Description
The SN74LS47N is a specialized TTL integrated circuit designed to accept a 4-bit Binary Coded Decimal (BCD) input and decode it into the appropriate signals to drive a common-anode 7-segment LED display. It features “open-collector” outputs, which are capable of sinking up to 24mA, allowing it to drive many common LED displays directly without external transistors.
Beyond simple decoding, the IC includes lamp-test (LT-bar) and blanking inputs/ripple-blanking outputs (BI/RBO-bar), which facilitate display testing and leading/trailing zero suppression in multi-digit display applications.
Note: Product images are shown for reference only.
Features
- BCD to 7-segment decoding logic
- Open-collector outputs (high-current sink capability)
- Active-LOW lamp-test, blanking input, and ripple-blanking outputs
- Low-power Schottky (LS) TTL technology
- Standard 16-pin DIP through-hole package
Benefits
- Direct Drive: Capable of driving common-anode displays directly, reducing component count.
- Advanced Control: Built-in zero suppression and test functions simplify multi-digit display designs.
- Compatibility: Perfectly matches standard BCD outputs from counters and microcontrollers.
Applications
- Digital Clocks and Timers
- Numeric Readouts for Counters/Calculators
- Display Systems for Instrumentation
- Educational Digital Electronics Projects
Package Includes
- 1 x SN74LS47N BCD to 7-Segment Decoder/Driver IC (DIP-16)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | SN74LS47N |
| Device Type | BCD to 7-Segment Decoder/Driver |
| Logic Family | 74LS (Low-Power Schottky TTL) |
| Package / Case | DIP-16 |
| Mounting Type | Through-Hole |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |
