Overview
The SN74LS47N is a Low Power Schottky BCD-to-Seven-Segment Decoder/Driver produced by Texas Instruments. This integrated circuit is designed to decode 4-bit binary-coded-decimal (BCD) inputs and drive 7-segment display indicators directly. It features active-low outputs, making it suitable for driving common-anode LEDs or incandescent indicators. The SN74LS47N is part of a family of BCD-to-Seven-Segment Decoders/Drivers that offer various features such as lamp intensity modulation, lamp test provisions, and leading/trailing zero suppression.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | PDIP (N), 16 pins |
| Operating Temperature Range | 0°C to 70°C |
| Supply Voltage | 4.75 V to 5.25 V |
| Input Type | 4-bit Binary-Coded-Decimal (BCD) |
| Output Type | Active-low, Open-Collector Outputs |
| Maximum Output Current | Up to 24 mA |
| Maximum Reverse Current | 250 μA at 15 V |
| Logic Compatibility | TTL and DTL input and output levels |
| Lead Free Status / RoHS Status | Lead Free / RoHS Compliant |
Key Features
- Lamp Intensity Modulation Capability (BI/RBO)
- Open-Collector Outputs Drive Indicators Directly
- Lamp Test Provision
- Leading/Trailing Zero Suppression
- Input Clamp Diodes Limit High-Speed Termination Effects
- Direct Blanking Input (BI)
- Compatible with TTL and DTL Input and Output Logic Levels
Applications
The SN74LS47N is widely used in various applications requiring the display of numerical information, such as:
- Digital Displays in Consumer Electronics
- Industrial Control Panels
- Medical Devices
- Automotive Instrumentation
- Any System Requiring 7-Segment Display Indicators
Q & A
- What is the SN74LS47N?
The SN74LS47N is a Low Power Schottky BCD-to-Seven-Segment Decoder/Driver.
- What type of outputs does the SN74LS47N have?
The SN74LS47N has active-low, open-collector outputs.
- What is the input type for the SN74LS47N?
The input type is 4-bit Binary-Coded-Decimal (BCD).
- What is the maximum output current of the SN74LS47N?
The maximum output current is up to 24 mA.
- Is the SN74LS47N compatible with TTL logic?
- What is the operating temperature range of the SN74LS47N?
The operating temperature range is 0°C to 70°C.
- Does the SN74LS47N have lamp test provisions?
- What is the supply voltage range for the SN74LS47N?
The supply voltage range is 4.75 V to 5.25 V.
- Is the SN74LS47N lead-free and RoHS compliant?
- What is the package type of the SN74LS47N?
The package type is PDIP (N) with 16 pins.
