component
XD74LS248
Public Made by Adomby adom
XINLUDA LED Display Drivers, DIP-16. Pinout cross-checked by two models against the datasheet, 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
markdownXD74LS248
XINLUDA · LED Display Drivers · DIP-16
XD74LS248 from XINLUDA, in a DIP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | B | input | BCD input B; TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V. |
| 2 | C | input | BCD input C; TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V. |
| 3 | LT | input | Active-low lamp test input; with BI/RBO high, a low level turns on all segment outputs. |
| 4 | BI/RBO | bidirectional | Blanking input (active low) that forces all segment outputs off, or ripple-blanking output, with IOL 3.2 mA max and IOH -50 µA max on the 247 spec. |
| 5 | RBI | input | Active-low ripple-blanking input for leading/trailing-edge zero suppression; blanks outputs when low with BCD inputs at zero. |
| 6 | D | input | BCD input D (most significant bit); TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V. |
| 7 | A | input | BCD input A (least significant bit); TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V. |
| 8 | GND | power_in | Ground, the network ground terminal for all voltage values. |
| 9 | e | output | Segment e output, active-high with internal pull-up on the 'LS248. |
| 10 | d | output | Segment d output, active-high with internal pull-up on the 'LS248. |
| 11 | c | output | Segment c output, active-high with internal pull-up on the 'LS248. |
| 12 | b | output | Segment b output, active-high with internal pull-up on the 'LS248. |
| 13 | a | output | Segment a output, active-high with internal pull-up on the 'LS248. |
| 14 | g | output | Segment g output, active-high with internal pull-up on the 'LS248. |
| 15 | f | output | Segment f output, active-high with internal pull-up on the 'LS248. |
| 16 | VCC | power_in | Supply voltage, 4.75 V to 5.25 V recommended (5 V nominal), 7 V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | DIP-16 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 4.75 | 5 | 5.25 | V | 8 | |
| High-level output current BI/RBO | IOH | -50 | μA | BI/RBO | 8 | ||
| Low-level output current BI/RBO | IOL | 3.2 | mA | BI/RBO | 8 | ||
| Operating free-air temperature | TA | 0 | 70 | C | 8 | ||
| Supply voltage (absolute maximum) | VCC | 7 | V | 7 | |||
| Input voltage (absolute maximum) | VI | 7 | V | printed for 74LS247 | 7 | ||
| Storage temperature range | Tstg | -65 | 150 | C | 7 | ||
| High-level input voltage | VIH | 2 | V | 8 | |||
| Low-level input voltage | VIL | 0.8 | V | 8 | |||
| Input clamp voltage | VIK | -1.5 | V | VCC = MIN, II = −18 mA | 8 | ||
| High-level output voltage BI/RBO | VOH | 2.4 | 4.2 | V | VCC = MIN, VIL = 0.8 V, VIH = 2 V, IOH = −400 A | 8 | |
| Low-level output voltage BI/RBO | VOL | 0.25 | 0.4 | V | VCC = MIN, VIH = 2 V, VIL = VIL MAX, IOL = 1.6 mA | 8 | |
| Low-level output voltage BI/RBO | VOL | 0.35 | 0.5 | V | VCC = MIN, VIH = 2 V, VIL = VIL MAX, IOL = 3.2 mA | 8 | |
| Input current at maximum input voltage | II | 0.1 | mA | VCC = MAX, VI = 7 V | 8 | ||
| High-level input current | IIH | 20 | A | VCC = MAX, VI = 2.7 V | 8 | ||
| Low-level input current, any input except BI/RBO | IIL | -0.4 | mA | VCC = MAX, VI = 0.4 V | 8 | ||
| Low-level input current, BI/RBO | IIL | -1.2 | mA | VCC = MAX, VI = 0.4 V | 8 | ||
| Short-circuit output current BI/RBO | IOS | -0.3 | -2 | mA | VCC = MAX | 8 | |
| Supply current | ICC | 7 | 13 | mA | VCC = MAX | 8 | |
| Turn-off time from A input | toff | 100 | ns | CL=15 pF, RL=665Ω, VCC = 5 V, TA = 25°C | 9 | ||
| Turn-on time from A input | ton | 100 | ns | CL=15 pF, RL=665Ω, VCC = 5 V, TA = 25°C | 9 | ||
| Turn-off time from RBI input, outputs (a-f) only | toff | 100 | ns | CL=15 pF, RL=665Ω, VCC = 5 V, TA = 25°C | 9 | ||
| Turn-on time from RBI input, outputs (a-f) only | ton | 100 | ns | CL=15 pF, RL=665Ω, VCC = 5 V, TA = 25°C | 9 |
CAD (KiCad official)
- Symbol:
XD74LS248 - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files:
xd74ls248-etched.step/xd74ls248-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xd74ls248.step/xd74ls248.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XINLUDA datasheet (10 pp, sha256
6a771520ab4676dd, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(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).