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PI49FCT805T PI49FCT2805T PI49FCT806T
Fast CMOS Buffer/Clock Driver
Product Features
Extremely low output skew: 0.5ns Monitor output pin Clock busing with Hi-Z state control TTL input and CMOS output compatible Extremely low static power (1mW, typ.) Hysteresis on all inputs Packages available: 20-pin 209 mil wide SSOP (H) 20-pin 300 mil wide SOIC (S) 20-pin 150 mil wide QSOP (Q) Device models available on request Industrial Operation at -40C to +85C
Product Description
Pericom Semiconductors PI49FCT series of logic circuits are produced using the Companys advanced 0.8 micron CMOS technology, achieving industry leading speed grades. The PI49FCT805T and PI49FCT2805T are non-inverting clock drivers. The PI49FCT806T is an inverting clock driver designed with two independent groups of buffers that have Hi-Z state Output Enable inputs (active LOW) with a 1-in, 5-out configuration per group. Each clock driver consists of two banks of drivers, driving five outputs each from a standard TTL-compatible CMOS input. The PI49FCT2805T also features a 25-ohm on-chip resistor for lower noise.
PI49FCT805T/2805T Logic Block Diagram
OEA 5 INA OA0-4
PI49FCT806T Logic Block Diagram
OEA 5 INA OA0-4
5 INB OEB OB0-4
INB OEB
5 OB0-4
MON
MON
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
Product Pin Description
Pin N ame O EA, O EB IN A, IN B O AN, O BN O AN, O BN MO N GN D VCC C lock Inputs C lock O utputs (PI49FC T805T/PI49FC T2805T) C lock O utput (PI49FC T806T) Monitor O utput Ground Power D e s cription Hi- Z State O utput Enable Inputs (Active LO W)
PI49FCT805T/2805T Truth Table(1)
Inputs OEA, OEB L L H H INA, INB L H L H Outputs OAN, OBN MON L L H H Z L Z H
PI49FCT806T Truth Table(1)
Inputs OEA, OEB L L H H INA, INB L H L H Outputs OAN, OBN MON H H L L Z H Z L
Note: 1. H= High Voltage Level L = Low Voltage Level Z = High Impedance
PI49FCT805T/2805T Product Pin Configuration
VccA OA0 OA1 OA2 GNDA OA3 OA4 GNDB OEA INA 1 20 2 19 3 18 4 20-Pin 17 5 H, Q, S 16 6 15 7 14 8 13 9 12 10 11 VccB OB0 OB1 OB2 GNDB OB3 OB4 MON OEB INB
PI49FCT806T Product Pin Configuration
VccA OA0 OA1 OA2 GNDA OA3 OA4 GNDB OEA INA 1 20 2 19 3 18 4 20-Pin 17 5 H, Q, S 16 6 15 7 14 8 13 9 12 10 11 VccB OB0 OB1 OB2 GNDB OB3 OB4 MON OEB INB
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................. 65C to +150C Ambient Temperature with Power Applied .............................. -40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) ....... 0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) .... 0.5V to +7.0V DC Input Voltage ..................................................................... 0.5V to +7.0V DC Output Current ............................................................................... 120mA Power Dissipation ................................................................................... 0.5W Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = 40C to +85C, VCC = 5.0V 5%)
Parameters Description VOH VOL VIH VIL IIH IIL IOZH IOZL II VIK IOS VH Output HIGH Voltage Output LOW Current Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Input HIGH Current Clamp Diode Voltage Short Circuit Current Input Hysteresis VCC = Max., VIN =VCC (Max.) VCC = Min., IIN = 18mA VCC = Max.(3), VOUT = GND VCC = 5 V 60 0.7 120 200 Test Conditions(1) VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = Max. VIN = VCC VIN = GND VOUT = VCC VOUT = GND IOH = 24.0mA IOL = 64mA IOL = 12mA (25) 2.0 0.8 1 1 1 1 20 1.2 225 Min. 2.4 Typ(2) 3.3 0.3 0.3 0.55 0.50 Max. Units V V V V V A A A A A V mA m V
Capacitance (TA = 25C, f = 1 MHz)
Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0 V VOUT = 0 V Typ 6 8 Max. 10 12 Units pF pF
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient and maximum loading. 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 determined by device characterization but is not production tested.
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
Power Supply Characteristics
Parameters Description ICC ICC ICCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max. VCC = Max., Outputs Open OEA = OEB = GND Per Output Toggling 50% Duty Cycle VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle OEA = OEB = GND Five Outputs Toggling VCC = Max., Outputs Open fI = 2.5 MHZ 50% Duty Cycle OEA = OEB = GND Eleven Outputs Toggling Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) VIN = VCC VIN = GND Min. Typ(2) 3 0.5 0.15 Max. 30 2.0 0.25 Units A mA mA/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND
7.7 8.0
14.0(5) 15.0(5)
mA
4.3
8.4(5)
4.8
10.4(5)
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V); 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 Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) 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) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz.
