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Block Diagram
D0 CP CP Q D CP Q D CP Q D CP Q D CP Q D CP Q D CP Q D CP Q D D1 D2 D3 D4 D5 D6 D7
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PI74FCT374T PI74FCT574T
Fast CMOS Octal D Registers (3-State)
Features:
* Pin compatible with bipolar FASTTM Series at a higher speed and lower power consumption * TTL input and output levels * Low ground bounce outputs * Extremely low static power * Hysteresis on all inputs * Industrial operating temperature range: -40C to +85C * Packaging (Pb-free & Green available): - 20-pin 173-mil wide plastic TSSOP (L) - 20-pin 150-mil wide plastic QSOP (Q) - 20-pin 150-mil wide plastic TQSOP (R) - 20-pin 209-mil wide plastic SSOP (H) - 20-pin 300-mil wide plastic SOIC (S)
Description:
Pericom Semiconductor's PI74FCT374T/574T are 8-bit wide octal registers designed with eight D-type flip-flops with a buffered common clock and buffered 3-state outputs. When output enable (OE) is LOW, the outputs are enabled. When OE is HIGH, the outputs are in the high impedance state. Input data meeting the setup and hold time requirements of the D inputs is transferred to the O outputs on the LOW-to-HIGH transition of the clock input. Device models available upon request.
OE O0 O1 O2 O3 O4 O5 O6 O7
PI74FCT374 Pin Configuration
OE O0 D0 D1 O1 O2 D2 D3 O3 GND
1 20 2 19 3 20-PIN 18 4 L20 17 5 H20 16 Q20 15 6 S20 14 7 8 13 9 12 10 11
PI74FCT574 Pin Configuration
Vcc O7 D7 D6 O6 O5 D5 D4 O4 CP
OE D0 D1 D2 D3 D4 D5 D6 D7 GND
1 20 2 19 3 20-PIN 18 L20 17 4 Q20 16 5 S20 15 6 7 14 8 13 9 12 10 11
Vcc O0 O1 O2 O3 O4 O5 O6 O7
CP
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
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 ................................................................................... 120 mA 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.
Truth Table(1)
Function High-Z Load Register OE H H L L H H Inputs CP L H DN X X L H L H Outputs ON Z Z L H Z Z Internal QN NC NC H L H L
Pin Description
Pin Name OE CP D0-D7 O0-O7 O0-O7 GND VCC Description Output Enable Input (Active LOW) Clock Pulse for the register. Enters data on LOW-to-HIGH transition Data Inputs 3-State Outputs (true) 3-State Outputs (inverted) Ground Power
1.
H = High Voltage Level L = Low Voltage Level X = Don't Care Z = High Impedance NC = No Change = LOW-to-HIGH transition
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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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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, VCC = 5.0V 5%)
Parameters Description VOH VOL VOL VIH VIL IIH IIL IOZH IOZL VIK IOFF IOS VH Output HIGH Voltage Output LOW Current Output LOW Current Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Power Down Disable Short Circuit Current Input Hysteresis VCC = Min., IIN = -18 mA VCC = GND, VOUT = 4.5V VCC = Max. , VOUT = GND
(3)
Test Conditions(1) VCC = Min., VIN = VIH or VIL 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 = 2.7V VOUT = 0.5V IOH = -15.0 mA IOL = 64 mA IOL = 12 mA (25 Series)
Min. Typ(2) Max. Units 2.4 3.0 0.3 0.3 2.0 0.8 1 -1 1 -1 -0.7 -- -60 -- -120 200 -1.2 100 0.55 0.50 V V V V V A A A A V A mA mV
Capacitance (TA = 25C, f = 1 MHz)
Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 6 8 Max. 10 12 Units pF pF
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
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 OE = GND One Input Toggling 50% Duty Cycle VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle OE = GND fI = 5 MHZ One Bit Toggling VCC = Max., Outputs Open fCP = 10 MHZ 50% Duty Cycle OE = GND Eight Bits Toggling fI = 2.5 MHZ 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) VIN = VCC VIN = GND Min. Typ(2) 0.1 0.5 0.15 Max. 500 2.0 0.25 Units A mA mA/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND
1.5 2.0
3.5(5) 5.5(5)
mA
VIN = VCC VIN = GND VIN = 3.4V VIN = GND
3.8 6.0
7.3(5) 16.3(5)
Notes: 1. For conditions shown as Max. or Min., 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 = 3.4 V) 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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Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not production tested.
