PCK2000 [NXP]

CK97 66/100MHz System Clock Generator; CK97 66 / 100MHz的系统时钟发生器
PCK2000
型号: PCK2000
厂家: NXP    NXP
描述:

CK97 66/100MHz System Clock Generator
CK97 66 / 100MHz的系统时钟发生器

时钟发生器
文件: 总14页 (文件大小:94K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
INTEGRATED CIRCUITS  
PCK2000  
CK97 (66/100MHz) System Clock  
Generator  
Product specification  
1998 Sep 29  
Philips  
Semiconductors  
Philips Semiconductors  
Product specification  
CK97 (66/100MHz) System Clock Generator  
PCK2000  
FEATURES  
PIN CONFIGURATION  
Mixed 2.5V and 3.3V operation  
Four CPU clocks at 2.5V  
1
2
3
48  
47  
REF0  
REF1  
V
DDREF  
REF2  
Eight synchronous PCI clocks at 3.3V, one free-running  
Two 2.5V IOAPIC clocks @ 14.318 MHz  
Two 3.3V 48MHz USB clock outputs  
Three 3.3V reference clocks @ 14.318 MHz  
Reference 14.31818 MHz Xtal oscillator input  
100 MHz or 66 MHz operation  
46  
45  
V
V
DDAPIC  
SSREF  
4
5
XTAL_IN  
IOAPIC0  
XTAL_OUT  
44 IOAPIC1  
6
7
43  
42  
41  
V
V
SSAPIC  
SSPCI0  
PCICLK_F  
PCICLK1  
RESERVED  
8
V
DDCPU0  
Part provides frequencies for Pentium Pro and  
9
40  
39  
V
CPUCLK0  
CPUCLK1  
DDPCI0  
Pentium II motherboards  
PCICLK2  
PCICLK3  
10  
11  
12  
Power management control input pins  
175 ps CPU clock jitter  
V
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
SSCPU0  
V
V
DDCPU1  
SSPCI1  
175 ps skew on outputs  
PCICLK4 13  
PCICLK5 14  
CPUCLK2  
CPUCLK3  
1.5 – 4 ns CPU–PCI delay  
V
V
DDPCI1  
SSCPU1  
Power down if PWRDWN is held LOW  
Available in 48-pin SSOP package  
See PCK2000M for 28-pin mobile version  
15  
16  
17  
18  
19  
20  
21  
PCICLK6  
PCICLK7  
V
V
DDCORE1  
SSCORE1  
V
SSPCI2  
PCISTOP  
V
CPUSTOP  
DESCRIPTION  
The PCK2000 is a clock synthesizer/driver chip for a Pentium Pro or  
other similar processors.  
DDCORE0  
V
PWRDWN  
SSCORE0  
48MHz  
V
RESERVED  
DD  
The PCK2000 has four CPU clock outputs at 2.5V. There are eight  
PCI clock outputs running at 33MHz. One of the PCI clock outputs is  
free-running. Additionally, the part has two 3.3V USB clock outputs  
at 48MHz, two 2.5V IOAPIC clock outputs at 14.318MHz, and three  
3.3V reference clock outputs at 14.318MHz. All clock outputs meet  
Intel’s drive strength, rise/fall time, jitter, accuracy, and skew  
requirements.  
22  
27  
26  
25  
48MHz0  
48MHz1  
48MHz  
SEL0  
SEL1  
23  
24  
V
SEL100/66  
SS  
SW00237  
The part possesses dedicated powerdown, CPUSTOP, and  
PCISTOP input pins for power management control. These inputs  
are synchronized on-chip and ensure glitch-free output transitions.  
When the CPUSTOP input is asserted, the CPU clock outputs are  
driven LOW. When the PCISTOP input is asserted, the PCI clock  
outputs are driven LOW, except for free running PCICLK_F clock  
output..  
Finally, when the PWRDWN input pin is asserted, the internal  
reference oscillator and PLLs are shut down, and all outputs are  
driven LOW.  
The PCK2000 is available in a 48–pin SSOP package.  
