CD4505- 64-bit, 1-bit per word random access memory (RAM)


CD4505 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4505 has 64-bit, 1-bit per word random access memory (RAM)

CD4505 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.

CD4505 Features

  • High-Voltage Types (20V Rating)
  • Buffered Inputs and Outputs
  • Standard Symmetrical Output Characteristics
  • 100% Tested for Maximum Quiescent Current at 20V
  • 5V, 10V, and 15V Parametric Ratings

CD4505 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

CD4505 Pinout Diagram

CD4505 Pin Description

Pin NoPin NameDescription
1A0Address input A0
2A1Address input A1
3A2Address input A2
4A3Address input A3
5STstrobe input
6CE1chip enable input 2
7VSSSupply Voltage
8CE2chip enable input 2
9R/W’read/write input
10D(OUT)Data output
11A4Address input A4
12A5Address input A5
13DINData input
14VDDDrain Voltage

CD4505 Circuit


CD4505 Alternative Equivalent

Download CD4505- 64-bit, 1-bit per word random access memory (RAM) Datasheet from the link given below.