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ASM2P2351A-24SR [PULSECORE]

Low Skew Clock Driver, 2351 Series, 10 True Output(s), 0 Inverted Output(s), PDSO24, 0.300 INCH, PLASTIC, SOIC-24;
ASM2P2351A-24SR
型号： ASM2P2351A-24SR
厂家： PulseCore Semiconductor    PulseCore Semiconductor
描述：

Low Skew Clock Driver, 2351 Series, 10 True Output(s), 0 Inverted Output(s), PDSO24, 0.300 INCH, PLASTIC, SOIC-24

光电二极管
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October 2005  
rev 0.2  
ASM2P2351AH  
1-Line To 10-Line Clock Driver With 3-State Outputs  
Product Description  
Features  
The ASM2P2351AH is a high-performance clock-driver  
circuit that distributes one input (A) to ten outputs (Y)  
with minimum skew for clock distribution. The output-  
enable (OE) input disables the outputs to a high-  
impedance state. Each output has an internal series  
damping resistor to improve signal integrity at the load.  
The ASM2P2351AH operates at nominal 3.3V Supply  
Voltage.  
•
Low Output Skew, Low Pulse Skew for Clock-  
Distribution and Clock-Generation Applications.  
•
Operates at 3.3V Supply Voltage.  
•
•
LVTTL-Compatible Inputs and Outputs.  
Supports Mixed-Mode Signal Operation.  
(5V Input and Output Voltages With 3.3V Supply  
Voltage).  
The propagation delays are adjusted at the factory  
using the P0 and P1 pins. The factory adjustments  
ensure that the part-to-part skew is minimized and is  
kept within a specified window. Pins P0 and P1 are not  
intended for customer use and should be connected to  
GND.  
•
•
Distributes One Clock Input to Ten Outputs.  
Outputs have Internal Series Damping Resistor  
to Reduce Transmission Line Effects.  
•
•
Distributed VCC and Ground Pins Reduce  
Switching Noise.  
Package Options Include Plastic Small-Outline  
and Shrink Small-Outline Packages.  
The ASM2P2351AH is characterized for operation  
from 0°C to 70°C.  
Logic Diagram (Positive Logic)  
5
OE  
23  
Y1  
21  
Y2  
19  
Y3  
18  
Y4  
6
A
16  
Y5  
7
8
PO P1  
14  
Y6  
11  
Y7  
9
Y8  
4
Y9  
2
Y10  
Alliance Semiconductor  
2575 Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Pin Configuration  
GND  
Y1  
1
2
3
4
24  
23  
22  
21  
GND  
Y10  
VCC  
A
S
M
2
VCC  
Y2  
GND  
Y3  
Y4  
GND  
Y9  
OE  
A
P0  
P1  
5
6
7
8
9
10  
11  
12  
20  
19  
18  
17  
16  
15  
14  
13  
P
2
3
5
Y5  
V
CC  
Y8  
VCC  
1
A
H
Y6  
Y7  
GND  
GND  
SSOP/ SOIC Packages  
TOP VIEW  
Pin Description  
Pin #  
Pin Name  
Typ  
Description  
1
GND  
Y10  
VCC  
Y9  
P
Ground Pin  
Output 10  
2
3
4
5
O
P
O
I
Power Supply Pin  
Output 9  
OE  
Output Enable Pin. When this pin is low, the outputs Y[1:10] are enabled  
and when this pin is high , the outputs Y[1:10] are disabled.  
6
A
I
Input Clock  
No Connect  
No Connect  
Output 8  
7
P0  
-
8
P1  
-
9
Y8  
O
P
O
P
P
O
P
O
P
O
O
P
O
P
O
P
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
VCC  
Y7  
Power Supply  
Output 7  
GND  
GND  
Y6  
Ground Pin  
Ground Pin  
Output 6  
VCC  
Y5  
Power Supply  
Output 5  
GND  
Y4  
Ground Pin  
Output 4  
Y3  
Output 3  
GND  
Y2  
Ground Pin  
Output 2  
VCC  
Y1  
Power Supply  
Output 1  
GND  
Ground Pin  
1-Line To 10-Line Clock Driver With 3-State Outputs  
