Overview
The NLV74HC244ADWR2G is an octal 3-state noninverting buffer/line driver/line receiver produced by ON Semiconductor. This device is part of the 74HC series, known for its high-speed CMOS logic. It is designed to be used in various bus-oriented systems, including 3-state memory address drivers, clock drivers, and other applications requiring high-speed data transfer.
The NLV74HC244ADWR2G is compatible with standard CMOS outputs and, with pull-up resistors, can also interface with LSTTL outputs. It features noninverting outputs and two active-low output enables, making it versatile for different logic circuits.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| DC Supply Voltage (VCC) | 2.0 | 6.0 | V |
| DC Input Voltage (VIN) | -0.5 | VCC + 0.5 | V |
| DC Output Voltage (VOUT) | -0.5 | VCC + 0.5 | V |
| Operating Free-Air Temperature (TA) | -55 | 125 | °C |
| Input Rise or Fall Time (tr, tf) | 0 | 1000 (at VCC = 2.0V), 500 (at VCC = 4.5V), 400 (at VCC = 6.0V) | ns |
| Maximum Propagation Delay (tPLH, tPHL) | 96 (at VCC = 2.0V), 50 (at VCC = 4.5V), 18 (at VCC = 6.0V) | - | ns |
| Maximum Output Transition Time (tTLH, tTHL) | 12 (at VCC = 4.5V), 15 (at VCC = 5.5V), 18 (at VCC = 5.5V) | - | ns |
| Maximum Input Capacitance (CIN) | - | 10 | pF |
| Maximum Three-State Output Capacitance (COUT) | - | 15 | pF |
Key Features
- Output Drive Capability: Can drive up to 15 LSTTL loads.
- Outputs Directly Interface to CMOS, NMOS, and TTL.
- Low Input Current: 1 μA.
- High Noise Immunity Characteristic of CMOS Devices.
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A.
- Chip Complexity: 136 FETs or 34 Equivalent Gates.
- Pb-Free, Halogen Free, and RoHS Compliant.
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements.
Applications
The NLV74HC244ADWR2G is designed for use in various bus-oriented systems, including:
- 3-state memory address drivers.
- Clock drivers.
- Other bus-oriented systems requiring high-speed data transfer.
- Level conversion for interfacing TTL or NMOS outputs to High-Speed CMOS inputs.
Q & A
- What is the operating voltage range of the NLV74HC244ADWR2G?
The operating voltage range is from 2.0 to 6.0 V for the HC version and 4.5 to 5.5 V for the HCT version.
- What is the maximum propagation delay for the NLV74HC244ADWR2G?
The maximum propagation delay varies by voltage: 96 ns at VCC = 2.0 V, 50 ns at VCC = 4.5 V, and 18 ns at VCC = 6.0 V.
- Can the NLV74HC244ADWR2G interface with LSTTL outputs?
Yes, with pull-up resistors, it can interface with LSTTL outputs.
- What is the maximum output transition time?
The maximum output transition time is 12 ns at VCC = 4.5 V, 15 ns at VCC = 5.0 V, and 18 ns at VCC = 5.5 V.
- Is the NLV74HC244ADWR2G RoHS compliant?
Yes, it is Pb-Free, Halogen Free, and RoHS Compliant.
- What is the chip complexity of the NLV74HC244ADWR2G?
The chip complexity is 136 FETs or 34 Equivalent Gates.
- Can the NLV74HC244ADWR2G be used in automotive applications?
Yes, it is AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements.
- What is the maximum input capacitance?
The maximum input capacitance is 10 pF.
- What is the maximum three-state output capacitance?
The maximum three-state output capacitance is 15 pF.
- What are the storage and junction temperatures for the NLV74HC244ADWR2G?
The storage temperature range is -65 to +150°C, and the junction temperature under bias is ±150°C.
