ALSC ASM2P3805AHG-20-DT 3.3v cmos buffer clock driver Datasheet

ASM2P3805AH
June 2005
rev 0.2
3.3V CMOS Buffer Clock Driver
Functional Description
Features
ƒ
Advanced CMOS Technology
The ASM2P3805AH is a 3.3V, non-inverting clock driver
ƒ
Guaranteed low skew < 500pS (max.)
built using advanced CMOS technology. The device
ƒ
Very low duty cycle distortion < 1.0nS (max)
consists of two banks of drivers, each with a 1:5 fanout and
ƒ
Very low CMOS power levels
its own output enable control. The device has a "heartbeat"
ƒ
TTL compatible inputs and outputs
monitor for diagnostics and PLL driving. The MON output is
ƒ
Inputs can be driven from 3.3V or 5V components
identical to all other outputs and complies with the output
ƒ
Two independent output banks with 3-state control
specifications in this document. The ASM2P3805AH offers
ƒ
1:5 fanout per bank
low capacitance inputs.
ƒ
"Heartbeat" monitor output
ƒ
VCC = 3.3V ± 0.3V
The ASM2P3805AH is designed for high speed clock
ƒ
Available in SSOP, SOIC and QSOP Packages
distribution where signal quality and skew are critical. The
ASM2P3805AH
also
allows
single
point-to-point
transmission line driving in applications such as address
distribution, where one signal must be distributed to
multiple receivers with low skew and high signal quality.
Block Diagram
Pin Diagram
OEA
INA
INB
5
5
OA1 – OA5
OB1 – OB5
OEB
MON
VCCA
1
OA1
2
OA2
3
OA3
4
GNDA
5
OA4
6
OA5
7
GNDQ
8
OEA
INA
20
VCCB
19
OB1
18
OB2
17
OB3
16
GNDB
15
OB4
14
OB5
13
MON
9
12
OEB
10
11
INB
A
S
M
2
3
8
0
5
A
H
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.
ASM2P3805AH
June 2005
rev 0.2
Pin Description
Pin #
Pin Names
9,12
¯¯ B
OE
¯¯ A, OE
10,11
INA, INB
Clock Inputs
2,3,4,6,7
OA1-OA5
Clock Outputs
19,18,17,15,14
OB1-OB5
Clock Outputs
1
VCCA
Power supply for Bank A
20
VCCB
Power supply for Bank B
5
GNDA
Ground for Bank A
16
GNDB
Ground for Bank B
8
GNDQ
Ground
13
MON
Monitor Output
Description
3-State Output Enable Inputs (Active LOW)
Function Table
Inputs
Outputs
OE
¯¯ A, OE
¯¯ B
INA, INB
OAn, OBn
MON
L
L
L
L
L
H
H
H
H
L
Z
L
H
H
Z
H
Note: H = HIGH; L = LOW; Z = High-Impedance
Capacitance (TA = +25°C, f = 1.0MHz)
Symbol
Parameter1
Conditions
Typ
Max
Unit
CIN
Input Capacitance
VIN= 0V
4.5
6
pF
COUT
Output Capacitance
VOUT = 0V
5.5
8
pF
Note: 1 This parameter is measured at characterization but not tested.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
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ASM2P3805AH
June 2005
rev 0.2
Absolute Maximum Ratings1
Symbol
Description
VTERM2
VTERM3
VTERM4
Max
Unit
Terminal Voltage with Respect to GND
-0.5 to +4.6
V
Terminal Voltage with Respect to GND
-0.5 to +7
V
Terminal Voltage with Respect to GND
-0.5 to VCC+0.5
V
IOUT
DC Output Current
-60 to +60
mA
TSTG
Storage Temperature
-65 to +150
°C
TJ
Junction Temperature
150
°C
Ts
Max. Soldering Temperature (10 sec)
260
°C
2
KV
TDV
Static Discharge Voltage
(As per JEDEC STD 22- A114-B)
Note: 1 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.
2. VCC terminals.
3. Input terminals.
4. Outputs and I/O terminals.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
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ASM2P3805AH
June 2005
rev 0.2
DC Electrical Characteristics over Operating Range
Following Conditions Apply Unless Otherwise Specified
Commercial: TA = 0°C to +70°C, VCC = 3.3V ± 0.3V; Industrial: TA = -40 0°C to +85°C, VCC = 3.3V ± 0.3V
Symbol
VIH
Test Conditions1
Min
Typ2
Max
2
-
5.5
2
-
VCC+ 0.5
-0.5
-
0.8
VI = 5.5V
-
-
±1
Input HIGH Current (I/O pins)
VI = VCC
-
-
±1
Input LOW Current (Input pins)
VI = GND
-
-
±1
Input LOW Current (I/O pins)
VI = GND
-
-
±1
High Impedance Output Current
VCC= Max.
