欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號(hào): ICS9148-03
英文描述: LED Mount; Bulb Size:T-1; LED Color:Yellow; Luminous Intensity:20mcd; Viewing Angle:45 ; Forward Current:30mA; Forward Voltage:2.1V; Operating Temperature Range:-40 C to +85 C; Leaded Process Compatible:Yes RoHS Compliant: Yes
中文描述: 頻率發(fā)生器
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 691K
代理商: ICS9148-03
Integrated
Circuit
Systems, Inc.
General Description
Features
Generates system clocks for CPU, IOAPIC, SDRAM,
PCI, plus 14.314 MHz REF(0:1), USB, Plus Super I/O
Supports single or dual processor systems
I
2
C serial configuration interface provides output clock
disabling and other functions
MODE input pin selects optional power management
input control pins
Two fixed outputs separately selectable as
24 or 48MHz
Separate 2.5V and 3.3V supply pins
2.5V or 3.3V outputs: CPU, IOAPIC
3.3V outputs: SDRAM, PCI, REF, 48/24 MHz
CPU 3.3_2.5# logic pin to adjust output strength
No power supply sequence requirements
Uses external 14.318MHz crystal
48 pin 300 mil SSOP
Output enable register
for serial port control:
ICS9148-02
Block Diagram
Pentium/Pro
TM
System Clock Chip
9148-02 Rev C 1/26/99
Pentium is a trademark on Intel Corporation.
1 = enable
0 = disable
The
ICS9148-02
is a Clock Synthesizer chip for Pentium and
PentiumPro CPU based Desktop/Notebook systems that will
provide all necessary clock timing.
Features include four CPU, seven PCI and eight SDRAM
clocks. Two reference outputs are available equal to the
crystal frequency. Additionally, the device meets the Pentium
power-up stabilization, which requires that CPU and PCI
clocks be stable within 2ms after power-up.
PWR_DWN# pin allows low power mode by stopping crystal
OSC and PLL stages. For optional power management,
CPU_STOP# can stop CPU (0:3) clocks and PCI_STOP#
will stop PCICLK (0:5) clocks. CPU and IOAPIC output
buffer strength controlled by CPU 3.3_2.5# pin to match
VDDL voltage.
High drive CPUCLK outputs typically provide greater than 1
V/ns slew rate into 20pF loads. PCICLK outputs typically
provide better than 1V/ns slew rate into 30pF loads while
maintaining 50±5% duty cycle. The REF clock outputs typically
provide better than 0.5V/ns slew rates.
The
ICS9148-02
accepts a 14.318MHz reference crystal or
clock as its input and runs on a 3.3V core supply.
Functionality
VDD (1:4) 3.3V±10%, VDDL1, 2 2.5±5% or 3.3±10% 0-70
°
C
Crystal (X1, X2) = 14.31818 MHz
L
E
S
M
A
R
D
S
)
0
6
6
6
,
K
M
L
(
C
U
P
C
H
K
L
)
0
3
3
C
H
3
I
C
M
(
P
0
1
Pin Configuration
48-Pin SSOP
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.
相關(guān)PDF資料
PDF描述
ICS9148-10 LED Mount; Bulb Size:T-1; LED Color:Yellow; Luminous Intensity:20mcd; Viewing Angle:45 ; Forward Current:30mA; Forward Voltage:2.1V; Operating Temperature Range:-40 C to +85 C; Leaded Process Compatible:Yes RoHS Compliant: Yes
ICS9148-11 RED/GREEN BI-LEVEL, R/A, HOUSED, LED
ICS9148-111 UV LED, 3MM, 30DEG; LED / lamp size:3mm; Current, forward If:30mA; Power, output:12mW; Luminous intensity, typ:12mcd; Angle, viewing:30(degree); Wavelength, typ:400nm; Temperature, operating range:-25(degree C) to +85(degree C); Case RoHS Compliant: Yes
ICS9148-12 UV LED, 5MM, 30DEG; LED / lamp size:5mm; Current, forward If:30mA; Power, output:12mW; Luminous intensity, typ:12mcd; Angle, viewing:30(degree); Wavelength, typ:400nm; Temperature, operating range:-25(degree C) to +85(degree C); Case RoHS Compliant: Yes
ICS9148-13 Frequency Generator & Integrated Buffers for PENTIUMTM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS9148-08 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Frequency Generator & Integrated Buffers for PENTIUM/ProTM
ICS9148-08-PPP 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUM/Pro
ICS9148-10 制造商:ICS 制造商全稱:ICS 功能描述:Pentium/ProTM System Clock Chip
ICS9148-11 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUMTM
ICS9148-111 制造商:ICS 制造商全稱:ICS 功能描述:Frequency Generator & Integrated Buffers for PENTIUM/ProTM
主站蜘蛛池模板: 娱乐| 遂川县| 新营市| 化德县| 日土县| 赤城县| 溧阳市| 中西区| 商洛市| 衡南县| 浙江省| 府谷县| 潍坊市| 逊克县| 荔波县| 济南市| 福贡县| 松阳县| 北碚区| 香河县| 扬州市| 佛冈县| 西贡区| 区。| 沙洋县| 古浪县| 互助| 花莲市| 景宁| 宜兰县| 德令哈市| 旅游| 错那县| 柳州市| 巩义市| 柳林县| 勐海县| 武宁县| 鲜城| 清丰县| 清河县|