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參數(shù)資料
| 型號： | 935267751118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 時鐘產生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封裝： | 7.50 MM, PLASTIC, MO-118, SOT-371-1, SSOP-56 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 110K |
| 代理商： | 935267751118 |
Philips Semiconductors
Product specification
PCK2020
CK00 (100/133MHz) spread spectrum
differential system clock generator
2
2000 Nov 13
853-2209 25006
FEATURES
3.3 V operation
Four differential CPU clock pairs
Ten PCI clocks at 3.3 V
Four 66 MHz clocks at 3.3 V
Two 48 MHz clocks at 3.3 V
Two 14.318 MHz reference clocks
100 or 133 MHz operation
Power management control pins
CPU clock skew less than 200 ps cycle-to-cycle
CPU clock skew less than 150 ps pin-to-pin
1.5 ns to 3.5 ns delay on PCI pins
Spread Spectrum capability
DESCRIPTION
The PCK2020 is a clock synthesizer/driver for a Pentium III and
other similar processors.
The PCK2020 has four differential pair CPU current source outputs,
two Mref clock outputs running at 1/2 the CPU clock frequency
depending on the state of SEL133/100 pin and four 3V66 clocks
running at 66 MHz. There are ten PCI clock outputs running at
33 MHz and two 48 MHz clocks. Finally, there are two 3.3 V
reference clocks at 14.318 MHz. All clock outputs meet Intel’s drive
strength, rise/fall times, jitter, accuracy, and skew requirements.
The part possesses a dedicated power-down input pin for power
management control. This input is synchronized on-chip and
ensures glitch-free output transitions.
PIN CONFIGURATION
SW00577
1
2
3
4
5
6
7
8
9
10
11
12
45
46
47
48
49
50
51
52
53
54
55
56
VSSRef
Ref1/MultSel1
VDD3.3Ref
XTAL_IN
XTAL_OUT
VSSPCI
PCICLK0
PCICLK1
VDD3.3PCI
PCICLK2
VDD3.3M
3VMref
3VMref_b
VSSM
SPREAD
CPUCLK0
CPUCLK1
VDD3.3CPU
CPUCLK1
VSSCPU
CPUCLK2
PCICLK3
13
14
15
16
17
18
39
40
41
42
43
44
VSSPCI
PCICLK4
PCICLK5
VDD3.3PCI
PCICLK6
CPUCLK2
CPUCLK3
VDD3.3CPU
CPUCLK3
VSSCPU
PCICLK7
19
38
I_REF
VSSPCI
20
21
22
23
24
25
32
33
34
35
36
37
PCICLK8
PCICLK9
VDD3.3PCI
SEL100/133
VSSUSB
VDD3.3Core
3V66_0
VSSCore
3V66_1
VSS
48MHz0/SelA
26
31 3V66_2
48MHz1/SelB
27
30 3V66_3
VDD3.3USB
28
29
PWRDWN
VDD3.3
Ref0/MultSel0
VDD3.3
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE (
°C)
ORDER CODE
DRAWING NUMBER
56-Pin Plastic SSOP
0 to +70
PCK2020 DL
SOT371-1
Intel and Pentium are registered trademarks of Intel Corporation.
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