4026 IC Decade Counter/Divider (7 segment)
The CD4026BE is a decade counter IC with a built-in 7-segment display driver, designed for counting applications and numerical display systems. It combines a Johnson decade counter with a 7-segment decoder/driver that directly interfaces with LED displays, making it ideal for projects that require numeric output without complex external circuitry.
Each clock pulse advances the count by one, and the output is automatically decoded to drive a common cathode 7-segment display. This IC simplifies numeric display tasks in digital clocks, counters, frequency meters, and other embedded systems. It features a carry-out pin to cascade multiple ICs for multi-digit display applications.
Key Features
Integrated decade counter and 7-segment display driver
Drives common cathode 7-segment LED displays
Supports cascading for multi-digit counting
High noise immunity and low power consumption
Wide supply voltage range (3V to 15V)
Carry-out and disable display functions
Easy-to-use DIP-16 package
Pin Configuration (DIP-16)
| Pin | Label | Description |
|---|---|---|
| 1 | CO (Carry Out) | Goes HIGH when count reaches 10 |
| 2 | CLK INH | Clock Inhibit (active HIGH) |
| 3 | CLK | Clock Input (rising edge triggered) |
| 4 | RST | Reset Count (active HIGH) |
| 5 | D | Segment D output |
| 6 | E | Segment E output |
| 7 | C | Segment C output |
| 8 | GND | Ground ‘ |
| 9 | B | Segment B output |
| 10 | F | Segment F output |
| 11 | A | Segment A output |
| 12 | G | Segment G output |
| 13 | OUT | Not connected or internal |
| 14 | DE (Disable) | Disable Display (active HIGH) |
| 15 | VDD | Positive Supply Voltage |
| 16 | Segment DP | Not available (No decimal point driver) |
Product Specifications
| Parameter | Value |
|---|---|
| IC Type | Decade Counter + 7-Segment Driver |
| Logic Family | CMOS |
| Package Type | DIP-16 |
| Supply Voltage | 3V – 15V |
| Max Output Current | Typically 1-5 mA (depends on voltage) |
| Input Compatibility | CMOS and TTL |
| Operating Temperature | -55°C to +125°C |
| Typical Applications | Counters, timers, displays |
Applications
Digital counters
Frequency displays
Digital clocks
Event counters
Scoreboards
Numeric output for embedded systems
DIY electronics and Arduino-based projects
