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参数资料
| 型号： | IMISC662AAB |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PQFP52 |
| 封装： | QFP-52 |
| 文件页数： | 3/5页 |
| 文件大小： | 147K |
| 代理商： | IMISC662AAB |
SC662
Clock Generator for Power PC Designs with SDRAM and USB Support
Preliminary Product Information
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
Rev.1.1
4/11/97
MILPITAS, CA 95035. TEL: 408-263-6300. FAX 408-263-6571
Page 3 of 5
ELECTRICAL CHARACTERISTICS
Characteristic
Symbol
Min
Typ
Max
Units
Conditions
Input Low Voltage
VIL
-
0.8
Vdc
-
Input High Voltage
VIH
2.0
-
Vdc
-
Input Low, or High Current
with Pull- up or Pull-down
IIL, IIH
-
5 +50
A
S0-S2 Inputs
Output Low Voltage
IOL = 12mA
VOL
-
0.4
Vdc
All Outputs
Output High Voltage
IOH = 12mA
VOH
2.4
-
Vdc
All Outputs
Tri-State leakage Current
Ioz
-
10
A
All Outputs
Dynamic Supply Current
Icc
-
67
-
mA
CPU = 66.6 MHz, PCI = 33.3 Mhz No
Load
Short Circuit Current
ISC
25
-
mA
1 output at a time - 30 seconds
VDD = VDDCPU = VDDRM = 3.3V+5%, TA = 0C to +70C
SWITCHING CHARACTERISTICS
Characteristic
Symbol
Min
Typ
Max
Units
Conditions
Output Rise (0.4V - 2.0V)
and Fall (2.0V-0.4V) time
tTLH,
tTHL
-
1.2
ns
15 pf Load
CPU and PCI outputs
Output Duty Cycle
-
45
50
55
%
Measured at 1.5V
CPU to PCI Offset
tOFF
0
-
2
ns
15 pf Load Measured at 1.5V
Skew All CPU Output
tSKEW
-
250
ps
15 pf Load Measured at 1.5V
Skew All PCI Outputs
tSKEP
-
350
ps
15 pf Load Measured at 1.5V
Period Cycles, CPU
P
-
+250
ps
-
Jitter Absolute, CPU
tjab
-
500
ps
-
VDD = VDDCPU = VDDRM = 3.3V+5%, TA = 0C to +70C
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