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W83193R-01

Features: · Supports Pentium™, Pentium™ Pro, Pentium™ II, AMD and Cyrix CPUs with I2C.· 4 CPU clocks.· 12 SDRAM clocks for 3 DIMs.· 7 PCI synchronous clocks.· One IOAPIC clock for multiprocessor support.· Optional single or mixed supply: (Vdd = Vddq3 = Vddq2 = 3.3V) or (Vdd = Vdd...

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SeekIC No. : 004545092 Detail

W83193R-01: Features: · Supports Pentium™, Pentium™ Pro, Pentium™ II, AMD and Cyrix CPUs with I2C.· 4 CPU clocks.· 12 SDRAM clocks for 3 DIMs.· 7 PCI synchronous clocks.· One IOAPIC clock for ...

W83193R-01 Data Sheet

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Part Number:
W83193R-01
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·  Supports Pentium™, Pentium™ Pro, Pentium™ II, AMD and Cyrix CPUs with I2C.
·  4 CPU clocks.
·  12 SDRAM clocks for 3 DIMs.
·  7 PCI synchronous clocks.
·  One IOAPIC clock for multiprocessor support.
·  Optional single or mixed supply: (Vdd = Vddq3 = Vddq2 = 3.3V) or (Vdd = Vddq3 = 3.3V, Vddq2 = 2.5V)
·  < 250ps skew among CPU and SDRAM clocks.
·  < 250ps skew among PCI clocks.
·  Smooth frequency switch with selections from 50 MHz to 83.3 MHz CPU.
·  I2C 2-Wire serial interface.
·  0.6% or 1.5% center type spread spectrum function to reduce EMI.
·  Programmable registers to enable/stop each output and select modes. (mode as Tri-state, or Normal )
·  MODE pin for power Management.
·  48 MHz for USB.
·  24 MHz for super I/O.
·  48-pin SSOP package.


Pinout

Connection Diagram


Specifications

Symbol

PARAMETER
RATING
Vdd , VIN
 Voltage on any pin with respect to GND
-0.5V to +7.0V
TSTG
 Storage Temperature
-65° C to +150° C
TB
 Ambient Temperature
-55° C to +125° C

TA

Operating Temperature

0°C to + 70°C




Description

The W83193R-01 is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as Intel PentiumPro , AMD or Cyrix. Eight different frequency of CPU and PCI clocks are externally selectable with smooth transitions.

The W83193R-02/-04 also provides I2C serial bus interface to program the registers to enable or disable each clock outputs and choose the 0.6% or 1.5% center type spread spectrum.

The W83193R-01 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply. High drive PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate into 30 pF loads. CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF loads as maintaining 50·· 5% duty cycle. The fixed frequency outputs as REF, 24MHz, and 48 MHz provide better than 0.5V /ns slew rate.




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