Overview
The MC14028BDR2G is a BCD-to-Decimal and Binary-to-Octal decoder produced by onsemi. This integrated circuit is designed for low-power decoding and is suitable for various applications requiring code conversion, address decoding, memory selection control, demultiplexing, and readout decoding. The device operates with a supply voltage range of 3.0 Vdc to 18 Vdc and is capable of driving two low-power TTL loads or one low-power Schottky TTL load over the rated temperature range.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| DC Supply Voltage Range | VDD | -0.5 to +18.0 | V |
| Input or Output Voltage Range (DC or Transient) | Vin, Vout | -0.5 to VDD + 0.5 | V |
| Input or Output Current (DC or Transient) per Pin | Iin, Iout | ±10 mA | mA |
| Power Dissipation per Package | PD | 500 mW | mW |
| Ambient Temperature Range | TA | -55 to +125 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Lead Temperature (8-Second Soldering) | TL | 260 | °C |
| Output Voltage “0” Level | VOL | 0.05 Vdc (max) | Vdc |
| Output Voltage “1” Level | VOH | 4.95 Vdc (min) at VDD = 5.0 Vdc | Vdc |
| Input Voltage “0” Level | VIL | 1.5 Vdc (max) at VDD = 5.0 Vdc | Vdc |
| Input Voltage “1” Level | VIH | 3.5 Vdc (min) at VDD = 5.0 Vdc | Vdc |
| Output Drive Current (VOH = 2.5 Vdc) | IOH | -3.0 mA (min) at VDD = 5.0 Vdc | mA |
| Output Drive Current (VOL = 0.4 Vdc) | IOL | 0.64 mA (min) at VDD = 5.0 Vdc | mA |
| Propagation Delay Time | tPLH, tPHL | 100 ns (max) at VDD = 5.0 Vdc | ns |
Key Features
- Positive Logic Design: The decoder operates with positive logic, making it easier to integrate into various digital systems.
- Diode Protection on All Inputs: The device includes diode protection to guard against high static voltages or electric fields.
- Low Outputs on All Illegal Input Combinations: Ensures that the outputs remain low for any invalid input combinations, preventing unintended operations.
- Wide Supply Voltage Range: Operates with a supply voltage range of 3.0 Vdc to 18 Vdc, making it versatile for different application environments.
- High Drive Performance: Capable of driving two low-power TTL loads or one low-power Schottky TTL load.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring unique site and control change requirements.
- Pb-Free and RoHS Compliant: Meets environmental standards for lead-free and RoHS compliance.
Applications
- Code Conversion: Can be used to convert BCD codes to decimal or binary codes to octal, and can be expanded for other code conversions like binary-to-hexadecimal.
- Address Decoding: Useful in memory selection control and address decoding in digital systems.
- Demultiplexing: Can be used as a demultiplexer to select one of several output lines based on the input code.
- Readout Decoding: Suitable for readout decoding in display applications such as neon readouts or incandescent projection indicators.
- Decimal Digit Displays: Can be used in decimal digit displays to decode and display numerical information.
Q & A
- What is the primary function of the MC14028BDR2G?
The MC14028BDR2G is a BCD-to-Decimal and Binary-to-Octal decoder.
- What is the supply voltage range for the MC14028BDR2G?
The supply voltage range is from 3.0 Vdc to 18 Vdc.
- What kind of protection does the MC14028BDR2G have on its inputs?
The device includes diode protection on all inputs to guard against high static voltages or electric fields.
- Can the MC14028BDR2G drive TTL loads?
Yes, it can drive two low-power TTL loads or one low-power Schottky TTL load.
- What are the temperature ranges for the MC14028BDR2G?
The ambient temperature range is -55°C to +125°C, and the storage temperature range is -65°C to +150°C.
- Is the MC14028BDR2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the maximum power dissipation for the MC14028BDR2G?
The maximum power dissipation per package is 500 mW.
- How does the MC14028BDR2G handle illegal input combinations?
The device ensures that the outputs remain low for any invalid input combinations.
- Can the MC14028BDR2G be used for expanded decoding?
Yes, it can be used to achieve expanded decoding such as binary-to-hexadecimal by using multiple MC14028B devices.
- Is the MC14028BDR2G Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