ORDERING INFORMATION  
PACKAGES  
TEMPERATURE RANGE  
OUTSIDE NORTH AMERICA NORTH AMERICA  
PCK2000 DL PCK2000 DL  
DRAWING NUMBER  
48-Pin Plastic SSOP  
0°C to +70°C  
SOT370-1  
Intel and Pentium are registered trademarks of Intel Corporation.  
2
1998 Sep 29  
853-2129 20102  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
PIN DESCRIPTION  
PIN NUMBER  
SYMBOL  
FUNCTION  
1, 2, 47  
REF [0–2]  
14.318 MHz clock outputs  
GROUND for REF outputs  
POWER for REF outputs  
14.318 MHz crystal input  
14.318 MHz crystal output  
GROUND for PCI outputs  
Free-running PCI output  
POWER for PCI outputs  
PCI clock outputs.  
3
V
SSREF  
V
DDREF  
48  
4
XTAL_IN  
5
XTAL_OUT  
6, 12, 18  
V
SSPCI  
[0–2]  
7
PCICLK_F  
V [0–1]  
DDPCI  
9, 15  
8, 10, 11, 13, 14, 16, 17  
PCICLK [1–7]  
19, 33  
20, 32  
21  
V
[0–1]  
[0–1]  
Isolated POWER for core  
Isolated GROUND for core  
POWER for 48MHz outputs  
DDCORE  
V
SSCORE  
V
DD  
48MHz  
24  
V
48MHz  
GROUND for 48MHz outputs  
48MHz outputs  
SS  
22, 23  
26, 27  
48MHz [0–1]  
SEL0,1  
Logic select pins.  
Select pin for enabling 66 MHz or 100MHz. L = 66 MHz  
H = 100MHz  
25  
SEL100/66  
29  
30  
PWRDWN  
CPUSTOP  
PCISTOP  
Control pin to put device in powerdown state, active low  
Control pin to disable CPU clocks, active low  
Control pin to disable PCI clocks, active low  
POWER for CPU outputs  
31  
37, 41  
34, 38  
35, 36, 39, 40  
43  
V
[0–1]  
[0–1]  
DDCPU  
V
GROUND for CPU outputs  
SSCPU  
CPUCLK [0–3]  
CPU clock outputs @2.5V  
V
GROUND for IOAPIC outputs  
POWER for IOAPIC outputs  
SSAPIC  
V
DDAPIC  
46  
44, 45  
28, 42  
IOAPIC [0–1]  
RESERVED  
IOAPIC output @ 2.5V  
Reserved for future use  
NOTES:  
1. V and V names in the above tables reflects a likely internal POWER and GROUND partition to reduce the effects of internal noise on  
DD  
SS  
the performance of the device. In reality, the platform will be configured with the V  
and V  
pins tied to a 2.5V supply, all  
DDAPIC  
DDCPU  
remaining V pins tied to a common 3.3V supply and all V pins being common.  
DD  
SS  
3
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
BLOCK DIAGRAM  
REFCLK [0–2](14.318 MHz)  
IOAPIC [0–1](14.318 MHz)  
X
X
PWRDWN  
LOGIC  
XTAL_IN  
X
X
14.318  
MHZ  
OSC  
PWRDWN  
LOGIC  
XTAL_OUT  
X
X
PLL2  
PLL1  
48MHz [0–1](48MHz)  
STOP  
LOGIC  
CPUCLK [0–3] (100MHz/66MHz)  
PCICLK_F (33MHz)  
PWRDWN  
LOGIC  
X
X
SEL0 X  
SEL1 X  
LOGIC  
X
SEL100/66  
STOP  
LOGIC  
PCICLK [1–7](33MHz)  
CPUSTOP  
X
PCISTOPX  
X
PWRDWN  
SW00236  
SELECT FUNCTIONS  
SEL100/66  
SEL1  
SEL0  
FUNCTION  
TRI-State  
NOTES  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
1
Reserved  
Reserved  
Active 66MHz  
Test mode  
Reserved  
1
Reserved  
Active 100MHz  
NOTE:  
