參數(shù)資料
型號: ICS951412YGLFT
英文描述: System Clock Chip for ATI RS480 K8-based Systems
中文描述: 系統(tǒng)時鐘芯片為ATI RS480基于K8系統(tǒng)
文件頁數(shù): 10/19頁
文件大小: 283K
代理商: ICS951412YGLFT
10
ICS951412
0883G—12/08/04
Absolute Maximum Ratings
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . 3.8V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to V
DD
+3.8 V
Ambient Operating Temperature . . . . . . . . . . 0°C to +70°C
Storage Temperature. . . . . . . . . . . . . . . . . . . . –65°C to +150°C
ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . Input ESD protection usung human body model > 1KV
Stresses above those listed under Absolute Maximum Ratingsmay cause permanent damage to the device. These
ratings are stress specifications only and functional operation of the device at these or any other conditions above those
listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect product reliability.
Electrical Characteristics - Input/Supply/Common Output Parameters
T
A
= 0 - 70°C; Supply Voltage V
DD
= 3.3 V +/-5%
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS NOTES
Input High Voltage
V
IH
3.3 V +/-5%
2
V
DD
+ 0.3
V
1
Input Low Voltage
V
IL
3.3 V +/-5%
V
SS
- 0.3
0.8
V
1
Input High Current
I
IH
V
IN
= V
DD
-5
5
uA
1
I
IL1
V
IN
= 0 V; Inputs with no pull-up
resistors
V
IN
= 0 V; Inputs with pull-up
resistors
all outputs driven
V
DD
= 3.3 V
-5
uA
1
I
IL2
-200
uA
1
Operating Current
Input Frequency
3
Pin Inductance
1
I
DD3.3OP
F
i
L
pin
C
IN
C
OUT
C
INX
300
mA
MHz
nH
pF
pF
pF
14.31818
3
1
1
1
1
7
5
6
5
Logic Inputs
Output pin capacitance
X1 & X2 pins
From V
DD
Power-Up or de-assertion
of PD# to 1st clock
Triangular Modulation
Clk Stabilization
1,2
T
STAB
3
ms
1,2
Modulation Frequency
SMBus Voltage
Low-level Output Voltage
Current sinking at V
OL
= 0.4 V
SCLK/SDATA
Clock/Data Rise Time
3
SCLK/SDATA
Clock/Data Fall Time
3
1
Guaranteed by design and characterization, not 100% tested in production.
2
See timing diagrams for timing requirements.
3
Input frequency should be measured at the REFOUT pin and tuned to ideal 14.31818MHz to meet
ppm frequency accuracy on PLL outputs.
30
2.7
33
5.5
0.4
kHz
V
V
mA
1
1
1
1
V
DD
V
OL
I
PULLUP
@ I
PULLUP
4
T
RI2C
(Max VIL - 0.15) to (Min VIH + 0.15)
1000
ns
1
T
FI2C
(Min VIH + 0.15) to (Max VIL - 0.15)
300
ns
1
Input Low Current
Input Capacitance
1
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