- Write Buffer Capability for AT Bus Access
- Supports Posted Write Operations From Cache Controller
- Parity Generation and Checking Logic
**TACT84500 AT Chip Set (486, EISA) [no datasheet, some info] c91...
**Other:...
*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:...
***Configurations:...
***Features:...
**UM82C493/491 ??????????????? [no datasheet] ?...
**UM8498/8496 486 VL Chipset "Super Energy Star Green"[no dsheet]c94
***Notes:...
***Configurations:...
**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:...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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