Overview
The SN74AHCT08QPWRQ1 is a quadruple 2-input positive-AND gate integrated circuit produced by Texas Instruments. This device is part of the SN74AHCT08Q-Q1 family and is specifically packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package). It is designed using the EPIC™ (enhanced-performance implanted CMOS) process, which enhances its performance and reliability. The device is qualified for automotive applications and features TTL-voltage compatible inputs, allowing for voltage translation from 3.3 V to 5 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | -0.5 | 7 | V | |
| VI Input Voltage Range | -0.5 | 7 | V | |
| VO Output Voltage Range | -0.5 | VCC + 0.5 | V | |
| tPLH Propagation Delay (A or B to Y) | 5 | 6.9 | 8 | ns (CL = 15 pF) |
| tPHL Propagation Delay (A or B to Y) | 5 | 6.9 | 8 | ns (CL = 15 pF) |
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | TSSOP (PW) | |||
| Package Size | 5.00mm × 6.4mm |
Key Features
- Qualified for automotive applications
- EPIC™ (enhanced-performance implanted CMOS) process
- TTL-voltage compatible inputs, allowing up-translation from 3.3 V to 5 V
- Low drive with slow rise and fall times to reduce output ringing
- High impedance inputs when VCC = 0 V
- Latch-up performance exceeds 250mA per JESD 17
Applications
The SN74AHCT08QPWRQ1 is suitable for various bus-interface type applications where output ringing is a concern. It can be used to combine power good signals, enable signals, and in any scenario where low-noise outputs are necessary. The device's ability to translate voltages from 3.3 V to 5 V makes it versatile in mixed-voltage systems.
Q & A
- What is the primary function of the SN74AHCT08QPWRQ1?
The SN74AHCT08QPWRQ1 is a quadruple 2-input positive-AND gate, performing the Boolean function Y = A AND B in positive logic.
- What are the package options available for this device?
The device is available in SOIC (D), TSSOP (PW), and WQFN (BQA) packages.
- What is the operating temperature range of the SN74AHCT08QPWRQ1?
The operating temperature range is from -40°C to 125°C.
- What are the recommended power supply bypass capacitors for this device?
A 0.1 μF capacitor is recommended for single VCC pins, and 0.01 μF or 0.022 μF for each power pin if multiple VCC pins are used. It is also acceptable to use a combination of capacitors (e.g., 0.1 μF and 1 μF in parallel) to reject different frequencies of noise.
- Why are slow rise and fall times beneficial in this device?
The slow rise and fall times reduce output ringing and minimize overshoot and undershoot on the outputs, which is crucial in applications where noise needs to be minimized.
- Can the SN74AHCT08QPWRQ1 handle inputs below 5 V?
- What is the significance of the EPIC™ process used in this device?
The EPIC™ (enhanced-performance implanted CMOS) process enhances the device's performance and reliability.
- How many AND gates are included in the SN74AHCT08QPWRQ1?
The device includes four 2-input positive-AND gates.
- What is the latch-up performance of the SN74AHCT08QPWRQ1?
The latch-up performance exceeds 250mA per JESD 17.
- What precautions should be taken when handling the SN74AHCT08QPWRQ1?
The device can be damaged by ESD, so it should be handled with appropriate precautions to prevent electrostatic discharge.
