Overview
The CD4028BE is a CMOS BCD-to-decimal or binary-to-octal decoder/driver produced by Texas Instruments. This integrated circuit is designed to perform code conversion and decoding functions, making it versatile for various applications. The CD4028BE features buffering on all four inputs, decoding logic gates, and ten output buffers, enabling it to handle BCD (Binary Coded Decimal) and binary codes efficiently. It operates with a single supply voltage ranging from 3 V to 18 V and is available in several package types, including 16-lead dual-in-line plastic packages (PDIP).
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 16-lead PDIP (N), 16-lead hermetic dual-in-line ceramic, 16-lead small-outline packages, 16-lead thin shrink small-outline packages |
| Pins | 16 |
| Operating Temperature Range (°C) | -55 to 125 |
| Supply Voltage Range | 3 V to 18 V |
| Output Current High, Low | 6.8 mA, 6.8 mA |
| Propagation Delay (typ.) @ VDD= 10 V | 80 ns |
| 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 |
| Maximum Input Current | 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / ROHS Status | Lead Free / ROHS Compliant |
Key Features
- BCD-to-decimal or binary-to-octal decoding capabilities
- High decoded output drive capability
- Positive logic inputs and outputs; decoded outputs go high on selection
- Medium-speed operation
- Standardized, symmetrical output characteristics
- 100% tested for quiescent current at 20 V
- Meets all requirements of JEDEC Tentative Standard No. 13B, 'Standard Specifications for Description of B Series CMOS Devices'
Applications
- Code conversion
- Indicator-tube decoder
- Address decoding and memory selection control
Q & A
- What is the primary function of the CD4028BE?
The CD4028BE is primarily used for BCD-to-decimal or binary-to-octal decoding and driving.
- What are the available package types for the CD4028BE?
The CD4028BE is available in 16-lead PDIP, 16-lead hermetic dual-in-line ceramic, 16-lead small-outline packages, and 16-lead thin shrink small-outline packages.
- What is the operating temperature range of the CD4028BE?
The operating temperature range is -55°C to 125°C.
- What is the supply voltage range for the CD4028BE?
The supply voltage range is from 3 V to 18 V.
- What is the typical propagation delay of the CD4028BE at VDD= 10 V?
The typical propagation delay is 80 ns.
- What are the noise margins for the CD4028BE at different supply voltages?
The noise margins are 1 V at VDD= 5 V, 2 V at VDD= 10 V, and 2.5 V at VDD= 15 V.
- Is the CD4028BE lead-free and ROHS compliant?
- What are some common applications of the CD4028BE?
- What is the moisture sensitivity level (MSL) of the CD4028BE?
- How is the output current of the CD4028BE specified?
