Overview
The SN74HC253NSR, produced by Texas Instruments, is a Dual 4-Line to 1-Line Data Selectors/Multiplexers with 3-State Outputs. This integrated circuit is part of the 74HC series and is designed to select one of four data sources and direct the selected data to a single output line. The device features strobe-controlled 3-state outputs, making it versatile for various digital logic applications.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage Range | 2 V to 6 V | V | |
| Operating Temperature Range | -40°C to 85°C | °C | |
| Propagation Delay (tpd) | 16 ns to 41 ns | ns | VCC = 6 V, CL = 150 pF |
| Output Drive | ±6 mA at 5 V | mA | |
| Input Current | 1 μA max | μA | |
| Power Dissipation Capacitance per Multiplexer | 45 pF | pF | No load |
| Package Type | SOIC-16 | ||
| Package Dimensions | 9.90 mm × 3.90 mm | mm |
Key Features
- 3-State version of the 'HC153, allowing for high-impedance output states
- Wide operating voltage range of 2 V to 6 V
- High-current inverting outputs capable of driving up to 15 LSTTL loads
- Low power consumption with a maximum ICC of 80 μA
- Typical propagation delay of 9 ns
- ±6-mA output drive at 5 V
- Low input current of 1 μA max
- Strobe-controlled (OE) 3-state outputs
- Capable of multiplexing from n lines to one line and performing parallel-to-serial conversion
Applications
- Digital logic circuits requiring data selection and multiplexing
- Computer and peripheral interfaces
- Data processing and transmission systems
- Industrial control systems
- Telecommunication equipment
Q & A
- What is the operating voltage range of the SN74HC253NSR?
The operating voltage range is 2 V to 6 V.
- What is the typical propagation delay of the SN74HC253NSR?
The typical propagation delay is around 9 ns.
- How many data sources can the SN74HC253NSR select from?
The device can select from four data sources.
- What is the maximum output drive current at 5 V?
The maximum output drive current at 5 V is ±6 mA.
- What is the package type of the SN74HC253NSR?
The package type is SOIC-16.
- What is the operating temperature range of the SN74HC253NSR?
The operating temperature range is -40°C to 85°C.
- Can the SN74HC253NSR perform parallel-to-serial conversion?
- What is the power dissipation capacitance per multiplexer?
The power dissipation capacitance per multiplexer is 45 pF.
- How many LSTTL loads can the high-current inverting outputs drive?
The high-current inverting outputs can drive up to 15 LSTTL loads.
- What is the maximum input current of the SN74HC253NSR?
The maximum input current is 1 μA.
