Description
The CD74HC190E (also known as 74HC190 or 74190) is a high-speed BCD (Binary-Coded Decimal) up/down counter IC that provides synchronous operation, making it ideal for digital systems requiring precise counting and directional sequencing.
Operating at a maximum count rate of 35 MHz, this counter IC is built to perform in demanding environments, with a wide operating voltage range of 2 V to 6 V and an industrial-grade temperature range of -55°C to +125°C. Whether you’re designing digital clocks, event counters, or frequency dividers, this IC ensures dependable performance.
Its 16-pin DIP (Dual Inline Package) format makes it breadboard-friendly and ideal for use in educational electronics kits, industrial prototypes, and DIY electronics projects.
✅ Key Features
⬆️⬇️ BCD Up/Down Counting: Supports both increment and decrement operations
Synchronous Triggering: Edge-triggered for precise timing control
High-Speed Operation: Supports up to 35 MHz count rate
Wide Supply Range: Operates between 2V and 6V
️ Industrial Temperature Tolerance: -55°C to +125°C
Easy Mounting: Through-hole DIP-16 design for simple PCB or breadboard use
Preset and Reset Functionality: Useful in timer and sequencer designs
Technical Specifications
| Parameter | Value |
|---|---|
| Series | 74HC |
| Logic Type | BCD Counter (Decade) |
| Count Direction | Up & Down |
| Bit Width | 4 bits |
| Trigger Type | Positive Edge (Synchronous) |
| Count Rate | Up to 35 MHz |
| Voltage Supply Range | 2 V to 6 V |
| Operating Temperature | -55°C to +125°C |
| Mounting Type | Through Hole |
| Package | 16-DIP (0.300″, 7.62 mm width) |
| Device Package | 16-PDIP |
| Base Product Number | 74HC190 |
Package Includes
1 × CD74HC190E / 74HC190 16-DIP BCD Up/Down Counter IC
Applications
⏱️ Digital timers and clocks
Event counters and frequency dividers
Robotics and embedded systems
Engineering and electronics lab projects
Educational and DIY kits
❓ Frequently Asked Questions (FAQ)
Q1: What does BCD mean in this context?
BCD stands for Binary-Coded Decimal, which means the IC counts from 0 to 9 in binary form.
Q2: Can this IC count both up and down?
✅ Yes, it supports both up and down counting through dedicated control inputs.
Q3: Is this IC suitable for breadboard use?
Absolutely! Its through-hole 16-DIP form factor is ideal for breadboards and perfboards.
Q4: What makes this IC different from other counters like 74LS90?
The 74HC190 is a synchronous counter with faster speeds, better noise immunity, and direct up/down control capability.
Q5: Can it handle industrial temperature ranges?
️ Yes, it operates between -55°C to 125°C, making it perfect for rugged environments.
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Buy 74HC190 CD74HC190E BCD Up/Down Counter IC | 16-Pin DIP | Robotech Shop BD
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Get the CD74HC190E 74HC190 BCD Up/Down Counter IC with 16-DIP package at RobotechShop.com. Ideal for digital counting applications, supports 35 MHz, wide voltage range.
