Overview
The 74LVT244AD is a high-performance BiCMOS octal buffer/line driver produced by NXP USA Inc. This device is designed for operation at 3.3 V and is ideal for driving bus lines in various electronic systems. It features two output enables, each controlling four of the 3-state outputs, making it versatile for different application needs. The 74LVT244AD is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 3), ensuring its reliability in automotive and other demanding environments.
Key Specifications
| Parameter | Value |
|---|---|
| VCC (V) | 2.7 - 3.6 |
| Logic Switching Levels | TTL |
| Output Drive Capability (mA) | +64, -32 |
| Maximum Frequency (MHz) | 150 |
| Number of Bits | 8 |
| Operating Temperature (°C) | -40 to +85 |
| Package Type | SO20 (SOT163-1) |
| ESD Protection | HBM: >2000 V, CDM: >1000 V |
Key Features
- Octal bus interface with 3-state buffers
- Two output enables (1OE, 2OE) controlling four outputs each
- Wide supply voltage range from 2.7 V to 3.6 V
- Overvoltage tolerant inputs to 5.5 V
- Direct interface with TTL levels
- BiCMOS technology for high speed and output drive
- IOFF circuitry for partial Power-down mode operation
- Bus hold data inputs eliminate the need for external pull-up resistors
- Live insertion and extraction permitted
- Power-up 3-state, no bus current loading when output is tied to 5 V bus
- Latch-up performance exceeds 500 mA per JESD 78 Class II Level B
Applications
The 74LVT244AD is suitable for a variety of applications, including automotive systems due to its AEC-Q100 (Grade 3) qualification. It is also used in general-purpose logic circuits, bus drivers, and line drivers in industrial, consumer, and communication systems where high-speed and reliable buffer operations are required.
Q & A
- What is the primary function of the 74LVT244AD?
The 74LVT244AD is an octal buffer/line driver designed for driving bus lines. - What is the operating voltage range of the 74LVT244AD?
The operating voltage range is from 2.7 V to 3.6 V. - What are the output drive capabilities of the 74LVT244AD?
The output drive capabilities are +64 mA and -32 mA. - Is the 74LVT244AD suitable for automotive applications?
Yes, it is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 3). - What is the maximum operating frequency of the 74LVT244AD?
The maximum operating frequency is 150 MHz. - What type of package does the 74LVT244AD come in?
The 74LVT244AD comes in a SO20 (SOT163-1) package. - Does the 74LVT244AD have ESD protection?
Yes, it has ESD protection with HBM >2000 V and CDM >1000 V. - Can the 74LVT244AD be used in live insertion and extraction?
Yes, it supports live insertion and extraction. - What is the operating temperature range of the 74LVT244AD?
The operating temperature range is from -40 °C to +85 °C. - Does the 74LVT244AD require external pull-up resistors for unused inputs?
No, it has bus hold data inputs that eliminate the need for external pull-up resistors.