(3-State Output Pins)
VO = VCC
-
-
±1
VO = GND
-
-
±1
Parameter
Input HIGH Level (Input pins)
Guaranteed Logic HIGH Level
Input HIGH Level (I/O pins)
VIL
IIH
IIL
IOZH
IOZL
Input LOW Level
(Input and I/O pins)
Guaranteed Logic LOW Level
Input HIGH Current (Input pins)
VCC= Max.
VCC= Max.
Unit
V
V
µA
µA
VIK
Clamp Diode Voltage
VCC= Min., IIN = -18mA
-
-0.7
-1.2
V
IODH
Output HIGH Current
VCC= 3.3V, VIN = VIH or
3
VIL, VO = 1.5V
-36
-60
-110
mA
IODL
Output LOW Current
VCC= 3.3V, VIN = VIH or
3
VIL, VO = 1.5V
50
90
200
mA
VOH
Output HIGH Voltage
VCC= Min.
VIN = VIH or VIL
VCC–0.2
-
-
IOH= -8mA
2.45
3
-
IOL= 0.1mA
-
-
0.2
IOL= 16mA
-
0.2
0.4
IOL= 24mA
-
0.3
0.5
-
-
±1
µA
-60
-135
-240
mA
VOL
IOFF
VCC= Min.
VIN = VIH or VIL
Output LOW Voltage
Input Power Off Leakage
4
IOH= -0.1mA
VCC= 0V, VIN = 4.5V
3
V
V
IOS
Short Circuit Current
VCC= Max., VO = GND
VH
Input Hysteresis
-
-
150
-
mV
ICCL
ICCH
ICCZ
Quiescent Power Supply
Current
VCC= Max.
VIN = GND or VCC
-
0.1
10
µA
Notes:1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. VOH = VCC - 0.6V at rated current.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
4 of 13
ASM2P3805AH
June 2005
rev 0.2
Power Supply Characteristics
Symbol
Parameter
Test Conditions1
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC= Max. VIN = VCC –0.6V
ICCD
Dynamic Power Supply Current
4
3
VCC= Max.
Outputs Open
OE
¯¯ A = OE
¯¯ B= GND
Per Output Toggling
50% Duty Cycle
VIN= VCC
VIN= GND
VIN= VCC
VCC= Max.
VIN= GND
Outputs Open
fO= 25MHz
50% Duty Cycle
OE
¯¯ A = OE
¯¯ B= VCC
VIN= VCC-0.6V
Mon. Output Toggling
VIN= GND
IC
Total Power Supply Current
Min
Typ2
Max
Unit
-
10
30
µA
-
0.035
0.06
mA/
MHz
-
0.9
1.6
-
0.9
1.6
6
mA
VCC= Max.
Outputs Open
fO= 50MHz
50% Duty Cycle
OEA = OEB= GND
Eleven Outputs
Toggling
VIN= VCC
VIN= GND
-
20
33
VIN= VCC-0.6V
VIN= GND
-
20
33
5
5
Notes:
1. For conditions shown as Max or Min, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (VIN = VCC -0.6V); all other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
5. Values for these conditions are examples of the IC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fONO)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆ICC = Power Supply Current for a TTL High Input (VIN = VCC -0.6V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fO = Output Frequency
NO = Number of Outputs at fO
All currents are in milliamps and all frequencies are in megahertz.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
5 of 13
ASM2P3805AH
June 2005
rev 0.2
Switching Characteristics Over Operating Range – Commercial3,4
Symbol
Conditions1
Parameter
ASM2P3805A
ASM2P3805AH
Unit
Min
Max
Min2
Max
1.5
5.8
1.5
5
nS
Output Rise Time (0.8V to 2.0V)
-
2
-
2
nS
Output Fall Time (2.0V to 0.8V)
-
2
-
2
nS
tSK(O)
Output skew: skew between outputs of all
banks of same package
(inputs tied together)
-
0.5
-
0.5
nS
tSK(P)
Pulse skew: skew between opposite
transitions of same output (|tPHL -– tPLH|)
