Overview
The 74HC4511D,652 is a BCD to 7-segment latch/decoder/driver integrated circuit produced by Nexperia (formerly part of NXP Semiconductors). This component is designed to convert Binary Coded Decimal (BCD) inputs into 7-segment display outputs, making it ideal for driving common cathode LED displays. It features a latch enable input, ripple blanking input, and a lamp test input, allowing for flexible control over the display outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC (Supply Voltage) | 2.0 - 6.0 | V |
| Logic Switching Levels | CMOS | - |
| Output Drive Capability | -10 mA | mA |
| tpd (Propagation Delay) | 28 ns (typical at VCC = 5 V) | ns |
| Power Dissipation | Low | - |
| Tamb (Operating Temperature) | -40°C to +125°C | °C |
| Package | SO16 (SOT109-1) | - |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | - |
Key Features
- BCD to 7-Segment Conversion: Converts BCD inputs into 7-segment display outputs.
- Latch Enable Input: Allows data to be latched and stored when the latch enable input is high.
- Ripple Blanking Input: Forces all segment outputs low when the blanking input is low.
- Lamp Test Input: Sets all segment outputs high when the lamp test input is low, independent of other input conditions.
- High Output Drive Capability: Guaranteed 10 mA drive capability per output.
- Low Power Dissipation: CMOS low power dissipation.
- High Noise Immunity: High noise immunity, especially for the 74HC4511 version.
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- ESD Protection: Robust ESD protection according to HBM and CDM standards.
Applications
The 74HC4511D,652 is widely used in various applications, including:
- Display Systems: Driving common cathode LED displays in digital clocks, calculators, and other display systems.
- Industrial Control Systems: Used in industrial control panels and instrumentation.
- Automotive Systems: Employed in automotive dashboards and other display-intensive applications.
- Consumer Electronics: Found in consumer electronics such as home appliances and gadgets.
Q & A
- What is the primary function of the 74HC4511D,652?
The primary function is to convert BCD inputs into 7-segment display outputs.
- What is the supply voltage range for the 74HC4511D,652?
The supply voltage range is from 2.0 V to 6.0 V.
- What is the output drive capability of the 74HC4511D,652?
The output drive capability is guaranteed at 10 mA per output.
- How does the latch enable input work?
When the latch enable input is low, the state of the segment outputs is determined by the data on the BCD inputs. When it goes high, the last data present on the BCD inputs are stored in the latches.
- What is the purpose of the ripple blanking input?
The ripple blanking input forces all segment outputs low when it is set low.
- How does the lamp test input function?
The lamp test input sets all segment outputs high when it is set low, independent of other input conditions.
- What type of logic switching levels does the 74HC4511D,652 use?
The 74HC4511D,652 uses CMOS logic switching levels.
- What is the operating temperature range for the 74HC4511D,652?
The operating temperature range is from -40°C to +125°C.
- What kind of ESD protection does the 74HC4511D,652 have?
The component has robust ESD protection according to HBM and CDM standards, exceeding 2000 V and 1000 V respectively.
- In what package is the 74HC4511D,652 available?
The component is available in the SO16 (SOT109-1) package.
