ICS552G-02T [ICSI]
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER; 低偏移2输入多路复用器和1至8时钟缓冲器型号: | ICS552G-02T |
厂家: | INTEGRATED CIRCUIT SOLUTION INC |
描述: | LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER |
文件: | 总6页 (文件大小:93K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK BUFFER
Description
Features
The ICS552-02 is a low skew, single-input to eight-
output clock buffer. It is part of ICS’ Clock BlocksTM
family. See the ICS553 for a 1 to 4 low skew buffer. For
more than 8 outputs see the MK74CBxxx BuffaloTM
series of clock drivers.
• Extremely low skew outputs (50ps maximum)
• Packaged in 16 pin TSSOP
• Low power CMOS technology
• Operating Voltages of 2.5 V to 5 V
• Output Enable pin tri-states outputs
• 5 V tolerant input clocks
ICS 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.
• Input/Output clock frequency up to 200 MHz
• Input clock multiplexer simplifies clock selection
Block Diagram
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
INA
INB
1
0
SELA
OE
MDS 552-02 B
1
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
P R E L I M I N A R Y I N F O R M A T I O N
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK
Pin Assignment
Input Source Select
SELA
Input
INB
OE
VDD
1
16
15
14
13
12
11
10
9
SELA
VDD
Q7
0
1
2
Q0
Q1
3
4
5
6
7
8
INA
Q6
Q2
Q5
Q3
Q4
GND
INB
GND
INA
16 Pin TSSOP
Pin Descriptions
Pin
Number
Pin
Name
OE
Pin
Type
Input
Pin Description
1
Output Enable. Tri-states outputs when low. Internal pull-up resistor.
2
VDD
Q0
Power Connect to +2.5V, +3.3V or +5.0V. Must be the same as pin 15.
Output Clock Output 0
3
4
Q1
Output Clock Output 1
5
Q2
Output Clock Output 2
6
Q3
Output Clock Output 3
7
GND
INB
INA
GND
Q4
Power Connect to ground.
8
Input
Input
Clock Input B. 5V tolerant input.
Clock Input A. 5V tolerant input.
9
10
11
12
13
14
15
16
Power Connect to ground.
Output Clock Output 4
Q5
Output Clock Output 5
Q6
Output Clock Output 6
Q7
Output Clock Output 7
VDD
SELA
Power Connect to + 2.5V, +3.3V or +5.0V. Must be the same as pin 2.
Input
Selects either INA or INB. Internal pull-up resistor.
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.
MDS 552-02 B
2
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
P R E L I M I N A R Y I N F O R M A T I O N
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS552-02. These ratings,
which are standard values for ICS 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.
Item
Rating
Supply Voltage, VDD
All Inputs and Outputs
7 V
-0.5 V to VDD+0.5 V
0 to +70 °C
-65 to +150 °C
175 °C
Ambient Operating Temperature
Storage Temperature
Junction Temperature
Soldering Temperature
260 °C
Recommended Operation Conditions
Parameter
Min.
Typ.
Max.
+70
Units
°C
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
0
–
+2.375
+5.25
V
DC Electrical Characteristics
VDD=2.5 V ±5%, Ambient temperature 0 to +70°C, unless stated otherwise
Parameter
Operating Voltage
Symbol
VDD
VIH
Conditions
Min.
2.375
Typ.
Max.
Units
2.625
5.5
V
V
Input High Voltage, INA, INB
Input Low Voltage, INA, INB
Input High Voltage, OE, SELA
Input Low Voltage, OE, SELA
Output High Voltage
Note 1
Note 1
VDD/2+0.5
VIL
VDD/2-0.5
VDD
V
VIH
2
2
V
VIL
0.4
V
VOH
VOL
IDD
IOS
IOH = -16 mA
IOL = 16 mA
V
Output Low Voltage
0.5
V
Operating Supply Current
Short Circuit Current
No load, 135 MHz
Each output
35
60
mA
mA
MDS 552-02 B
3
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
P R E L I M I N A R Y I N F O R M A T I O N
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK
DC Electrical Characteristics (continued)
VDD=3.3 V ±5%, Ambient temperature 0 to +70°C, unless stated otherwise
Parameter
Operating Voltage
Symbol
VDD
VIH
Conditions
Min.
3.135
Typ.
Max.
3.465
5.5
Units
V
V
V
V
V
V
V
V
Input High Voltage, INA, INB
Input Low Voltage, INA, INB
Input High Voltage, OE, SELA
Input Low Voltage, OE, SELA
Output High Voltage
Note 1
Note 1
VDD/2+0.7
VIL
VDD/2-0.7
VDD
VIH
2
VIL
0.4
VOH
VOL
VOH
IOH = -25 mA
IOH = 25 mA
IOH = -12 mA
2.4
Output Low Voltage
0.8
Output High Voltage (CMOS
Level)
VDD-0.4
Operating Supply Current
Short Circuit Current
IDD
IOS
No load, 135 MHz
Each output
50
80
mA
mA
VDD=5 V ±5%, Ambient temperature 0 to +70°C, unless stated otherwise
Parameter
Operating Voltage
Symbol
VDD
VIH
Conditions
Min.
