Overview
The MC74LCX16244 is a high-performance, non-inverting 16-bit buffer produced by onsemi. This device operates from a supply voltage range of 2.3 to 3.6 volts and is designed for low-voltage CMOS applications. It features 5 V-tolerant inputs and outputs, making it compatible with both TTL and CMOS logic levels. The buffer is nibble-controlled, with each nibble having separate Output Enable inputs that can be tied together for full 16-bit operation. This component is suitable for memory address driving and various TTL level bus-oriented applications, offering high performance with maximum propagation delays of 4.5 ns.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.3 | - | 3.6 | V |
| Input Voltage (VI) | 0 | - | 5.5 | V |
| Output Voltage (VO) | 0 | - | VCC + 0.5 | V |
| Propagation Delay (tPLH/tPHL) | 1.5 | - | 4.5 | ns |
| Output Enable Time (tPZH/tPHZ) | 1.5 | - | 5.4 | ns |
| Output Disable Time (tPZL/tPLZ) | 1.5 | - | 6.5 | ns |
| High Level Output Current (IOH) | -24 | - | - | mA |
| Low Level Output Current (IOL) | 24 | - | - | mA |
| Operating Temperature (TA) | -40 | - | 85 | °C |
Key Features
- Designed for 2.3 V to 3.6 V VCC operation
- 5.0 V tolerant inputs and outputs
- High impedance TTL compatible inputs and TTL compatible outputs
- Supports live insertion and withdrawal
- IOFF specification guarantees high impedance when VCC = 0 V
- LVTTL and LVCMOS compatible
- 24 mA balanced output sink and source capability
- Near zero static supply current in all three logic states
- ESD performance: Human Body Model >2000 V, Machine Model >200 V
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
The MC74LCX16244 is suitable for various high-performance applications, including memory address driving and all TTL level bus-oriented transceiver applications. Its compatibility with both TTL and CMOS logic levels makes it versatile for use in different system designs.
Q & A
- What is the operating voltage range of the MC74LCX16244?
The MC74LCX16244 operates from a supply voltage range of 2.3 to 3.6 volts. - What is the maximum propagation delay of the MC74LCX16244?
The maximum propagation delay is 4.5 ns. - Is the MC74LCX16244 compatible with 5 V TTL logic?
Yes, the MC74LCX16244 has 5.0 V tolerant inputs and outputs, making it compatible with 5 V TTL logic. - What is the output current capability of the MC74LCX16244?
The output current capability is 24 mA for both sink and source. - Is the MC74LCX16244 RoHS compliant?
Yes, the MC74LCX16244 is Pb-free, halogen-free/BFR-free, and RoHS compliant. - What is the operating temperature range of the MC74LCX16244?
The operating temperature range is from -40°C to 85°C. - How is the output enable controlled in the MC74LCX16244?
The output enable is controlled by the Output Enable (OEn) inputs, which when HIGH, disable the outputs by placing them in a HIGH Z condition. - Is the MC74LCX16244 suitable for live insertion and withdrawal?
Yes, the MC74LCX16244 supports live insertion and withdrawal. - What is the ESD performance of the MC74LCX16244?
The ESD performance is >2000 V for the Human Body Model and >200 V for the Machine Model. - Can the MC74LCX16244 be used in memory address driving applications?
Yes, the MC74LCX16244 is suitable for memory address driving and other TTL level bus-oriented applications.
