CD4527 BCD Rate Multiplier


CD4527 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4527 has BCD Rate Multiplier

CD4527 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.

CD4527 Features

  • High Voltage Type (20V Rating)
  • Cascadable in Multiples of 4-Bits
  • Set to “9” Input and “9” Detect Output
  • 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

CD4527 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

CD4527 Pinout Diagram

CD4527 Pin Description

Pin NoPin NameDescription
1“9” OUTOutput At Pin 9
2CBCD Input Pin C
3D BCD Input Pin D
4SET TO “9”Set At Pin “9”
5OUT’Invert Output Pin
6OUTOutput Pin
7INHIBIT OUT (CARRY)Inhibit Output (Carry)
8VSSSupply Voltage
9CLKClock Pin
10STROBEStrobe Pin
11 INHIBIT IN (CARRY) Inhibit Input (Carry)
12CASCADECascade Pin
13CLEARClear Pin
14A BCD Input Pin A
15B BCD Input Pin B
16VDDDrain Voltage

CD4527 Circuit


  • Numerical Control
  • Instrumentation
  • Digital Filtering
  • Frequency Synthesis

CD4527 Alternative Equivalent

Download CD4527 BCD Rate Multiplier Datasheet from the link given below.