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Part: IW4028BN
Category:
Logic
Description: Bcd-to-decimal Decoder16
Company: IK Semiconductor
Datasheet: Download IW4028BN datasheet File size : 704 kB
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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 µA at 18 V over full packagetemperature range; 100 nA at 18 V and 25°C · 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
LOGIC DIAGRAM
PIN 16=VCC PIN 8= GND
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IW4028B
MAXIMUM RATINGS*
Symbol VCC VIN V OUT 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 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C
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 M in 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.
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IW4028B
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC Symbol VIH Parameter Minimum High-Level Input Voltage 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 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 -55°C 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 25°C 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
Maximum Low -Level VOUT= 0.5 V or VCC - 0.5V Input Voltage VOUT= 1.0 V or VCC - 1.0 V VOUT= 1.5 V or VCC - 1.5V Minimum High-Level Output Voltage Maximum Low-Level Output Voltage Maximum Input Leakage Current Maximum Quiescent Supply Current (per Package) VIN=GND or VCC
V
V OH
V
V OL
VIN=GND or VCC
V
IIN ICC
VIN= GND or VCC VIN= GND or VCC
µA µA
I OL
Minimum Output Low VIN= GND or VCC (Sink) Current UOL=0.4 V UOL=0.5 V UOL=1.5 V Minimum Output VIN= GND or VCC High (Source) Current UOH=2.5 V U OH = 4 . 6 V U OH = 9 . 5 V U OH = 1 3 . 5 V
mA
I OH
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