SN74HC148D Texas Instruments In Stock
SN74HC148D is a high-speed CMOS 8-to-3 priority encoder by Texas Instruments. Key specs: 8 active-low inputs, 3-bit binary output, 2V–6V supply voltage, 74HC logic family. From $0.2599, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2599(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HC148D?
- 8-to-3 line priority encoder with active-low inputs and outputs
- Wide supply voltage range: 2V to 6V for flexible system design
- High-speed CMOS technology with low power consumption
- Cascadable design with enable input (EI) and group signal output (GS)
- Compatible with TTL logic levels and available in SOIC-16 package
What is SN74HC148D used for?
The SN74HC148D is widely used in keyboard encoding systems, interrupt priority management, and data multiplexing applications. It is suitable for microcontroller interface circuits where multiple input signals must be prioritized and encoded into binary form. This device is commonly found in industrial control systems, consumer electronics, and embedded designs requiring efficient input line reduction.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74HC148D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74HC148D and what does it do?
The SN74HC148D is an 8-to-3 line priority encoder from Texas Instruments. It encodes eight active-low inputs into a 3-bit binary output, where the highest-priority active input determines the output code. It operates from 2V to 6V supply voltage and is designed for high-speed CMOS applications.
What are the typical applications for the SN74HC148D?
The SN74HC148D is commonly used in keyboard scanning circuits, interrupt controllers, data compression systems, and priority arbitration logic. It simplifies designs that require identifying the highest-priority active signal among up to eight inputs, making it ideal for embedded systems and industrial control applications.
Can the SN74HC148D be cascaded for more than 8 inputs?
Yes, the SN74HC148D includes an Enable Input (EI) and a Group Signal (GS) output specifically to support cascading multiple devices. By connecting the GS output of a lower-priority device to the EI of a higher-priority device, you can expand the encoder to handle 16 or more input lines.
What package is the SN74HC148D available in and how much does it cost?
The SN74HC148D is available in a 16-pin SOIC (D) surface-mount package, which is compact and suitable for automated PCB assembly. It is priced from $0.2599 per unit and is in stock with worldwide shipping available.
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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.
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