1. Internal decode logic for all three select inputs implemented.  
OUTPUTS  
FUNCTION  
DESCRIPTION  
CPU  
HI-Z  
PCI, PCI_F  
HI-Z  
48MHz  
HI-Z  
REF  
IOAPIC  
HI-Z  
NOTES  
3-STATE  
HI-Z  
TEST MODE  
TCLK/2  
TCLK/6  
TCLK/2  
TCLK  
TCLK  
NOTE:  
1. TCLK is a test clock driven in on the XTAL_IN input in Test Mode.  
4
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
FUNCTION TABLE  
CPICLK (1–7)  
PCICLK_F  
(MHz)  
REF (0–2)  
IOAPIC (0–1)  
(MHz)  
CPUCLK (0–3)  
(MHz)  
SEL 100/66  
CPU/PCI RATIO  
48MHz (0–1)  
0
1
2
3
66.66  
100  
33.33  
33.33  
14.318  
14.318  
48  
48  
CLOCK ENABLE CONFIGURATION  
OTHER  
CPUSTOP  
PCISTOP  
PWRDWN  
CPUCLK  
PCICLK  
PCICLK_F  
PLLs  
OSCILLATOR  
CLOCKS  
Stopped  
Running  
Running  
Running  
Running  
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
LOW  
LOW  
LOW  
LOW  
LOW  
OFF  
OFF  
33MHz  
33MHz  
33MHz  
33MHz  
Running  
Running  
Running  
Running  
Running  
Running  
Running  
Running  
LOW  
33MHz  
LOW  
100/66MHz  
100/66MHz  
33MHz  
POWER MANAGEMENT REQUIREMENTS  
LATENCY  
SIGNAL  
SIGNAL STATE  
NO. OF RISING EDGES OF FREE RUNNING  
PCICLK  
CPUSTOP  
PCISTOP  
0 (DISABLED)  
1 (ENABLED)  
0 (DISABLED)  
1 (ENABLED)  
1
1
1
1
PWRDWN  
1 (NORMAL OPERATION)  
0 (POWER DOWN)  
3ms  
2 MAX  
NOTES:  
1. Clock ON/OFF latency is defined as the number of rising edges of free running PCICLKs between the clock disable goes HIGH/LOW to the  
first valid clock that comes out of the device.  
2. Power up latency is when PWRDWN goes inactive (HIGH) to when the first valid clocks are driven from the device.  
5
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
1, 2  
ABSOLUTE MAXIMUM RATINGS  
In accordance with the Absolute Maximum Rating System (IEC 134)  
Voltages are referenced to V (V = 0V)  
SS  
SS  
LIMITS  
SYMBOL  
PARAMETER  
CONDITION  
UNIT  
MIN  
–0.5  
–0.5  
–0.5  
MAX  
+4.6  
+4.6  
+3.6  
–50  
V
DC 3.3V core supply voltage  
DC 3.3V I/O supply voltage  
DC 2.5V I/O supply voltage  
DC input diode current  
V
V
DD3  
V
DDQ3  
V
DDQ2  
V
I
V < 0  
mA  
V
IK  
I
V
I
DC input voltage  
Note 2  
–0.5  
–0.5  
–65  
5.5  
I
DC output diode current  
DC output voltage  
V
> V or V < 0  
±50  
mA  
V
OK  
O
CC  
O
V
Note 2  
V
+ 0.5  
O
CC  
I
O
DC output source or sink current  
Storage temperature range  
V
>= 0 to V  
CC  
±50  
mA  
°C  
O
T
STG  
+150  
Power dissipation per package  
plastic medium-shrink (SSOP)  
For temperature range: –40 to +125°C  
above +55°C derate linearly with 11.3mW/K  
P
TOT  
850  
mW  
NOTES:  
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the  
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to  
absolute-maximum-rated conditions for extended periods may affect device reliability.  
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.  
