W149
| Model | W149 |
| Description | 440BX AGPset Spread Spectrum Frequency Synthesizer |
| PDF file | Total 14 pages (File size: 160K) |
| Chip Manufacturer | CYPRESS |
W149
Absolute Maximum Ratings
Stresses greater than those listed in this table may cause per-
manent damage to the device. These represent a stress rating
only. Operation of the device at these or any other conditions
.
above those specified in the operating sections of this specifi-
cation is not implied. Maximum conditions for extended peri-
ods may affect reliability.
Rating
–0.5 to +7.0
–65 to +150
–55 to +125
0 to +70
2 (min)
Unit
V
°C
°C
°C
kV
Parameter
V
DD
, V
IN
T
STG
T
B
T
A
ESD
PROT
Description
Voltage on any pin with respect to GND
Storage Temperature
Ambient Temperature under Bias
Operating Temperature
Input ESD Protection
DC Electrical Characteristics:
T
A
= 0°C to +70°C; V
DDQ3
= 3.3V±5%; V
DDQ2
= 2.5V±5%
Parameter
Supply Current
I
DD
I
DD
Logic Inputs
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
V
OH
I
OL
Input Low Voltage
Input High Voltage
Input Low Current
[5]
Description
3.3V Supply Current
2.5V Supply Current
Test Condition
CPU0:1 = 100 MHz
Outputs Loaded
[4]
CPU0:1 = 100 MHz
Outputs Loaded
[4]
Min.
Typ.
260
25
Max.
Unit
mA
mA
GND – 0.3
2.0
0.8
V
DD
+ 0.3
–25
10
V
V
µA
µA
mV
V
V
Input High Current
[5]
Output Low Voltage
Output High Voltage
Output High Voltage
Output Low Current
CPU0:1,
IOAPIC
CPU0:1
PCI_F, PCI1:5
IOAPIC
REF0:1
48MHz
24MHz
I
OL
= 1 mA
I
OH
= 1 mA
I
OH
= –1 mA
V
OL
= 1.25V
V
OL
= 1.5V
V
OL
= 1.25V
V
OL
= 1.5V
V
OL
= 1.5V
V
OL
= 1.5V
V
OH
= 1.25V
V
OH
= 1.5V
V
OH
= 1.25V
V
OH
= 1.5V
V
OH
= 1.5V
V
OH
= 1.5V
3.1
2.2
27
20.5
40
25
25
25
25
31
40
27
27
25
57
53
85
37
37
37
55
55
87
44
44
37
Clock Outputs
50
97
139
140
76
76
76
97
139
155
94
94
76
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
I
OH
I
OH
Output High Current
Output High Current
CPU0:1
PCI_F, PCI1:5
IOAPIC
REF0:1
48MHz
24MHz
Notes:
4. All clock outputs loaded with 6" 60Ω traces with 22-pF capacitors.
5. W149 logic inputs have internal pull-up devices (pull-ups not full CMOS level).
9
