W196 Datasheet, PDF (7/11 Pages) Cypress Semiconductor – Spread Spectrum FTG for 440BX and VIA Apollo Pro-133

PRELIMINARY
W196
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.
Parameter
V_DD, V_IN
T_STG
T_A
T_B
ESD_PROT
Description
Voltage on any pin with respect to GND
Storage Temperature
Operating Temperature
Ambient Temperature under Bias
Input ESD Protection
Rating
Unit
–0.5 to +7.0
V
–65 to +150
°C
0 to +70
°C
–55 to +125
°C
2 (min.)
kV
DC Electrical Characteristics: T_A = 0°C to +70°C, V_DDQ3 = 3.3V±5%, V_DDQ2 = 2.5V±5%
Parameter
Description
Test Condition
Min.
Typ.
Max. Unit
Supply Current
I_DDQ3
Combined 3.3V Supply Current
CPU0:1 =100 MHz
Outputs Loaded^[3]
85
mA
I_DDQ3
Combined 2.5V Supply Current
CPU0:1 =100 MHz
Outputs Loaded^[3]
30
mA
Logic Inputs
V_IL
Input Low Voltage
V_IH
Input High Voltage
I_IL
Input Low Current^[4]
I_IH
Input High Current^[4]
Clock Outputs
GND – 0.3
2.0
0.8
V
V_DD + 0.3 V
–25
µA
10
µA
V_OL
Output Low Voltage
I_OL = 1 mA
50
mV
V_OH
Output High Voltage
I_OH = –1 mA
3.1
V
V_OH
Output High Voltage CPU0:1/IOAPIC I_OH = –1 mA
2.2
V
I_OL
Output Low Current CPU0:1
V_OL = 1.25V
45
60
80
mA
PCI_F, PCI1:6 V_OL = 1.5V
85
110
140
mA
IOAPIC
V_OL = 1.25V
65
90
140
mA
REF2X
V_OL = 1.5V
110
140
170
mA
48MHz, 24MHz V_OL = 1.5V
50
70
90
mA
I_OH
Output High Current CPU0:1
V_OL = 1.25V
35
50
80
mA
PCI_F, PCI1:6 V_OL = 1.5V
60
95
130
mA
IOAPIC
V_OL = 1.25V
45
87
140
mA
REF2X
V_OL = 1.5V
100
130
150
mA
48MHz, 24MHz V_OL = 1.5V
50
70
90
mA
Crystal Oscillator
V_TH
X1 Input Threshold Voltage^[5]
V_DDQ3 = 3.3V
1.65
V
C_LOAD
Load Capacitance, as seen by
External Crystal^[6]
14
pF
C_IN,X1
X1 Input Capacitance^[7]
Pin X2 unconnected
28
pF
Notes:
3. All clock outputs loaded with maximum lump capacitance test load specified in the AC Electrical Characteristics section.
4. W196 logic inputs have internal pull-up resistors, except SEL100/66# (pull-ups not full CMOS level).
5. X1 input threshold voltage (typical) is V_DD/2.
6. The W196 contains an internal crystal load capacitor between pin X1 and ground and another between pin X2 and ground. Total load placed on crystal is
14 pF; this includes typical stray capacitance of short PCB traces to crystal.
7. X1 input capacitance is applicable when driving X1 with an external clock source (X2 is left unconnected).
7