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
PI49FCT805/806T Switching Characteristics over Operating Range
805T/2805T/ 805AT/2805AT/ 805BT/2805BT/ 805CT/2805CT/ 806T 806AT 806BT 806CT Com. Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ tSKEW(o)(3) De s cription Propagation Delay INA to OAN, INB to OBN O utput Enable Time O EA to OAN, OEB to OBN Output Disable Time(4) OEA to OAN, OEB to OBN Skew twx two outputs of same package (same transition) Skew twx opposite transitions (tPHL- tPLH) of same output Skew twx two outputs of different package at same temperature (same transition) Conditions (1) M in. 1.5 M ax. 6.5 Com M in. 1.5 M ax. 5.8 Com. M in. 1.5 M ax. 5.0 Com M in. 1.5 M ax. 4.5 Units
1.5
8.0
1.5
8.0
1.5
8.5
1.5
6.2
1.5 CL = 50pF RL = 500
7.0
1.5
7.0
1.5
6.0
1.5
5.0 ns
0.7
0.5
0.4
0.4
tSKEW(p)(3)
1.0
0.7
0.5
0.5
tSKEW(t)(3)
1.5
1.0
1.0
1.0
Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew measured at worse cast temperature (max. temp). 4. This parameter is guaranteed but not production tested.
Tests Circuits For All Outputs(1)
VCC 7.0V
Switch Position
Test Open Drain Disable LOW Enable LOW All Other Inputs Switch Closed Open
500 VIN Pulse Generator RT D.U.T. 50pF CL 500 VOUT
Definitions: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
Switching Waveforms
Propagation Delay
3V Input 1.5V 0V tPLH tPHL VOH Output 1.5V
Output Skew tSK(o)
3V Input 1.5V 0V tPLHx tPHLx VOH Ox 1.5V VOL tSK(o)
VOL
tSK(o) VOH
Oy
1.5V VOL tPLHy tPHLy
Enable and Disable Times
Enable OE Disable 3V 1.5V 0V tPZL Output Normally Low 3.5V Switch Closed 1.5V 0.3V tPHZ 0.3V 1.5V 0V 0V VOH VOL tPLZ 3.5V
tSK(o) = | tPLHy tPLHx | or | tPHLy tPHLx |
Pulse Skew tSK(p)
3V Input 1.5V 0V tPLH tPHL VOH Output 1.5V VOL
tPZH Output Normally High
Switch Open
Package Skew tSK(t)
3V Input 1.5V 0V tPLH1 Package 1 Output tSK(t) Package 2 Output tPLH2 tPHL2 tSK(t) VOH 1.5V VOL tPHL1 VOH 1.5V VOL
tSK(p) = | tPHL tPLH |
tSK(t) = | tPLH2 tPLH1 | or | tPHL2 tPHL1 |
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
20-Pin 209-Mil SSOP (H)
20
.197 .220
5.00 5.60
1 .272 .295 6.90 7.50 .078 2.00 Max SEATING PLANE .002 Min 0.050
.004 .009
0.09 0.25
0.55 .022 0.95 .037 .291 .322 7.40 8.20
.0256 BSC 0.65
.0098 Max. 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
20-Pin 150-Mil QSOP (Q)
20
.008 0.20 MIN.
.150 .157
3.81 3.99
Guage Plane
.008 .013 0.20 0.33
.010 0.254
1 .337 8.56 .344 8.74
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.058 REF 1.47
.053 1.35 .069 1.75 SEATING PLANE
.015 x 45 0.38
Detail A
.007 .010 .016 .050 0.41 1.27
0.178 0.254
.025 BSC 0.635
.004 0.101 .010 0.254 .008 0.203 .012 0.305
.228 .244 5.79 6.19
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
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PI49FCT805T PI49FCT2805T/PI49FCT806T Fast CMOS Buffer/Clock Driver
20-Pin 300-Mil SOIC (S)
20
.2914 .2992
7.40 7.60 .010 .029 0.254 x 45 0.737
1 .496 12.60 .511 12.99 .0091 .0125 0.41 .016 1.27 .050 .0926 .1043 2.35 2.65 SEATING PLANE .394 .419 10.00 10.65 0.23 0.32
0-8
.020 0.508 REF .030 0.762
.050 BSC 1.27
.013 .020 0.33 0.51
.0040 .0118
0.10 0.30 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
Ordering Information
Orde ring Code PI49FCT805xTp PI49FCT2805xTp PI49FCT806xTp M arking Code PI49FCT805Tpx PI49FCT2805Tpx PI49FCT806Tpx
x = Speed Grades: blank, A, B, C. p = Package Type: H = 209-mil SSOP Q = 150-mil QSOP S = 300-mil SOIC Example: PI49FCT2805ATH = A grade, H pkg marked as PI49FCT2805THA
Note:
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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