CD40116 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD40116 has an 8-bit bidirectional CMOS-to-TTL level converter
CD40116 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.

CD40116 Features
- Eight inverting channels with conversion from VDD toVcc or Vcc to VDD
- (4V < VDD< 12V and 4V<VCC < VDD)
- Three operating modes:
- CMOS-to-TTL level conversion
- TTL-to-CMOS level conversion
- Interface off; high-impedance on both sides
- High TTL sink current – 11 mA typ.
- No external TTL input pull-up resistors required
- High speed drive of large data bus capacitances
- Input/output and power supply terminals located for ease of PC board layout
CD40116 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
CD40116 Pinout Diagram

CD40116 Pin Description
Pin No | Pin Name | Description |
1 | VDD | Drain Voltage |
2 | A1 | CMOS Input/Output A1 |
3 | A2 | CMOS Input/Output A2 |
4 | A3 | CMOS Input/Output A3 |
5 | A4 | CMOS Input/Output A4 |
6 | A5 | CMOS Input/Output A5 |
7 | A6 | CMOS Input/Output A6 |
8 | A7 | CMOS Input/Output A7 |
9 | A8 | CMOS Input/Output A8 |
10 | ENABLE | NOR Gate 2 Output |
11 | VSS | Supply Voltage |
12 | VSS | Supply Voltage |
13 | DISABLE | NOR Gate 1 Input 3 |
14 | B8 | TTL Input/Output B8 |
15 | B7 | TTL Input/Output B7 |
16 | B6 | TTL Input/Output B6 |
17 | B5 | TTL Input/Output B5 |
18 | B4 | TTL Input/Output B4 |
19 | B3 | TTL Input/Output B3 |
20 | B2 | TTL Input/Output B2 |
21 | B1 | TTL Input/Output B1 |
22 | VCC | Collector Voltage |
CD40116 Circuit
Applications
- Interface CMOS microprocessor with TTL memories and peripheral devices
- The interface between and within logic systems which combine CMOS and TTL devices
CD40116 Alternative Equivalent
Download CD40116-8-bit bidirectional CMOS-to-TTL level converter Datasheet from the link given below.