CD4555 is a part of the CD4000 IC series. On the CD4555 the outputs are high on select.

Technical Specification:

• Logic IC Base Number: 4555
• Logic IC Family: 4000 CMOS
• Logic IC Function: Dual 1-of-4 Decoder/Demultiplexer
• No. of Channels: 2
• No. of Gates: 2
• No. of Inputs: 2
• Operating Temperature Max: 125°C
• Operating Temperature Min: -55°C
• Output Current Max: 8.8mA
• Package / Case: DIP
• Supply Voltage: 15V
• Supply Voltage: 3V to 15V

Features:                                  

• Dual One-of-Four Decoders/Demultiplexers
• Expandable with Multiple Packages
• High Noise Immunity
• Wide Operating Voltage
• CD4555 Outputs High on Select

Applications:

• Decoding
• Code Conversion
• Demultiplexing (Using Enable Input as a Data Input
• Memory Chip-Enable Selection
• Function Selection