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Product Detailed Parameters
- Description：IC DRVR 7 SEGMENT 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Display Type：LED
- Configuration：7 Segment
- Interface：BCD
- Digits or Characters：-
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Current - Supply：7 mA
- Grade：-
- Qualification：-
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Overview
The SN74LS247DR is a BCD-to-7-segment decoder and driver manufactured by Texas Instruments. It operates within a supply voltage range of 4.75V to 5.25V and features an operating temperature range of 0°C to 70°C. The device is housed in a 16-SOIC surface-mount package with a width of 3.90mm. It draws a typical supply current of 7mA. This component decodes binary-coded decimal inputs to drive common-cathode seven-segment displays.
Feature Summary
- Decodes four-bit binary-coded decimal (BCD) inputs into seven active-low segment outputs for display driving.
- Includes dedicated blanking input to suppress all display segments when activated.
- Features ripple-blank output to cascade multiple units for multi-digit display applications.
Applications
- Driving common-cathode seven-segment LED numeric displays
- Multi-digit digital readout systems requiring cascaded decoding
- Industrial control panel indicators
Procurement Notes
Verify the specific suffix 'DR' confirms the tape-and-reel packaging format and SOIC-16 footprint. Confirm RoHS compliance status as per the latest manufacturer documentation, noting that lead-free variants may carry distinct ordering codes. Ensure the design accommodates the specified 0°C to 70°C commercial temperature range requirements.
Selection Notes
Select this component when a standard LS-series BCD-to-7-segment interface is required for common-cathode LEDs. Verify that the load current capabilities of the segment outputs match the LED forward current requirements without external buffering. Consider the SOIC-16 package dimensions for PCB layout constraints compared to DIP alternatives.
Part Context
This part belongs to the Texas Instruments SN54/74LS247/48 family of BCD-to-7-segment decoders and drivers. It is functionally equivalent to the SN74LS247N but utilizes a surface-mount package. The device provides direct interfacing between microprocessor data buses and visual display elements.
Replacement Considerations
SN74LS247N
FAQ
What type of seven-segment display does the SN74LS247DR support?
It supports common-cathode seven-segment displays, providing active-low outputs for each segment.
How is the ripple-blank function utilized in this device?
The ripple-blank output allows cascading multiple decoders; it goes low when the leading zero is suppressed, enabling blanking of less significant digits in multi-digit displays.
