Datasheet > ICS952301

ICS952301

更新时间： 2024-11-21 04:44:23

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
12页	588K
描述
Frequency Timing Generator for Transmeta Systems

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中文翻译

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数据手册

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ICS952301 数据手册

ICS952301

Integrated

Circuit

Systems, Inc.

Advance Information

Frequency Timing Generator for Transmeta Systems

RecommendedApplication:

Transmeta

OutputFeatures:

Pin Configuration

•

1CPU up to 66.6MHz &

overclocking of 66MHz.

GNDREF 1

28 VDDREF

REF/ 1X or 2X Programmable

•

7 PCI (3.3V) @ 33.3MHz (all are free running

selectable) w/ 2 selectable 1X/2X.

X2 3

PD# 4

26 CPU_STOP#

25 VDDCPU/CORE

24 GNDCPU/CORE

23 CPUCLK0

22 PCI_STOP#

21 SCLK

PCICLK0 5

PCICLK1 6

GNDPCI 7

VDDPCI 8

•

1 REF (3.3V) at 14.318MHz.

1 48MHz (3.3V).

•

1 24_48MHz selectable output.

PCICLK2¹

VDD48

Features:

PCICLK3 10

19 GND48

PCICLK4¹

48MHz

•

Supports Spread Spectrum modulation for CPU and

PCI clocks, default -2.0% downspread.

GNDPCI

24-48MHz/Sel 48_24#

VDDPCI 13

PCICLK5 14

16 SDATA

15 PCICLK6

Efficient Power management scheme through stop

clocks and power down modes.

Uses external 14.318MHz crystal, no external load

cap required for CL=18pF crystal.

28-Pin 173milTSSOP

28-pin TSSOP package, 4.40mm (173mil).

Note: ^ Internal Pulldown Resistor

* Internal Pullup Resistor

SkewCharacteristics:

1 1X/2X Programmable

•

PCI – PCI < 500ps

•

CPU(early) – PCI = 1.5ns – 4ns.

Block Diagram

XTA L

REF

OSC

STOP

CPU

PLL

PCI(6:0)

PCI DIV

SCLOCK

SDATA

PD#

Control

Logic

PCI_STOP#

SEL48_24#

CPU_STOP#

48MHz

PLL

48MHz

STOP

Power Groups

VDD_Core, GND_Core = PLL core

VDDREF, GNDREF = REF, X1, X2

VDDPCI, GNDPCI = PCICLK (6:0)

VDD48, GND48 = 48MHz (1:0)

STOP

24/48MHz

24/48

0673—07/09/02

Pentium is a trademark on Intel Corporation.

ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.

ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.

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