CD40116-8-bit bidirectional CMOS-to-TTL level converter


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 NoPin NameDescription
1VDDDrain Voltage
2A1CMOS Input/Output A1
3A2 CMOS Input/Output A2
4A3 CMOS Input/Output A3
5A4 CMOS Input/Output A4
6A5 CMOS Input/Output A5
7A6 CMOS Input/Output A6
8A7 CMOS Input/Output A7
9A8 CMOS Input/Output A8
10ENABLE NOR Gate 2 Output
11VSSSupply Voltage
12VSS Supply Voltage
13DISABLE NOR Gate 1 Input 3
14B8TTL Input/Output B8
15B7 TTL Input/Output B7
16B6 TTL Input/Output B6
17B5 TTL Input/Output B5
18B4 TTL Input/Output B4
19B3 TTL Input/Output B3
20B2 TTL Input/Output B2
21B1 TTL Input/Output B1
22VCCCollector Voltage

CD40116 Circuit


  • 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.