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SN74LS247N
Public Made by Adomby adom
Texas Instruments Digital Tube Drivers, DIP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74LS247N
Texas Instruments · Digital Tube Drivers · DIP-16
SN74LS247N from Texas Instruments, 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 B; one of four active-high BCD inputs (A, B, C, D) used to select the seven-segment display character; Req = 25 kΩ NOM. |
| 2 | C | input | BCD data input C; one of four active-high BCD inputs; Req = 25 kΩ NOM. |
| 3 | ~{LT} | input | Lamp-test input (active low); when LT is low and BI/RBO node is high, all seven segment outputs are forced on regardless of data inputs; Req = 20 kΩ NOM. |
| 4 | BI/~{RBO} | bidirectional | Wire-AND node functioning as blanking input (BI) or ripple-blanking output (RBO); when driven low all segment outputs turn off; automatically goes low as RBO when RBI is active and all BCD inputs are zero. |
| 5 | ~{RBI} | input | Ripple-blanking input (active low); when low with all BCD inputs low and LT high, blanks the zero display and pulls BI/RBO low for cascaded zero suppression; Req = 20 kΩ NOM. |
| 6 | D | input | BCD data input D (most-significant bit); one of four active-high BCD inputs; Req = 25 kΩ NOM. |
| 7 | A | input | BCD data input A (least-significant bit); one of four active-high BCD inputs; Req = 25 kΩ NOM. |
| 8 | GND | power_in | Ground; 0 V supply reference terminal for the device. |
| 9 | e | output | Segment e active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment e directly. |
| 10 | d | output | Segment d active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment d directly. |
| 11 | c | output | Segment c active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment c directly. |
| 12 | b | output | Segment b active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment b directly. |
| 13 | a | output | Segment a active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment a directly. |
| 14 | g | output | Segment g active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment g directly. |
| 15 | f | output | Segment f active-low open-collector output; maximum off-state voltage 15 V, maximum on-state sink current 24 mA (SN74LS247); drives seven-segment display segment f directly. |
| 16 | VCC | power_in | Positive supply voltage; 4.75 V minimum, 5 V nominal, 5.25 V maximum for SN74LS247; absolute maximum 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-16 |
| Category | LED Drivers |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74LS247N - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74ls247n-etched.step/sn74ls247n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ls247n.step/sn74ls247n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (20 pp, sha256
fb021c0f3703abf0, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(vision), consensusclaude-opus-4-7(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).