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| TECHNICAL DATA KK74HC373A Octal 3-State Noninverting Transparent Latch High-Performance Silicon-Gate CMOS The KK74HC373A is identical in pinout to the LS/ALS373. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. These latches appear transparent to data (i.e., the outputs change asynchronously) when Latch Enable is high. When Latch Enable goes low, data meeting the setup and hold time becomes latched. The Output Enable input does not affect the state of the latches, but when Output Enable is high, all device outputs are forced to the highimpedance state. Thus, data may be latched even when the outputs are not enabled. * Outputs Directly Interface to CMOS, NMOS, and TTL * Operating Voltage Range: 2.0 to 6.0 V * Low Input Current: 1.0 A * High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION KK74HC373AN Plastic KK74HC373ADW SOIC TA = -55 to 125 C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs PIN 20=VCC PIN 10 = GND Output Enable L L L H Latch Enable H H L X D H L X X Output Q H L No Change Z X = Don't Care Z = High Impedance 1 KK74HC373A MAXIMUM RATINGS* Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL * Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 20 35 75 750 500 -65 to +150 260 Unit V V V mA mA mA mW C C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/C from 65 to 125C SOIC Package: : - 7 mW/C from 65 to 125C RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT TA tr, tf Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Operating Temperature, All Package Types Input Rise and Fall Time (Figure 1) VCC =2.0 V VCC =4.5 V VCC =6.0 V Min 2.0 0 -55 0 0 0 Max 6.0 VCC +125 1000 500 400 Unit V V C ns This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or VOUT)VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. 2 KK74HC373A DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol Parameter Test Conditions V Guaranteed Limit 25 C to -55C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.98 5.48 0.1 0.1 0.1 0.26 0.26 0.1 0.5 85 C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 1.0 5.0 125 C 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 1.0 10 A A V Unit VIH Minimum HighLevel Input Voltage Maximum Low Level Input Voltage Minimum HighLevel Output Voltage VOUT=0.1 V or VCC-0.1 V IOUT 20 A VOUT=0.1 V or VCC-0.1 V IOUT 20 A VIN=VIH or VIL IOUT 20 A VIN=VIH or VIL IOUT 6.0 mA IOUT 7.8 mA 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 6.0 6.0 V VIL V VOH V VOL Maximum LowLevel Output Voltage VIN= VIL or VIH IOUT 20 A VIN= VIL or VIH IOUT 6.0 mA IOUT 7.8 mA IIN IOZ Maximum Input Leakage Current Maximum ThreeState Leakage Current Maximum Quiescent Supply Current (per Package) VIN=VCC or GND Output in High-Impedance State VIN= VIL or VIH VOUT=VCC or GND VIN=VCC or GND IOUT=0A ICC 6.0 4.0 40 160 A 3 KK74HC373A AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input tr=tf=6.0 ns) VCC Symbol Parameter V Guaranteed Limit 25 C to -55C 125 25 21 140 28 24 150 30 26 150 30 26 60 12 10 10 15 85C 125C Unit tPLH, tPHL Maximum Propagation Delay, Input D to Q (Figures 1 and 5) Maximum Propagation Delay , Latch Enable to Q (Figures 2 and 5) Maximum Propagation Delay ,Output Enable to Q (Figures 3 and 6) Maximum Propagation Delay , Output Enable to Q (Figures 3 and 6) Maximum Output Transition Time, Any Output (Figures 1 and 5) Maximum Input Capacitance Maximum Three-State Output Capacitance (Output in High-Impedance State) Power Dissipation Capacitance (Per Enabled Output) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 - 155 31 26 175 35 30 190 38 33 190 38 33 75 15 13 10 15 190 38 32 210 42 36 225 45 38 225 45 38 90 18 15 10 15 ns tPLH, tPHL ns tPLZ, tPHZ ns tPZL, tPZH ns tTLH, tTHL ns CIN COUT pF pF Typical @25C,VCC=5.0 V 36 pF CPD Used to determine the no-load dynamic power consumption: PD=CPDVCC2f+ICCVCC TIMING REQUIREMENTS (CL=50pF,Input tr=tf=6.0 ns) VCC Symbol tSU Parameter Minimum Setup Time, Input D to Latch Enable (Figure 4) Minimum Hold Time,Latch Enable to Input D (Figure 4) Minimum Pulse Width, Latch Enable (Figure 2) Maximum Input Rise and Fall Times (Figure 1) V 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 25 C to -55C 25 5.0 5.0 5.0 5.0 5.0 60 12 10 1000 500 400 Guaranteed Limit 85C 30 6.0 6.0 5.0 5.0 5.0 75 15 13 1000 500 400 125C 40 8.0 7.0 5.0 5.0 5.0 90 18 15 1000 500 400 Unit ns th ns tw ns tr, tf ns 4 KK74HC373A Figure 1. Switching Waveforms Figure 2. Switching Waveforms Figure 3. Switching Waveforms Figure 4. Switching Waveforms Figure 5. Test Circuit Figure 6. Test Circuit EXPANDED LOGIC DIAGRAM 5 KK74HC373A N SUFFIX PLASTIC DIP (MS - 001AD) A Dimension, mm 20 11 B 1 10 Symbol A B C MIN 24.89 6.1 MAX 26.92 7.11 5.33 F L D F 0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38 0.56 1.78 C -T- SEATING PLANE G H H J N G D 0.25 (0.010) M T K M J K L M N 10 3.81 8.26 0.36 NOTES: 1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. D SUFFIX SOIC (MS - 013AC) A 20 11 Dimension, mm Symbol MIN 12.6 7.4 2.35 0.33 0.4 1.27 9.53 0 0.1 0.23 10 0.25 8 0.3 0.32 10.65 0.75 MAX 13 7.6 2.65 0.51 1.27 H B P A B 1 G 10 C R x 45 C D F -TD 0.25 (0.010) M T C M K SEATING PLANE J F M G H J K M P R NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side. 6 |
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