音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

ICS9148YF-46 Datasheet

  • ICS9148YF-46

  • Pentium/ProTM System Clock Chip

  • 9頁

  • ICS

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

Integrated
Circuit
Systems, Inc.
ICS9148-46
Pentium/Pro
TM
System Clock Chip
General Description
The
ICS9148-46
is part of a reduced pin count two-chip clock
solution for designs using an Intel BX style chipset.
Companion SDRAM buffers are ICS9179-03, and -12.
There are two PLLs, with the first PLL capable of spread
spectrum operation. Spread spectrum typically reduces system
EMI by 8-10dB. The second PLL provides support for USB
(48MHz) and 24MHz requirements. CPU frequencies up to
100MHz are supported.
The I
2
C interface allows stop clock programming, frequency
selection, and spread spectrum operation to be programmed.
Clock outputs include two CPU (2.5V or 3.3V), five PCI (3.3V),
two REF (3.3V), one 48MHz, and one selectable 48_24MHz.
Features
聲
聲
聲
聲
聲
聲
聲
聲
聲
聲
Generates system clocks for CPU, PCI, 14.314 MHz,
48 and 24MHz.
Supports single or dual processor systems
Skew from CPU (earlier) to PCI clock 1 to 4ns
Separate 2.5V and 3.3V supply pins
2.5V outputs: CPU
3.3V outputs: PCI, REF
No power supply sequence requirements
28 pin SSOP
Spread Sectrum operation optional for PLL1
CPU frequencies to 100MHz are supported.
Block Diagram
Pin Configuration
28 pin SSOP
Power Groups
VDD = Supply for PLL core
VDD1 = REF(0:1), X1, X2
VDD2 = PCICLK_F, PCICLK (0:3)
VDD3 = 48MHz, 24/48MHz
VDDL = CPUCLK (0:1)
Ground Groups
GND = Ground Source Core, CPUCLK (0:1)
GND1 = REF(0:1), X1, X2
GND2 = PCICLK_F, PCICLK (0:5)
GND3=48MHz, 24/48MHz
Pentium is a trademark on Intel Corporation.
9148-46 Rev E 4/20/99
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.

ICS9148YF-46相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！