SN74HC148DR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74HC148DR is an 8-line to 3-line priority encoder IC from Texas Instruments. It features active-low inputs and outputs, 50 pF load capacitance, and 5.2 mA output sink current. Available in a 16-pin SOIC package. From $0.2179 with in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC148DR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2179(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-line to 3-line priority encoding with active-low inputs and outputs for simplified logic interfacing
- Supports cascading multiple devices for expanding input capacity beyond 8 lines
- HC/UH CMOS logic family offering wide voltage range (2V–6V) and low power consumption
- 16-pin SOIC (R-PDSO-G16) package with 50 pF load capacitance and 5.2 mA sink current
- RoHS-compliant (Pb-free) construction suitable for industrial and consumer applications
Applications
The SN74HC148DR is widely used in keyboard and keypad encoding circuits where multiple input lines must be prioritized and converted to binary output codes. It is also applied in interrupt priority controllers, data multiplexing systems, and industrial control equipment requiring compact 8-to-3 line encoding. Its cascadable architecture makes it ideal for larger encoding schemes in embedded systems and digital logic designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | ENCODER |
| Max I(ol) | 0.0052A |
| Number of Bits | 8 |
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 49ns |
| Propagation Delay (tpd) | 240ns |
| 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) | 30 |
| ## SN74HC148DR Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC148DR:
suggested
suggested
suggested
Frequently Asked Questions
What is the SN74HC148DR and what does it do?
The SN74HC148DR is an 8-line to 3-line priority encoder IC from Texas Instruments. It accepts up to 8 active-low input lines and encodes the highest-priority active input into a 3-bit binary output. It operates in the HC/UH CMOS family with a supply voltage range of 2V to 6V and is housed in a 16-pin SOIC package.
What are the key electrical specifications of the SN74HC148DR?
Key specs include a maximum output sink current (I(ol)) of 5.2 mA, a load capacitance (CL) of 50 pF, and CMOS HC/UH logic family compatibility. It supports a wide supply voltage range (2V–6V), comes in a 16-pin R-PDSO-G16 SOIC package, and is RoHS-compliant (Pb-free, JESD-609 code e4).
Can SN74HC148DR devices be cascaded for more than 8 inputs?
Yes, multiple SN74HC148DR devices can be cascaded using the EI (enable input) and GS/EO outputs to expand the number of encoded input lines beyond 8. This feature is commonly used in large keyboard matrices, interrupt controllers, and industrial systems requiring more than 8 priority-encoded inputs.
What are typical applications for the SN74HC148DR?
The SN74HC148DR is used in keyboard and keypad encoding, interrupt priority controllers, data selectors, and digital logic systems requiring 8-to-3 line encoding. Its active-low I/O and cascading capability make it suitable for embedded control systems, industrial equipment, and consumer electronics designs.
Where can I buy SN74HC148DR and what is the price?
The SN74HC148DR is available from authorized distributors and global electronic component suppliers starting from approximately $0.2179 per unit. It is in stock for worldwide shipping, and bulk pricing is available for higher quantities. You can request a quote directly on FindMyChip for competitive pricing.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.2791 | $27.91 |
| 250+ | $0.2616 | $65.40 |
| 500+ | $0.2441 | $122.05 |
| 100000+ | $0.2179 | $21790.00 |
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