RECOMMENDED OPERATING CONDITIONS  
LIMITS  
SYMBOL  
PARAMETER  
CONDITIONS  
UNIT  
MIN  
3.135  
3.135  
2.135  
0
MAX  
3.465  
3.465  
2.625  
V
DC 3.3V core supply voltage  
DC 3.3V I/O supply voltage  
DC 2.5V I/O supply voltage  
DC input voltage range  
Note 1  
Note 2  
Note 3  
V
V
V
V
DD3  
V
DDQ3  
DDQ2  
V
V
I
V
DD3  
V
V
DDQ2  
DDQ3  
V
DC output voltage range  
0
0
V
O
T
amb  
Operating ambient temperature range in free air  
+70  
°C  
NOTES:  
1. V  
2. V  
3. V  
= V  
= V  
= 3.3V  
DD3  
DDCORE1  
DDCORE2  
= V  
= V  
= V  
= V  
= V  
= 2.5V  
= 3.3V  
DDQ3  
DDQ2  
DDREF  
DDAPIC  
DDPCI0  
DDPCI1  
DD48MHz  
= V  
= V  
DDCPU0  
DDCPU1  
6
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
DC CHARACTERISTICS  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
T
amb  
UNIT  
SYMBOL  
PARAMETER  
V
(V)  
DD  
OTHER  
MIN  
TYP  
MAX  
+ 0.3  
V
DDQ2  
V
DDQ3  
V
DDQ3  
= 2.5V  
±5%  
V
HIGH level input voltage  
LOW level input voltage  
3.135 to 3.465  
2.0  
V
DD  
V
V
V
V
V
V
IH  
= 3.3V  
±5%  
V
3.135 to 3.465  
2.375 to 2.625  
2.375 to 2.625  
3.135 to 3.465  
3.135 to 3.465  
V
– 0.3  
0.8  
IL  
SS  
2.5V output HIGH voltage  
CPUCLK, IOAPIC  
= 3.3V  
±5%  
V
OH2  
I
I
= –1mA  
= 1mA  
2.0  
OH  
2.5V output LOW voltage  
CPUCLK, IOAPIC  
V
I
OL  
0.4  
OL2  
OH3  
3.3V output HIGH voltage  
REF, 48MHz  
V
= –1mA  
2.0  
OH  
3.3V output LOW voltage  
REF, 48MHz  
V
OL3  
I
OL  
= 1mA  
0.4  
V
PCI output HIGH voltage  
PCI output LOW voltage  
3.135 to 3.465  
3.135 to 3.465  
2.375  
I
= –1mA  
2.4  
0.55  
V
V
POH  
OH  
V
I
= 1mA  
POL  
OL  
V
= 1.0V  
= 2.375V  
= 1.4V  
–27  
OUT  
CPUCLK  
output HIGH current  
I
mA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
OH  
2.625  
V
–27  
OUT  
2.375  
V
V
V
–36  
OUT  
OUT  
OUT  
IOAPIC  
output HIGH current  
I
I
I
OH  
OH  
OH  
2.625  
= 2.5V  
–21  
3.135  
= 1.0V  
–29  
48MHz, REF  
output HIGH current  
3.465  
V
= 3.135V  
= 1.0V  
–23  
OUT  
3.135  
V
–33  
OUT  
PCI  
output HIGH current  
3.465  
V
= 3.135V  
= 1.2V  
–33  
OUT  
2.375  
V
V
V
V
27  
OUT  
OUT  
OUT  
OUT  
CPUCLK  
output LOW current  
I
I
I
I
OL  
OL  
OL  
OL  
2.625  
= 0.3V  
30  
2.375  
= 1.0V  
36  
IOAPIC  
output LOW current  
2.625  
= 0.2V  
31  
3.135  
V
OUT  
= 1.95V  
= 0.4V  
29  
48MHz, REF  
output LOW current  
3.465  
V
27  
OUT  
3.135  
V
OUT  
= 1.95V  
= 0.4V  
30  
PCI  
output LOW current  
3.465  
V
38  
5
OUT  
±I  
I
Input leakage current  
3.465  
µA  
µA  
pF  
pF  
3-State output OFF-State  
current  
V
dd  
=
OUT  
±I  
3.465  
I
= 0  
10  
5
OZ  
O
V
or GND  
Cin  
Input pin capacitance  
Xtal pin capacitance, as  
seen by external crystal  
Cxtal  
Cout  
18  
Output pin capacitance  
Operating supply current  
Powerdown supply current  
Operating supply current  
Powerdown supply current  
6
pF  
mA  
mA  
µA  
1
1
66MHz mode  
100MHz mode  
Outputs loaded  
Outputs loaded  
170  
170  
500  
72  
I
I
3.465  
2.625  
dd3  
All static inputs to V  
or GND  
DD  
1
66MHz mode  
100MHz mode  
Output loaded  
Output loaded  
mA  
mA  
µA  
1
100  
100  
dd2  
All static inputs to V  
or GND  
DD  
NOTE:  
