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Número de pieza ASM5P2305A
Descripción 3.3V Zero Delay Buffer
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ASM5P2305A, ASM5P2309A
3.3 V Zero Delay Buffer
Description
ASM5P2309A is a versatile, 3.3 V zerodelay buffer designed to
distribute highspeed clocks. It accepts one reference input and drives
out nine lowskew clocks. It is available in a 16pin package. The
ASM5P2305A is the eightpin version of the ASM5P2309A. It
accepts one reference input and drives out five lowskew clocks.
The 1H version of the ASM5P230xA operates at up to 133 MHz
frequencies, and has higher drive than the 1 devices. All parts have
onchip PLLs that lock to an input clock on the REF. The PLL
feedback is onchip and is obtained from the CLKOUT.
ASM5P2309A has two banks of four outputs each, which can be
controlled by the Select inputs as shown in the Select Input Decoding
Table. The select input also allows the input clock to be directly
applied to the outputs for chip and system testing purposes.
Multiple ASM5P2309A and ASM5P2305A devices can accept the
same input clock and distribute it. In this case the skew between the
outputs of the two devices is guaranteed to be less than 700 pS.
All outputs have less than 200 pS of cycletocycle jitter. The input
and output propagation delay is guaranteed to be less than ±350 pS,
and the output to output skew is guaranteed to be less than 200 pS.
The ASM5P2309A and the ASM5P2305A are available in two
different configurations, as shown in the ordering information table.
The ASM5P2305A1 / ASM5P2309A1 is the base part. The
ASM5P2305A1H / ASM5P2309A1H is the high drive version of
the 1 and its rise and fall times are faster than 1 part.
Features
10 MHz to 133 MHz Operating Range, Compatible with CPU and
PCI Bus Frequencies
Zero Inputoutput Propagation Delay
Multiple Lowskew Outputs
Outputoutput Skew less than 200 pS
Devicedevice Skew less than 700 pS
One Input Drives 9 Outputs, Grouped as
4 + 4 + 1 (ASM5P2309A)
One Input Drives 5 Outputs (ASM5P2305A)
Less than 200 pS CycletoCycle Jitter is Compatible with Pentium®
Based Systems
Test Mode to Bypass PLL (ASM5P2309A Only, Refer to Select Input
Decoding Table)
Packaging Information:
ASM5P2309A: 16pin SOIC, TSSOP
ASM5P2305A: 8pin SOIC, TSSOP
Commercial and Industrial Temperature Range
3.3 V Operation
Advanced 0.35 m CMOS Technology
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
SOIC8
S SUFFIX
CASE 751BD
TSSOP8
T SUFFIX
CASE 948AL
SOIC16
S SUFFIX
CASE 751BG
TSSOP16
T SUFFIX
CASE 948AN
PIN CONFIGURATIONS
1
REF
CLKOUT
CLK CLK4
CLK1
GND
REF
ASM5P2305A
(Top View)
1
VDD
CLK3
CLKOUT
CLKA1
CLKA4
CLKA2
CLKA3
VDD
GND
VDD
GND
CLKB1
CLKB4
CLKB2
CLKB3
S2 S1
ASM5P2309A
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
August, 2011 Rev. 4
1
Publication Order Number:
ASM5P2305A/D

1 page




ASM5P2305A pdf
ASM5P2305A, ASM5P2309A
Table 7. SWITCHING CHARACTERISTICS (for ASM5P2305A (1, 1H) and ASM5P2309A (1, 1H) (Notes 7, 8)
Parameter
Test Conditions
Min Typ Max
Output Frequency
30 pF load
10 pF load
10 100
10 133
Duty Cycle (Note 9)
Output Rise Time (Note 9)
Measured at 1.4 V, FOUT > 50 MHz
Measured at VDD /2, FOUT 50 MHz
Measured between 0.8 V and 2.0 V
(1)
40 50 60
45 50 55
2.25
(1H)
1.5 2
Output Fall Time (Note 9)
Measured between 2.0 V and 0.8 V
(1)
2.25
(1H)
1.5 2
Outputtooutput skew (Note 9)
All outputs equally loaded
200
Delay, REF Rising Edge to
CLKOUT Rising Edge (Note 9)
Measured at VDD /2
0 ±350
DevicetoDevice Skew (Note 9)
Cycletocycle Jitter (Note 9)
Measured at VDD/2 on the CLKOUT pins of the device
Measured at 66.67 MHz, loaded outputs
0 700
200
PLL Lock Time (Note 9)
