Description: CD4028 Decimal Decoder IC CD 4028 CMOS BCD To Decimal Or Binary To Octal Decoders Drivers IC Breadboard Friendly DIP 16 Pin IC

The CD4028B is a BCD-to-decimal or binary-to-octal decoder consisting of 4 inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the 4 inputs, A, B, C, and D, results in a high level at the selected 1-of-10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A, B, and C is decoded in octal at outputs 0–7. A high level signal at the D input inhibits octal decoding and causes outputs 0–7 to go LOW. All inputs are protected against static discharge damage by diode clamps to VDD and VSS.

Specification:

• DC Supply Voltage Range:-0.5V to +20V
• Input Voltage Range, All Inputs:-0.5V to VDD+0.5V
• DC Input Current, any one input:±10mA
• 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 = 80 ns (typ.) @ VDD = 10 V
• Standardized, symmetrical output characteristics, 100% tested for quiescent current at 20 V, 5-V, 10-V, and 15-V parametric ratings
• Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C, Meets all requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description of ’B’ Series CMOS Devices”
• Noise margin (full package-temperature range) = 1 V at VDD = 5 V, 2 V at VDD = 10 V, 2.5 V at VDD = 15 V, Applications: Code conversion Indicator-tube decoder Address decoding-memory selection control

CD4028 Key Features:

• Wide supply voltage range: 3.0V to 15V
• High noise immunity: 0.45 VDD (typ.)
• Low power TTL compatibility: fan out of 2 driving 74L or 1 driving 74LS
• Low power
• Glitch free outputs
• “Positive logic” on inputs and outputs

• Wide supply voltage range: 3.0V to 15V
• High noise immunity: 0.45 VDD (typ.)
• Low power TTL compatibility: fan out of 2 driving 74L or 1 driving 74LS
• Low power
• Glitch free outputs
• “Positive logic” on inputs and outputs