CD40194 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD40194 has a 4-bit bidirectional universal shift register
CD40194 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.
CD40194 Features
- High-Voltage Types (20V Rating)
- Medium Speed fcL = 12MHz (Typ.) at VDD = 10V
- Fully Static Operation
- Synchronous Parallel or Serial Operation
- Three-State Outputs (CD40104BMS)
- Asynchronous Master Reset (CD40194BMS)
- 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
CD40194 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
CD40194 Pinout Diagram
CD40194 Pin Description
| Pin No | Pin Name | Description |
| 1 | RESET’ | Invert Reset Pin |
| 2 | SHIFT RIGHT IN | Shift Right Serial Input |
| 3 | D0 | Data Input Pin 0 |
| 4 | D1 | Data Input Pin 1 |
| 5 | D2 | Data Input Pin 2 |
| 6 | D3 | Data Input Pin 3 |
| 7 | SHIFT LEVEL IN | Shift Level Serial Input |
| 8 | VSS | Supply Voltage |
| 9 | SELECT 0 | Select Pin 0 |
| 10 | SELECT 1 | Select Pin 1 |
| 11 | CLK | Clock Pin |
| 12 | Q3 | Output 3 |
| 13 | Q2 | Output 2 |
| 14 | Q1 | Output 1 |
| 15 | Q0 | Output 0 |
| 16 | VDD | Drain Voltage |
CD40194 Circuit
Applications
- Arithmetic Unit Bus Registers
- Serial/Parallel Conversions
- General Purpose Register for Bus Organized Systems
- General Purpose Registers
CD40194 Alternative Equivalent
Download CD40194-4-bit bidirectional universal shift register Datasheet from the link given below.
