ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER GENERAL DESCRIPTION FEATURES • 16 LVCMOS outputs The ICS8343 is a low skew, 1-to-16 Fanout Buffer and a member of the HiPerClockS HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS8343 is at 3.3V, 2.5V and mixed 3.3V input and 2.5V supply modes over the commercial temperature range. Guaranteed output and part-to-part skew characteristics make the ICS8343 ideal for those clock distribution applications demanding well defined performance and repeatability. ,&6 • Output frequency up to 200MHz • 250ps output skew • 700ps part to part • CMOS compatible clock input at 5V, LVTTL and LVCMOS compatible at 3.3V and 2.5V • LVTTL output enable inputs • Dual output enable inputs facilitates 1-to-16 or 1-to-8 input to output modes • 3.3V, 2.5V or mixed 3.3V, 2.5V from 0°C to 70°C ambient operating temperature • 32 lead low-profile QFP(LQFP), 7mm x 7mm x 1.4mm package body, 0.8mm package lead pitch BLOCK DIAGRAM VDD1 PIN A SSIGNMENT VDD VDD2 Q13 Q14 Q15 OE2 OE1 Q0 Q1 Q2 CLK 32 31 30 29 28 27 26 25 Q0 Q15 VDD1 1 24 VDD2 Q1 Q14 VDD1 2 23 VDD2 Q2 Q13 VDD1 3 22 VDD2 Q3 Q12 Q3 4 21 Q12 Q4 5 20 Q11 GND 6 19 GND ICS8343 Q4 Q11 Q5 Q10 GND 7 18 GND Q6 Q9 GND 8 17 GND Q7 Q8 9 10 11 12 13 14 15 16 Q10 Q9 Q8 VDD CLK OE2 Q7 GND Q6 Q5 OE1 32-Lead LQFP (Top View) 8343 www.icst.com 1 REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER TABLE 1. PIN DESCRIPTIONS Number Name Ty pe Description 1, 2, 3 VDD1 Pow er Output Q0 thru Q7 pow er supply. Connect to 5V, 3.3V or 2.5V. 4, 5 Q3, Q4 Output Clock outputs. 14Ω typical output impedance. 6, 7, 8 GND Pow er Connect to ground. 9, 10, 11 Q5, Q6, Q7 Output Clock outputs. 14Ω typical output impedance. 12 CLK Input 13 VDD Pow er Input pow er supply. Connect to 5V, 3.3V or 2.5V Clock input. 14, 15, 16 Q8, Q9, Q10 Output Clock outputs. 14Ω typical output impedance. 17, 18, 19 GND Pow er Connect to ground. 20, 21 Q11, Q12 Output Clock outputs. 14Ω typical output impedance. 22, 23, 24 VDD2 Pow er Output Q8 thru Q15 pow er supply. Connect to 5V, 3.3V or 2.5V. 25, 26, 27 Q13, Q14, Q15 Output 28 OE2 Input Pullup Output enable. When low forces outputs Q8 thru Q15 to HiZ state. 29 OE1 Input Pullup Output enable. When low forces outputs Q0 thru Q7 to HiZ state. 30, 31, 32 Q0, Q1, Q2 Output Clock outputs. 14Ω typical output impedance. Clock outputs. 14Ω typical output impedance. TABLE 2. PIN CHARACTERISTICS Sy mbol Parameter CIN Input Capacitance Test Conditions CPD Pow er Dissipation Capacitance (per output) Minimum Ty pical Maximum Units pF VDD1, VDD2 = 5.25V 15 pF VDD1, VDD2 = 3.47V 11 pF VDD1, VDD2 = 2.63V 9.5 pF TABLE 3. FUNCTION TABLE Inputs 8343 2 Outputs OE1 OE2 Q0 thru Q7 Q8 thru Q15 0 1 0 Hi Z Hi Z 0 Active Hi Z 0 1 Hi Z Active 1 1 Active Active www.icst.com REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER ABSOLUTE MAXIMUM RATINGS Supply Voltage Inputs Outputs