ICS553MILFT IDT, Integrated Device Technology Inc, ICS553MILFT Datasheet - Page 2

• Manufacturer Part Number: ICS553MILFT
• Description: IC CLK BUFFER 1:4 LO SKEW 8-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: ClockBlocks™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS553MILFT

• Number Of Circuits: 1
• Ratio - Input:output: 1:4
• Differential - Input:output: No/No
• Input: CMOS
• Output: CMOS
• Frequency - Max: 200MHz
• Voltage - Supply: 2.375 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Frequency-max: 200MHz
• Number Of Outputs: 4
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 5ns
• Operating Supply Voltage (min): 2.375V
• Mounting: Surface Mount
• Pin Count: 8
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Package Type: SOIC N
• Input Frequency: 200MHz
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 553MILFT; 800-1804-2

IDT™ LOW SKEW 1 TO 4 CLOCK BUFFER
ICS553
LOW SKEW 1 TO 4 CLOCK BUFFER
Pin Assignment
Pin Descriptions
External Components
Number
Pin
1
2
3
4
5
6
7
8
A minimum number of external components are required for proper operation. A decoupling capacitor of
0.01 µF should be connected between VDD on pin 1 and GND on pin 4, as close to the device as possible.
A 33
To achieve the low output skew that the ICS553 is capable of, careful attention must be paid to board
layout. Essentially, all four outputs must have identical terminations, identical loads and identical trace
geometries. If they do not, the output skew will be degraded. For example, using a 30 series termination
on one output (with 33 on the others) will cause at least 15 ps of skew.
GN D
V DD
Q0
Q1
Name
GND
ICLK
VDD
Pin
OE
Q0
Q1
Q2
Q3
series terminating resistor may be used on each clock output if the trace is longer than 1 inch.
1
2
3
4
8 - p i n S OI C
Output
Output
Output
Output
Power
Power
Type
Input
Input
Pin
Connect to +2.5 V, +3.3 V or +5.0 V.
Clock output 0.
Clock output 1.
Connect to ground.
Clock input, 5 V tolerant input.
Clock Output 2.
Clock Output 3.
Output Enable. Tri-states outputs when low. Connect to VDD for normal operation.
8
7
6
5
O E
Q 3
Q 2
I CL K
2
Pin Description
ICS553
FAN OUT BUFFER
REV N 051310