1. All clock outputs loaded with maximum lump capacitance test load specified in AC characteristics section.  
7
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
AC CHARACTERISTICS  
VDDREF = VDDPCI (0–1) = VDD48MHz = 3.3V ± 5%; VDDAPIC = VDDCPU (0–1) = 2.5V ± 5%; f  
= 14.31818 MHz  
LIMITS  
crystal  
CPU CLOCK OUTPUTS, CPU(0–3) (LUMP CAPACITANCE TEST LOAD = 20pF)  
TEST CONDITIONS  
T
amb  
= 0°C to +70°C  
SYMBOL  
PARAMETER  
UNIT  
NOTES  
MIN  
15.0  
5.2  
MAX  
T
(t )  
CPUCLK period  
CPUCLK HIGH time  
CPUCLK LOW time  
CPUCLK period  
2
1, 5  
1, 5  
2
15.5  
HKP  
P
T
HKH  
(t )  
H
66MHz  
ns  
T
(t )  
L
5.0  
HKL  
HKP  
HKH  
T
(t )  
P
10.0  
3.0  
10.5  
T
(t )  
H
CPUCLK HIGH time  
CPUCLK LOW time  
CPUCLK rise time  
100MHz  
1, 5  
1, 5  
9
ns  
T
(t )  
L
2.8  
HKL  
T
(t )  
R
0.4  
1.6  
1.6  
175  
55  
ns  
ns  
ps  
%
HRISE  
T
(t )  
CPUCLK fall time  
9
0.4  
HFALL  
F
T
(t  
)
CPUCLK jitter  
JITTER JC  
DUTY CYCLE (t )  
Output Duty Cycle  
1
2
7
45  
D
T
(t  
)
CPU Bus CLK skew  
CPUCLK stabilization from Power-up  
175  
3
ps  
ms  
HSKW SK  
T
(f  
)
HSTB ST  
PCI CLOCK OUTPUTS, PCI(0–7) (LUMP CAPACITANCE TEST LOAD = 30pF)  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
T
amb  
SYMBOL  
PARAMETER  
UNIT  
NOTES  
MIN  
MAX  
T
(t )  
PCICLK period  
PCICLK period stability  
PCICLK HIGH time  
3
8
30.0  
ns  
ps  
ns  
ns  
ns  
ns  
ps  
ns  
ms  
PKP  
P
T
500  
PKPS  
T
PKH  
(t )  
H
1
12.0  
12.0  
0.5  
T
(t )  
L
PCICLK LOW time  
1
PKL  
T
(t )  
R
PCICLK rise time  
10  
10  
2
2.0  
2.0  
500  
4.0  
3
HRISE  
T
(t )  
F
PCICLK fall time  
0.5  
HFALL  
T
(t  
)
PCI Bus CLK skew  
PSKW SK  
T
(t )  
CPUCLK to PCICLK Offset  
PCICLK stabilization from Power-up  
2, 4  
7
1.5  
HPOFFSET  
O
T
(f  
)
PSTB ST  
APIC(0–1) CLOCK OUTPUT (LUMP CAPACITANCE TEST LOAD = 20pF)  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
T
amb  
SYMBOL  
PARAMETER  
UNIT  
NOTES  
MIN  
MAX  
Frequency generated  
by Crystal  
f
Frequency, Actual  
14.31818  
MHz  
T
(t )  
Output rise edge rate  
Output fall edge rate  
1
1
4
4
ns  
ns  
%
HRISE  
R
T
(t )  
F
HFALL  
DUTY CYCLE (t )  
Duty Cycle  
45  
55  
3
D
T
(f  
)
Frequency stabilization from Power-up (cold start)  
ms  
HSTB ST  
8
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
REF(0–2) CLOCK OUTPUT (LUMP CAPACITANCE TEST LOAD = 20pF)  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
T
amb  
SYMBOL  
PARAMETER  
UNIT  
NOTES  
MIN  
MAX  
Frequency generated  
by Crystal  
f
Frequency, Actual  
14.31818  
MHz  
T
(t )  
Output rise edge rate  
Output fall edge rate  
1
1
4
4
ns  
ns  
%
HRISE  
R
T
(t )  
