CDC925 Datasheet, PDF (7/18 Pages) Texas Instruments – 133-MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS WITH 3-STATE OUTPUTS

CDC925
133-MHz CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS
WITH 3-STATE OUTPUTS
SCAS633 – JULY 28, 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
VIK Input clamp voltage
RI
Input resistance
IIH
High-level input current
XIN-XOUT
XOUT
SEL0, SEL1,
CPU_STOP,
PCI_STOP,
SPREAD
VDD = 3.135 V,
VDD = 3.465 V,
VDD = 3.135 V,
VDD = 3.465 V,
II = –18 mA
VI = VDD –0.5 V
VI = VDD –0.5 V
VI = VDD
–1.2 V
80
350 kΩ
20
50 mA
<10
10 µA
IIL
Low-level input current
PWR_DWN
SEL133/100
XOUT
SEL0, SEL1,
CPU_STOP,
PCI_STOP,
SPREAD
VDD = 3.465 V,
VDD = 3.465 V,
VDD = 3.135 V,
VDD = 3.465 V,
VI = VDD
VI = VDD
VO = 0 V
VI = GND
<10
10 µA
<10
10 µA
– 2 – 5 mA
<10 –10 µA
PWR_DWN
SEL133/100
IOZ High-impedance-state output current
VDD = 3.465 V,
VDD = 3.465 V,
|VDD| = max,
VDD = 2.625 V,
All outputs = low
VI = GND
VI = GND
VO = VDD or GND
PWR_DWN = low,
<10 –10 µA
<10 –10 µA
±10 µA
<20 100
IDD Supply current
VDD = 2.625 V,
All outputs = high
VDD = 3.465 V,
All outputs = low
VDDx = 2.5 V,
PWR_DWN = low,
<20 100 µA
<50 200
IDD(Z) High-impedance-state supply current
Dynamic supply current
VDD = 3.465 V,
VDD = 2.625 V
VDD = 3.465 V
CL = 20 pF,
CPU = 133 MHz
CI
Input capacitance
VDD = 3.3 V,
Crystal terminal capacitance
VDD = 3.3 V,
† _{All typical values are measured at their respective nominal VDD values.}
All outputs = high
VDD = 3.465 V
VDD = 2.625 V
VI = VDD or GND
VI = 0.3 V
12
35 mA
1.4
mA
28
114 146
mA
52
70
3.3
5.8 pF
18 18.5 22.5 pF
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