component
AiP74HC244SA20.TR
Public Made by Adomby adom
Wuxi I core Elec Buffers, Drivers, Receivers, Transceivers, SOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
AiP74HC244SA20.TR
Wuxi I core Elec · Buffers, Drivers, Receivers, Transceivers · SOP-20
AiP74HC244SA20.TR from Wuxi I core Elec, in a SOP-20. 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 | 1OE | input | Output enable for outputs 1Y0 to 1Y3, active low; a high level forces those outputs into the high-impedance (Z) state. |
| 2 | 1A0 | input | Data input for channel 1A0, non-inverting to 1Y0; input clamp diodes allow voltages above VCC through a current-limiting resistor, with input clamp current limited to ±20 mA. |
| 3 | 2Y0 | tri_state | Three-state bus output, non-inverting from 2A0; output current is limited to ±35 mA. |
| 4 | 1A1 | input | Data input for channel 1A1, non-inverting to 1Y1; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 5 | 2Y1 | tri_state | Three-state bus output, non-inverting from 2A1; output current is limited to ±35 mA. |
| 6 | 1A2 | input | Data input for channel 1A2, non-inverting to 1Y2; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 7 | 2Y2 | tri_state | Three-state bus output, non-inverting from 2A2; output current is limited to ±35 mA. |
| 8 | 1A3 | input | Data input for channel 1A3, non-inverting to 1Y3; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 9 | 2Y3 | tri_state | Three-state bus output, non-inverting from 2A3; output current is limited to ±35 mA. |
| 10 | GND | power_in | Ground (0 V) reference. |
| 11 | 2A3 | input | Data input for channel 2A3, non-inverting to 2Y3; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 12 | 1Y3 | tri_state | Three-state bus output, non-inverting from 1A3; output current is limited to ±35 mA. |
| 13 | 2A2 | input | Data input for channel 2A2, non-inverting to 2Y2; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 14 | 1Y2 | tri_state | Three-state bus output, non-inverting from 1A2; output current is limited to ±35 mA. |
| 15 | 2A1 | input | Data input for channel 2A1, non-inverting to 2Y1; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 16 | 1Y1 | tri_state | Three-state bus output, non-inverting from 1A1; output current is limited to ±35 mA. |
| 17 | 2A0 | input | Data input for channel 2A0, non-inverting to 2Y0; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 18 | 1Y0 | tri_state | Three-state bus output, non-inverting from 1A0; output current is limited to ±35 mA. |
| 19 | 2OE | input | Output enable for outputs 2Y0 to 2Y3, active low; a high level forces those outputs into the high-impedance (Z) state. |
| 20 | VCC | power_in | Supply voltage: 2.0 V to 6.0 V for AiP74HC244 and 4.5 V to 5.5 V for AiP74HCT244; absolute maximum 7.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wuxi I core Elec |
| Package | SOP-20 |
| Category | Logic |
| Pins | 20 |
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 | -0.5 | 7 | V | 6 | ||
| Input clamp current | IIK | -20 | 20 | mA | VI<-0.5V 或 VI>VCC+0.5V | 6 | |
| Output clamp current | IOK | -20 | 20 | mA | VO<-0.5V 或 VO>VCC+0.5V | 6 | |
| Output current | IO | -35 | 35 | mA | -0.5V<VO<VCC+0.5V | 6 | |
| Supply current | ICC | 70 | mA | 6 | |||
| Ground current | IGND | -70 | mA | 6 | |||
| Storage temperature | Tstg | -65 | 150 | ℃ | 6 | ||
| Total power dissipation | Ptot | 500 | mW | 6 | |||
| Soldering temperature (SOP) | TL | 250 | ℃ | 10 s | 6 | ||
| Supply voltage | VCC | 2 | 5 | 6 | V | 6 | |
| Input voltage | VI | 0 | V | 6 | |||
| Output voltage | VO | 0 | V | 6 | |||
| Input rise and fall rate | Δt/ΔV | 625 | ns/V | VCC=2.0V | 6 | ||
| Input rise and fall rate | Δt/ΔV | 1.67 | 139 | ns/V | VCC=4.5V | 6 | |
| Input rise and fall rate | Δt/ΔV | 83 | ns/V | VCC=6.0V | 6 | ||
| Operating ambient temperature | Tamb | -40 | 105 | ℃ | 6 | ||
| High-level input voltage | VIH | 1.5 | 1.2 | V | Tamb=25℃; VCC=2.0V | 7 | |
| High-level input voltage | VIH | 3.15 | 2.4 | V | Tamb=25℃; VCC=4.5V | 7 | |
| High-level input voltage | VIH | 4.2 | 3.2 | V | Tamb=25℃; VCC=6.0V | 7 | |
| Low-level input voltage | VIL | 0.8 | 0.5 | V | Tamb=25℃; VCC=2.0V | 7 | |
| Low-level input voltage | VIL | 2.1 | 1.35 | V | Tamb=25℃; VCC=4.5V | 7 | |
| Low-level input voltage | VIL | 2.8 | 1.8 | V | Tamb=25℃; VCC=6.0V | 7 | |
| High-level output voltage | VOH | 1.9 | 2 | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=2.0V | 7 | |
| High-level output voltage | VOH | 4.4 | 4.5 | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=4.5V | 7 | |
| High-level output voltage | VOH | 5.9 | 6 | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=6.0V | 7 | |
