CD4048 CMOS Multifunction Expandable 8-Input Gate


CD4048 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4048 has CMOS Multifunction Expandable 8-Input Gate

CD4048 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.

CD4048 Features

  • Three-state output .
  • Many logic functions available in one package
  • Standardized, symmetrical output characteristics
  • 100% tested for quiescent current at 20V
  • Maximum input current of 1 uA at 18 V (full package-temperature range), 100 nA
    • at 18 V and 25°C
  • Noise margin (full package-temperature range)= 1 V at Vpp5 V, 2 V at VpD
    • 10 V, 2.5 V at VDD=15 V
  • 5-V, 10-V, and 15-V parametric ratings

CD4048 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

CD4048 Pinout Diagram

CD4048 Pin Description

Pin NoPin NameDescription
1J(OUT)Output Of Function Gate
2KdBinary Input Pin Kd
3HInput Pin H
4G Input Pin G
5F Input Pin F
6E Input Pin E
7Kb Binary Input Pin Kb
8VSSSupply Voltage
9Kc Binary Input Pin Kc
10Ka Binary Input Pin Ka
11D Input Pin D
12C Input Pin C
13B Input Pin B
14A Input Pin A
15EXPANDExpand Pin
16VDDDrain Voltage

CD4048 Circuit


  • Selection of up to 8 logic functions
  • Digital control of logic
  • General-purpose gating logic
    • Decoding
    • Encoding

CD4048 Alternative Equivalent

Download CD4048 CMOS Multifunction Expandable 8-Input Gate Datasheet from the link given below.