CD4027BD Dual J-K Master-Slave Flip-Flop 20V 200µA IC DIP-16
The CD4027BD is a CMOS logic integrated circuit that contains two independent J-K master-slave flip-flops within a single package. Each flip-flop includes J and K data inputs, a clock input, asynchronous set and reset controls, and complementary Q and Q̅ outputs.
The master-slave configuration ensures reliable state changes synchronized with the clock signal, preventing unwanted transitions. Thanks to CMOS technology, the CD4027BD offers low power consumption, wide operating voltage range, and excellent noise immunity, making it suitable for both low-power battery devices and industrial digital systems.
It is widely used in counters, frequency dividers, memory storage elements, sequencing circuits, and digital control systems, where stable and predictable logic operation is required.
Features:
- Dual independent J-K flip-flops.
- Master-slave flip-flop architecture.
- Asynchronous set and reset inputs.
- Complementary Q and Q̅ outputs.
- Clock-controlled state switching.
- Static operation (data retained without clock).
- CMOS logic technology.
- High noise immunity.
Specifications:
| Parameter | Symbol | Value | Unit | Conditions / Description |
|---|---|---|---|---|
| Logic Type: | – | Dual J-K Master-Slave Flip-Flop | – | Functional description |
| Number of Flip-Flops: | – | 2 | – | Internal flip-flop count |
| Output Type: | – | Q and Q̅ | – | Complementary outputs |
| Trigger Type: | – | Clock controlled | – | Master-slave architecture |
| Technology: | – | CMOS | – | Logic family |
| Package Type: | – | DIP-16 | – | Through-hole package |
| Mounting: | – | Through-Hole | – | PCB mounting style |
| Supply Voltage: | VDD | -0.5 to 20 | V | Absolute maximum |
| Input Voltage: | VIN | -0.5 to VDD + 0.5 | V | All inputs |
| Supply Current: | IDD | 200 | µA | VDD = 20V, TA = +125°C |
| Input Current: | IIN | 1 | µA | 18V, full temperature |
| Propagation Delay Clock: | tPHL / tPLH | 130 | ns | VDD = 10V, CL = 50pF |
| Maximum Clock Frequency: | fCL | 12 | MHz | VDD = 15V |
| Operating Temperature: | TA | -55 to +125 | °C | Industrial range |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | Q1 | Output of Flip-Flop 1 |
| 2 | Q̅1 | Inverted Output of Flip-Flop 1 |
| 3 | CP1 | Clock Input 1 |
| 4 | R1 | Reset 1 |
| 5 | K1 | K Input 1 |
| 6 | J1 | J Input 1 |
| 7 | S1 | Set 1 |
| 8 | VSS | Ground |
| 9 | S2 | Set 2 |
| 10 | J2 | J Input 2 |
| 11 | K2 | K Input 2 |
| 12 | R2 | Reset 2 |
| 13 | CP2 | Clock Input 2 |
| 14 | Q̅2 | Inverted Output of Flip-Flop 2 |
| 15 | Q2 | Output of Flip-Flop 2 |
| 16 | VDD | Supply Voltage |
Packages:
- 1x CD4027BD Dual J-K Master-Slave Flip-Flop 20V 200µA IC DIP-16.