-
1
-
1
nS
tSK(T)
Package skew: skew between outputs of
different packages at same power supply
voltage, temperature, package type and
speed grade
-
1.5
-
1.2
nS
tPZL
tPZH
Output Enable Time
OE
¯¯ A to OAn, OE
¯¯ B to OBn
1.5
6.5
1.5
6
nS
tPLZ
tPHZ
Output Disable Time
OE
¯¯ A to OAn, OE
¯¯ B to OBn
1.5
5.5
1.5
5
nS
tPLH
tPHL
tR
tF
2
Propagation Delay
INA to OAn, INB to OBn
CL= 50pF
RL= 500Ω
Switching Characteristics Over Operating Range – Industrial3,4
Symbol
tPLH
tPHL
Conditions1
Parameter
Propagation Delay
INA to OAn, INB to OBn
ASM2P3805A
2
ASM2P3805AH
Unit
Min
Max
Min2
Max
1.5
5.8
1.5
5.2
nS
tR
Output Rise Time (0.8V to 2.0V)
-
2
-
2
nS
tF
Output Fall Time (2.0V to 0.8V)
-
2
-
2
nS
tSK(O)
Output skew: skew between outputs of all
banks of same package (inputs tied
together)
-
0.6
-
0.6
nS
tSK(P)
Pulse skew: skew between opposite
transitions of same output (|tPHL -– tPLH|)
-
1
-
1
nS
tSK(T)
Package skew: skew between outputs of
different packages at same power supply
voltage, temperature, package type and
speed grade
-
1.5
-
1.2
nS
tPZL
tPZH
Output Enable Time
OE
¯¯ A to OAn, OE
¯¯ B to OBn
1.5
6.5
1.5
6
nS
tPLZ
tPHZ
Output Disable Time
OE
¯¯ A to OAn, OE
¯¯ B to OBn
1.5
5.5
1.5
5
nS
CL= 50pF
RL= 500Ω
Note: 1. See test circuits and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested.
4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay
limits do not imply skew.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
6 of 13
ASM2P3805AH
June 2005
rev 0.2
Test Circuits and Waveforms
Switch Position
Test
Switch
Disable Low
Enable Low
6V
Disable High
Enable High
GND
Definitions:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
7 of 13
ASM2P3805AH
June 2005
rev 0.2
Package Information
20-lead SSOP ( 150 mil ) Package
Dimensions
Symbol
Inches
Min
Max
Millimeters
Min
Max
A
0.053
0.069
1.346
1.753
A1
0.004
0.010
0.102
0.254
A2
….
0.059
….
1.499
D
0.337
0.344
8.560
8.738
c
0.007
0.012
0.178
0.274
E
0.228
0.244
5.791
6.198
E1
0.150
0.157
3.810
3.988
L
0.016
0.035
0.406
0.890
L1
0.010 BASIC
0.254 BASIC
b
0.203
0.325
0.008
0.014
R1
0.003
….
0.08
…..
a
0°
8°
0°
8°
e
0.025 BASIC
0.635 BASIC
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
8 of 13
ASM2P3805AH
June 2005
rev 0.2
20-lead QSOP Package
Symbol
Dimensions
Inches
Millimeters
Min
Max
Min
Max
A
0.060
0.068
1.52
1.73
A1
0.004
0.008
0.10
0.20
b
0.009
0.012
0.23
0.30
c
0.007
0.010
0.18
0.25
D
0.337
0.344
8.56
8.74
E
0.150
0.157
3.81
3.99
e
0.025 BSC
0.64 BSC
H
0.230
0.244
5.84
6.20
h
0.010
0.016
0.25
0.41
L
0.016
0.035
0.41
0.89
S
0.056
0.060
1.42
1.52
a
0°
8°
0°
8°
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
9 of 13
ASM2P3805AH
June 2005
rev 0.2
20L SOIC Package (300 mil)
Dimensions
Symbol
Inches
Min
Max
Millimeters
Min
Max
A
0.093
0.104
2.35
2.65
A1
0.004
0.012
0.10
0.30
A2
0.088
0.094
2.25
2.40
D
0.496
0.512
12.60
13.00
L
0.016
0.050
0.40
1.27
E1
0.291
0.299
7.40
7.60
R1
0.003
….
