Overview
The SN74HCS238PWR is a 3-to-8 line decoder/demultiplexer produced by Texas Instruments. This device is designed with Schmitt-trigger inputs and operates within a wide voltage range of 2 V to 6 V. It features low power consumption and is suitable for various applications, including memory device selection and data routing. The SN74HCS238PWR is packaged in a 16-pin TSSOP (PW) package and has an extended ambient temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | - |
| Pins | 16 | - |
| Operating Temperature Range | –40 to 125 | °C |
| Operating Voltage Range | 2 to 6 | V |
| Typical ICC (Supply Current) | 100 nA | nA |
| Typical Input Leakage Current | ±100 nA | nA |
| Output Drive at 6 V | ±7.8 mA | mA |
| Input Capacitance | 5 pF | pF |
Key Features
- Wide operating voltage range: 2 V to 6 V
- Schmitt-trigger inputs allow for slow or noisy input signals
- Low power consumption with typical ICC of 100 nA
- Typical input leakage current of ±100 nA
- ±7.8-mA output drive at 6 V
- Extended ambient temperature range: –40°C to +125°C
- Balanced CMOS push-pull outputs
Applications
- Memory device selection with shared data bus
- Reducing the required number of outputs for chip select applications
- Data routing
- Controlling multiple devices operating on a shared data bus
- Solid state memory applications where multiple devices need to be read or written to with a limited number of GPIO pins
Q & A
- What is the operating voltage range of the SN74HCS238PWR?
The operating voltage range is 2 V to 6 V. - What type of inputs does the SN74HCS238PWR have?
The device has Schmitt-trigger inputs. - What is the typical supply current (ICC) of the SN74HCS238PWR?
The typical ICC is 100 nA. - What is the output drive capability at 6 V?
The output drive capability is ±7.8 mA at 6 V. - What is the temperature range of the SN74HCS238PWR?
The device operates in the temperature range of –40°C to +125°C. - What type of outputs does the SN74HCS238PWR have?
The device has balanced CMOS push-pull outputs. - How many address select inputs does the SN74HCS238PWR have?
The device has three address select inputs (A2, A1, and A0). - What is the purpose of the strobe inputs on the SN74HCS238PWR?
The strobe inputs (G2, G1, and G0) are used to simplify cascading and facilitate demultiplexing. When any input strobe is active, all outputs are forced into the low state. - What is the typical input leakage current of the SN74HCS238PWR?
The typical input leakage current is ±100 nA. - What is the package type of the SN74HCS238PWR?
The device is packaged in a 16-pin TSSOP (PW) package.
