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| TECHNICAL DATA IW4028B BCD-to-Decimal Decoder High-Voltage Silicon-Gate CMOS The IW4028B types are BCD-to-decimal or binary-to-octal decoders consisting of buffering on all 4 inputs, decoding-logic gates, and 10 output buffers. A BCD code applied to the four inputs, A0 to A3 results in a high level at the selected one of 10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A0 through A2 is decoded in octal code at output 0 to7 if A3="0". High drive capability is provided at all outputs to enhance dc and dynamic performance in high fan-out applications. * BCD-to-decimal decoding or binary-to-octal decoding * Operating Voltage Range: 3.0 to 18 V * Maximum input current of 1 A at 18 V over full package-temperature range; 100 nA at 18 V and 25C * Noise margin (over full package temperature range): 1.0 V min @ 5.0 V supply 2.0 V min @ 10.0 V supply 2.5 V min @ 15.0 V supply ORDERING INFORMATION IW4028BN Plastic IW4028BD SOIC TA = -55 to 125 C for all packages PIN ASSIGNMENT w w w .d sh ta a ee u. t4 om c PIN 16=VCC PIN 8= GND 1 www..com LOGIC DIAGRAM IW4028B MAXIMUM RATINGS* Symbol VCC VIN VOUT IIN PD 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 Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Power Dissipation per Output Transistor Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) Value -0.5 to +20 -0.5 to VCC +0.5 -0.5 to VCC +0.5 10 750 500 100 -65 to +150 260 Unit V V V mA mW 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 Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Operating Temperature, All Package Types Min 3.0 0 -55 Max 18 VCC +125 Unit V V C 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 IW4028B DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol VIH Parameter Minimum High-Level Input Voltage Maximum Low Level Input Voltage Minimum High-Level Output Voltage Maximum Low-Level Output Voltage Maximum Input Leakage Current Maximum Quiescent Supply Current (per Package) Minimum Output Low (Sink) Current Test Conditions VOUT= 0.5 V or VCC - 0.5V VOUT= 1.0 V or VCC - 1.0 V VOUT= 1.5 V or VCC - 1.5V VOUT= 0.5 V or VCC - 0.5V VOUT= 1.0 V or VCC - 1.0 V VOUT= 1.5 V or VCC - 1.5V VIN=GND or VCC V 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 18 5.0 10 15 20 5.0 10 15 5.0 5.0 10 15 Guaranteed Limit -55C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 0.1 5 10 20 100 0.64 1.6 4.2 -2 -0.64 -1.6 -4.2 25C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 0.1 5 10 20 100 0.51 1.3 3.4 -1.6 -0.51 -1.3 -3.4 125 C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 1.0 150 300 600 3000 0.36 0.9 2.4 mA -1.15 -0.36 -0.9 -2.4 Unit V VIL V VOH V VOL VIN=GND or VCC V IIN ICC VIN= GND or VCC VIN= GND or VCC A A IOL VIN= GND or VCC UOL=0.4 V UOL=0.5 V UOL=1.5 V mA IOH Minimum Output VIN= GND or VCC High (Source) Current UOH=2.5 V UOH=4.6 V UOH=9.5 V UOH=13.5 V 3 IW4028B AC ELECTRICAL CHARACTERISTICS (CL=50pF, RL=200k, Input tr=tf=20 ns) VCC Symbol tPHL, tPLH Parameter Maximum Propagation Delay, Input A to Output Y (Figure 1) Maximum Output Transition Time, Any Output (Figure 1) Maximum Input Capacitance V 5.0 10 15 5.0 10 15 350 160 120 200 100 80 Guaranteed Limit -55C 25C 350 160 120 200 100 80 7.5 125C 700 320 240 400 200 160 Unit ns tTHL, tTLH ns CIN pF FUNCTION TABLE Inputs A3 L L L L L L L L H H H H H H H H A2 L L L L H H H H L L L L H H H H A1 L L H H L L H H L L H H L L H H A0 L H L H L H L H L H L H L H L H Y0 H L L L L L L L L L L L L L L L Y1 L H L L L L L L L L L L L L L L Y2 L L H L L L L L L L L L L L L L Y3 L L L H L L L L L L L L L L L L Outputs Y4 L L L L H L L L L L L L L L L L Y5 L L L L L H L L L L L L L L L L Y6 L L L L L L H L L L L L L L L L Y7 L L L L L L L H L L L L L L L L Y8 L L L L L L L L H L L L L L L L Y9 L L L L L L L L L H L L L L L L 4 IW4028B Figure 1. Switching Waveforms EXPANDED LOGIC DIAGRAM 5 IW4028B N SUFFIX PLASTIC (MS - 001BB) A 16 9 B 1 8 Dimensions, mm Symbol A B MIN 18.67 6.10 0.36 1.14 2.54 7.62 0 2.92 7.62 0.20 0.38 10 3.81 8.26 0.36 MAX 19.69 7.11 5.33 0.56 1.78 F L C D F C -T- SEATING PLANE N G D 0.25 (0.010) M T K M H J G H J K L M N NOTES: 1. imensions "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 - 012AC) A 16 9 Dimensions, mm Symbol. MIN 9.80 3.80 1.35 0.33 0.40 1.27 5.72 0 0.10 0.19 5.80 0.25 8 0.25 0.25 6.20 0.50 MAX 10.0 4.00 1.75 0.51 1.27 B P H A B C C R x 45 1 G 8 D F G -TD 0.25 (0.010) M T C M K SEATING PLANE J F M 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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