0.08
…..
b
0.013
0.022
0.33
0.56
c
0.009
0.015
0.23
0.38
E
0.394
0.419
10.00
10.65
e
a
0.050 BSC
0°
1.27 BSC
8°
0°
8°
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
10 of 13
ASM2P3805AH
June 2005
rev 0.2
Ordering Information
Part Number
Marking
Package Type
Temperature
ASM2P3805AHG-20-AR
2P3805AHG
20-Pin SSOP, TAPE & REEL, Green
Commercial
ASM2P3805AHG-20-AT
2P3805AHG
20-Pin SSOP, TUBE, Green
Commercial
ASM2P3805AHG-20-DR
2P3805AHG
20-Pin QSOP, TAPE & REEL, Green
Commercial
ASM2P3805AHG-20-DT
2P3805AHG
20-Pin QSOP, TUBE, Green
Commercial
ASM2P3805AHG-20-SR
2P3805AHG
20-Pin SOIC, TAPE & REEL, Green
Commercial
ASM2P3805AHG-20-ST
2P3805AHG
20-Pin SOIC, TUBE, Green
Commercial
ASM2I3805AHG-20-AR
2I3805AHG
20-Pin SSOP, TAPE & REEL, Green
ASM2I3805AHG-20-AT
2I3805AHG
20-Pin SSOP, TUBE, Green
Industrial
Industrial
ASM2I3805AHG-20-DR
2I3805AHG
20-Pin QSOP, TAPE & REEL, Green
Industrial
ASM2I3805AHG-20-DT
2I3805AHG
20-Pin QSOP, TUBE, Green
Industrial
ASM2I3805AHG-20-SR
2I3805AHG
20-Pin SOIC, TAPE & REEL, Green
Industrial
ASM2I3805AHG-20-ST
2I3805AHG
20-Pin SOIC, TUBE, Green
Industrial
ASM2P3805AG-20-AR
2P3805AG
20-Pin SSOP, TAPE & REEL, Green
Commercial
ASM2P3805AG-20-AT
2P3805AG
20-Pin SSOP, TUBE, Green
Commercial
ASM2P3805AG-20-DR
2P3805AG
20-Pin QSOP, TAPE & REEL, Green
Commercial
ASM2P3805AG-20-DT
2P3805AG
20-Pin QSOP, TUBE, Green
Commercial
ASM2P3805AG-20-SR
2P3805AG
20-Pin SOIC, TAPE & REEL, Green
Commercial
ASM2P3805AG-20-ST
2P3805AG
20-Pin SOIC, TUBE, Green
Commercial
ASM2I3805AG-20-AR
2I3805AG
20-Pin SSOP, TAPE & REEL, Green
ASM2I3805AG-20-AT
2I3805AG
20-Pin SSOP, TUBE, Green
Industrial
Industrial
ASM2I3805AG-20-DR
2I3805AG
20-Pin QSOP, TAPE & REEL, Green
Industrial
ASM2I3805AG-20-DT
2I3805AG
20-Pin QSOP, TUBE, Green
Industrial
ASM2I3805AG-20-SR
2I3805AG
20-Pin SOIC, TAPE & REEL, Green
Industrial
ASM2I3805AG-20-ST
2I3805AG
20-Pin SOIC, TUBE, Green
Industrial
3.3V CMOS Buffer Clock Driver
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Notice: The information in this document is subject to change without notice.
ASM2P3805AH
June 2005
rev 0.2
Device Ordering Information
A S M 2 P 3 8 0 5 A H G - 2 0 - D R
R = Tape & reel, T = Tube or Tray
O = SOT
S = SOIC
T = TSSOP
A = SSOP
V = TVSOP
B = BGA
Q = QFN
U = MSOP
E = TQFP
L = LQFP
U = MSOP
P = PDIP
D = QSOP
X = SC-70
DEVICE PIN COUNT
F = LEAD FREE AND RoHS COMPLIANT PART
G = GREEN PACKAGE
PART NUMBER
X= Automotive
I= Industrial
P or n/c = Commercial
(-40C to +125C) (-40C to +85C)
(0C to +70C)
1 = Reserved
2 = Non PLL based
3 = EMI Reduction
4 = DDR support products
5 = STD Zero Delay Buffer
6 = Power Management
7 = Power Management
8 = Power Management
9 = Hi Performance
0 = Reserved
ALLIANCE SEMICONDUCTOR MIXED SIGNAL PRODUCT
Licensed under US patent #5,488,627, #6,646,463 and #5,631,920.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
12 of 13
ASM2P3805AH
June 2005
rev 0.2
Alliance Semiconductor Corporation
2575, Augustine Drive,
Santa Clara, CA 95054
Tel# 408-855-4900
Fax: 408-855-4999
www.alsc.com
Copyright © Alliance Semiconductor
All Rights Reserved
Part Number: ASM2P3805AH
Document Version: 0.2
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
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components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant
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assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.
3.3V CMOS Buffer Clock Driver
Notice: The information in this document is subject to change without notice.
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