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SM8702AM

Features: · Intel® Pentium® II, Pentium® III, and AMD x86- compatibles supported· 2.5/3.3V CPU clock outputs and IOAPIC clock output·14× SDRAM clock outputs (3 DIMMs)·2× CPU clock outputs (60), 66, 75, 83, 95, 100, 103, 112, (124), 133MHz CPU/SDRAM clock frequencies. Values in parenthe...

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SeekIC No. : 004494084 Detail

SM8702AM: Features: · Intel® Pentium® II, Pentium® III, and AMD x86- compatibles supported· 2.5/3.3V CPU clock outputs and IOAPIC clock output·14× SDRAM clock outputs (3 DIMMs)·2× CPU clock output...

SM8702AM Data Sheet

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Part Number:
SM8702AM
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:

· Intel ® Pentium ® II, Pentium ® III, and AMD x86- compatibles supported
· 2.5/3.3V CPU clock outputs and IOAPIC clock output
·14 × SDRAM clock outputs (3 DIMMs)
·2× CPU clock outputs (60), 66, 75, 83, 95, 100, 103, 112, (124), 133MHz CPU/SDRAM clock frequencies. Values in parentheses are available as mask options.
· 6 × PCI bus clock outputs (one free-running output)33MHz or 1/2, 1/3, 1/4 of the CPU clock frequency
· 2  × reference clock outputs and 1 × IOAPIC clock output 14.318MHz REF/IOAPIC clock frequency
· 1 × 48MHz USB interface clock output
· 1 × 24MHz clock output for Super I/O chip
· I2C serial data bus for frequency/mode output control
· CPU-stop and PCI-stop functions
·Spread Spectrum Clock Generator (SSCG) outputs Center spread/Down spread, ± 0.5% or ± 1.5%
· 3.3V (VDD) and 2.5/3.3V (VDDL) supply voltages
· 48-pin SSOP package (pin compatible with ICS9148-26)


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Rating
Unit
Supply voltage range
VDD
(VDD1, VDD2, VDD3, VDD4)
-0.3 to 60
V
VDDL
(VDDL1, VDDL2)
-0.3 to 60
V
VSS
0
V
Input voltage range
VIN
-0.3 to VDD+0.3
V
Output voltage range

VOUT
-0.3 to VDD + 0.3
V
Power dissipation
PD
-55 to 125
Storage temperature range
Tstg
0.8
W



Description

The SM8702AM is a clock generator IC that can generate clock signals up to and exceeding 100MHz for personal computer (PC) motherboards. It uses a single 14.318MHz crystal oscillator element and 2 built-in PLLs to simultaneously and independently generate 2 CPU clocks, 6 PCI bus clocks, 2 reference clocks with the same frequency as the crystal element, 48MHz USB interface clock, and 24MHz Super I/O chip clock outputs. It also has 14 outputs that can function as SDRAM clocks by buffering an external input SDRAM clock




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