2 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Function Table  
Inputs  
Outputs  
In  
A
OE  
L
H
Z
Z
L
H
L
H
L
L
H
H
Absolute Maximum Ratings  
Symbol  
Parameter  
Rating  
Unit  
VCC  
VIN  
tSTG  
tA  
Voltage on Supply pin with respect to Ground  
Voltage on any pin with respect to Ground  
Storage temperature  
-0.5 to +4.6  
V
-0.5 to +7.0  
-65 to +125  
0 to 70  
260  
V
°C  
°C  
°C  
°C  
Operating temperature  
ts  
Max. Soldering Temperature (10 sec)  
Junction Temperature  
tJ  
150  
Static Discharge Voltage  
tDV  
2
KV  
(As per JEDEC STD22- A114-B)  
Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect  
device reliability.  
Recommended operating conditions (see Note 3)  
Symbol  
VCC  
VIH  
VIL  
VI  
IOH  
IOL  
fclock  
TA  
Parameter  
Min  
3
2
Max Unit  
Supply voltage  
3.6  
V
V
High-level input voltage  
Low-level input voltage  
Input voltage  
High-level output current  
Low-level output current  
Input clock frequency  
Operating free air temperature  
0.8  
5.5  
–12  
12  
V
V
mA  
mA  
MHz  
°C  
0
100  
70  
0
NOTE 3: Unused pins (input or I/O) must be held high or low.  
.
1-Line To 10-Line Clock Driver With 3-State Outputs  
3 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
rev 0.2  
ASM2P2351AH  
Electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)  
Parameter  
Test Conditions  
II = –18 mA  
IOH = – 12 mA  
IOL = 12 mA  
VI = VCC or GND  
VO = 2.5 V  
Min  
Typ  
Max  
–1.2  
Unit  
V
V
VIK  
VOH  
VOL  
II  
VCC = 3 V,  
VCC = 3 V,  
VCC = 3 V,  
VCC = 3.6 V,  
VCC = 3.6 V,  
VCC = 3.6 V,  
2
0.8  
± 1  
–70  
± 10  
0.3  
15  
V
mA  
mA  
mA  
1
IO  
–7  
IOZ  
VCC = 3 V  
Outputs high  
Outputs low  
Outputs disabled  
f = 10 MHz  
ICC  
VCC = 3.6 V, IO = 0, VI = VCC or GND  
mA  
0.3  
Ci  
Co  
VI = VCC or GND,  
VO = VCC or GND,  
VCC = 3.3 V,  
VCC = 3.3 V,  
4
6
pF  
pF  
f = 10 MHz  
Note: 1 Not more than one output should be tested at a time, and the duration of the test should not exceed one second.  
Switching Characteristics, CL = 50 pF (see Figures 1 and 2)  
ASM2P2351A  
ASM2P2351AH  
From  
To  
VCC = 3.3 V, TA = 25°C  
VCC = 3 V to 3.6 V,  
Parameter  
Unit  
(Input)  
(Output)  
TA = 0°C to 70°C  
Min  
Typ  
4.3  
4.1  
4.9  
4.3  
4.4  
4.6  
0.3  
0.2  
Max  
Min  
Max  
tPLH  
tPHL  
tPZH  
tPZL  
tPHZ  
tPLZ  
tsk(o)  
tsk(p)  
tsk(pr)  
tr  
3.8  
3.6  
2.4  
2.4  
2.2  
2.2  
4.8  
4.6  
6.0  
6.0  
6.3  
6.3  
0.5  
0.8  
1
A
Y
Y
Y
nS  
nS  
nS  
1.8  
1.8  
2.1  
2.1  
6.9  
6.9  
7.1  
7.3  
0.5  
0.8  
1
OE  
OE  
A
A
A
A
A
Y
Y
Y
Y
Y
nS  
nS  
nS  
nS  
nS  
2.5  
2.5  
tf  
1-Line To 10-Line Clock Driver With 3-State Outputs  
4 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
rev 0.2  
ASM2P2351AH  
Switching Characteristics temperature and VCC coefficients over recommended operating free-air  
temperature and VCC range (see Note 3)  
From  
To  
Parameter  
Min  
Max  
Unit  
(Input) (Output)  
tPLH(T)  
tPHL(T)  
Average temperature coefficient of low to high  
propagation delay  
A
A
A
Y
Y
Y
pS/10°C  
pS/10°C  
851  
Average temperature coefficient of high to low  
propagation delay  
Average VCC coefficient of low to high propagation  
delay  
501  
tPLH(VCC  
)
pS/ 100  
mV  
–1452  
tPHL(VCC  
)
Average VCC coefficient of high to low propagation  
