Overview
The SN74HC148DRG4 is an 8-input priority encoder produced by Texas Instruments. This integrated circuit is designed to encode eight data lines into a 3-line binary (octal) output, ensuring that only the highest-order data line is encoded. The device features input enable (EI) and output enable (EO) signals, which facilitate cascading multiple stages without the need for additional external circuitry.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | |
| Pins | 16 | |
| Operating Temperature Range | -40 to 85 | °C |
| Voltage Supply Range | 2 to 6 | V |
| Low Power Consumption (ICC) | 80 µA max | |
| Typical Propagation Delay (tpd) | 16 ns | |
| Output Drive at 5V | ±4 mA | |
| Input Current | 1 µA max | |
| Output Load Capability | Up to 10 LSTTL loads |
Key Features
- Wide operating voltage range of 2V to 6V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical propagation delay of 16ns
- ±4-mA output drive at 5V
- Low input current of 1µA max
- Encode eight data lines to 3-line binary (octal)
- Input enable (EI) and output enable (EO) signals for cascading multiple stages
Applications
- n-Bit encoding
- Code converters and generators
Q & A
- What is the primary function of the SN74HC148DRG4?
The SN74HC148DRG4 is an 8-input priority encoder that encodes eight data lines into a 3-line binary (octal) output.
- What is the operating voltage range of the SN74HC148DRG4?
The operating voltage range is from 2V to 6V.
- How many LSTTL loads can the outputs of the SN74HC148DRG4 drive?
The outputs can drive up to 10 LSTTL loads.
- What is the typical propagation delay of the SN74HC148DRG4?
The typical propagation delay is 16ns.
- What is the maximum power consumption of the SN74HC148DRG4?
The maximum power consumption is 80 µA.
- Can the SN74HC148DRG4 be cascaded with other stages?
- What is the operating temperature range of the SN74HC148DRG4?
The operating temperature range is from -40°C to 85°C.
- What type of package does the SN74HC148DRG4 come in?
The device comes in a 16-pin SOIC (D) package.
- What are some common applications of the SN74HC148DRG4?
Common applications include n-Bit encoding and code converters and generators.
- Is the SN74HC148DRG4 RoHS compliant?
