CD74HC147PWRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC147PWRG4 is a high-speed CMOS 10-to-4 line priority encoder from Texas Instruments, encoding nine active-low inputs into a 4-bit BCD output with 50 pF load capacitance in a 16-pin TSSOP package. It belongs to the HC/UH logic family and is fully RoHS compliant. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC147PWRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 9-to-4 line priority encoder reducing nine active-low inputs to a compact 4-bit BCD output for efficient digital encoding
- High-speed CMOS HC/UH family with 50 pF load capacitance, ensuring reliable performance in fast logic systems
- Compact 16-pin TSSOP package (R-PDSO-G16) enabling space-efficient PCB layouts in modern embedded designs
- Fully RoHS compliant with JESD-609 e4 Pb-free rating, meeting global environmental and manufacturing standards
Applications
The CD74HC147PWRG4 is used in digital systems requiring priority interrupt encoding, keyboard matrix decoding, and data compression circuits where multiple input signals must be reduced to a binary code. It is well suited for industrial controllers, embedded microcontroller interfaces, and programmable logic systems that need to identify and encode the highest-priority active input. Its TSSOP packaging and CMOS technology make it ideal for compact, low-power board designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | 9 TO 4 LINE PRIORITY ENCODER |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | ENCODER |
| Number of Bits | 9 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 50mA |
| 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 | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the CD74HC147PWRG4 do and how many inputs does it support?
The CD74HC147PWRG4 is a 10-to-4 line priority encoder that accepts nine active-low inputs and encodes the highest-priority asserted input into a 4-bit BCD output. It is designed for applications requiring priority arbitration among multiple digital input signals.
What is the load capacitance specification for the CD74HC147PWRG4?
The CD74HC147PWRG4 is specified with a load capacitance (CL) of 50 pF, which is consistent with the HC CMOS family standard. This ensures predictable switching performance when driving typical PCB trace loads in digital logic circuits.
What package does the CD74HC147PWRG4 use and is it RoHS compliant?
The CD74HC147PWRG4 is housed in a 16-pin TSSOP package (JESD-30 code R-PDSO-G16). It is fully RoHS compliant with JESD-609 code e4 (Pb-free), suitable for modern lead-free surface-mount assembly processes used in consumer and industrial electronics.
What are typical applications for a priority encoder like the CD74HC147PWRG4?
Typical applications include keyboard encoders, interrupt priority controllers, memory address decoders, and data multiplexing systems. The CD74HC147PWRG4 is particularly useful in embedded systems where multiple interrupt or input sources must be encoded to identify the most urgent signal for the processor.
Are there compatible alternatives to the CD74HC147PWRG4?
Compatible alternatives include the SN74HC147 series from Texas Instruments and the MM74HC147 from other manufacturers. The CD74HCT147 offers TTL-level input compatibility for mixed-logic designs. Always verify input voltage levels, pinout, and package compatibility when selecting a substitute component.
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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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