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TO 7 OTHER CHANNELS
Truth Table(1)
Inputs DN H L X X CP L X OE L L L H Outputs ON H L O0 Z
V
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PI74LCX374
Fast CMOS 3.3V Octal D Flip-Flop
Product Features
* * * * * * * * * Compatible with LVT and FCT3 families of products 5V Tolerant inputs and outputs 2.0V - 3.6V VCC supply operation Balanced sink and source output drives (24mA) Low ground bounce outputs Power Down High Impedance inputs and outputs Supports live insertion Hysteresis on all inputs ESD protection exceeds 2000V, Human Body Mode 200V, Machine Mode * Packages: - 20-pin 173 mil -wide plastic TSSOP (L) - 20-pin 150 mil- wide plastic QSOP (Q) - 20-pin 300 mil -wide plastic SOIC (S)
TM
Product Description
Pericom Semiconductor's PI74LCX series of logic circuits are produced using the Company's advanced 0.6 CMOS technology, achieving industry leading speed grades. The PI74LCX374 is an 8-bit wide octal D-type flip flop designed 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. The PI74LCX374 can be driven from either 3.3V or 5.0V devices allowing for the device to be used as a translator in a mixed 3.3V/5.0V system.
Logic Block Diagram
OE CP D0 D Q CP O0
Product Pin Configuration
OE O0 D0 D1 O1 O2 D2 D3 O3 GND 20 1 19 2 18 3 4 20-Pin 17 5 L, Q, S 16 15 6 14 7 13 8 12 9 11 10 VCC O7 D7 D6 O6 O5 D5 D4 O4 CP
Product Pin Description
Pin Name OE CP D0- D7 O 0- O 7 GND VCC De s cription Output Enable Inputs (Active LOW) Clock Pulse, LOW- to- HIGH Transition Data Inputs 3- State Outputs Ground Power
Note: 1. H = High Voltage Level; X = Don't Care L = Low Voltage Level; Z = High Impedance = LOW-to-HIGH Transition; O0 = Previous O0 before High-to-Low of CP
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PI74LCX374 Fast CMOS 3.3V Octal D Flip-Flop
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 .................................................................................... 1.0W 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.
Recommended Operating Conditions
Symbol VCC VI VO Supply Voltage Input Voltage Output Voltage HIGH or LOW State 3- State VCC = 3.0V - 3.6V IOH/IOL TA t/v Output Current Free- Air Operating Temperature Input Edge Rate VIN = 0.8V - 2.0V, VCC = 3.0V VCC = 2.7V VCC = 2.3V - 2.7V Parame te rs Operating Data Retention M in. 2.0 1.5 0 0 0 -- -- -- -40 0 M a x. 3.6 3.6 5.5 VCC 5.5 24 12 8 +85 10 C ns/V mA V Units
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PI74LCX374 Fast CMOS 3.3V Octal D Flip-Flop
DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, VCC = 2.7V to 3.6V)
Parame te rs VIH VIL VOH De s cription Input HIGH Voltage Input LOW Voltage Output HIGH Voltage Te s t Conditions (1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = 2.7- 3.6 VCC = 2.7 VCC = 3.0 VOL Output LOW Voltage VCC = 2.7- 3.6 VCC = 2.7 VCC = 3.0 VIK II IOZ IOFF ICC ICC Clamp Diode Voltage Input Leakage Current 3- State Output Leakage Power Down Disable Quiescent Power Supply Current Quiescent Power Supply Current TTL Inputs HIGH IOH = -0.1mA IOH = -12mA IOH = -18mA IOH = -24mA IOL = 0.1mA IOL = 12mA IOL = 16mA IOL = 24mA VCC = Min., IIN = -18mA 0 VI 5.5V 0 VO 5.5V VI = VIH or VIL VCC = Max. VCC = Max. VCC = 2.7- 3.6 VCC = 2.7- 3.6 M in. 2.0 -- VCC- 0.2 2.2 2.4 2.2 -- -- -- -- -- -- -- -- Typ(2) -- -- -- -- -- -- -- -- -- -- - 0.7 -- -- -- 0.1 M ax. -- 0.8 -- -- -- -- 0.2 0.4 0.4 0.55 -1.2 5 5 10 10 500 A V Units
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
VCC = 0V, VIN or VOUT 5.5V VIN = GND oR VCC VIN = VCC - 0.6V(3)
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 = 3.3V, +25C ambient. 3. Per TTL driven input; all other inputs at VCC or GND.
Capacitance
Parame te rs CIN COUT CPD De s cription Input Capacitance Output Capacitance Power Dissipation Capacitance Te s t Conditions VCC = Open, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC, F = 10 MHz Typ. 7 8 25 pF Units
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PI74LCX374 Fast CMOS 3.3V Octal D Flip-Flop
Switching Characteristics over Operating Range
VCC = 3.3V 0.3V Parame te rs fMAX tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW tsk(o) De s cription Maximum Clock Frequency Propagation Delay CP to OX Output Enable time OE to Ox Output Disable Time OE to Ox Setup Time HIGH or LOW, Dx to CP Hold Time HIGH or LOW, Dx to CP Pulse Width Output Skew(1) C L = 50pF RL = 500 ohms Conditions M in. 150 1.5 1.5 1.5 2.5 1.5 3.3 - M a x. - 8.5 8.5 7.5 - - - 1.0 VCC = 2.7V M in. 150 1. 5 1. 5 1.5 2.5 1.5 3.3 - M a x. - 9.5 9.5 8.5 ns - - - - Units
Note: 1. Skew between any two outputs, of the same package, switching in the same direction.
Dynamic Switching Characteristics (TA = +25C)
Parame te rs VOLP VOLV De s cription Dynamic Output LOW Peak Voltage Dynamic Output LOW Valley Voltage Te s t Conditions (1) VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V Typ. Units
0.8
V
Note: 1. Measured with n-1 outputs switching from High-to-Low or Low-to-High. The remaining output is measured in the LOW state.
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PI74LCX374 Fast CMOS 3.3V Octal D Flip-Flop
20-Pin 173 Mil-Wide Plastic TSSOP (L) Package
20
1 2
.169 .177
4.3 4.5
3
1 .252 .260 6.4 6.6 .004 0.09 .008 0.20 .047 1.20 Max 0.45 0.75 .018 .030
4 5 6
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
7 8
20-Pin 150 Mil-Wide Plastic QSOP (Q) Package
20
.008 0.20 MIN.
.150 .157
3.81 3.99
Guage Plane
.008 .013 0.20 0.33
9 10 11 12
.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
13 14 15
.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
5
PS8570B
1/20/04
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PI74LCX374 Fast CMOS 3.3V Octal D Flip-Flop
20-Pin 300 Mil-Wide Plastic SOIC (S) Package
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 2.35 .1043 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 PI74LCX374L PI74LCX374Q PI74LCX374S De s cription 20- pin, 173- mil wide plastic TSSOP 20- pin, 150- mil wide plastic QSOP 20- pin, 300- mil wide plastic SOIC
Note: 1. Thermal characteristics can be found on the web at http://www.pericom.com/packaging
Pericom Semiconductor Corporation 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS8570B 1/20/04

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