pS/ 100  
A
Y
–1002  
delay  
mV  
Note: 1 tPLH(T) and tPHL(T) are virtually independent of VCC  
2 tPLH(VCC) and tPHL(VCC) are virtually independent of temperature.  
3 This data was extracted from characterization material and are not tested at the factory.  
.
1-Line To 10-Line Clock Driver With 3-State Outputs  
5 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Parameter Measurement Information  
6V  
OPEN  
GND  
S1  
500Ω  
From Output  
Under Test  
CL = 50pF  
(see Note A)  
500Ω  
LOAD CIRCUIT  
3V  
1.5V  
TIMING INPUT  
OV  
tsu  
th  
3V  
1.5V  
DATA INPUT  
1.5V  
3V  
1.5V  
1.5V  
INPUT  
O V  
tPLH  
tPHL  
VOH  
2V  
0.8V  
2V  
1.5V  
0.8V  
OUTPUT  
VOL  
tr  
tr  
tW  
3 V  
INPUT  
1.5V  
1.5V  
O V  
1-Line To 10-Line Clock Driver With 3-State Outputs  
6 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
rev 0.2  
ASM2P2351AH  
3 V  
0 V  
Output  
Control  
(low-level  
enabling)  
1.5 V  
1.5 V  
tPLZ  
tPHZ  
3 V  
Output  
Waveform 1  
S1 at 6 V  
(see Note B)  
VOL + O.3 V  
1.5 V  
VOL  
tPHZ  
tPZH  
VOH  
Output  
Waveform 2  
S1 at GND  
(see Note B)  
1.5 V  
VOH. – 0.3 V  
0 V  
Figure 1. Load Circuit and Voltage Waveforms  
NOTES: A. CL includes probe and jig capacitance.  
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.  
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.  
C. All input pulses are supplied by generators having the following characteristics: PRR 3 10 MHz, ZO = 50ꢀ, tr 3 2.5 nS, tf 3 2.5 nS.  
D. The outputs are measured one at a time with one transition per measurement.  
1-Line To 10-Line Clock Driver With 3-State Outputs  
7 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Parameter Measurement Information  
A
Y1  
tPHL 1  
tPLH 1  
Y2  
tPHL 2  
tPLH 2  
Y3  
tPHL 3  
tPLH 3  
Y4  
tPHL 4  
tPLH 4  
tPLH 5  
tPLH 6  
Y5  
tPHL 5  
Y6  
tPHL 6  
Y7  
tPHL 7  
tPLH 7  
Y8  
tPHL 8  
tPLH 8  
Y9  
tPHL 9  
tPLH 9  
Y10  
tPHL 10  
tPLH 10  
Figure 2. Waveforms for Calculation of tsk(o), tsk(p), tsk(pr)  
NOTES: A. Output skew, tsk(o), is calculated as the greater of:  
– The difference between the fastest and slowest of tPLHn (n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)  
– The difference between the fastest and slowest of tPHLn (n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)  
B. Pulse skew, tsk(p), is calculated as the greater of | tPLHn – tPHLn | (n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10).  
C. Process skew, tsk(pr), is calculated as the greater of:  
– The difference between the fastest and slowest of tPLHn (n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) across multiple devices under identical operating conditions  
– The difference between the fastest and slowest of tPHLn (n = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) across multiple devices under identical operating conditions  
1-Line To 10-Line Clock Driver With 3-State Outputs  
8 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Package Information  
24L SSOP Package (209 mil)  
Dimensions  
Millimeters  
Symbol  
Inches  
Min  
Max  
0.079  
…
Min  
…
Max  
2.0  
…
A
A1  
A2  
D
L
E
E1  
R1  
b
….  
0.002  
0.065  
0.315  
0.021  
0.295  
0.197  
0.004  
0.009  
0.004  
0.05  
