Datasheet > CYW137OXC

CYW137OXC

更新时间： 2024-11-28 03:09:31

品牌	Logo	应用领域
SPECTRALINEAR		/
页数	文件大小	规格书
8页	131K
描述
FTG for Mobile 440BX & Transmeta’s Crusoe CPU

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中文翻译

获取价格

数据手册

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CYW137OXC 数据手册

W137

FTG for Mobile 440BX & Transmeta’s Crusoe CPU

CPU0:1 Cycle to Cycle Jitter: ..................................... 200 ps

PCI_F, PCI1:± Output to Output Skew:....................... ±00 ps

Features

• Maximized EMI suppression using Cypress’s Spread

Spectrum Technology

PCI_F, PCI1:± Cycle to Cycle Jitter: .......................... 2±0 ps

CPU to PCI Output Skew:................1.±–4.0 ns (CPU Leads)

Output Duty Cycle:.....................................................4±/±±%

PCI_F, PCI Edge Rate:..............................................>1 V/ns

• Two copies of CPU output

• Six copies of PCI output (Synchronous w/CPU output)

• One 48-MHz output for USB support

• One selectable 24 /48 MHz output

CPU_STOP#, OE, SPREAD#, SEL48#, PCI_STOP#,

PWR_DWN# all have a 2±0-kW pull-up resistor.

• Two Buffered copies of 14.318 MHz input reference

signal

Table 1. Pin Selectable Frequency

• Supports 100 MHz or 66 MHz CPU operation

• Power management control input pins

SEL100/66#

CPU

Hi-Z

PCI

Hi-Z

33.3

Spread%

Don’t Care

See Table 2

0/1

• Available in 28-pin SSOP (209 mils) and 28-pin TSSO

(173 mils)

66.6 MHz

100 MHz

• SS function can be disabled

• See W40S11-02 for 2 SDRAM DIMM support

Table 2. Spread Spectrum Feature

Key Specifications

SPREAD#

Spread Profile

Supply Voltages:........................................V_DDQ3= 3.3V±±%

–0.±% (down spread)

0% (spread disabled)

V_DDQ2= 2.±V±±%

CPU0:1 Output to Output Skew: .................................17± ps

Block Diagram

Pin Configuration

<adjust the size of the anchored frame as

per requirement>

Rev 1.0, November 24, 2006

Page 1 of 8

2200 Laurelwood Road, Santa Clara, CA 95054

Tel:(408) 855-0555 Fax:(408) 855-0550

www.SpectraLinear.com

12 3 4 5 6 7 8

中文翻译

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