Document
November 2006 rev 0.3
3.3V CMOS 1-TO-10 CLOCK DRIVER
ASM2P3807A
Features
• 0.5 MICRON CMOS Technology • Guaranteed low skew < 350pS (max.) • Very low duty cycle distortion < 350pS (max.) • High speed: propagation delay < 3nS (max.) • Very low CMOS power levels • TTL compatible inputs and outputs • 1:10 fanout • Maximum output rise and fall time < 1.5nS (max.) • Low input capacitance: 4.5pF typical • Operates with 3.3V ± 0.3V Supply • Inputs can be driven from 3.3V or 5V components • Available in SSOP, SOIC, and QSOP Packages
Block Diagram
Product Description
The ASM2P3807A 3.3V clock driver is built using advanced dual metal CMOS technology. This low skew clock driver offers 1:10 fanout. The large fanout from a single input reduces loading on the preceding driver and provides an efficient clock distribution network. The ASM2P3807A offers low capacitance inputs with hysteresis for improved noise margins. Multiple power and grounds reduce noise. Typical applications are clock and signal distribution.
O1 O2 O3
O4 O5 IN O6 O7
O8 O9
O10
PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200, Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018
www.pulsecoresemi.com
Notice: The information in this document is subject to change without notice.
November 2006 rev 0.3 Pin Configuration
Pin Description Pin#
1 3,5,7,9,11,12,14,16,18,19
2,6,10,13,17 4,8,15,20
ASM2P3807A
IN GND
O1 VCC
O2
GND O3 VCC O4
GND
1 20
2 19
3 A 18 S
4 M 17 5 2 16
P 6 3 15 7 8 14
0 8 7 13 9 A 12
10 11
SOIC / SSOP/ QSOP Packages TOP VIEW
VCC O10 O9 GND
O8 VCC O7 GND O6 O5
Pin Names
IN O 1-O10
GND Vcc
Description
Clock Inputs Clock Outputs
Ground Power
Absolute Maximum Ratings
Symbol
VTERM1 VTERM2 VTERM3
Description
Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND
Max
-0.5 to +4.6 -0.5 to +7 -0.5 to VCC+0.5
Unit
V V V
TSTG
Storage Temperature
-65 to +150
°C
IOUT
DC Output Current
-60 to +60
mA
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.
NOTES: 1. VCC terminals. 2. Input terminals. 3. Outputs and I/O terminals.
3.3V CMOS 1-TO-10 CLOCK DRIVER
Notice: The information in this document is subject to change without notice.
2 of 18
November 2006
rev 0.3 Capacitance (TA = +25°C, f = 1.0MHz)
Symbol
CIN COUT
Parameter1
Input Capacitance Output Capacitance
Conditions
VIN= 0V VOUT = 0V
Note:1. This parameter is measured at characterization but not tested.
ASM2P3807A
Typ Max Unit
4.5 6 pF 5.5 8 pF
Power Supply Characteristics
Symbol
∆ICC
Parameter
Quiescent Power Supply Current TTL Inputs HIGH
ICCD
Dynamic Power Supply Current4
Test Conditions1
VCC= Max. VIN = VCC –0.6V3
VCC= Max. Input toggling 50% Duty Cycle Outputs Open
VIN = VCC VIN = GND
Min
Typ2
10
0.31
Max
30
0.45
Unit
µA
mA/ MHz
VCC= Max.
Input toggling
IC
Total Power Supply Current6
50% Duty Cycle Outputs Open
VIN = VCC VIN = GND
fi = 50MHz
15.5
22.85
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 (fi) 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) fi = Input Frequency
All currents are in milliamps and all frequencies are in megahertz.
mA
3.3V CMOS 1-TO-10 CLOCK DRIVER
Notice: The information in this document is subject to change without notice.
3 of 18
November 2006
rev 0.3
DC Electrical Characteristics over Operating Range
Following Conditions Apply Unless Otherwise Specified Commercial: TA = 0°C to +70°C, Industrial: TA = -40°C to +85°C, VCC = 3.3V ± 0.3V
ASM2P3807A
Symbol Parameter
Test Conditions1
Min Typ
Input HIGH Level (Input pins) VIH
Input HIGH Level (I/O pins)
Guaranteed Logic HIGH Level
2 2
Input LOW Level VIL (Input and I/O pins)
Guaranteed Logic LOW Level
-0.5
IIH Input HIGH Current (Input pins) VCC= Max Input HIGH Current (I/O pins)
IIL Input LOW Current (Input pins) VCC= Max Input LOW Current (I/O pins)
IOZH High Impedence Output Current VCC= Max
VI = 5.5V VI = VCC VI = GND VI = GND VO = VCC
IOZL (3-State Output Pins)
VO = GND
VIK Clamp Diode Voltage
VCC= Min., IIN = –18mA
-0.7
IODH Output HIGH Current IODL Output LOW Current
VCC= 3.3V, VIN = VIH or VIL, VO = 1.5V3
VCC= 3.3V, VIN = VIH or VIL, VO = 1.5V3
-36.