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ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. 74LCX374 Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Features General Description 5V tolerant inputs and outputs The LCX374 consists of eight D-type flip-flops featuring separate D-type inputs for each flip-flop and 3-STATE outputs for bus-oriented applications. A buffered clock (CP) and Output Enable (OE) are common to all flipflops. The LCX374 is designed for low voltage applications with capability of interfacing to a 5V signal environment. 2.3V-3.6V VCC specifications provided 8.5ns tPD max (VCC = 3.3V), 10A ICC max Power-down high impedance inputs and outputs Supports live insertion/withdrawal(1) 24mA output drive (VCC = 3.0V) Implements proprietary noise/EMI reduction circuitry Latch-up performance exceeds JEDEC 78 conditions ESD performance The LCX374 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. - Human Body Model > 2000V - Machine Model > 200V Leadless DQFN package Note: 1. To ensure the high impedance state during power up or down, OE should be tied to VCC through a pull-up resistor: the minimum value of the resistor is determined by the current-sourcing capability of the driver. Ordering Information Order Number Package Number Package Description 74LCX374WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LCX374SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LCX374BQX(2) MLP20B 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm 74LCX374MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74LCX374MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Note: 2. DQFN package available in Tape and Reel only. Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering number. All packages are lead free per JEDEC: J-STD-020B standard. (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs December 2013 Pin Assignments for SOIC, SOP, SSOP, TSSOP OE O0 D0 D1 O1 O2 D2 D3 O3 GND 1 20 2 19 3 18 4 17 5 16 6 7 15 14 8 13 9 12 10 11 VCC O7 D7 D6 O6 O5 D5 D4 O4 CP D0 D1 D2 D3 D4 D5 D6 D7 CP OE O0 O1 O2 O3 O4 O5 O6 O7 Truth Table Inputs Dn CP H L Pad Assignments for DQFN OE VCC 1 20 OE On L H L L X L L O0 X X H Z H = HIGH Voltage Level O0 2 19 O7 D0 3 18 D7 X = Immaterial D1 4 17 D6 Z = High Impedance O1 5 16 O6 O2 6 15 O5 D2 7 14 D5 D3 8 13 D4 O3 9 12 O4 10 Outputs L = LOW Voltage Level = LOW-to-HIGH Transition O0 = Previous O0 before HIGH-to-LOW of CP Functional Description 11 GND CP (Bottom View) (Top View) Pin Description Pin Names Description D0-D7 Data Inputs CP Clock Pulse Input OE Output Enable Input O0-O7 3-STATE Outputs DAP No Connect The LCX374 consists of eight edge-triggered flip-flops with individual D-type inputs and 3-STATE true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Note: DAP (Die Attach Pad) (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 2 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Logic Symbol Connection Diagrams D0 D1 D2 D3 D4 D5 D6 D7 CP CP O D CP O D CP O D CP O D CP O D CP O D CP O D CP O D OE O0 O1 O2 O3 O4 O5 O6 O7 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 3 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Logic Diagram Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Value Units Supply Voltage -0.5 to +7.0 V VI DC Input Voltage -0.5 to +7.0 V VO DC Output Voltage -0.5 to +7.0 V VCC Parameter Conditions Output in 3-STATE Output in HIGH or LOW State(3) -0.5 to VCC + 0.5 IIK DC Input Diode Current VI < GND -50 mA IOK DC Output Diode Current VO < GND -50 mA VO > VCC +50 IO DC Output Source/Sink Current 50 mA ICC DC Supply Current per Supply Pin 100 mA IGND DC Ground Current per Ground Pin 100 mA TSTG Storage Temperature -65 to +150 C Recommended Operating Conditions(4) The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol VCC Parameter Supply Voltage VI Input Voltage VO Output Voltage IOH / IOL Output Current Conditions Min. Max. Units Operating 2.0 3.6 V Data Retention 1.5 3.6 0 5.5 V HIGH or LOW State 0 VCC V 3-STATE 0 5.5 VCC = 3.0V-3.6V 24 VCC = 2.7V-3.0V 12 VCC = 2.3V-2.7V TA t / V Free-Air Operating Temperature Input Edge Rate VIN = 0.8V-2.0V, VCC = 3.0V mA 8 -40 85 C 0 10 ns /V Notes: 3. IO Absolute Maximum Rating must be observed. 4. Unused inputs must be held HIGH or LOW. They may not float. (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 4 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Absolute Maximum Ratings TA = -40C to +85C Symbol Parameter VIH HIGH Level Input Voltage VIL LOW Level Input Voltage VOH VOL HIGH Level Output Voltage VCC (V) Min. 2.3-2.7 1.7 2.7-3.6 2.0 Max. 0.7 2.7-3.6 0.8 IOH = -100A 1.8 2.7 IOH = -12mA 2.2 3.0 IOH = -18mA 2.4 IOH = -24mA 2.2 V IOL = 100A 0.2 2.3 IOL = 8mA 0.6 2.7 IOL = 12mA 0.4 3.0 IOL = 16mA 0.4 2.3-3.6 V VCC - 0.2 IOH = -8mA 2.3 Units V 2.3-2.7 2.3-3.6 LOW Level Output Voltage Conditions V IOL = 24mA 0.55 Input Leakage Current 2.3-3.6 0 VI 5.5V 5.0 A IOZ 3-STATE Output Leakage 2.3-3.6 0 VO 5.5V, VI = VIH or VIL 5.0 A IOFF Power-Off Leakage Current 0 VI or VO = 5.5V 10 A ICC Quiescent Supply Current A II ICC Increase in ICC per Input 2.3-3.6 2.3-3.6 VI = VCC or GND 10 3.6V VI, VO 5.5V(5) 10 VIH = VCC - 0.6V 500 A AC Electrical Characteristics TA = -40C to +85C, RL = 500 VCC = 3.3V 0.3V, CL = 50pF Symbol fMAX Parameter Min. Max. VCC = 2.7V, CL = 50pF Min. Max. 150 VCC = 2.5V 0.2V, CL = 30pF Min. Max. 150 Units Maximum Clock Frequency 150 MHz tPHL, tPLH Propagation Delay CP to On 1.5 8.5 1.5 9.5 1.5 10.5 ns tPZL, tPZH Output Enable Time 1.5 8.5 1.5 9.5 1.5 10.5 ns tPLZ, tPHZ Output Disable Time 1.5 7.5 1.5 8.5 1.5 9.0 ns tS Setup Time 2.5 2.5 4.0 ns tH Hold Time 1.5 1.5 2.0 ns tW Pulse Width 3.3 3.3 4.0 ns tOSHL, tOSLH Output to Output Skew(6) 1.0 ns Notes: 5. Outputs disabled or 3-STATE only. 6. