Overview
The HEF4543BT652, produced by Nexperia USA Inc., is a BCD to 7-segment latch/decoder/driver integrated circuit. This component is designed for use in liquid crystal and LED displays, providing the functionality of a 4-bit storage latch and an 8-4-2-1 BCD to 7-segment decoder/driver. Although the specific part number HEF4543BT652 is listed as obsolete, the general functionality and specifications of the HEF4543B series remain relevant.
Key Specifications
| Parameter | Description |
|---|---|
| Logic Type | BCD to 7 Segment Decoder / Driver / Latch |
| Logic Case Style | SOIC |
| No. of Pins | 16 Pins |
| Supply Voltage Min | 3 V |
| Supply Voltage Max | 15 V |
| Address Inputs | D0 to D3 |
| Latch Enable Input | Active LOW (LE) |
| Blanking Input | Active HIGH (BL) |
| Phase Input | Active HIGH (PH) |
| Segment Outputs | Seven buffered segment outputs (Qa to Qg) |
| Operating Temperature Range | -40 °C to +85 °C |
Key Features
- Functions as a 4-bit storage latch and an 8-4-2-1 BCD to 7-segment decoder/driver.
- Supports both liquid crystal and LED displays.
- Includes active LOW latch enable input (LE), active HIGH blanking input (BL), and active HIGH phase input (PH).
- Seven buffered segment outputs (Qa to Qg).
- Capable of inverting the logic levels of the output combination.
- Operates over a supply voltage range of 3 V to 15 V.
Applications
The HEF4543BT652 is suitable for various display applications, including:
- Liquid crystal displays.
- LED displays (common cathode and common anode).
- Any system requiring BCD to 7-segment decoding and driving capabilities.
Q & A
- What is the primary function of the HEF4543BT652?
The primary function is to act as a BCD to 7-segment latch/decoder/driver for liquid crystal and LED displays. - What is the package type of the HEF4543BT652?
The package type is SOIC (Small Outline Integrated Circuit) with 16 pins. - What is the supply voltage range for the HEF4543BT652?
The supply voltage range is from 3 V to 15 V. - What are the key inputs and outputs of the HEF4543BT652?
The key inputs include four address inputs (D0 to D3), an active LOW latch enable input (LE), an active HIGH blanking input (BL), and an active HIGH phase input (PH). The outputs are seven buffered segment outputs (Qa to Qg). - What types of displays does the HEF4543BT652 support?
The component supports both liquid crystal and LED displays, including common cathode and common anode LED displays. - Is the HEF4543BT652 still in production?
No, the HEF4543BT652 is listed as obsolete, but its specifications and functionality are still relevant for the HEF4543B series. - What is the operating temperature range of the HEF4543BT652?
The operating temperature range is from -40 °C to +85 °C. - Can the HEF4543BT652 invert the logic levels of the output combination?
Yes, it can invert the logic levels of the output combination. - What are some common applications for the HEF4543BT652?
Common applications include liquid crystal displays, LED displays, and any system requiring BCD to 7-segment decoding and driving capabilities. - How many segment outputs does the HEF4543BT652 have?
The component has seven buffered segment outputs (Qa to Qg).
