Overview
The MC14518BDWG is a dual BCD counter produced by onsemi. This integrated circuit is part of the MC14518B series, which includes dual BCD and binary counters. The MC14518B is constructed with MOS P−channel and N−channel enhancement mode devices in a single monolithic structure. It consists of two identical, independent, internally synchronous 4-stage counters, each capable of counting in BCD (Binary Coded Decimal) format. The counters are designed for low power dissipation and high noise immunity, making them suitable for various counting applications.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| DC Supply Voltage Range | VDD | −0.5 to +18.0 | V |
| Input or Output Voltage Range | Vin, Vout | −0.5 to VDD + 0.5 | V |
| Input or Output Current | Iin, Iout | ±10 | mA |
| Power Dissipation per Package | PD | 500 | mW |
| Operating 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 |
| Output Voltage “1” Level | VOH | 4.95 to 14.95 | Vdc |
| Input Voltage “0” Level | VIL | 1.5 to 4.0 | Vdc |
| Input Voltage “1” Level | VIH | 3.5 to 11 | Vdc |
| Output Drive Current (Source) | IOH | −3.0 to −0.64 | mA |
| Output Drive Current (Sink) | IOL | 0.64 to 4.2 | mA |
| Quiescent Current | IDD | 0.005 to 0.015 | μA |
| Total Supply Current | IT | (0.6 to 1.7 μA/kHz) f + IDD | μA |
Key Features
- Internally Synchronous Counters: Each counter is internally synchronous, ensuring high internal and external speeds.
- Logic Edge-Clocked Design: The counters can be incremented on either the positive transition of the clock or the negative transition on the enable line.
- Low Power Dissipation: Designed for low power consumption, making it suitable for battery-powered devices.
- High Noise Immunity: The counters offer high noise immunity, ensuring reliable operation in noisy environments.
- Diode Protection on All Inputs: Built-in diode protection to guard against high static voltages or electric fields.
- Capable of Driving TTL Loads: Can drive two low-power TTL loads or one low-power Schottky TTL load over the rated temperature range.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring unique site and control change requirements.
- Pb-Free and RoHS Compliant: Environmentally friendly and compliant with RoHS regulations.
Applications
- Multi-Stage Synchronous or Ripple Counting: Ideal for applications requiring multiple stages of counting, such as in digital counters, timers, and frequency dividers.
- Automotive Systems: AEC-Q100 qualified, making it suitable for use in automotive electronics.
- Industrial Control Systems: Used in various industrial control applications where reliable and low-power counting is necessary.
- Consumer Electronics: Found in consumer electronics that require accurate and efficient counting mechanisms.
Q & A
- What is the supply voltage range for the MC14518BDWG?
The supply voltage range is from 3.0 Vdc to 18.0 Vdc.
- How many stages does each counter in the MC14518BDWG have?
Each counter has 4 stages.
- What type of flip-flops are used in the MC14518BDWG counters?
The counters use type D flip-flops.
- Can the MC14518BDWG counters be incremented on both positive and negative clock transitions?
Yes, the counters can be incremented on either the positive transition of the clock or the negative transition on the enable line.
- What is the operating temperature range for the MC14518BDWG?
The operating temperature range is from −55°C to +125°C.
- Is the MC14518BDWG Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
- What is the maximum power dissipation for the MC14518BDWG?
The maximum power dissipation is 500 mW per package.
- Can the MC14518BDWG drive TTL loads?
Yes, it can drive two low-power TTL loads or one low-power Schottky TTL load over the rated temperature range.
- What is the quiescent current of the MC14518BDWG?
The quiescent current is 0.005 to 0.015 μA.
- Is the MC14518BDWG suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other similar applications).