F
HFALL  
DUTY CYCLE (t )  
Duty Cycle  
45  
55  
3
D
T
(f  
)
Frequency stabilization from Power-up (cold start)  
ms  
HSTB ST  
48MHZ(0–1) CLOCK OUTPUT (LUMP CAPACITANCE TEST LOAD = 20pF)  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
T
amb  
SYMBOL  
PARAMETER  
UNIT  
NOTES  
MIN  
MAX  
Determined by PLL  
divider ratio  
f
Frequency, Actual  
48.008  
+167  
MHz  
f
Devation from 48MHz  
Output rise edge rate  
(48.008 – 48)/48  
ppm  
ns  
D
T
(t )  
1
1
4
4
HRISE  
R
T
(t )  
F
Output fall edge rate  
ns  
HFALL  
DUTY CYCLE (t )  
Duty Cycle  
45  
55  
3
%
D
T
(f  
)
Frequency stabilization from Power-up (cold start)  
ms  
HSTB ST  
ALL CLOCK OUTPUTS  
LIMITS  
= 0°C to +70°C  
TEST CONDITIONS  
NOTES  
T
SYMBOL  
PARAMETER  
amb  
UNIT  
MIN  
1.0  
MAX  
8.0  
T
T
, T  
Output enable time  
Output disable time  
ns  
ns  
PZL PZH  
, T  
PLZ PHZ  
1.0  
8.0  
NOTES:  
1. See Figure 3 for measure points.  
2. Period, jitter, offset, and skew are measured on the rising edge @ 1.25V for 2.5V clocks and @ 1.5V for 3.3V clocks.  
3. The PCICLK is the CPUCLK divided by two at CPUCLK = 66.6MHz. PCICLK is the CPUCLK divided by three at CPUCLK = 100MHz.  
4. The CPUCLK must always lead the PCICLK as shown in Figure 2.  
5. T  
6. T  
is measured @ 2.0V as shown in Figure 4.  
is measured @ 0.4V as shown in Figure 4.  
HKH  
HKL  
7. The time is specified from when V  
achieves its nominal operating level (typical condition is V  
= 3.3V) until the frequency output is  
DDQ  
DDQ  
stable and operating within specification.  
8. Defined as once the clock is at its nominal operating frequency, the adjacent period changes cannot exceed the time specified.  
9. T  
10.T  
and T  
and T  
are measured as a transition through the threshold region V = 0.4V and V = 2.0V (1mA) JEDEC specification.  
OL OH  
HRISE  
HRISE  
HFALL  
HFALL  
(48MHz, REF, PC) are measured as a transition through the threshold region V = 0.4V and V = 2.4V  
OL  
OH  
9
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
AC WAVEFORMS  
V
V
V
V
= 1.25V @ V  
and 1.5V @ V  
M
X
Y
DDQ2 DDQ3  
= V + 0.3V  
V
OL  
I
= V –0.3V  
OH  
and V are the typical output voltage drop that occur with the  
OL  
OH  
V
SEL 100, 66,  
SEL1, SEL0  
M
output load.  
GND  
V
DDQ2  
t
t
PZL  
PLZ  
1.25V  
V
DD  
OUTPUT  
LOW-to-OFF  
OFF-to-LOW  
V
V
CPUCLK  
SS  
V
M
V
X
V
OL  
DDQ2  
1.25V  
t
t
PZH  
PHZ  
CPUCLK  
V
SS  
V
OH  
OUTPUT  
V
Y
HIGH-to-OFF  
OFF-to-HIGH  
V
M
T
HSKW  
V
SS  
SW00240  
outputs  
enabled  
outputs  
enabled  
outputs  
disabled  
Figure 1. CPUCLK to CPUCLK skew  
SW00239  
Figure 4. 3-State enable and disable times.  
