DataSheet39.com

What is ICS952621?

This electronic component, produced by the manufacturer "ICS", performs the same function as "Programmable Timing Control Hub".


ICS952621 Datasheet PDF - ICS

Part Number ICS952621
Description Programmable Timing Control Hub
Manufacturers ICS　
Logo ICS Logo　


There is a preview and ICS952621 download ( pdf file ) link at the bottom of this page.





Total 15 Pages



Preview 1 page

No Preview Available ! ICS952621 datasheet, circuit

www.DataSheet4U.com
Integrated
Circuit
Systems, Inc.
ICS952621
Programmable Timing Control Hub™ for Next Gen P4™ processor
Recommended Application:
CK409 48-pin part
Output Features:
• 2 - 0.7V current-mode differential CPU pairs
• 1 - 0.7V current-mode differential CPU pairs for ITP
• 1 - 0.7V current-mode differential SRC pair
• 9 - PCI (33MHz), including 3 free running PCI
• 1 - USB, 48MHz
• 1 - DOT, 48MHz
• 2 - REF, 14.318MHz
• 3 - 3V66, 66.66MHz
• 1 - 3V66/VCH, selectable 48MHz or 66MHz
Key Specifications:
• CPU/SRC outputs cycle-cycle jitter < 125ps
• 3V66 outputs cycle-cycle jitter < 250ps
• PCI outputs cycle-cycle jitter < 250ps
• CPU outputs skew: < 100ps
• +/- 300ppm frequency accuracy on CPU & SRC clocks
Functionality
FS2 CPU SRC
B6b5 FS_A FS_B MHz MHz
0 0 100.00 100/200
0 0 1 200.00 100/200
1 0 133.33 100/200
1 1 166.66 100/200
0 0 200.00 100/200
1 0 1 400.00 100/200
1 0 266.66 100/200
1 1 333.33 100/200
3V66
MHz
66.66
66.66
66.66
66.66
66.66
66.66
66.66
66.66
PCI
MHz
33.33
33.33
33.33
33.33
33.33
33.33
33.33
33.33
REF
MHz
14.318
14.318
14.318
14.318
14.318
14.318
14.318
14.318
USB/
DOT
MHz
48.00
48.00
48.00
48.00
48.00
48.00
48.00
48.00
Features/Benefits:
• Supports tight ppm accuracy clocks for Serial-ATA
• Supports spread spectrum modulation, 0 to -0.5%
down spread and +/- 0.25% center spread
• Supports CPU clks up to 400MHz in test mode
• Uses external 14.318MHz crystal
• Supports undriven differential CPU, SRC pair in PD#
and CPU_STOP# for power management.
Pin Configuration
FS_A/REF1 1
FS_B/REF0 2
VDDREF 3
X1 4
X2 5
GND 6
PCICLK_F0 7
PCICLK_F1 8
PCICLK_F2 9
VDDPCI 10
GND 11
PCICLK0 12
PCICLK1 13
PCICLK2 14
PCICLK3 15
VDDPCI 16
GND 17
PCICLK4 18
PCICLK5 19
PD# 20
48MHz_DOT 21
48MHz_USB 22
GND 23
VDD48 24
48 VDDA
47 GND
46 IREF
45 CPUCLKT_ITP
44 CPUCLKC_ITP
43 GND
42 CPUCLKT1
41 CPUCLKC1
40 VDDCPU
39 CPUCLKT0
38 CPUCLKC0
37 GND
36 SRCCLKT
35 SRCCLKC
34 VDD
33 VttPWR_GD#
32 SDATA
31 SCLK
30 3V66_0
29 3V66_1
28 GND
27 VDD3V66
26 3V66_2
25 3V66_3/VCH
**120KΩ pull-down
48-pin SSOP
0756A—09/10/04

line_dark_gray
ICS952621 equivalent
www.DataSheet4U.com
Integrated
Circuit
Systems, Inc.
ICS952621
Electrical Characteristics - CPU & SRC 0.7V Current Mode Differential Pair
TA = 0 - 70°C; VDD = 3.3V +/-5%; CL =2pF
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS NOTES
Current Source Output
Impedance
Zo1
VO = Vx
3000
Ω
Voltage High
Voltage Low
VHigh
VLow
Statistical measurement on single 660
ended signal using oscilloscope
math function.
-150
749
3
850
150
mV
Max Voltage
Min Voltage
Crossing Voltage (abs)
Crossing Voltage (var)
Long Accuracy
Vovs
Vuds
Vcross(abs)
d-Vcross
ppm
Measurement on single ended
signal using absolute value.
Variation of crossing over all
edges
see Tperiod min-max values
200MHz nominal
-300
250
756
-7
350
12
-300
0
4.9985 5.0000
1150
550
140
300
5.0015
mV
mV
mV
ppm
ns
200MHz spread
166.66MHz nominal
4.9985
5.0266
5.9982 6.0000 6.0018
ns
ns
Average period
Tperiod
166.66MHz spread
133.33MHz nominal
133.33MHz spread
100.00MHz nominal
100.00MHz spread
5.9982
6.0320
7.4978 7.5000 7.5023
7.4978
5.4000
9.9970 10.0000 10.0030
9.9970
10.0533
ns
ns
ns
ns
ns
Absolute min period
Tabsmin
200MHz nominal
166.66MHz nominal/spread
133.33MHz nominal/spread
100.00MHz nominal/spread
4.8735
5.8732
7.3728
9.8720
ns
ns
ns
ns
Rise Time
tr
VOL = 0.175V, VOH = 0.525V
175 279
700
ps
Fall Time
tf
VOH = 0.525V VOL = 0.175V
175 280
700
ps
Rise Time Variation
d-tr
30 125
ps
Fall Time Variation
d-tf
30 125
ps
Duty Cycle
dt3
Measurement from differential
wavefrom
45
50.9
55
%
Skew
tsk3
VT = 50%
8 100 ps
Jitter, Cycle to cycle
tjcyc-cyc
Measurement from differential
wavefrom
40 125
ps
1Guaranteed by design, not 100% tested in production.
2 All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is at
14.31818MHz
SRC clock outputs run at only 100MHz or 200MHz, specs for 133.33 and 166.66 do not apply to SRC clock pair.
1
1
1
1
1
1
1
1,2
2
2
2
2
2
2
2
2
1,2
1,2
1,2
1,2
1
1
1
1
1
1
1
0756A—09/10/04
5


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ICS952621 electronic component.


Information Total 15 Pages
Link URL [ Copy URL to Clipboard ]
Download [ ICS952621.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
ICS952621The function is Programmable Timing Control Hub for Next Gen P4 processor. Integrated Circuit SystemsIntegrated Circuit Systems
ICS952621The function is Programmable Timing Control Hub. ICSICS
ICS952623The function is Programmable Timing Control Hub. ICSICS

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

ICS9     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search