Overview
The MC14504B, including the MC14504BFEL variant, is a hex non-inverting level shifter designed using CMOS technology. This component is capable of shifting TTL (Transistor-Transistor Logic) signals to CMOS (Complementary Metal-Oxide-Semiconductor) logic levels, and it can also translate between different CMOS logic levels. The device operates with CMOS supply voltages ranging from 5 to 15 volts and allows for both up and down level translation by adjusting the power supply levels VDD and VCC. This flexibility makes it versatile for various logic level conversion needs in electronic systems.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| DC Supply Voltage Range (VCC) | VCC | -0.5 to +18.0 | V |
| DC Supply Voltage Range (VDD) | VDD | -0.5 to +18.0 | V |
| Input Voltage Range (DC or Transient) | Vin | -0.5 to +18.0 | V |
| Output Voltage Range (DC or Transient) | Vout | -0.5 to VDD + 0.5 | V |
| Input or Output Current (DC or Transient) per Pin | Iin, Iout | ±10 | mA |
| Power Dissipation, per Package | PD | 500 | mW |
| Ambient Temperature Range | TA | -55 to +125 | °C |
| Storage Temperature Range | Tstg | -55 to +150 | °C |
| Propagation Delay, High to Low (TTL – CMOS, VDD > VCC) | tPHL | 140 to 280 | ns |
| Propagation Delay, Low to High (TTL – CMOS, VDD > VCC) | tPLH | 160 to 340 | ns |
Key Features
- Translates from a low to a high voltage or from a high to a low voltage.
- 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.
- NLV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable.
- Pb-free and RoHS compliant.
Applications
The MC14504B is suitable for a variety of applications where logic level translation is necessary, including:
- Automotive systems requiring AEC-Q100 qualification.
- Industrial control systems where different logic levels are used.
- Embedded systems that need to interface between TTL and CMOS logic.
- Consumer electronics requiring level shifting between different voltage domains.
- Medical devices that need precise logic level translation.
Q & A
- What is the primary function of the MC14504B?
The MC14504B is a hex non-inverting level shifter that translates TTL signals to CMOS logic levels and can also translate between different CMOS logic levels.
- What is the operating voltage range for VDD and VCC?
The operating voltage range for both VDD and VCC is from 3 to 18 Vdc.
- 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.
- Is the MC14504B suitable for automotive applications?
- What is the maximum power dissipation per package?
The maximum power dissipation per package is 500 mW.
- What is the ambient temperature range for the MC14504B?
The ambient temperature range is from -55°C to +125°C.
- How many TTL loads can the MC14504B drive?
The MC14504B can drive two low-power TTL loads or one low-power Schottky TTL load.
- Is the MC14504B RoHS compliant?
- What are the typical propagation delays for the MC14504B?
The typical propagation delays range from 140 to 340 ns depending on the shifting mode and voltage levels.
