參數(shù)資料
型號: ICS9169C-272
英文描述: Frequency Generator for Pentium⑩ Based Systems
中文描述: 頻率的奔騰⑩發(fā)電機系統(tǒng)
文件頁數(shù): 2/8頁
文件大?。?/td> 336K
代理商: ICS9169C-272
2
ICS169C-232
Pin Descriptions
PIN NUMBER
PIN NAME
TYPE
DESCRIPTION
1
VDD1
PWR
Power for control logic and crystal oscillator circuit and
14.318 MHz output
XTAL or external reference frequency input. This input includes XTAL
load capacitance and feedback bias for a 12-16MHz crystal, nominally
14.31818MHz. External crystal load of 30pF to GND recommended for
VDD power on faster than 2.0ms.
XTAL output which includes XTAL load capacitance. External crystal
load of 10pF to GND recommended for VDD power on faster than 2.0ms.
Ground for control logic.
Processor clock outputs which are a multiple of the input reference clock
as shown in the preceding table.
Processor clock outputs which are a multiple of the input reference clock
as shown in the preceding table.
Frequency multiplier select pins. See shared pin programming description
later in this data sheet for further explanation. 350K* internal pull up.
Power for CPU (1:6) clock buffers only. This VDD supply can be reduced
to 2.5V for CPU (1:6) outputs.
Power for CPU (7:8) clock buffers and internal PLL and Core logic. Must
be nominal 3.3V (3.0 to 3.7V)
BUS clock outputs which are a multiple of the input reference clock as
shown in the preceding table.
Power for BUS clock buffers BUS (1;6)
Power for fixed clock buffer (48 MHz, 24 MHz)
Fixed 24 MHz clock (assuming a 14.31818 MHz REF frequency).
Fixed 48 MHz clock (assuming a 14.31818 MHz REF frequency).
2
X1
IN
3
X2
OUT
4,11,16,22
GND
PWR
6,7,9,10,15
CPU(2,3,4,5,8)
OUT
5,12,13
CPU1, CPU6,
CPU7
OUT
5,12,13
FS (0:2)
IN
8
VDD2
PWR
14
VDD3
PWR
17,18,20,21,23, 24
BUS(1:6)
OUT
19
25
26
27
VDD4
VDD5
24 MHz
48 MHz
PWR
PWR
OUT
OUT
28
REF
OUT
Fixed 14.31818 MHz clock (assuming a 14.31818 MHz REF frequency).
BSEL
IN
Selection for synchronous or asynchronous bus clock operation. 350K*
internal pull up.
* The internal pull up will vary from 350K to 500K based on temperature
相關PDF資料
PDF描述
ICS9169C-273 Frequency Generator for Pentium⑩ Based Systems
ICS9169C-36 Low Cost 20-Pin Frequency Generator
ICS9169C-40 System Clock Chip
ICS9169C-41 Frequency Generator for PentiumPro⑩ Based Systems
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相關代理商/技術參數(shù)
參數(shù)描述
ICS9169C-273 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator for Pentium⑩ Based Systems
ICS9169C-36 制造商:ICS 制造商全稱:ICS 功能描述:Low Cost 20-Pin Frequency Generator
ICS9169C-40 制造商:ICS 制造商全稱:ICS 功能描述:System Clock Chip
ICS9169C-41 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator for PentiumPro⑩ Based Systems
ICS9169CF-23 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator