CD40109 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD40109 has Low-to-High Voltage Level Shifter
CD40109 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.
CD40109 Features
- High-Voltage Types (20V Rating)
- Independence of Power Supply Sequence Considerations
- VCC can Exceed VDD
- Input Signals can Exceed Both VCC and VDD
- Up and Down Level Shifting Capability
- Three-State Outputs with Separate Enable Controls
- Standard Symmetrical Output Characteristics
- 100% Tested for Maximum Quiescent Current at 20V
- 5V, 10V, and 15V Parametric Ratings
- Maximum Input Current of 1μA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
- Noise Margin (Over Full Package Temperature Range):
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
CD40109 Specifications
Absolute Maximum Ratings
- DC Supply Voltage Range, (VDD): -0.5V to +20V (Voltage Referenced to VSS Terminals)
- Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
- DC Input Current, Any One Input: ±10mA
- Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
- Storage Temperature Range (TSTG): -65oC to +150oC
- Lead Temperature (During Soldering): +265oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD40109 Pinout Diagram
CD40109 Pin Description
| Pin No | Pin Name | Description |
| 1 | VCC | Collector Voltage |
| 2 | ENABLE A | Enable Pin A |
| 3 | A | Input Of Level Shifter 1 |
| 4 | E | Input Of Level Shifter 3 |
| 5 | F | Input Of Level Shifter 4 |
| 6 | B | Input Of Level Shifter 2 |
| 7 | ENABLE B | Enable Pin B |
| 8 | VSS | Supply Voltage |
| 9 | ENABLE C | Enable Pin C |
| 10 | C | Output Of Level Shifter 1 |
| 11 | G | Output Of Level Shifter 3 |
| 12 | NC | Not Connected |
| 13 | H | Output Of Level Shifter 4 |
| 14 | D | Output Of Level Shifter 2 |
| 15 | ENABLE D | Enable Pin D |
| 16 | VDD | Drain Voltage |
CD40109 Circuit
Applications
- High or Low Level Shifting with Three-State Outputs for Unidirectional or Bidirectional Bussing
- Isolation of Logic Subsystems Using Separate Power Supplies from Supply Sequencing, Supply Loss and
- Supply Regulation Consideration
CD40109 Alternative Equivalent
CD4504
Download CD40109 Low-to-High Voltage Level Shifter Datasheet from the link given below.
