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ICS553

Part Number	ICS553
Manufacturer	Renesas
Description	LOW SKEW 1 TO 4 CLOCK BUFFER
Published	Dec 9, 2020
Detailed Description	LOW SKEW 1 TO 4 CLOCK BUFFER DATASHEET ICS553 Description The ICS553 is a low skew, single input to four output, clock...
Datasheet	ICS553 PDF File

Overview

LOW SKEW 1 TO 4 CLOCK BUFFER DATASHEET ICS553 Description The ICS553 is a low skew, single input to four output, clock buffer.
Part of IDT’s ClockBlocksTM 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 BuffaloTM 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 ICLK Q0 Q1 Q2 Q3 Output Enable IDT® LOW SKEW 1 TO 4 CLOCK BUFFER 1 ICS553 REV N 051310 ICS553 LOW SKEW 1 TO 4 CLOCK BUFFER Pin Assignment VDD 1 Q0 2 Q1 3 GND 4 8 OE 7 Q3 6 Q2 5 ICLK 8-pin SOIC FAN OUT BUFFER Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 Pin Name VDD Q0 Q1 GND ICLK Q2 Q3 OE Pin Type Power Output Output Power Input Output Output Input Pin Description 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.
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 geome...

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