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
PI74FCT374T Switching Characteristics over Operating Range
374TT Com. 374AT Com. Min Max 374CT Com. Min Max 374DT Com. Min Max Units
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW
Description Propagation Delay CP to ON Output Enable Time OE to ON Output Disable Time(3) OE to ON Setup Time HIGH or LOW, DN to CP Hold Time HIGH or LOW, DN to CP CP Pulse Width(3) HIGH or LOW
Conditions(1) CL = 50pF RL = 500
Min
Max
2.0 1.5 1.5 2.0 1.5 7.0
10.0 12.5 8.0 -- -- --
2.0 1.5 1.5 2.0 1.5 5.0
6.5 6.5 5.5 -- -- --
2.0 1.5 1.5 2.0 1.5 5.0
5.2 5.5 5.0 -- -- --
2.0 1.5 1.5 2.0 1.0 3.0
4.5 5.5 5.0 -- -- --
ns ns ns ns ns ns
PI74FCT574T Switching Characteristics over Operating Range
574T Com. 574AT Com. Min Max Max Min 574T Com. Max 574DT Com. Min Max Unit
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW
Description Propagation Delay CP to ON Output Enable Time OE to ON Output Disable Time(3) OE to ON Setup Time HIGH or LOW, DN to CP Hold Time HIGH or LOW, DN to CP CP Pulse Width(3) HIGH or LOW
Conditions(1) CL = 50 pF RL = 500
Min
2.0 1.5 1.5 2.0 1.5 7.0
8.5 10.0 6.5 -- -- --
2.0 1.5 1.5 2.0 1.5 5.0
6.5 6.5 5.5 -- -- --
2.0 1.5 1.5 2.0 1.5 5.0
5.2 5.5 5.0 -- -- --
2.0 1.5 1.5 2.0 1.0 3.0
4.5 5.5 5.0 -- -- --
ns ns ns ns ns ns
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
Packaging Mechanical: 20-pin 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
Packaging Mechanical: 20-pin TSSOP (L)
20
.169 .177
4.3 4.5
1 .252 .260 6.4 6.6 .004 0.09 .008 0.20 .047 1.20 Max 0.45 0.75 .018 .030
SEATING PLANE
.238 .269 6.1 6.7
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 0.05 .006 0.15
X.XX X.XX
DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
Packaging Mechanical: 20-pin 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
Packaging Mechanical: 20-pin 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
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
PI74FCT374T Ordering Information
Ordering Code PI74FCT374TQ PI74FCT374TQE PI74FCT374TS PI74FCT374TSE PI74FCT374ATH PI74FCT374ATHE PI74FCT374ATQ PI74FCT374ATQE PI74FCT374ATS PI74FCT374ATSE PI74FCT374ATL PI74FCT374ATLE PI74FCT374CTH PI74FCT374CTHE PI74FCT374CTQ PI74FCT374CTQE PI74FCT374CTS PI74FCT374CTSE PI74FCT374CTL PI74FCT374CTLE PI74FCT374DTH PI74FCT374DTHE PI74FCT374CTQ PI74FCT374CTQE PI74FCT374CTL PI74FCT374CTLE Package Code Q Q S S H H Q Q S S L L H H Q Q S S L L H H Q Q L L Package Type 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin SSOP Pb-free & Green, 20-pin SSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin TSSOP Pb-free & Green, 20-pin TSSOP 20-pin SSOP Pb-free & Green, 20-pin SSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin TSSOP Pb-free & Green, 20-pin TSSOP 20-pin SSOP Pb-free & Green, 20-pin SSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin TSSOP Pb-free & Green, 20-pin TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
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PI74FCT374T PI74FCT574T Octal D Registers (3-State)
PI74FCT574T Ordering Information
Ordering Code PI74FCT574TL PI74FCT574TLE PI74FCT574TQ PI74FCT574TQE PI74FCT574TS PI74FCT574TSE PI74FCT574ATL PI74FCT574ATLE PI74FCT574ATQ PI74FCT574ATQE PI74FCT574ATS PI74FCT574ATSE PI74FCT574CTL PI74FCT574CTLE PI74FCT574CTQ PI74FCT574CTQE PI74FCT574CTS PI74FCT574CTSE PI74FCT574DTQ PI74FCT574DTQE PI74FCT574DTS PI74FCT574DTSE Package Code L L Q Q S S L L Q Q S S L L Q Q S S Q Q S S Package Type 20-pin TSSOP Pb-free & Green, 20-pin TSSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin TSSOP Pb-free & Green, 20-pin TSSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin TSSOP Pb-free & Green, 20-pin TSSOP 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC 20-pin QSOP Pb-free & Green, 20-pin QSOP 20-pin SOIC Pb-free & Green, 20-pin SOIC
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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