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SN74LS47N

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by Ray

XBLW Digital Tube Drivers, DIP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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SN74LS47N

XBLW · Digital Tube Drivers · DIP-16

SN74LS47N from XBLW, in a DIP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 B input BCD data input bit B (weight 2). Active-high 4-bit BCD input word (A,B,C,D) fed to the decoder.
2 C input BCD data input bit C (weight 4). Active-high input to the BCD-to-seven-segment decoder.
3 ~LT input Lamp Test input (active low). When BI/RBO is high and LT is pulled low, all seven segment outputs (a-g) are driven on to verify the display.
4 ~BI/RBO bidirectional Blanking Input / Ripple-Blanking Output (active low, open-collector/wired-AND). Driving this pin low forces all segment outputs off (blanking). As RBO, it goes low when the internal ripple-blank condition is met (RBI low and input = 0), and can be cascaded to the RBI of the next stage for leading/trailing zero suppression.
5 ~RBI input Ripple-Blanking Input (active low). When RBI is low and the BCD input is zero, the display is blanked and RBO goes low; used with BI/RBO of neighbouring digits to suppress leading/trailing zeros.
6 D input BCD data input bit D (weight 8, MSB). Active-high input to the BCD-to-seven-segment decoder.
7 A input BCD data input bit A (weight 1, LSB). Active-high input to the BCD-to-seven-segment decoder.
8 GND power_in Ground reference, 0 V.
9 e output Segment 'e' data output, active-low open-collector drive intended to sink current from a common-anode LED segment. Max output current ±25 mA.
10 d output Segment 'd' data output, active-low open-collector drive for a common-anode LED segment.
11 c output Segment 'c' data output, active-low open-collector drive for a common-anode LED segment.
12 b output Segment 'b' data output, active-low open-collector drive for a common-anode LED segment.
13 a output Segment 'a' data output, active-low open-collector drive for a common-anode LED segment.
14 g output Segment 'g' data output, active-low open-collector drive for a common-anode LED segment.
15 f output Segment 'f' data output, active-low open-collector drive for a common-anode LED segment.
16 VCC power_in Supply voltage. Operating range 2.0 V to 6.0 V (typ. 5.0 V); absolute max +7 V.

Key specifications

Parameter Value
Manufacturer XBLW
Package DIP-16
Category LED Drivers
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • SN74LS47NN
  • SN74LS47NDTR
  • SN74LS47NTDTR

CAD (KiCad official)

  • Symbol: SN74LS47N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: XBLW datasheet (12 pp, sha256 b4f8b46d935ec0df, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF