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552G-02ILNT

P1-P3P4-P6P7-P7
DATASHEET
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER ICS552-02
IDT™ / ICS™
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER 1
ICS552-02 REV K 092309
Description
The ICS552-02 is a low skew, single-input to eight-
output clock buffer. The device offers a dual input with
pin select for switching between two clock sources. It is
part of IDT’s ClockBlocks
TM
family. See the ICS553 for
a 1 to 4 low skew buffer. For more than 8 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 (50ps maximum)
•
Packaged in 16 pin TSSOP
•
Available in 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 clocks
•
Input/Output clock frequency up to 200 MHz
•
Input clock multiplexer simplifies clock selection
•
Industrial temperature
NOTE: EOL for non-green parts to occur on
5/13/10 per PDN U-09-01
Block Diagram
O E
Q 3
Q 4
Q 2
Q 5
Q 6
Q 1
Q 0
Q 7
IN A
IN B
1
0
SELA
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER CLOCK MUX AND BUFFER
IDT™ / ICS™
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER 2
ICS552-02 REV K 092309
Pin Assignment Input Source Select
Pin Descriptions
External Components
A minimum number of external components are required for proper operation. Decoupling capacitors of
0.01 µF should be connected between VDD on pin 2 and GND on pin 7, and between VDD on pin 15 and
GND on pin 10, as close to the device as possible. A 33 Ω series terminating resistor should be used on
each clock output if the trace is longer than 1 inch.
To achieve the low output skews that the ICS552-02 is capable of, careful attention must be paid to board
layout. Essentially, all 8 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 30Ω series termination
on one output (with 33Ω on the others) will cause at least 15ps of skew.
12
1
11
2
10
3
9
OE
4
VDD
5
Q0
6
VDD
7
Q1
8
Q2
Q7
Q6
Q5
Q3
Q4
INA
GND GND
16
15
14
13
INB
SELA
16 Pin TSSOP
SELA Input
0 INB
1 INA
Pin
Number
Pin
Name
Pin
Type
Pin Description
1 OE Input Output Enable. Tri-states outputs when low. Internal pull-up resistor.
2 VDD Power Connect to +2.5V, +3.3V or +5.0V. Must be the same as pin 15.
3 Q0 Output Clock Output 0
4 Q1 Output Clock Output 1
5 Q2 Output Clock Output 2
6 Q3 Output Clock Output 3
7 GND Power Connect to ground.
8 INB Input Clock Input B. 5V tolerant input.
9 INA Input Clock Input A. 5V tolerant input.
10 GND Power Connect to ground.
11 Q4 Output Clock Output 4
12 Q5 Output Clock Output 5
13 Q6 Output Clock Output 6
14 Q7 Output Clock Output 7
15 VDD Power Connect to + 2.5V, +3.3V or +5.0V. Must be the same as pin 2.
16 SELA Input Selects either INA or INB. Internal pull-up resistor.
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER CLOCK MUX AND BUFFER
IDT™ / ICS™
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER 3
ICS552-02 REV K 092309
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS552-02. 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
SELA, OE, and all Outputs -0.5 V to VDD+0.5 V
INA and INB -0.5V to 5.5V
Ambient Operating Temperature -40 to +85 ° C
Storage Temperature -65 to +150 ° C
Junction Temperature 175 ° C
Soldering Temperature 260 ° C
Parameter Min. Typ. Max. Units
Ambient Operating Temperature -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, INA, INB V
IH
Note 1 VDD/2+0.5 5.5 V
Input Low Voltage, INA, INB V
IL
Note 1 VDD/2-0.5 V
Input High Voltage, OE, SELA V
IH
1.8 VDD V
Input Low Voltage, OE, SELA 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 35 mA
Short Circuit Current I
OS
Each output 60 mA
P1-P3P4-P6P7-P7

552G-02ILNT

Mfr. #:
Buy 552G-02ILNT
Manufacturer:
IDT
Description:
Clock Buffer OSCILLATOR, BUFFER AND MULTIPLIER
Lifecycle:
New from this manufacturer.
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