Ambient Operating Temperature Storage Temperature 7V -0.5V to VDD+0.5 V -0.5V to VDD+0.5V 0°C to 70°C -65°C to 150°C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only and functional operation of the device at these or any conditions beyond those listed in the DC Electrical Characteristics or AC Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. TABLE 4A. DC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 3.3V±5%, TA = 0° TO 70°C Sy mbol Parameter VDD, VDD1, VDD2 Operating Supply Voltage VIH Input High Voltage VIL IIH IIL IDD Test Conditions Minimum Ty pical Maximum Units 3.135 3.3 3.465 V CLK VDD = 3.465V 2 VDD + 0.3 V OEx VDD = 3.465V 2 VDD + 0.3 V Input Low Voltage CLK VDD = 3.135V -0.3 0.8 V OEx VDD = 3.135V -0.3 0.8 V Input High Current CLK VIN = VDD 1 µA OEx VIN = VDD 1 µA Input Low Current CLK VIN = 0V -15 µA OEx VIN = 0V -15 µA Input Operating Supply Current 100 µA VOH Output High Voltage VDD = 3.135V, IOH = -25mA VOL Output Low Voltage VDD = 3.135V, IOL = 25mA 2.4 0.8 V V IOZH High Impedance Leakage Current OEx = 0V, VOUT = VDD 1 µA IOZL High Impedance Leakage Current OEx = 0V, VOUT = 0V -1 µA TABLE 5A. AC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 3.3V±5%, TA = 0° TO 70°C Sy mbol Parameter Test Conditions Minimum Ty pical Maximum Units fMAX Maximum Input Frequency 200 MHz tpLH Propagation Delay, Low -to-High 0 < f ≤ 200MHz 1.1 2.1 3.1 ns tpHL Propagation Delay, High-to-Low 0 < f ≤ 200MHz 1.2 2.0 2.7 ns tsk(o) Output Skew ; NOTE 3 Measured on rising edge @VDDx/2 250 ps tsk(p) Process Skew ; NOTE 4 Measured on rising edge @VDDx/2 450 ps Measured on rising edge @VDDx/2 700 ps tsk(pp) Part-to-Part Skew ; NOTE 5 tR Output Rise Time 0.5 0.8 ns tF Output Fall Time 0.9 ns tPW Output Pulse Width 1.7 tCY CLE/2 + 0.5 NOTE 1: NOTE 2: NOTE 3: NOTE 4: NOTE 5: 8343 tCY CLE/2 - 0.5 tCY CLE/2 ns All parameters measured at fMAX unless noted otherw ise. Outputs terminated w ith 50Ω resistor connected to VDDx/2. Defined as skew across outputs at the same supply voltages and w ith equal load conditions. Defined as skew at the same output on different devices operating at the same supply voltages and w ith equal load conditions. Defined as skew at different outputs on different devices operating at the same supply voltages and w ith equal load conditions. www.icst.com 3 REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER TABLE 4B. DC ELECTRICAL CHARACTERISTICS, VDD = 3.3V±5%, VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C Sy mbol Parameter Minimum Ty pical Maximum Units VDD Input Operating Supply Voltage Test Conditions 3.135 3.3 3.465 V VDD1, VDD2 Output Operating Supply Voltage 2.375 2.5 2.625 VIH Input High Voltage CLK VDD = 3.465 2 VDD + 0.3 V OEx VDD = 3.465 2 VDD + 0.3 V V VIL Input Low Voltage CLK VDD = 3.135 -0.3 0.8 OEx VDD = 3.135 -0.3 0.8 V IIH Input High Current CLK VIN = VDD 1 µA OEx VIN = VDD 1 µA IIL IDD