SL74HC373D

SL74HC373 Octal 3-State Noninverting Transparent Latch High-Performance Silicon-Gate CMOS The SL74HC373 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 high-impedance 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 µA • High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION SL74HC373N Plastic SL74HC373D 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 SLS System Logic Semiconductor SL74HC373 MAXIMUM RATINGS * Symbol VCC VIN VOUT IIN IOUT ICC PD T stg 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 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT TA tr, t f 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 a nd 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 V ). CC Unused outputs must be left open. SLS System Logic Semiconductor SL74HC373 DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol Parameter Test Conditions V Guaranteed Limit 25 °C to -55°C 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 µA µA V Unit VIH Minimum High-Level Input Voltage Maximum Low -Level Input Voltage Minimum High-Level Output Voltage VOUT=0.1 V or VCC-0.1 V IOUT≤ 20 µA VOUT=0.1 V or VCC-0.1 V IOUT ≤ 20 µA VIN=VIH or VIL IOUT ≤ 20 µA 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 Low-Level Output Voltage VIN= VIL or VIH IOUT ≤ 20 µA VIN= VIL or VIH IOUT ≤ 6.0 mA IOUT ≤ 7.8 mA IIN IOZ Maximum Input Leakage Current Maximum Three-State Leakage Current VIN=VCC or GND Output in High-Impedance State VIN= VIL or VIH VOUT=VCC or GND VIN=VCC or GND IOUT=0µA ICC Maximum Quiescent Supply Current (per Package) 6.0 4.0 40 160 µA SLS System Logic Semiconductor SL74HC373 AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input t r=t f=6.0 ns) VCC Symbol tPLH, t PHL Parameter 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) CPD Used to determine the no-load dynamic power consumption: PD=CPDVCC2f+ICCVCC 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 2.0 4.5 6.0 Guaranteed Limit 25 °C to -55°C 125 25 21 140 28 24 150 30 26 150 30 26 60 12 10 10 15 ≤85°C 155 31 26 175 35 30 190 38 33 190 38 33 75 15 13 10 15 ≤125°C 190 38 32 210 42 36 225 45 38 225 45 38 90 18 15 10 15 Unit ns tPLH, t PHL ns tPLZ, t PHZ ns tPZL, t PZH ns tTLH, t THL ns CIN COUT pF pF Typical @25°C,VCC=5.0 V 36 pF TIMING REQUIREMENTS (CL=50pF,Input t r=t f=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 -55°C 25 5.0 5.0 5.0 5.0 5.0 60 12 10 1000 500 400 Guaranteed Limit ≤85°C 30 6.0 6.0 5.0 5.0 5.0 75 15 13 1000 500 400 ≤125°C 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 SLS System Logic Semiconductor SL74HC373 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 SLS System Logic Semiconductor