PRELIMINARY INFORMATION
ICS551
1 to 4 Clock Buffer
Electrical Specifications
Parameter
Conditions
Minimum
Typical
Maximum Units
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply voltage, VDD
Referenced to GND
7
VDD+0.5
70
V
V
Inputs and Clock Outputs
Ambient Operating Temperature
Soldering Temperature
Referenced to GND
Max of 20 seconds
-0.5
0
°C
°C
°C
260
Storage temperature
-65
150
DC CHARACTERISTICS
Operating Voltage, VDD
3
5.5
V
V
Input High Voltage, VIH, IN
Input Low Voltage, VIL, In
Clock input
Clock input
VDD/2 + 1
VDD/2
VDD/2 VDD/2 - 1
V
Input High Voltage, VIH, OE
Input Low Voltage, VIL, OE
Output High Voltage, VOH, 5V
Output Low Voltage, VOL, 5V
Output High Voltage, VOH, CMOS level
Operating Supply Current, IDD, 3.3V
Short Circuit Current, 3.3 V
Internal pull-up resistor
2
V
0.8
0.4
V
IOH=-25mA
IOL=25mA
IOH=-8mA
No load, 135 MHz
Each output
All inputs
2.4
V
V
VDD-0.4
V
18
mA
mA
kW
±50
200
AC CHARACTERISTICS
Input Frequency
0
160
160
135
1.5
MH z
MH z
MH z
ns
Output Frequency, 3.3 V
Output Frequency, 5 V
Output Clock Rise Time
Output Clock Fall Time
Propagation Delay
15 pF load. Note 3.
15 pF load. Note 3.
0.8 to 2.0V
2.0 to 0.8V
1.5
ns
At 3.3 V
2
4
3
8
6
ns
At 5.0 V
1.5
ns
Output to output skew
Rising edges at VDD/2
250
ps
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged
exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.
2. Duty cycle on outputs will match incoming clock duty cycle. Consult ICS for tight duty cycle clock generators.
3. With external series resistor of 33 W positioned close to each output pin.
MDS 551 B
3
Revision 091200
Printed 11/14/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
