SL74HC75 Dual 2-Bit Transparent Latch High-Performance Silicon-Gate CMOS The SL74HC75 is identical in pinout to the LS/ALS75. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. This device consists of two independent 2-bit transparent latches and can be used as temporary storage for binary information between processing units and input/output or indicator units. Each latch stores the input data while Latch Enable is at a logic low. The outputs follow the data inputs when Latch Enable is at a logic high. * 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 SL74HC75N Plastic SL74HC75D SOIC TA = -55 to 125 C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE PIN 5=VCC PIN 12 = GND Inputs Outputs D Latch Enable Q Q L H L H H H H L X L Q0 Q0 X = Don't Care Q0 = latched data SLS System Logic Semiconductor SL74HC75 MAXIMUM RATINGS * Symbol Parameter Value Unit -0.5 to +7.0 V VCC DC Supply Voltage (Referenced to GND) VIN DC Input Voltage (Referenced to GND) -1.5 to VCC +1.5 V DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V DC Input Current, per Pin 20 mA DC Output Current, per Pin 25 mA ICC DC Supply Current, VCC and GND Pins 50 mA PD Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ 750 500 mW -65 to +150 C 260 C VOUT IIN IOUT Tstg TL Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) * 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 Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) TA Operating Temperature, All Package Types tr, t f Input Rise and Fall Time (Figure 1) VCC =2.0 V VCC =4.5 V VCC =6.0 V Min Max Unit 2.0 6.0 V 0 VCC V -55 +125 C 0 0 0 1000 500 400 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. SLS System Logic Semiconductor SL74HC75 DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Guaranteed Limit Test Conditions V 25 C to -55C 85 C 125 C Unit Minimum High-Level Input Voltage VOUT=0.1 V or VCC-0.1 V IOUT 20 A 2.0 4.5 6.0 1.5 3.15 4.2 1.5 3.15 4.2 1.5 3.15 4.2 V VIL Maximum Low -Level Input Voltage VOUT=0.1 V or VCC-0.1 V IOUT 20 A 2.0 4.5 6.0 0.3 0.9 1.2 0.3 0.9 1.2 0.3 0.9 1.2 V VOH Minimum High-Level Output Voltage VIN=VIH or VIL IOUT 20 A 2.0 4.5 6.0 1.9 4.4 5.9 1.9 4.4 5.9 1.9 4.4 5.9 V 4.5 6.0 3.98 5.48 3.84 5.34 3.7 5.2 2.0 4.5 6.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 VIN= VIL or VIH IOUT 4.0 mA IOUT 5.2 mA 4.5 6.0 0.26 0.26 0.33 0.33 0.4 0.4 Symbol Parameter VIH VIN=VIH or VIL IOUT 4.0 mA IOUT 5.2 mA VOL Maximum Low-Level Output Voltage VIN= VIL or VIH IOUT 20 A V IIN Maximum Input Leakage Current VIN=VCC or GND 6.0 0.1 1.0 1.0 A ICC Maximum Quiescent Supply Current (per Package) VIN=VCC or GND IOUT=0A 6.0 4.0 40 80 A SLS System Logic Semiconductor SL74HC75 AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input t r=t f=6.0 ns) VCC Symbol Parameter Guaranteed Limit V 25 C to -55C 85C 125C Unit tPLH, t PHL Maximum Propagation Delay, D to Q (Figures 1 and 5) 2.0 4.5 6.0 125 25 21 155 31 26 190 38 32 ns tPLH, t PHL Maximum Propagation Delay , D to Q (Figures 1 and 5) 2.0 4.5 6.0 110 22 19 140 28 24 165 33 28 ns tPLH, t PHL Maximum Propagation Delay ,Latch Enable to Q (Figures 2 and 5) 2.0 4.5 6.0 145 29 25 180 36 31 220 44 38 ns tPLH, t PHL Maximum Propagation Delay ,Latch Enable to Q (Figures 2 and 5) 2.0 4.5 6.0 125 25 21 155 31 26 190 38 32 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 3 and 5) 2.0 4.5 6.0 75 15 13 95 19 16 110 22 19 ns - 10 10 10 pF CIN Maximum Input Capacitance Power Dissipation Capacitance (Per Latch) CPD Typical @25C,VCC=5.0 V Used to determine the no-load dynamic power consumption: PD=CPDVCC2f+ICCVCC 35 pF TIMING REQUIREMENTS (CL=50pF,Input t r=t f=6.0 ns) VCC Symbol Parameter Guaranteed Limit V 25 C to -55C 85C 125C Unit tSU Minimum Setup Time, Input D to Latch Enable (Figure 4) 2.0 4.5 6.0 100 20 17 125 25 21 150 30 26 ns th Minimum Hold Time,Latch Enable to D (Figure 4) 2.0 4.5 6.0 25 5 5 30 6 6 40 8 7 ns tw Minimum Pulse Width, Latch Enable Input (Figure 2) 2.0 4.5 6.0 80 16 14 100 20 17 120 24 20 ns tr, tf Maximum Input Rise and Fall Times (Figure 1) 2.0 4.5 6.0 1000 500 400 1000 500 400 1000 500 400 ns SLS System Logic Semiconductor SL74HC75 Figure 1. Switching Waveforms Figure 2. Switching Waveforms Figure 3. Switching Waveforms Figure 4. Switching Waveforms Figure 5. Test Circuit EXPANDED LOGIC DIAGRAM SLS System Logic Semiconductor