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W83L197R-16

Features: · Supports Pentium™ II CPUs· 4 sets of CPU frequencies selection· 2 CPU clocks (one free running CPU clock)· 6 PCI synchronous clocks(one free running PCI clock)· Optional single or mixed supply: (Vdd3 = VddC= 3.3V±5%) or (VddC = 2.5V±5%)· Skew form CPU to PCI clock 1.5 to 4.0 ns, ...

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SeekIC No. : 004545219 Detail

W83L197R-16: Features: · Supports Pentium™ II CPUs· 4 sets of CPU frequencies selection· 2 CPU clocks (one free running CPU clock)· 6 PCI synchronous clocks(one free running PCI clock)· Optional single or ...

W83L197R-16 Data Sheet

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Part Number:
W83L197R-16
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: 2024/11/20

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Product Details

Description



Features:

·  Supports Pentium™ II CPUs
·  4 sets of CPU frequencies selection
·  2 CPU clocks (one free running CPU clock)
·  6 PCI synchronous clocks(one free running PCI clock)
·  Optional single or mixed supply: (Vdd3 = VddC= 3.3V±5%) or (VddC = 2.5V±5%)
·  Skew form CPU to PCI clock 1.5 to 4.0 ns, CPU leads.
·  CPU clock jitter less than 200ps
·  PCI_F,PCI1:6 clock skew less than 500ps
·  ··0.5% or ··0.75% center type spread spectrum function to reduce EMI
·  Programmable registers to enable/stop each output and select modes (mode as Tri-state or Normal )
·  48 MHz for USB
·  28-pin SOP package (209mil)


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 W83L197R-16 is a Clock Synthesizer which provides all clocks required for high-speed RISC or CISC microprocessor. Four different frequency of CPU, and PCI clocks are externally selectable with smooth transitions. The 0.5% or 0.75% center type spread spectrum can be selected to reduce EMI.

The W83L197R-16 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply. High drive PCI 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, 48 MHz provide better than 0.5V /ns slew rate.




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