W83193R02

Features: · Supports PentiumÔ, PentiumÔ Pro, PentiumÔ 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 = Vddq2b = 3.3V) or (...

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SeekIC No. : 004545093 Detail

W83193R02: Features: · Supports PentiumÔ, PentiumÔ Pro, PentiumÔ II, AMD and Cyrix CPUs with I2C.· 4 CPU clocks· 12 SDRAM clocks for 3 DIMs.· 7 PCI synchronous clocks.· One IOAPIC clock for m...

floor Price/Ceiling Price

Part Number:
W83193R02
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: 2024/4/23

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Product Details

Description



Features:

·  Supports PentiumÔ, PentiumÔ Pro, PentiumÔ 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 = Vddq2b = 3.3V)
   or (Vdd = Vddq3 = 3.3V, Vddq2 = Vdq2b = 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. (W83193R-04)
·  I2C 2-Wire serial interface and I2C read back.
·  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

- 0.5 V to + 7.0 V

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-02/-04 is a Main board Clock Synthesizer which provides all clocks required for highspeed RISC or CISC microprocessor such as Intel PentiumPro, PentiumII, 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 0.5% or 1.5% center type spread spectrum.

The W83193R-02/-04 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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