W83194R-17

Features: · Supports Pentium™, Pentium™ Pro, Pentium™II, AMD and Cyrix CPUs with I2C.· 4 CPU clocks· 12 SDRAM clocks for 3 DIMMs· Two AGP clocks· 6 PCI synchronous clocks.· Optional single or mixed supply:(Vdd = Vddq3 = Vddq2 = Vddq2b = 3.3V) or (Vdd =Vddq2 = Vddq3 = 3.3V, Vddq2b...

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W83194R-17 Picture
SeekIC No. : 004545127 Detail

W83194R-17: Features: · Supports Pentium™, Pentium™ Pro, Pentium™II, AMD and Cyrix CPUs with I2C.· 4 CPU clocks· 12 SDRAM clocks for 3 DIMMs· Two AGP clocks· 6 PCI synchronous clocks.· Optiona...

floor Price/Ceiling Price

Part Number:
W83194R-17
Supply Ability:
5000

Price Break

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

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Upload time: 2024/3/27

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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 DIMMs
·  Two AGP clocks
·  6 PCI synchronous clocks.
·  Optional single or mixed supply:
(Vdd = Vddq3 = Vddq2 = Vddq2b = 3.3V) or (Vdd =Vddq2 = Vddq3 = 3.3V, Vddq2b = 2.5V)
·  Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns, AGP to CPU sync. skew 0 ns (250 ps)
·  Smooth frequency switch with selections from 60 MHz to 133 MHz CPU
·  I2C 2-Wire serial interface and I2C read back
·  ··0.5% 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 W83194R-17/-17A is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor such as Intel PentiumII, PentiumPro , AMD or Cyrix. Eight different frequency of CPU, AGP and PCI clocks are externally selectable with smooth transitions. The W83194R-17/-17A provides AGP clocks especially for clone chipset. The highest CPU frequency provided by the W83194R-17 is up to 100MHz, but the one of W83194R-17A is up to 133MHz.

The W83193R-17/-17A provides I2C serial bus interface to program the registers to enable or disable each clock outputs and choose the 0.5% or 1.5% center type spread spectrum to reduce EMI.

The W83194R-17/-17A 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¡Ó 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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