7442 BCD to Decimal Decoder 5V 28mA IC DIP-16

7442 BCD to Decimal Decoder 5V 28mA IC DIP-16 The 7442 BCD-to-Decimal Decoder is a combinational logic integrated circuit designed to decode Binary-Coded Decimal (BCD) inputs into corresponding decimal output lines. It accepts four input bits and activates one of ten output lines representing decimal digits 0 through 9, simplifying the implementation of decimal selection and control circuits. The IC uses active-low outputs, meaning the selected output goes LOW while the other valid decimal outputs remain HIGH. Its DIP-16 through-hole package is suitable for printed circuit boards, digital electronics projects, and educational experiments. The 7442 is a decoder rather than a BCD-to-seven-segment driver, so additional circuitry may be needed when connecting it to a seven-segment display. Features: Single 7-Segment to BCD Decoder. Outputs Directly Interface to CMOS, NMOS and TTL. Large Operating Voltage Range. Wide Operating Conditions. Specifications: Product Attribute Attribute Value Product: Decoders / Demultiplexers Number of Input Lines: 4 Input Number of Output Lines: 10 Output Propagation Delay Time: 30 ns Supply Voltage – Min: 4.75 V Supply Voltage – Max: 5.25 V Minimum Operating Temperature: 0 C Maximum Operating Temperature: + 70 C Mounting Style: Through Hole Package/Case: PDIP-16 Packaging: Tube Function: 4 to 10 BCD Height: 4.57 mm High Level Output Current: – 0.4 mA Input Voltage: 2.0 V to 0.8 V Length: 19.3 mm Logic Type: Decoder Low Level Output Current: 8 mA Maximum Clock Frequency: 35 MHz Number of Circuits: Dual Operating Supply Voltage: 5 V Operating Temperature Range: 0 C to + 70 C Output Current: 8 mA Output Voltage: + 0.4 V to + 0.5 V Subcategory: Logic ICs Supply Current – Max: 7 mA Pinout: Applications: BCD decoding circuits. Decimal digit selection. Digital control systems. Decimal counting circuits. Logic and switching applications. Educational electronics projects. Digital instrument interfaces. Package Included: 1 × 7442 BCD-to-Decimal Decoder IC, DIP-16. Documents: 7442 Datasheet

Features Single BCD to Decimal Decoder Standard Pin Configuration Operating Temperature to 70°C Standard TTL Switching Voltages Superseded, Not Recommended for New Designs Part Summary Manufacturer Various Manufacturer’s Part Number 7442 Manufacturer’s Web Site – Futurlec Part Number 7442 Department Integrated Circuits Category 74 Series RoHS Compliant – Package Type 14 Pin DIP Technical Data 7442 Datasheet Pin Description Pin Number Description 1 Decimal 0 Output 2 Decimal 1 Output 3 Decimal 2 Output 4 Decimal 3 Output 5 Decimal 4 Output 6 Decimal 5 Output 7 Decimal 6 Output 8 Ground 9 Decimal 7 Output 10 Decimal 8 Output 11 Decimal 9 Output 12 BCD D Input 13 BCD C Input 14 BCD B Input 15 BCD A Input 16 Vcc – Positive Supply Pin Layout Dimensional Drawing Technical Data Absolute Maximum Ratings Supply Voltage 7V Input Voltage 5.5V Operating Free Air Temperature 0°C to 70°C Storage Temperature Range -65°C to 150°C Recommended Operating Conditions Symbol Parameter Min Typ Max Units Vcc Supply Voltage 4.75 5 5.25 V Vih HIGH Level Input Voltage 2 V Vil LOW Level Input Voltage 0.8 V Ioh HIGH Level Output Current -0.4 mA Iol LOW Level Output Current 16 mA Ta Free Air Operating Temperature 0 70 °C Electrical Characteristics Symbol Parameter Conditions Min Typ Max Units Vi Input Clamp Voltage Vcc=Min Ii=-12mA -1.5 V Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4 V Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX 0.2 0.4 V Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V 1 mA Iih HIGH Level Input Current Vcc=Max Vi=2.4V 40 µA Iil LOW Level Input Current Vcc=Max Vi=0.4V -1.6 mA Ios Short Circuit Output Current Vcc=Max -18 -55 mA Icch Supply Current with Outputs HIGH Vcc=Max 4 8 mA Iccl Supply Current with Outputs LOW Vcc=Max 12 22 mA Switching Characteristics at Vcc=5V,Ta=25°C Symbol Parameter Conditions Min Typ Max Units tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R 22 nS tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R 15 nS