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 5 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs DC Electrical Characteristics TA = 25C Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak VOL Quiet Output Dynamic Valley VOL VCC (V) Conditions Typical Units V 3.3 CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 2.5 CL = 30pF, VIH = 2.5V, VIL = 0V 0.6 3.3 CL = 50pF, VIH = 3.3V, VIL = 0V -0.8 2.5 CL = 30pF, VIH = 2.5V, VIL = 0V -0.6 V Capacitance Symbol Parameter Conditions Typical Units CIN Input Capacitance VCC = Open, VI = 0V or VCC 7 pF COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF CPD Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, f = 10 MHz 25 pF (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 6 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Dynamic Switching Characteristics VCC OPEN 500 TEST SIGNAL tPLH, tPHL tPZH, tPHZ tPZL, tPLZ GND DUT VI CL 500 Figure 1. AC Test Circuit (CL includes probe and jig capacitance) DATA IN Test Switch tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 0.3V VCC x 2 at VCC = 2.5 0.2V tPZH, tPHZ GND VCC Vmi tpxx OUTPUT CONTROL GND DATA OUT DATA OUT Vmo tW DATA IN VCC Vmi tS tPLH Vmo OUTPUT CONTROL Vmi tPZL tPLZ Vmo VCC GND VCC GND trec MR OR CLEAR Vmo Vmi Setup Time, Hold Time and Recovery Time for Logic Propagation Delay. Pulse Width and trec Waveforms DATA OUT Vmi tS tPHL tH CONTROL INPUT Vmi OUTPUT Vmi GND trec CLOCK VOH VY Vmo 3-STATE Output High Enable and Disable Times for Logic Waveform for Inverting and Non-Inverting Functions CONTROL IN GND tPHZ tPZH tpxx VCC Vmi tr VCC tf GND ANY OUTPUT VX VOL 3-STATE Output Low Enable and Disable Times for Logic 90% 90% 10% 10% VOH VOL trise and tfall Figure 2. Waveforms (Input Characteristics; f =1MHz, tr = tf = 3ns) VCC Symbol 3.3V 0.3V 2.7V 2.5V 0.2V Vmi 1.5V 1.5V VCC / 2 Vmo 1.5V 1.5V VCC / 2 Vx VOL + 0.3V VOL + 0.3V VOL + 0.15V Vy VOH - 0.3V VOH - 0.3V VOH - 0.15V (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 7 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs AC Loading and Waveforms (Generic for LCX Family) Input Stage P2 P1 VCC Data ESD P5 D2 N+/P- X1 VDD N1 N2 GTOTM Output Input Stage D6 N+/P- P4 P3 N5 Enable N4 ESD D4 N+/P- N3 (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 8 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Schematic Diagram (Generic for LCX Family) Tape Format for DQFN Package Designator Tape Section Number Cavities Cavity Status Cover Tape Status BQX Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed Tape Dimensions inches (millimeters) Reel Dimensions inches (millimeters) Tape Size A B 12mm 13.0 (330.0) 0.059 (1.50) (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 C D N 0.512 (13.00) 0.795 (20.20) 2.165 (55.00) W1 W2 0.488 (12.4) 0.724 (18.4) www.fairchildsemi.com 9 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Tape and Reel Specification 13.00 12.60 A 11.43 20 11 B 9.50 10.65 7.60 10.00 7.40 2.25 1 10 0.51 0.35 PIN ONE INDICATOR 0.25 M 0.65 1.27 1.27 C B A LAND PATTERN RECOMMENDATION 2.65 MAX SEE DETAIL A 0.33 0.20 C 0.75 0.25 X 45 0.10 C SEATING PLANE NOTES: UNLESS OTHERWISE SPECIFIED (R0.10) GAGE PLANE (R0.10) 0.30 0.10 0.25 8 0 A) THIS PACKAGE CONFORMS TO JEDEC MS-013, VARIATION AC, ISSUE E B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) CONFORMS TO ASME Y14.5M-1994 1.27 0.40 SEATING PLANE E) LANDPATTERN STANDARD: SOIC127P1030X265-20L (1.40) DETAIL A F) DRAWING FILENAME: MKT-M20BREV3 SCALE: 2:1 Figure 3. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 10 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Physical Dimensions 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) Figure 4. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 11 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) Figure 5. 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 4.5mm Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 12 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) Figure 6. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 13 74LCX374 -- Low Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs Physical Dimensions (Continued) Figure 7. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c)2006 Fairchild Semiconductor Corporation 74LCX374 Rev. 1.6.1 www.fairchildsemi.com 14 TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. 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