Features
• High Voltage Type (20V Rating)
• BCD-to-Decimal Decoding or Binary-to-Octal Decoding
• High Decoded Output Drive Capability
• “Positive Logic” Inputs and Outputs - Decoded Outputs
Go High On Selection
• Medium-Speed Operation
- tPHL, tPLH = 80ns (typ) at VDD = 10V
• Standardized Symmetrical Output Characteristics
• 100% Tested For Quiescent Current at 20V
• 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
• 5V, 10V and 15V Parametric Ratings
• Meets All Requirements of JEDEC Tentative Standard
No. 13B, “Standard Specifications for Description of
‘B’ Series CMOS Devices”

Applications
• Code Conversion
• Indication-Tube Decoder
• Address Decoding - Memory Selection Control

Description
CD4028BMS types are BCD-to-decimal or binary-to-octal
decoders consisting of buffering on all 4 inputs, decoding
logic gates, and 10 output buffers. A BCD code applied to
the four inputs, A to D, results in a high level at the selected
one of 10 decimal decoded outputs. Similarly, a 3-bit binary
code applied to inputs A through C is decoded in octal code
at output 0 to 7 if D = “0”. High drive capability is provided at
all outputs to enhance dc and dynamic performance in high
fan-out applications.