SN74HC42D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC42D is a high-speed CMOS 1-of-10 decimal decoder/driver IC from Texas Instruments, featuring 10 active-low outputs, 2V to 6V operating voltage, and 50pF load capacitance in a 16-Pin SOIC package. From $0.2053 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC42D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2053(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HC42D?
- 1-of-10 BCD-to-decimal decoder with 10 active-low outputs for direct display or logic driving
- Wide supply voltage range of 2V to 6V, compatible with standard HC/UH CMOS logic families
- 16-Pin SOIC (PDSO-G16) package with 50pF load capacitance for high-density PCB integration
- Inverting output architecture with standard input conditioning for noise-immune operation
- RoHS-compliant (JESD-609 Code e4) with 0 years to end-of-life, ensuring long-term availability
What is SN74HC42D used for?
The SN74HC42D is widely used in digital systems requiring BCD-to-decimal decoding, such as driving 7-segment LED/LCD display controllers and multiplexed keypad matrices. It is ideal for programmable logic controllers (PLCs), industrial control panels, and embedded systems where address decoding or channel selection from a 4-bit BCD input is needed. Its low output sink current (5.2mA) also makes it suitable for directly driving indicator LEDs and small signal loads in consumer electronics and instrumentation equipment.
What are the specifications of SN74HC42D?
| YTEOL | 0 |
| Family | HC/UH |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | DECIMAL DECODER/DRIVER |
| Max I(ol) | 0.0052A |
| Number of Bits | 10 |
| Number of Functions | 1 |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 38ns |
| Propagation Delay (tpd) | 190ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mexico |
Where can I find the SN74HC42D datasheet?
SN74HC42D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74HC42D?
Compatible alternatives and drop-in replacements for SN74HC42D:
Frequently Asked Questions
What is the operating voltage range of the SN74HC42D?
The SN74HC42D operates over a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V CMOS logic systems. This wide range provides design flexibility for battery-powered and industrial applications.
What are the typical applications for the SN74HC42D decoder?
The SN74HC42D is commonly used for BCD-to-decimal decoding in display drivers, keyboard encoders, address decoders, and multiplexed I/O expansion circuits. Its 10 active-low outputs are ideal for driving 7-segment displays, indicator LEDs, and relay drivers in industrial control and consumer electronics.
What package does the SN74HC42D come in and what is its pin count?
The SN74HC42D is available in a 16-pin SOIC (Small Outline Integrated Circuit) package with JESD-30 code R-PDSO-G16. This surface-mount package is compact and well-suited for high-density PCB designs in space-constrained applications.
What is the maximum output sink current of the SN74HC42D?
The SN74HC42D has a maximum output low current (I_ol) of 5.2mA (0.0052A). This level is sufficient for directly driving LEDs, small signal transistors, or logic inputs in most standard digital circuit designs.
Is the SN74HC42D RoHS compliant?
Yes, the SN74HC42D carries a JESD-609 Code of e4, indicating it is a lead-free, RoHS-compliant component. It is suitable for use in environmentally regulated products sold in the EU and other markets requiring hazardous substance restrictions.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7518 | $0.75 |
| 8+ | $0.6265 | $5.01 |
| 25+ | $0.4511 | $11.28 |
| 520+ | $0.3783 | $196.72 |
| 940+ | $0.2133 | $200.50 |
| 1220+ | $0.2053 | $250.47 |
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