OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

553MILF

P1-P3P4-P6P7-P8
DATASHEET
LOW SKEW 1 TO 4 CLOCK BUFFER ICS553
IDT®
LOW SKEW 1 TO 4 CLOCK BUFFER 1
ICS553 REV N 051310
Description
The ICS553 is a low skew, single input to four output,
clock buffer. Part of IDT’s ClockBlocks
TM
family, this is
our lowest skew, small clock buffer.
See the ICS552-02 for a 1 to 8 low skew buffer. For
more than eight outputs, see the MK74CBxxx
Buffalo
TM
series of clock drivers.
IDT makes many non-PLL and PLL based low skew
output devices as well as Zero Delay Buffers to
synchronize clocks. Contact us for all of your clocking
needs.
Features
• Extremely low skew outputs (50 ps maximum)
• Packaged in 8-pin SOIC
• Pb (lead) free package
• Low power CMOS technology
• Operating voltages of 2.5 V to 5 V
• Output Enable pin tri-states outputs
• 5 V tolerant input clock
• Commercial (0 to +70°C) and Industrial (-40 to
+85°C) temperature ranges available
Block Diagram
Q0
ICLK
Q1
Q2
Q3
Output Enable
ICS553
LOW SKEW 1 TO 4 CLOCK BUFFER FAN OUT BUFFER
IDT®
LOW SKEW 1 TO 4 CLOCK BUFFER 2
ICS553 REV N 051310
Pin Assignment
Pin Descriptions
External Components
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
Ω series terminating resistor may be used on each clock output if the trace is longer than 1 inch.
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
Ω series termination
on one output (with 33
Ω on the others) will cause at least 15 ps of skew.
1
2
3
VDD
4
Q0
Q1
Q3
GND
Q2
ICLK
8
7
6
5
OE
8-pin SOIC
Pin
Number
Pin
Name
Pin
Type
Pin Description
1 VDD Power Connect to +2.5 V, +3.3 V or +5.0 V.
2 Q0 Output Clock output 0.
3 Q1 Output Clock output 1.
4 GND Power Connect to ground.
5 ICLK Input Clock input, 5 V tolerant input.
6 Q2 Output Clock Output 2.
7 Q3 Output Clock Output 3.
8 OE Input Output Enable. Tri-states outputs when low. Connect to VDD for normal operation.
ICS553
LOW SKEW 1 TO 4 CLOCK BUFFER FAN OUT BUFFER
IDT®
LOW SKEW 1 TO 4 CLOCK BUFFER 3
ICS553 REV N 051310
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS553. These ratings, which
are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the
device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Recommended Operation Conditions
DC Electrical Characteristics
VDD=2.5 V ±5%, Ambient temperature -40 to +85° C, unless stated otherwise
Item Rating
Supply Voltage, VDD 7 V
Output Enable and All Outputs -0.5 V to VDD+0.5 V
ICLK -0.5 V to 5.5 V
Ambient Operating Temperature (commercial) 0 to +70
° C
Ambient Operating Temperature (industrial) -40 to +85
° C
Storage Temperature -65 to +150
° C
Junction Temperature 125
° C
Soldering Temperature 260
° C
Parameter Min. Typ. Max. Units
Ambient Operating Temperature (commercial) 0 +70 ° C
Ambient Operating Temperature (industrial) -40 +85
° C
Power Supply Voltage (measured in respect to GND) +2.375 +5.25 V
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 2.375 2.625 V
Input High Voltage, ICLK V
IH
Note 1 VDD/2+0.5 5.5 V
Input Low Voltage, ICLK V
IL
Note 1 VDD/2-0.5 V
Input High Voltage, OE V
IH
1.8 VDD V
Input Low Voltage, OE V
IL
0.7 V
Output High Voltage V
OH
I
OH
= -16 mA 2 V
Output Low Voltage V
OL
I
OL
= 16 mA 0.4 V
Operating Supply Current IDD No load, 135 MHz 25 mA
Nominal Output Impedance Z
O
20 Ω
Input Capacitance C
IN
ICLK, OE pin 5 pF
Short Circuit Current I
OS
±28 mA
P1-P3P4-P6P7-P8

553MILF

Mfr. #:
Buy 553MILF
Manufacturer:
IDT
Description:
Clock Buffer LOW SKEW 1 TO 4 CLOCK BUFFER
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet