[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**440 series:
***440FX (Natoma)       05/06/96...
***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99
Chips:
[82443MX] 	
CPUs:          Single P-II/III/Celeron
DRAM Types:    SDRAM
Mem Rows:      4  ???
DRAM Density:  16Mbit 64Mbit ???
Max Mem:       512MB
ECC/Parity:    No
AGP speed:     not supported
Bus Speed:     66 100
PCI Clock/Bus: 1/2 1/3


**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
**UM82C088     PC/XT Integration Chip                              <91
***Info:...
***Configurations:...
***Features:...
**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...
**UM82C493/491 ??????????????? [no datasheet]                        ?
***Notes:...
**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...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
*Unresearched:...
*VIA...
**SL9090/A Universal PC/AT Clock Chip                           <oct88
***Info:
The  SL9090  is a  Universal  Clock  Chip  capable of  generating  all
essential clock signals  that are used in a  typical P.C. design. This
device  can support  8086,  8088, 80286,  803865X,  80386DX and  80486
microprocessor  based designs.  The  outputs of  this  clock chip  are
programmable through  the keyboard and also by  jumper settings. Clock
options of 60 MHz, 50 MHz, 48  MHz, 40 MHz, 32 MHz and their multiples
are available, in order to give flexibility to the user.

Frequency  selection is  done by  the three  decode inputs  FS0-FS2 as
shown in Table  1. [see datasheet] FSEL is used  to control the system
I/O  bus clock.  During a  CPU cycle  the FSEL  remains high,  and the
frequency  selection  on the  outputs  is  determined  by the  FS0-FS2
pins. When  an I / O  cycle is detected,  the FSEL goes low  and fixed
frequencies of  16 MHz, 8 MHz and  4 MHz are available  on output pins
F12 (pin 8), F122 (pin 5) and F124 (pin 3). Designer have an option to
run  the system I/O  clock at  half the  CPU clock  as well.   This is
achieved  by connecting  the FSEL  pin to  the keyboard  controller in
order to hold this pin high  during an I/O cycle. This allows the FSEL
signal to be controlled through the keyboard by pressing CTL ALT +" or
"CTL ALT-".

The reference frequency  of 14.318 MHz is also  supplied to the output
through the FREF pin for the I/O slots. This frequency is divided by 2
internally and 7.159  MHz is supplied to the  output through the FREF2
pin for the keyboard controller. The  FREF12 pin has an output of 1.19
MHz and is used by the  timerl (8254) in the peripheral controller for
refresh. All outputs are capable of 8mA drive.

The SL9090 consists of  two independent Voltage controlled Oscillators
(VCOs)  integrated with  dividers, phase  sensitive  detectors, charge
pumps  and  buffer  amplifiers  to  provide the  desired  glitch  free
frequencies. An externally  generated signal of 14.318 MHz  is used as
the reference  frequency for the  SL9090. This reference  frequency is
fed into the phase sensitive detectors to differentiate the difference
in  phase  between the  reference  frequency  being  generated by  the
VCOs.  This  becomes  an input  to  the  charge  pumps which  in  turn
generates  a signal  to  sink or  source  the charge.  This signal  is
buffered by  the buffer  amplifiers between the  charge pumps  and the
VCOs. The output from the VCOs are divided to generate the appropriate
outputs.

The  SL9090 is  designed,  using advanced  Bipolar  technology and  is
available in  a 44 pin PLCC.  It requires only one  crystal (14.3 MHz)
and a few RC components to  generate all the essential clocks that are
required for a PC. design. As  there is only one crystal on the system
board,  the  Electro   Magnetic  Radiation  is  reduced  significantly
facilitating FCC  approval. This  makes the SL9090  an ideal  low cost
solution with capabilities for universal applications.

***Versions:...
***Features:...
**SL9095   Power  Management Unit                                    ?...
**SL9151   80286 Page Interleave Memory Controller (16-25MHz)        ?...
**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...
**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...
**VT8501       Apollo MVP4,Single-Chip 66-100MHz & AGP       <11/04/98...
**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...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

(c) Copyright mR_Slugs Warehouse - All rights Reserved