Overview
The 74LVC244ADB,118 from Nexperia USA Inc. is an 8-bit buffer/line driver with 3-state outputs. This device can be utilized as two 4-bit buffers or one 8-bit buffer, making it versatile for various applications. It features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. This component is designed to operate in mixed 3.3 V and 5 V environments, thanks to its ability to have inputs driven from either voltage level. Additionally, the device includes Schmitt-trigger action at all inputs, making it tolerant of slower input rise and fall times.
Key Specifications
| Parameter | Value |
|---|---|
| Type | Octal buffer/line driver; 3-state |
| Package | 20-SSOP (0.209", 5.30mm Width) |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | Push-Pull |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 1.2 V ~ 3.6 V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low-power consumption
- Direct interface with TTL levels
- Overvoltage tolerant inputs to 5.5 V
- IOFF circuitry provides partial Power-down mode operation
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
- Bus hold on all data inputs (74LVCH244A only)
- Complies with JEDEC standards: JESD8-7A, JESD8-5A, JESD8-C/JESD36
Applications
The 74LVC244ADB,118 is suitable for a variety of applications, including:
- Mixed 3.3 V and 5 V environments, acting as translators between different voltage levels.
- Partial power-down applications, utilizing the IOFF circuitry to prevent backflow current.
- Automotive, industrial, and consumer electronics where low power consumption and high reliability are crucial.
- Systems requiring buffer or line driver functions with 3-state outputs.
Q & A
- What is the primary function of the 74LVC244ADB,118?
The primary function is to act as an 8-bit buffer/line driver with 3-state outputs.
- What are the supply voltage ranges for this device?
The supply voltage range is from 1.2 V to 3.6 V.
- Can this device operate in mixed voltage environments?
Yes, it can operate in mixed 3.3 V and 5 V environments.
- What is the purpose of the IOFF circuitry?
The IOFF circuitry disables the output to prevent backflow current during partial power-down applications.
- What type of protection does the device have against ESD?
The device has ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).
- What is the operating temperature range for this device?
The operating temperature range is from -40°C to 125°C.
- What package type is the 74LVC244ADB,118 available in?
The device is available in a 20-SSOP package.
- Does the device support bus hold on data inputs?
Yes, but this feature is only available on the 74LVCH244A version.
- What are the output current capabilities of the device?
The device can handle output currents of 24mA for both high and low states.
- Is the device compliant with any specific standards?
Yes, it complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
