Overview
The HEF4511BT653, produced by Nexperia USA Inc., is a BCD to 7-segment latch/decoder/driver integrated circuit. This component is designed to convert Binary Coded Decimal (BCD) input into a format suitable for driving 7-segment displays. It features a latch function, ripple blanking, and lamp test capabilities, making it versatile for various display applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 3 | - | 15 | V |
| Input Voltage (VI) | 0 | - | VDD | V |
| Ambient Temperature (Tamb) | -40 | - | 125 | °C |
| Storage Temperature (Tstg) | -65 | - | 150 | °C |
| Total Power Dissipation (Ptot) - DIP16 | - | - | 750 | mW |
| Total Power Dissipation (Ptot) - SO16 | - | - | 500 | mW |
| Power Dissipation per Output | - | - | 100 | mW |
| Input Transition Rise and Fall Rate (VDD = 5V) | - | - | 3.75 | μs/V |
| Input Transition Rise and Fall Rate (VDD = 10V) | - | - | 0.5 | μs/V |
| Input Transition Rise and Fall Rate (VDD = 15V) | - | - | 0.08 | μs/V |
Key Features
- Fully static operation
- Parametric ratings for 5 V, 10 V, and 15 V
- Standardized symmetrical output characteristics
- Specified operation from -40°C to +125°C
- Complies with JEDEC standard JESD 13-B
- Latch enable input (active HIGH)
- Ripple blanking input (active LOW)
- Lamp test input (active LOW)
- Seven active HIGH NPN bipolar transistor segment outputs
Applications
The HEF4511BT653 is suitable for a variety of applications involving 7-segment displays, such as digital clocks, calculators, and other electronic devices that require BCD to 7-segment conversion. It is particularly useful in systems where data needs to be latched and displayed, and where ripple blanking and lamp testing are necessary.
Q & A
- What is the primary function of the HEF4511BT653?
The primary function is to convert Binary Coded Decimal (BCD) input into a format suitable for driving 7-segment displays. - What are the key inputs of the HEF4511BT653?
The key inputs include four address inputs (D0 to D3), an active HIGH latch enable input (LE), an active LOW ripple blanking input (BL), and an active LOW lamp test input (LT). - What is the operating voltage range of the HEF4511BT653?
The operating voltage range is from 3 V to 15 V. - What are the temperature specifications for the HEF4511BT653?
The component operates from -40°C to +125°C and can be stored from -65°C to +150°C. - What is the purpose of the latch enable input (LE)?
The latch enable input (LE) stores the last data present on D0 to D3 when it goes HIGH. - What is the effect of the lamp test input (LT) when it is LOW?
When LT is LOW, all segment outputs are HIGH independent of other input conditions. - What is ripple blanking and how is it controlled in the HEF4511BT653?
Ripple blanking is controlled by the active LOW ripple blanking input (BL), which forces all segment outputs LOW when BL is LOW and LT is HIGH. - What are the package options for the HEF4511BT653?
The component is available in SO16 (small outline package) and DIP16 (dual in-line package) options. - Is the HEF4511BT653 RoHS compliant?
Yes, the HEF4511BT653 is RoHS compliant and lead-free. - What is the total power dissipation for the SO16 package?
The total power dissipation for the SO16 package is 500 mW.
