Overview
The MC14504B, produced by onsemi, is a hex non-inverting level shifter that utilizes CMOS technology. This component is designed to shift TTL (Transistor-Transistor Logic) signals to CMOS (Complementary Metal-Oxide-Semiconductor) logic levels, and it can also translate between different CMOS logic levels. The level shifter operates with CMOS supply voltages ranging from 5 to 15 volts, making it versatile for various applications. The VCC level sets the input signal levels, while the VDD level selects the output voltage levels, allowing for both up and down level translation by adjusting the power supply levels.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| DC Supply Voltage Range | VDD | -0.5 | - | 18.0 | V |
| Input or Output Voltage Range (DC or Transient) | Vin, Vout | -0.5 | - | VDD + 0.5 | V |
| Input or Output Current (DC or Transient) per Pin | Iin, Iout | -10 | - | 10 | mA |
| Power Dissipation per Package | PD | - | - | 500 | mW |
| Ambient Temperature Range | TA | -55 | - | 125 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Lead Temperature (8-Second Soldering) | TL | - | - | 260 | °C |
| Output Voltage “0” Level | VOL | 0.05 | 0.05 | 0.05 | V |
| Output Voltage “1” Level | VOH | 4.95 | 9.95 | 14.95 | V |
| Propagation Delay, High to Low | tPHL | 140 | 280 | ns | |
| Propagation Delay, Low to High | tPLH | 170 | 340 | ns |
Key Features
- Translates from TTL to CMOS or from one CMOS logic level to another.
- Input threshold can be shifted for TTL compatibility.
- No sequencing required on power supplies or inputs for power up or power down.
- Operates over a wide voltage range: 3 to 18 Vdc for VDD and VCC.
- Diode protected inputs to VSS.
- Capable of driving two low-power TTL loads or one low-power Schottky TTL load.
Applications
The MC14504B is suitable for a variety of applications where level translation between different logic families is necessary. This includes:
- Interface between TTL and CMOS circuits.
- Level translation in mixed-signal designs.
- Industrial control systems where different voltage levels are used.
- Automotive and other applications requiring robust level shifting capabilities.
Q & A
- What is the primary function of the MC14504B?
The MC14504B is a hex non-inverting level shifter designed to translate TTL signals to CMOS logic levels or between different CMOS logic levels.
- What is the operating voltage range for the MC14504B?
The MC14504B operates with CMOS supply voltages ranging from 5 to 15 volts.
- How does the MC14504B handle input and output voltage levels?
The VCC level sets the input signal levels, while the VDD level selects the output voltage levels.
- Does the MC14504B require sequencing on power supplies or inputs?
No, the MC14504B does not require sequencing on power supplies or inputs for power up or power down.
- What kind of protection does the MC14504B have on its inputs?
The inputs are diode protected to VSS.
- What is the propagation delay for the MC14504B?
The propagation delay ranges from 140 ns to 340 ns depending on the operating mode and voltage levels.
- Can the MC14504B drive TTL loads?
Yes, the MC14504B is capable of driving two low-power TTL loads or one low-power Schottky TTL load.
- What are the ambient and storage temperature ranges for the MC14504B?
The ambient temperature range is -55°C to 125°C, and the storage temperature range is -65°C to 150°C.
- Is the MC14504B RoHS compliant?
Yes, the MC14504B is Pb-free and RoHS compliant.
- What are some common applications for the MC14504B?
Common applications include interface between TTL and CMOS circuits, level translation in mixed-signal designs, and industrial control systems.
