CD40373-Octal D-type transparent latch


CD40373 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD40373 has an Octal D-type transparent latch

CD40373 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.

CD40373 Features

  • High-Voltage Types (20V Rating)
  • 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

CD40373 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

CD40373 Pinout Diagram

CD40373 Pin Description

Pin NoPin NameDescription
1EO’Invert Enable Output
2O0Transparent Latch Output 1
3D0 Transparent Latch Input 1
4D1 Transparent Latch Input 2
5O1 Transparent Latch Output 2
6O2 Transparent Latch Output 3
7D2 Transparent Latch Input 3
8D3 Transparent Latch Input 4
9O3 Transparent Latch Output 4
10VSSSupply Voltage
11ELatch Enable
12O4 Transparent Latch Output 5
13D4 Transparent Latch Input 5
14D5 Transparent Latch Input 6
15O5 Transparent Latch Output 6
16O6 Transparent Latch Output 7
17D6 Transparent Latch Input 7
18D7 Transparent Latch Input 8
19O7 Transparent Latch Output 8
20VDDDrain Voltage

CD40373 Circuit


  • Computing as well as data storage

CD40373 Alternative Equivalent

Download CD40373-Octal D-type transparent latch Datasheet from the link given below.