V
DDQ2  
1.25V  
COMPONENT  
MEASUREMENT  
POINTS  
V
V
CPUCLK  
PCICLK  
SS  
2.5VOLT MEASURE POINTS  
V
DDQ2  
DDQ3  
V
= 2.0V  
OH  
V
= 1.7V  
IH  
1.25V  
1.5V  
V
= 0.7V  
IL  
V
= 0.4V  
OL  
V
SS  
V
SS  
SYSTEM  
MEASUREMENT  
POINTS  
T
HPOFFSET  
COMPONENT  
MEASUREMENT  
POINTS  
SW00241  
3.3VOLT MEASURE POINTS  
Figure 2. CPUCLK to PCICLK offset  
V
DDQ3  
V
= 2.4V  
OH  
V
= 2.0V  
IH  
1.5V  
= 0.7V  
V
IL  
V
= 0.4V  
OL  
T
HKP  
V
SS  
SYSTEM  
MEASUREMENT  
POINTS  
DUTY CYCLE  
T
HKH  
2.0  
1.25  
0.4  
SW00243  
2.5V CLOCKING  
INTERFACE  
Figure 5. Component versus system measure points  
T
HKL  
T
T
FALL  
RISE  
T
PKP  
T
PKH  
2.4  
3.3V CLOCKING  
INTERFACE  
(TTL)  
1.5  
0.4  
T
PKL  
T
T
FALL  
RISE  
SW00242  
Figure 3. 2.5V/3.3V Clock waveforms  
10  
1998 Sep 29  
Philips Semiconductors  
Product specification  
PCK2000  
CK97 (66/100MHz) System Clock Generator  
CPUSTOP  
CPUCLK  
(INTERNAL)  
PCICLK  
(INTERNAL)  
PCICLK  
(FREE-RUNNING)  
CPUSTOP  
CPUCLK  
(EXTERNAL)  
PCISTOP  
CPUCLK  
(INTERNAL)  
PCICLK  
(INTERNAL)  
PCICLK  
(FREE-RUNNING)  
PCISTOP  
PCICLK  
(EXTERNAL)  
PWRDWN  
CPUCLK  
(INTERNAL)  
PCICLK  
(INTERNAL)  
PWRDWN  
CPUCLK  
(EXTERNAL)  
PCICLK  
(EXTERNAL)  
VCO  
CRYSTAL  
SW00244  
Figure 6. Power Management  
11  
1998 Sep 29  
Philips Semiconductors  
Product specification  
CK97 (66/100MHz) System Clock Generator  
PCK2000  
SSOP48: plastic shrink small outline package; 48 leads; body width 7.5 mm  
SOT370-1  
12  
1998 Sep 29  
Philips Semiconductors  
Product specification  
CK97 (66/100MHz) System Clock Generator  
PCK2000  
NOTES  
13  
1998 Sep 29  
Philips Semiconductors  
Product specification  
CK97 (66/100MHz) System Clock Generator  
PCK2000  
Data sheet status  
[1]  
Data sheet  
status  
Product  
status  
Definition  
Objective  
specification  
Development  
This data sheet contains the design target or goal specifications for product development.  
Specification may change in any manner without notice.  
Preliminary  
specification  
Qualification  
This data sheet contains preliminary data, and supplementary data will be published at a later date.  
Philips Semiconductors reserves the right to make chages at any time without notice in order to  
improve design and supply the best possible product.  
Product  
specification  
Production  
This data sheet contains final specifications. Philips Semiconductors reserves the right to make  
changes at any time without notice in order to improve design and supply the best possible product.  
[1] Please consult the most recently issued datasheet before initiating or completing a design.  
Definitions  
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For  
detailed information see the relevant data sheet or data handbook.  
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one  
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or  
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended  
periods may affect device reliability.  
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips  
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or  
modification.  
Disclaimers  
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can  
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications  
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.  
RighttomakechangesPhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,standard  
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no  
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these  
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless  
otherwise specified.  
Philips Semiconductors  
811 East Arques Avenue  
P.O. Box 3409  
Copyright Philips Electronics North America Corporation 1998  
All rights reserved. Printed in U.S.A.  
Sunnyvale, California 94088–3409  
Telephone 800-234-7381  
print code  
Date of release: 05-96  
9397–750-04605  
Document order number:  
Philips  
Semiconductors  

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