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參數(shù)資料
| 型號(hào)： | CY2220 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 133-MHz Spread Spectrum Clock Synthesizer/Driver With Differential CPU Outputs |
| 中文描述： | 133 - MHz的擴(kuò)頻時(shí)鐘合成器/驅(qū)動(dòng)器，差分輸出的CPU |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大小： | 128K |
| 代理商： | CY2220 |
CY2220
Document #: 38-07206 Rev. *A
Page 4 of 11
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Supply Voltage....................................................
–
0.5 to +7.0V
Input Voltage...............................................
–
0.5V to V
DD
+ 0.5
Storage Temperature (Non-Condensing).......
–
65
°
C to +150
°
C
Junction Temperature..................................................
+150
°
C
Package Power Dissipation................................................1W
Static Discharge Voltage
(per JEDEC EIA/JESD22-A114-A)................................2000V
Operating Conditions
Over which Electrical Parameters are Guaranteed
Parameter
Description
Min.
3.135
Max.
3.465
Unit
V
V
DDREF
, V
DDPCI
, AV
DD
,
V
DD3V66
,
V
DDUSB,
V
DDCPU,
V
DDMEM
T
A
C
in
C
XTAL
C
L
3.3V Supply Voltages
Operating Temperature, Ambient
Input Pin Capacitance Nominal Value
XTAL Pin Capacitance
Max. Capacitive Load on
MemRef, USBCLK, REF
PCICLK, 3V66
Reference Frequency, Oscillator Nominal Value
Power-up time for all VDD's to reach minimum
specified voltage (power ramps must be monotonic)
0
70
°
C
pF
pF
pF
18 pF
18 pF
22.5
20
30
f
(REF)
14.318
14.318
MHz
t
PU
0.05
50
ms
Electrical Characteristics
Over the Operating Range
Parameter
V
IH
V
IL
V
OH
Description
Test Conditions
Min.
2.0
Max. Unit
High-level Input Voltage
Low-level Input Voltage
High-level Output Voltage
Except Crystal Pads. Threshold voltage for crystal pads = V
DD
/2
Except Crystal Pads
MemRef, USB, REF, 3V66
PCI
MemRef, USB, REF, 3V66
PCI
0 < V
IN
< V
DD
0 < V
IN
< V
DD
CPU
For I
OH
=6*IRef Configuration
USB, REF
3V66, PCI, MemRef, MemRefB
USB, REF
3V66, PCI, MemRef, MemRefB
Three-state
3.3V Power Supply Current AV
DD
/V
DD33
= 3.465V, F
CPU
= 133 MHz
3.3V Shutdown Current
AV
DD
/V
DDQ3
= 3.465V
V
V
V
V
V
V
μ
A
μ
A
0.8
I
OH
=
–
1 mA
I
OH
=
–
1 mA
I
OL
= 1 mA
I
OL
= 1 mA
2.4
2.4
V
OL
Low-level Output Voltage
0.4
0.55
5
5
I
IH
I
IL
I
OH
Input High Current
Input Low Current
High-level Output Current
–
5
–
5
Type X1, V
OH
= 0.65V
–
12.9
–
14.9 mA
Type 3, V
OH
= 2.4V
Type 5, V
OH
= 2.4V
Type 3, V
OL
= 0.4V
Type 5, V
OL
=0.4 V
–
15
–
30
10
20
–
51
–
100
24
49
10
250
60
I
OL
Low-level Output Current
mA
I
OZ
I
DD3
I
DDPD3
Output Leakage Current
μ
A
mA
mA
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