IN74HC151 8-INPUT DATA SELECTOR/MULTIPLEXER High-Performance Silicon-Gate CMOS • • • • The IN74HC151 is identical in pinout to the LS/ALS151. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The device selects one of the eight binary Data Inputs, as determined by the Address Inputs. The Strobe pin must be at a low level for the selected data to appear at the outputs. If Strobe is high, the Y output is forced to a low level and the Y output is forced to a high level. 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 IN74HC151N Plastic IN74HC151D SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE PIN 16 =VCC PIN 8 = GND Inputs A0 Strobe Outputs Y Y A2 A1 X L X L X L H L L D0 L L H L D1 L H L L D2 L H H L D3 H L L L D4 H L H L D5 H H L L D6 H H H L D7 D0,D1...D7=the level of the respective D input X = don’t care 1 H D0 D1 D2 D3 D4 D5 D6 D7 IN74HC151 MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V VIN DC Input Voltage (Referenced to GND) -1.5 to VCC +1.5 V VOUT DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V IIN DC Input Current, per Pin mA ±20 IOUT DC Output Current, per Pin mA ±25 ICC DC Supply Current, VCC and GND Pins mA ±50 PD Power Dissipation in Still Air, Plastic DIP+ 750 mW SOIC Package+ 500 Tstg Storage Temperature -65 to +150 °C 260 TL Lead Temperature, 1 mm from Case for 10 °C 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 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C RECOMMENDED OPERATING CONDITIONS Symbol Parameter VCC DC Supply Voltage (Referenced to GND) VIN, VOUT DC Input Voltage, Output Voltage (Referenced to GND) TA Operating Temperature, All Package Types t r, tf 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 IN74HC151 DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND) Guaranteed Limit VCC Symbol Parameter Test Conditions V ≤85 ≤125 25 °C to °C °C -55°C 1.5 1.5 VOUT=0.1 V or VCC-0.1 V 2.0 1.5 VIH Minimum High3.15 3.15 3.15 Level Input 4.5 IOUT≤ 20 µA 4.2 4.2 4.2 Voltage 6.0 0.3 0.3 VOUT=0.1 V or VCC-0.1 V 2.0 0.3 VIL Maximum Low 0.9 0.9 0.9 Level Input 4.5 IOUT ≤ 20 µA 1.2 1.2 1.2 Voltage 6.0 1.9 1.9 VIN=VIH or VIL 1.9 VOH Minimum High2.0 4.4 4.4 4.4 Level Output 4.5 IOUT ≤ 20 µA 5.9 5.9 5.9 Voltage 6.0 4.5 3.98 3.84 3.7 VIN=VIH or VIL 6.0 5.48 5.34 5.2 IOUT ≤ 4.0 mA IOUT ≤ 5.2 mA 0.1 0.1 VIN=VIH or VIL 0.1 VOL Maximum Low2.0 0.1 0.1 0.1 Level Output 4.5 IOUT ≤ 20 µA 0.1 0.1 0.1 Voltage 6.0 4.5 0.26 0.33 0.4 VIN=VIH or VIL 6.0 0.26 0.33 0.4 IOUT ≤ 4.0 mA IOUT ≤ 5.2 mA IIN Maximum Input VIN=VCC or GND 6.0 ±0.1 ±1.0 ±1.0 Leakage Current VIN=VCC or GND ICC Maximum 6.0 8.0 80 160 Quiescent Supply IOUT=0µA Current (per Package) 3 Unit V V V V µA µA IN74HC151 AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns) Guaranteed Limit VCC Symbol Parameter V 25 °C ≤85°C ≤125 to °C -55°C 280 230 185 tPLH, Maximum Propagation Delay, Input D to 2.0 56 46 37 4.5 tPHL Output Y or Y (Figures 1,3 and 6) 48 39 31 6.0 310 255 205 tPLH, Maximum Propagation Delay , Input A to 2.0 62 51 41 4.5 tPHL Output Y or Y (Figures 2 and 6) 53 43 35 6.0 190 155 125 tPLH, Maximum Propagation Delay , Strobe to 2.0 38 31 25 4.5 tPHL Output Y or Y (Figures 4,5 and 6) 32 26 21 6.0 110 95 75 tTLH, tTHL Maximum Output Transition Time, Any 2.0 22 19 15 Output (Figures 1 and 6) 4.5 19 16 13 6.0 CIN Maximum Input Capacitance 10 10 10 CPD Power Dissipation Capacitance (Per Package) Used to determine the no-load dynamic power consumption: 2 PD=CPDVCC f+ICCVCC ns ns ns ns pF Typical @25°C,VCC=5.0 V 36 Figure 1. Switching Waveforms Figure 2. Switching Waveforms Figure 3. Switching Waveforms Figure 4. Switching Waveforms 4 Unit pF IN74HC151 Figure 5. Switching waveforms Figure 6.Test Circuit EXPANDED LOGIC DIAGRAM 5