W254B Datasheet, PDF (12/16 Pages) SpectraLinear Inc – 133MHz Spread Spectrum FTG for Mobile Pentium® III Platforms

W254B
DC Electrical Characteristics ^[11]
Absolute Maximum DC Power Supply
Parameter
Description
V_DD3
V_DDQ2
V_DDQ3
T_S
3.3V Core Supply Voltage
2.5V I/O Supply Voltage
3.3V Supply Voltage
Storage Temperature
Absolute Maximum DC I/O
Parameter
Description
V_ih3
V_il3
ESD prot.
3.3V Input High Voltage
3.3V Input Low Voltage
Input ESD Protection
DC Operating Requirements
Parameter
Description
V_DD3
V_DDQ3
V_DDQ2
V_DD3 = 3.3V±5%
V_ih3
V_il3
I_il
V_DDQ2 = 2.5V±5%
V_oh2
V_ol2
V_DDQ3 = 3.3V±5%
V_oh3
V_ol3
V_DDQ3 = 3.3V±5%
V_poh3
V_pol3
3.3V Core Supply Voltage
3.3V I/O Supply Voltage
2.5V I/O Supply Voltage
3.3V Input High Voltage
3.3V Input Low Voltage
Input Leakage Current^[12]
2.5V Output High Voltage
2.5V Output Low Voltage
3.3V Output High Voltage
3.3V Output Low Voltage
PCI Bus Output High Voltage
PCI Bus Output Low Voltage
Condition
3.3V±5%
3.3V±5%
2.5V±5%
V_DD3
0<V_in<V_DD3
I_oh = (–1 mA)
I_ol = (1 mA)
I_oh = (–1 mA)
I_ol = (1 mA)
I_oh = (–1 mA)
I_ol = (1 mA)
Min.
–0.5
–0.5
–0.5
–65
Min.
–0.5
–0.5
2000
Max.
4.6
3.6
4.6
150
Max.
4.6
Min.
3.135
3.135
2.375
2.0
V_SS – 0.3
–5
2.0
2.4
2.4
Max.
3.465
3.465
2.625
V_DD + 0.3
0.8
+5
0.4
0.4
0.55
Unit
V
V
V
°C
Unit
V
V
V
Unit
V
V
V
V
V
µA
V
V
V
V
V
V
C_in
Input Pin Capacitance
5
pF
C_xtal
Xtal Pin Capacitance
13.5
22.5
pF
C_out
Output Pin Capacitance
6
pF
L_pin
Pin Inductance
0
7
nH
T_a
Ambient Temperature
No Airflow
0
70
°C
Note:
11. Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
12. Input Leakage Current does not include inputs with pull-up or pull-down resistors.
Rev 1.0, November 20, 2006
Page 12 of 16