Input Low Current CLK VIN = 0V -15 µA OEx VIN = 0V -15 µA Input Operating Supply Current 100 µA VOH Output High Voltage VDD = 2.375V, IOH = -25mA VOL Output Low Voltage VDD = 2.375V, IOL = 25mA 1.5 0.8 V V IOZH High Impedance Leakage Current OEx = 0V, VOUT = VDD 1 µA IOZL High Impedance Leakage Current OEx = 0V, VOUT = 0V -1 µA TABLE 5B. AC ELECTRICAL CHARACTERISTICS, VDD = 3.3V±5%, VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C Sy mbol Parameter fMAX Maximum Input Frequency tpLH Propagation Delay, Low -to-High 0 < f ≤ 200MHz 1.0 tpHL Propagation Delay, High-to-Low 0< f ≤ 200MHz 1.4 Minimum Ty pical Maximum Units 200 MHz 2.3 3.2 ns 2.3 3.2 ns tsk(o) Output Skew ; NOTE 3 Measured on rising edge @VDDx/2 250 ps tsk(p) Process Skew ; NOTE 4 Measured on rising edge @VDDx/2 450 ps tsk(pp) Part-to-Part Skew ; NOTE 5 Measured on rising edge @VDDx/2 700 ps tR Output Rise Time 0.5 0.8 ns tF Output Fall Time 0.9 ns tPW Output Pulse Width 1.7 tCY CLE/2 + 0.5 NOTE 1: NOTE 2: NOTE 3: NOTE 4: NOTE 5: 8343 4 Test Conditions tCY CLE/2 - 0.5 tCY CLE/2 ns All parameters measured at fMAX unless noted otherw ise. Outputs terminated w ith 50Ω resistor connected to VDDx/2. Defined as skew across outputs at the same supply voltages and w ith equal load conditions. Defined as skew at the same output on different devices operating at the same supply voltages and w ith equal load conditions. Defined as skew at different outputs on different devices operating at the same supply voltages and w ith equal load conditions. www.icst.com REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER TABLE 4C. DC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C Sy mbol Parameter VDD, VDD1, VDD2 Operating Supply Voltage VIH Input High Voltage CLK OEx VIL Input Low Voltage CLK OEx VDD = 2.375 IIH Input High Current Test Conditions Minimum Ty pical Maximum 2.375 2.5 2.625 V 2 VDD + 0.3 V VDD = 2.625 2 VDD + 0.3 V VDD = 2.375 -0.3 0.7 V -0.3 0.8 V VDD = 2.625 Units CLK VIN = VDD 1 µA OEx VIN = VDD 1 µA CLK VIN = 0V -10 OEx VIN = 0V -10 IIL Input Low Current IDD Input Operating Supply Current VOH Output High Voltage VDD = 2.375V, IOH = -25mA µA µA 100 µA 1.5 V VOL Output Low Voltage VDD = 2.375V, IOL = 25mA 0.8 V IOZH High Impedance Leakage Current OEx = 0V, VOUT = VDD 1 µA IOZL High Impedance Leakage Current OEx = 0V, VOUT = 0V -1 µA TABLE 5C. AC ELECTRICAL CHARACTERISTICS, VDD = VDD1 = VDD2 = 2.5V±5%, TA = 0° TO 70°C Sy mbol Parameter fMAX Maximum Input Frequency Test Conditions Minimum tpLH Propagation Delay, Low -to-High 0 < f ≤ 200MHz 1.0 tpHL Propagation Delay, High-to-Low 0< f ≤ 200MHz 1.4 Ty pical Maximum Units 133 MHz 2.5 3.7 ns 2.6 3.5 ns tsk(o) Output Skew ; NOTE 3 Measured on rising edge @VDDx/2 250 ps tsk(p) Process Skew ; NOTE 4 Measured on rising edge @VDDx/2 500 ps tsk(pp) Part-to-Part Skew ; NOTE 5 Measured on rising edge @VDDx/2 750 ps tR Output Rise Time 0.5 