4.75
Typ.
Max.
5.25
Units
V
V
V
V
V
V
V
V
Input High Voltage, INA, INB
Input Low Voltage, INA, INB
Input High Voltage, OE, SELA
Input Low Voltage, OE, SELA
Output High Voltage
Note 1
Note 1
VDD/2+1
5.5
VIL
VDD/2-1
VDD
0.4
VIH
2
VIL
VOH
VOL
IOH = -45 mA
IOL = 45 mA
IOH = -12 mA
2.4
Output Low Voltage
0.8
Output High Voltage (CMOS
Level)
VOH
VDD-0.4
Operating Supply Current
Short Circuit Current
IDD
IOS
No load, 135 MHz
Each output
85
mA
mA
100
Note: 1. Nominal switching threshold is VDD/2
MDS 552-02 B
4
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
P R E L I M I N A R Y I N F O R M A T I O N
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK
AC Electrical Characteristics
VDD = 2.5V ±5%, Ambient Temperature 0 to +70° C, unless stated otherwise
Parameter
Input Frequency
Symbol
Conditions
Min.
Typ. Max. Units
0
200
MHz
ns
Output Rise Time
tOR
0.8 to 2.0 V, CL=15 pF
2.0 to 0.8 V, CL=15 pF
1.5
1.5
3.5
0
Output Fall Time
tOF
ns
Propagation Delay
Output to output skew
Input A to Input B skew
Note 1
Note 2
Note 3
ns
Rising edges at VDD/2
50
50
ps
0
ps
VDD = 3.3V ±5%, Ambient Temperature 0 to +70° C, unless stated otherwise
Parameter
Input Frequency
Symbol
Conditions
Min.
Typ. Max. Units
0
200
MHz
ns
Output Rise Time
tOR
0.8 to 2.0 V, CL=15 pF
2.0 to 0.8 V, CL=15 pF
1.0
1.0
3.0
0
Output Fall Time
tOF
ns
Propagation Delay
Output to output skew
Input A to Input B skew
Note 1
Note 2
Note 3
ns
Rising edges at VDD/2
50
50
ps
0
ps
VDD = 5.0V ±5%, Ambient Temperature 0 to +70° C, unless stated otherwise
Parameter
Input Frequency
Symbol
Conditions
Min.
Typ. Max. Units
0
200
MHz
ns
Output Rise Time
tOR
0.8 to 2.0 V, CL=15 pF
2.0 to 0.8 V, CL=15 pF
0.7
0.7
2.8
0
Output Fall Time
tOF
ns
Propagation Delay
Output to output skew
Input A to Input B skew
Note 1
Note 2
Note 3
ns
Rising edges at VDD/2
50
50
ps
0
ps
Notes: 1. With rail-to-rail input clock.
2. Between any two outputs with equal loading.
3. Propagation delay matching through the part.
4. Duty cycle on outputs will match incoming clock duty cycle. Consult ICS for tight duty cycle clock
generators.
MDS 552-02 B
5
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
P R E L I M I N A R Y I N F O R M A T I O N
ICS552-02
LOW SKEW 2 INPUT MUX AND 1 TO 8 CLOCK
Package Outline and Package Dimensions (16 pin TSSOP, 173 Mil. Narrow Body)
Package dimensions are kept current with JEDEC Publication No. 95
Millimeters
Min Max
Inches
Max
Symbol
Min
--
A
a
--
1.20
0.15
0.30
0.20
5.10
4.50
0.047
0.006
0.012
0.05
0.19
0.09
4.90
4.30
0.002
0.007
b
Index
Area
c
0.0035 0.008
D
E
e
0.193
0.169
0.201
0.177
E
H
0.65 Basic
6.40 Basic
0.45 0.75
0.0256 Basic
0.252 Basic
H
L
0.018
0.030
Pin 1
D
A
a
c
e
b
L
Ordering Information
Part / Order Number
Marking(both)
Shipping
Package
Temperature
packaging
ICS552G-02
ICS (top line)
Tubes
16 pin TSSOP
16 pin TSSOP
0 to +70° C
0 to +70° C
ICS552G-02T
552G-02 (2nd line)
Tape and Reel
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS)
assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would
result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial
applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary
environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any
circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or
MDS 552-02 B
6
Revision 050401
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 295-9800 ● www.icst.com
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