Stable power supply, valid clock presented on REF pin
7. For all measurements use Test Circuit #1.
8. All parameters are specified with loaded outputs.
9. Parameter is guaranteed by design and characterization. Not 100% tested in production.
1.0
Unit
MHz
%
nS
nS
pS
pS
pS
pS
mS
+3.3 V
TEST CIRCUIT #1
0.1 mF
VDD
ASM5P2305A
ASM5P2309A
GND
22 W
22 W
CLK OUT
CLOAD
CLK A / CLK B
CLOAD
Figure 3. Test Circuit
http://onsemi.com
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ASM5P2305A arduino
ASM5P2305A, ASM5P2309A
Table 8. ORDERING INFORMATION
Part Number
Marking
P5P2309AF116ST
5P2309AF1
P5I2309AF116ST
5I2309AF1
P5P2309AF116SR
5P2309AF1
P5I2309AF116SR
5I2309AF1
P5P2309AF116TT
5P2309AF1
ASM5I2309AF116TT
5I2309AF1
P5P2309AF116TR
5P2309AF1
ASM5I2309AF116TR
5I2309AF1
P5P2309AF1H16ST
5P2309AF1H
ASM5I2309AF1H16ST
5I2309AF1H
P5P2309AF1H16SR
5P2309AF1H
ASM5I2309AF1H16SR
5I2309AF1H
ASM5P2309AF1H16TT
5P2309AF1H
ASM5I2309AF1H16TT
5I2309AF1H
P5P2309AF1H16TR
5P2309AF1H
ASM5I2309AF1H16TR
5I2309AF1H
P5P2305AF108ST
5P2305AF1
P5I2305AF108ST
5I2305AF1
P5P2305AF108SR
5P2305AF1
ASM5I2305AF108SR
5I2305AF1
ASM5P2305AF108TT
5P2305AF1
ASM5I2305AF108TT
5I2305AF1
ASM5P2305AF108TR
5P2305AF1
ASM5I2305AF108TR
5I2305AF1
ASM5P2305AF1H08ST
5P2305AF1H
P5I2305AF1H08ST
5I2305AF1H
P5P2305AF1H08SR
5P2305AF1H
P5I2305AF1H08SR
5I2305AF1H
ASM5P2305AF1H08TT
5P2305AF1H
ASM5I2305AF1H08TT
5I2305AF1H
P5P2305AF1H08TR
5P2305AF1H
P5I2305AF1H08TR
5I2305AF1H
Package Type
16pin 150mil SOICTUBE,Pb Free
16pin 150mil SOICTUBE,Pb Free
16pin 150mil SOICTAPE & REEL,Pb Free
16pin 150mil SOICTAPE & REEL,Pb Free
16pin 4.4mm TSSOP TUBE,Pb Free
16pin 4.4mm TSSOP TUBE,Pb Free
16pin 4.4mm TSSOP TAPE & REEL,Pb Free
16pin 4.4mm TSSOP TAPE & REEL,Pb Free
16pin 150mil SOICTUBE,Pb Free
16pin 150mil SOICTUBE,Pb Free
16pin 150mil SOICTAPE & REEL,Pb Free
16pin 150mil SOICTAPE & REEL,Pb Free
16pin 4.4mm TSSOP TUBE,Pb Free
16pin 4.4mm TSSOP TUBE,Pb Free
16pin 4.4mm TSSOP TAPE & REEL,Pb Free
16pin 4.4mm TSSOP TAPE & REEL,Pb Free
8pin 150mil SOICTUBE,Pb Free
8pin 150mil SOICTUBE,Pb Free
8pin 150mil SOICTAPE & REEL,Pb Free
8pin 150mil SOICTAPE & REEL,Pb Free
8pin 4.4mm TSSOP TUBE,Pb Free
8pin 4.4mm TSSOP TUBE,Pb Free
8pin 4.4mm TSSOP TAPE & REEL,Pb Free
8pin 4.4mm TSSOP TAPE & REEL,Pb Free
8pin 150mil SOICTUBE,Pb Free
8pin 150mil SOICTUBE,Pb Free
8pin 150mil SOICTAPE & REEL,Pb Free
8pin 150mil SOICTAPE & REEL,Pb Free
8pin 4.4mm TSSOP TUBE,Pb Free
8pin 4.4mm TSSOP TUBE,Pb Free
8pin 4.4mm TSSOP TAPE & REEL,Pb Free
8pin 4.4mm TSSOP TAPE & REEL,Pb Free
Temperature
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
http://onsemi.com
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