0.8 ns tF Output Fall Time 0.9 ns tPW Output Pulse Width 1.7 tCY CLE/2 + 0.75 NOTE 1: NOTE 2: NOTE 3: NOTE 4: NOTE 5: 8343 tCY CLE/2 - 0.75 tCY CLE/2 ns All parameters measured at fMAX unless noted otherw ise. Outputs terminated w ith 50Ω resistor connected to VDDx/2. Defined as skew across outputs at the same supply voltages and w ith equal load conditions. Defined as skew at the same output on different devices operating at the same supply voltages and w ith equal load conditions. Defined as skew at different outputs on different devices operating at the same supply voltages and w ith equal load conditions. www.icst.com 5 REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER PACKAGE OUTLINE & DIMENSIONS e/2 NOTE 4 D NOTE 5, 7 D1 D/2 NOTE 3 -D- -A, B, OR -D- D1/2 b NOTE 3 -A- NOTE 3 -B- E1 e N O T E 4 E/2 N/4 TIPS 0.20 C A-B D 4X E N O T E 5, 7 E1/2 SEE DETAIL “A” 8 PLACES 11 / 13° A -H- NOTE 2 / / 0.10 C ccc -CSEE DETAIL “B” NOTE 9 0.09 / 0.20 S Y M B O L ddd M C A-B S D S WITH LEAD FINISH b -A, B, OR -D- NOTES: 1. ALL DIMENSIONS AND TOLERANCING CONFORM TO ANSI Y14.5-1982 2. DATUM PLANE -H- LOCATED AT MOLD PARTING LINE AND COINCIDENT WITH LEAD, WHERE LEAD EXITS PLASTIC BODY AT BOTTOM OF PARTING LINE. 3. DATUMS A-B AND -D- TO BE DETERMINED AT CENTERLINE BETWEEN LEADS WHERE LEADS EXIT PLASTIC AT DATUM PLANE -H- . 4. TO BE DETERMINED AT SEATING PLACE -C- . 5. DIMENSIONS D1 AND E1 DO NOT INCLUDE MOLD PROTRUSION. 6. N IS THE TOTAL NUMBER OF TERMINALS. 7. THESE DIMENSIONS TO BE DETEREMINED AT DATUM PLANE -H-. 8. PACKAGE TOP DIMENSIONS ARE SMALLER THAN BOTTOM DIMENSIONS AND TOP OF PACKAGE WILL NOT OVERHANG BOTTOM OF PACKAGE. 9. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08mm TOTAL IN EXCESS OF THE b DIMENSION AT MAXIMUM MATERIAL CONDITION. 10. CONTROLLING DIMENSION: MILLIMETER. 11. THIS OUTLINE CONFORMS TO JEDEC PUBLIBCATION 95 REGISTRATION MS-026, VARIATION BBA. 12. A1 IS DEFINED AS THE DISTANCE FROM THE SEATING PLANE TO THE LOWEST POINT OF THE PACKAGE. 0.09 / 0.16 JEDEC VARIAT ION ALL DIMENSIONS IN MILLIMET ERS BBA MIN NOM A b1 BASE MET AL 0° MIN. - 0.05 S A2 A1 0.08/0.20 R. DATUM PLANE -H- 0.25 GAUGE PLANE 0.08 R. MIN. 0.20 MIN. 0° - 7 ° L 1.00 REF. 8343 6 www.icst.com N O T E MAX 1.60 A1 0.05 A2 1.35 0.15 1.4 12 1.45 D 9.00 BSC. 4 D1 7.00 BSC. 7, 8 E 9.00 BSC. 4 E1 7.00 BSC. 7, 8 L 0.45 0.60 N 32 e 0.80 BSC. 0.75 b 0.30 0.37 0.45 b1 0.30 0.35 0.40 ccc 0.10 ddd 0.20 9 REV. C, 07072000 ICS8343 Integrated Circuit Systems, Inc. LOW SKEW 1-TO-16 FANOUT BUFFER ORDERING INFORMATION Part/Order Number Marking Package Count Temperature ICS8343Y ICS8343Y 32 Lead LQFP 250 per tray 0°C to 70°C ICS8343Y T ICS8343Y 32 Lead LQFP on Tape and Reel 2000 0°C to 70°C While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use or for 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 critical medical instruments. 8343 www.icst.com 7 REV. C, 07072000