74163 High-Speed CMOS 4-Bit Synchronous Binary Counter DIP-16
The 74163 High-Speed CMOS 4-Bit Synchronous Binary Counter DIP-16 is a versatile digital IC designed for high-speed counting applications. It operates as a preset table 4-bit synchronous binary counter with clear and load functions, allowing precise control over counting operations. All internal operations are synchronized with the clock input, ensuring reliable and glitch-free performance. The device supports cascading for higher bit counts and is widely used in timing, frequency division, digital clocks, and control circuits. Its DIP-16 package makes it easy to use in breadboards and through-hole PCB designs, ideal for educational, prototyping, and industrial digital logic applications.
Features
- 4-bit high-speed synchronous binary counting capability.
- Fully synchronous operation for accurate and stable performance.
- Asynchronous master reset and synchronous parallel load functions.
- Ripple-free operation with all outputs synchronized to the clock.
- Expandable by cascading multiple counters for higher bit ranges.
- TTL and CMOS compatible input levels.
- Typical count frequency up to several MHz depending on supply and load.
- Wide operating voltage range for flexible circuit design.
- Standard 16-pin DIP package for easy mounting and prototyping.
- Ideal for use in timing, sequencing, frequency division, and digital logic circuits.
Pin Configuration
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | CLR | Asynchronous Master Reset (Active LOW) |
| 2 | CLK | Clock Input (Rising Edge Triggered) |
| 3 | A | Parallel Data Input (LSB) |
| 4 | B | Parallel Data Input |
| 5 | C | Parallel Data Input |
| 6 | D | Parallel Data Input (MSB) |
| 7 | ENP | Count Enable Parallel Input |
| 8 | GND | Ground (0V) |
| 9 | LOAD | Synchronous Parallel Load Input (Active LOW) |
| 10 | ENT | Count Enable Trickle Input |
| 11 | QD | Output Bit 3 (MSB) |
| 12 | QC | Output Bit 2 |
| 13 | QB | Output Bit 1 |
| 14 | QA | Output Bit 0 (LSB) |
| 15 | RCO | Ripple Carry Output |
| 16 | VCC | Positive Supply Voltage (+5V) |
Specifications
| Parameter | Specification |
| IC Model | 74163 |
| Datasheet | 74163 |
| Type | 4-Bit Synchronous Binary Counter |
| Technology | High-Speed CMOS / TTL Compatible |
| Logic Family | 74 Series |
| Number of Bits | 4-Bit |
| Counting Mode | Binary, Up Counter |
| Supply Voltage (Vcc) | 4.75V – 5.25V |
| Maximum Clock Frequency | Up to 35 MHz |
| Input High Voltage (VIH) (min) | 2.0V |
| Input Low Voltage (VIL) (max) | 0.8V |
| Output High Voltage (VOH) (min) | 2.7V |
| Output Low Voltage (VOL) (max) | 0.4V |
| Propagation Delay Time | 20 nsec |
| Reset Type | Asynchronous Master Reset |
| Load Function | Synchronous Parallel Load |
| Package Type | DIP-16 |
| Mounting Type | Through Hole |
| Operating Temperature Range | 0°C to +70°C |
Dimensions
Applications
- Digital counters and frequency dividers.
- Sequential logic and state machine designs.
- Digital clocks and timers.
- Frequency and event counting circuits.
- LED or display driving systems.
- Pulse generation and timing control units.
- Binary counting and arithmetic operations in digital systems.
- Microcontroller and digital circuit prototyping.
- Control and sequencing logic in automation systems.
Package Contents
- 1 x 74163 High-Speed CMOS 4-Bit Synchronous Binary Counter DIP-16