1.65  
8.00  
0.55  
7.50  
5.00  
0.09  
0.22  
0.09  
0.073  
0.331  
0.037  
0.319  
0.220  
….  
1.85  
8.40  
0.95  
8.10  
5.60  
…..  
0.015  
0.010  
0.38  
0.25  
c
L1  
e
a
0.050REF  
0.026 BSC  
0°  
1.25 REF  
0.65 BSC  
0° 8°  
8°  
1-Line To 10-Line Clock Driver With 3-State Outputs  
9 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
rev 0.2  
ASM2P2351AH  
24L SOIC Package (300 mil)  
Dimensions  
Millimeters  
Symbol  
Inches  
Min  
Max  
0.104  
0.012  
0.094  
0.614  
0.050  
0.299  
….  
Min  
2.35  
0.10  
2.25  
15.20  
0.40  
7.40  
0.08  
0.33  
0.23  
10.00  
Max  
2.65  
0.30  
2.40  
15.60  
1.27  
7.60  
…..  
A
A1  
A2  
D
0.093  
0.004  
0.088  
0.598  
0.016  
0.291  
0.003  
0.013  
0.009  
0.394  
L
E1  
R1  
b
c
E
0.022  
0.015  
0.419  
0.56  
0.38  
10.65  
e
a
0.050 BSC  
0°  
1.27 BSC  
0°  
8°  
8°  
1-Line To 10-Line Clock Driver With 3-State Outputs  
10 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Ordering Information  
Part Number  
Marking  
2P2351AHF  
2P2351AHF  
2P2351AHF  
2P2351AHF  
2P2351AF  
2P2351AF  
2P2351AF  
2P2351AF  
2P2351AHG  
2P2351AHG  
2P2351AHG  
2P2351AHG  
2P2351AG  
2P2351AG  
2P2351AG  
2P2351AG  
2P2351AH  
2P2351AH  
2P2351AH  
2P2351AH  
2P2351A  
Package Type  
24-Pin SSOP, TAPE & REEL, Pb Free  
24-Pin SSOP, TUBE, Pb Free  
24-Pin SOIC, TAPE & REEL, Pb Free  
24-Pin SOIC, TUBE, Pb Free  
24-Pin SSOP, TAPE & REEL, Pb Free  
24-Pin SSOP, TUBE, Pb Free  
24-Pin SOIC, TAPE & REEL, Pb Free  
24-Pin SOIC, TUBE, Pb Free  
24-Pin SSOP, TAPE & REEL, Green  
24-Pin SSOP, TUBE, Green  
24-Pin SOIC, TAPE & REEL, Green  
24-Pin SOIC, TUBE, Green  
24-Pin SSOP, TAPE & REEL, Green  
24-Pin SSOP, TUBE, Green  
24-Pin SOIC, TAPE & REEL, Green  
24-Pin SOIC, TUBE, Green  
24-Pin SSOP, TAPE & REEL  
24-Pin SSOP, TUBE  
Temperature  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
ASM2P2351AHF-24AR  
ASM2P2351AHF-24AT  
ASM2P2351AHF -24SR  
ASM2P2351AHF-24ST  
ASM2P2351AF-24AR  
ASM2P2351AF-24AT  
ASM2P2351AF -24SR  
ASM2P2351AF-24ST  
ASM2P2351AHG-24AR  
ASM2P2351AHG-24AT  
ASM2P2351AHG -24SR  
ASM2P2351AHG-24ST  
ASM2P2351AG-24AR  
ASM2P2351AG-24AT  
ASM2P2351AG -24SR  
ASM2P2351AG-24ST  
ASM2P2351AH-24AR  
ASM2P2351AH-24AT  
ASM2P2351AH -24SR  
ASM2P2351AH-24ST  
ASM2P2351A-24AR  
ASM2P2351A-24AT  
24-Pin SOIC, TAPE & REEL  
24-Pin SOIC, TUBE  
24-Pin SSOP, TAPE & REEL  
24-Pin SSOP, TUBE  
2P2351A  
ASM2P2351A -24SR  
ASM2P2351A-24ST  
2P2351A  
24-Pin SOIC, TAPE & REEL  
24-Pin SOIC, TUBE  
2P2351A  
1-Line To 10-Line Clock Driver With 3-State Outputs  
11 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
ASM2P2351AH  
rev 0.2  
Device Ordering Information  
A S M 2 P 2 3 5 1 A H F - 2 4 A R  
R = Tape & reel, T = Tube or Tray  
O = SOT  
U = MSOP  
E = TQFP  
L = LQFP  
U = MSOP  
P = PDIP  
S = SOIC  
T = TSSOP  
A = SSOP  
V = TVSOP  
B = BGA  
D = QSOP  
X = SC-70  
Q = QFN  
DEVICE PIN COUNT  
F = LEAD FREE AND RoHS COMPLIANT PART  
G = GREEN PACKAGE  
PART NUMBER  
X= Automotive  
I= Industrial  
P or n/c = Commercial  
(0C to +70C)  
(-40C to +125C) (-40C to +85C)  
1 = Reserved  
6 = Power Management  
7 = Power Management  
8 = Power Management  
9 = Hi Performance  
0 = Reserved  
2 = Non PLL based  
