Overview
The 74LVCH244APW-Q100J is an octal non-inverting buffer/line driver with 3-state outputs, produced by Nexperia USA Inc. This device is designed to operate in a wide range of supply voltages from 1.2 V to 3.6 V, making it versatile for various electronic applications. It features two output enable inputs (1OE and 2OE) that control the 3-state outputs, allowing the device to be used as two 4-bit buffers or one 8-bit buffer. The 74LVCH244APW-Q100J is particularly suited for mixed 3.3 V and 5 V environments due to its ability to accept input voltages up to 5.5 V and its compatibility with TTL levels.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVCH244APW-Q100 | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 175 | 8 | low | -40~125 | 101 | 45 | TSSOP20 |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low-power consumption
- Direct interface with TTL levels
- Inputs accept voltages up to 5.5 V
- High-impedance when VCC = 0 V
- Bus hold on all data inputs, eliminating the need for external pull-up resistors
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
- IOFF circuitry for partial power-down mode operation and backflow current protection
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V
- Qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) for automotive applications
Applications
The 74LVCH244APW-Q100J is suitable for a variety of applications across different industries, including:
- Automotive systems, particularly those requiring AEC-Q100 compliance
- Industrial control systems
- Computing and networking equipment
- Consumer electronics
- Mobile and wearable devices
- Mixed 3.3 V and 5 V environments where signal translation is necessary
Q & A
- What is the supply voltage range of the 74LVCH244APW-Q100J?
The supply voltage range is from 1.2 V to 3.6 V.
- What is the maximum output drive capability of the device?
The maximum output drive capability is ± 24 mA.
- What is the maximum operating frequency of the device?
The maximum operating frequency is 175 MHz.
- Does the device support mixed 3.3 V and 5 V environments?
Yes, it can accept input voltages up to 5.5 V and operate in mixed 3.3 V and 5 V environments.
- What is the purpose of the bus hold feature on the data inputs?
The bus hold feature eliminates the need for external pull-up resistors to hold unused inputs.
- Is the device qualified for automotive applications?
Yes, it is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- What type of ESD protection does the device have?
The device has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range of the device?
The operating temperature range is from -40 °C to +125 °C.
- What package type is the 74LVCH244APW-Q100J available in?
The device is available in a TSSOP20 package.
- Does the device support partial power-down mode operation?
Yes, it supports partial power-down mode operation with IOFF circuitry.
- What is the purpose of the Schmitt-trigger action at the inputs?
The Schmitt-trigger action makes the circuit tolerant of slower input rise and fall times.
