Overview
The CD4026BE is a CMOS Decade Counter/Divider with Decoded 7-Segment Display Outputs and Display Enable, manufactured by Texas Instruments. This integrated circuit combines a 5-stage Johnson decade counter and an output decoder that converts the Johnson code to a 7-segment decoded output. This makes it particularly useful for display applications where low power dissipation and minimal package count are crucial.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | DIP-16 |
| Pins | 16 |
| Operating Temperature Range (°C) | -55 to 125 |
| Supply Voltage Range (V) | 3V to 18V |
| Maximum Clock Frequency (MHz) | 16 MHz |
| Clock Input Type | Schmitt-triggered |
| Quiescent Current Test Voltage (V) | 20 V |
| RoHS Compliance | Yes |
Key Features
- Counter and 7-segment decoding in one package
- Easily interfaced with 7-segment display types
- Fully static counter operation: DC to 6 MHz (typ.) at VDD= 10 V
- Ideal for low-power displays
- Display enable output
- Standardized, symmetrical output characteristics
- 5-V, 10-V, and 15-V parametric ratings
- Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of B Series CMOS Devices"
Applications
- Decade counting 7-segment decimal display
- Frequency division 7-segment decimal displays
- Clocks, watches, timers (e.g., ÷60, ÷60, ÷12 counter/display)
- Counter/display driver for meter applications
Q & A
- What is the CD4026BE used for? The CD4026BE is used for decade counting and driving 7-segment decimal displays, among other applications.
- What is the operating temperature range of the CD4026BE? The operating temperature range is -55°C to 125°C.
- What is the maximum clock frequency of the CD4026BE? The maximum clock frequency is 16 MHz.
- Is the CD4026BE RoHS compliant? Yes, the CD4026BE is RoHS compliant.
- What types of packages are available for the CD4026BE? The CD4026BE is available in DIP-16, NSR, PW, and PWR packages.
- How does the display enable feature work on the CD4026BE? The display enable output allows the 7-segment outputs to go high only when the DISPLAY ENABLE IN is high.
- What is the purpose of the CARRY-OUT signal? The CARRY-OUT signal completes one cycle every ten CLOCK INPUT cycles and is used to clock the succeeding decade directly in a multi-decade counting chain.
- Can the CD4026BE be used in low-power applications? Yes, the CD4026BE is ideal for low-power displays.
- What are the common inputs and outputs of the CD4026BE? Common inputs include CLOCK, RESET, and CLOCK INHIBIT. Common outputs include CARRY OUT and the seven decoded outputs (a, b, c, d, e, f, g).
- How does the CLOCK INHIBIT signal function? The CLOCK INHIBIT signal can be used to inhibit counter advancement via the clock line when it is high.