3 = EMI Reduction  
4 = DDR support products  
5 = STD Zero Delay Buffer  
ALLIANCE SEMICONDUCTOR MIXED SIGNAL PRODUCT  
Licensed under US patent Nos 5,488,627 and 5,631,920.  
1-Line To 10-Line Clock Driver With 3-State Outputs  
12 of 13  
Notice: The information in this document is subject to change without notice.  
October 2005  
rev 0.2  
ASM2P2351AH  
Copyright © Alliance Semiconductor  
Alliance Semiconductor Corporation  
2575 Augustine Drive,  
Santa Clara, CA 95054  
Tel# 408-855-4900  
All Rights Reserved  
Advance Information  
Part Number: ASM2P2351AH  
Document Version: v0.2  
Fax: 408-855-4999  
www.alsc.com  
Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to Alliance Semiconductor, dated 11-11-2003  
© Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are  
trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their  
respective companies. Alliance reserves the right to make changes to this document and its products at any time without  
notice. Alliance assumes no responsibility for any errors that may appear in this document. The data contained herein  
represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right to change or correct this  
data at any time, without notice. If the product described herein is under development, significant changes to these  
specifications are possible. The information in this product data sheet is intended to be general descriptive information for  
potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or  
customer. Alliance does not assume any responsibility or liability arising out of the application or use of any product  
described herein, and disclaims any express or implied warranties related to the sale and/or use of Alliance products  
including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual  
property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance).  
All sales of Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of  
products from Alliance does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any  
other intellectual property rights of Alliance or third parties. Alliance does not authorize its products for use as critical  
components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant  
injury to the user, and the inclusion of Alliance products in such life-supporting systems implies that the manufacturer  
assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.  
1-Line To 10-Line Clock Driver With 3-State Outputs  
13 of 13  
Notice: The information in this document is subject to change without notice.  

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ASM2P2351AG-24AT

 1-Line To 10-Line Clock Driver With 3-State Outputs
PULSECORE

ASM2P2351AG-24SR

 1-Line To 10-Line Clock Driver With 3-State Outputs
PULSECORE

ASM2P2351AG-24ST

 1-Line To 10-Line Clock Driver With 3-State Outputs
PULSECORE

ASM2P2351AH

 1-Line To 10-Line Clock Driver With 3-State Outputs
PULSECORE

ASM2P2351AH-24AR

 Low Skew Clock Driver, 2351 Series, 10 True Output(s), 0 Inverted Output(s), PDSO24, 0.209 INCH, SSOP-24
PULSECORE

ASM2P2351AH-24AT

 Low Skew Clock Driver, 2351 Series, 10 True Output(s), 0 Inverted Output(s), PDSO24, 0.209 INCH, SSOP-24
PULSECORE
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