| High-level output voltage | VOH | 3.98 | 4.32 | V | Tamb=25℃; VI=VIH或VIL; IO=-6.0mA; VCC=4.5V | 7 | |
| High-level output voltage | VOH | 5.48 | 5.81 | V | Tamb=25℃; VI=VIH或VIL; IO=-7.8mA; VCC=6.0V | 7 | |
| Low-level output voltage | VOL | 0 | 0.1 | V | Tamb=25℃; VI=VIH或VIL; IO=20uA; VCC=2.0V | 7 | |
| Low-level output voltage | VOL | 0.15 | 0.26 | V | Tamb=25℃; VI=VIH或VIL; IO=6.0mA; VCC=4.5V | 7 | |
| Low-level output voltage | VOL | 0.16 | 0.26 | V | Tamb=25℃; VI=VIH或VIL; IO=7.8mA; VCC=6.0V | 7 | |
| Input leakage current | II | -0.1 | 0.1 | uA | Tamb=25℃; VI=VCC或GND; VCC=6.0V | 7 | |
| Off-state output current | IOZ | -0.5 | 0.5 | uA | Tamb=25℃; VI=VIH或VIL; VCC=6.0V; VO=VCC或GND | 7 | |
| Quiescent supply current | ICC | 8 | uA | Tamb=25℃; VI=VCC或GND; IO=0A; VCC=6.0V | 7 | ||
| High-level input voltage | VIH | 1.5 | V | Tamb=-40℃～+105℃; VCC=2.0V | 9 | ||
| High-level input voltage | VIH | 3.15 | V | Tamb=-40℃～+105℃; VCC=4.5V | 9 | ||
| High-level input voltage | VIH | 4.2 | V | Tamb=-40℃～+105℃; VCC=6.0V | 9 | ||
| Low-level input voltage | VIL | 0.5 | V | Tamb=-40℃～+105℃; VCC=2.0V | 9 | ||
| Low-level input voltage | VIL | 1.35 | V | Tamb=-40℃～+105℃; VCC=4.5V | 9 | ||
| Low-level input voltage | VIL | 1.8 | V | Tamb=-40℃～+105℃; VCC=6.0V | 9 | ||
| High-level output voltage | VOH | 1.9 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=2.0V | 9 | ||
| High-level output voltage | VOH | 4.4 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=4.5V | 9 | ||
| High-level output voltage | VOH | 5.9 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=6.0V | 9 | ||
| High-level output voltage | VOH | 3.7 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-6.0mA; VCC=4.5V | 9 | ||
| High-level output voltage | VOH | 5.2 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-7.8mA; VCC=6.0V | 9 | ||
| Low-level output voltage | VOL | 0.1 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=20uA; VCC=2.0V | 9 | ||
| Low-level output voltage | VOL | 0.4 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=6.0mA; VCC=4.5V | 9 | ||
| Input leakage current | II | -1 | 1 | uA | Tamb=-40℃～+105℃; VI=VCC或GND; VCC=6.0V | 9 | |
| Off-state output current | IOZ | -10 | 10 | uA | Tamb=-40℃～+105℃; VI=VIH或VIL; VCC=6.0V; VO=VCC或GND | 9 | |
| Quiescent supply current | ICC | 160 | uA | Tamb=-40℃～+105℃; VI=VCC或GND; IO=0A; VCC=6.0V | 9 | ||
| Propagation delay nAn to nYn | tpd | 30 | 110 | ns | Tamb=25℃; 见图5; VCC=2.0V | 10 | |
| Propagation delay nAn to nYn | tpd | 11 | 22 | ns | Tamb=25℃; 见图5; VCC=4.5V | 10 | |
| Propagation delay nAn to nYn | tpd | 9 | 19 | ns | Tamb=25℃; 见图5; VCC=6.0V | 10 | |
| Enable time nOE to nYn | ten | 13 | 30 | ns | Tamb=25℃; 见图6; VCC=4.5V | 10 | |
| Disable time nOE to nYn | tdis | 14 | 30 | ns | Tamb=25℃; 见图6; VCC=4.5V | 10 | |
| Input capacitance | CI | 3.5 | pF | Tamb=25℃ | 7 |
CAD (KiCad official)
- Symbol:
AiP74HC244SA20.TR - Footprint:
Package_SO:SOP-20_7.5x12.8mm_P1.27mm - 3D model: SOP-20, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 2.65 mm nominal SOIC height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
aip74hc244sa20-tr-etched.step/aip74hc244sa20-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);aip74hc244sa20-tr.step/aip74hc244sa20-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Wuxi I core Elec datasheet (18 pp, sha256
626642db880a4a50, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# AiP74HC244SA20.TR
**Wuxi I core Elec** · Buffers, Drivers, Receivers, Transceivers · SOP-20
AiP74HC244SA20.TR from Wuxi I core Elec, in a SOP-20. 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 | 1OE | input | Output enable for outputs 1Y0 to 1Y3, active low; a high level forces those outputs into the high-impedance (Z) state. |
| 2 | 1A0 | input | Data input for channel 1A0, non-inverting to 1Y0; input clamp diodes allow voltages above VCC through a current-limiting resistor, with input clamp current limited to ±20 mA. |
| 3 | 2Y0 | tri_state | Three-state bus output, non-inverting from 2A0; output current is limited to ±35 mA. |
| 4 | 1A1 | input | Data input for channel 1A1, non-inverting to 1Y1; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 5 | 2Y1 | tri_state | Three-state bus output, non-inverting from 2A1; output current is limited to ±35 mA. |
| 6 | 1A2 | input | Data input for channel 1A2, non-inverting to 1Y2; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 7 | 2Y2 | tri_state | Three-state bus output, non-inverting from 2A2; output current is limited to ±35 mA. |
| 8 | 1A3 | input | Data input for channel 1A3, non-inverting to 1Y3; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 9 | 2Y3 | tri_state | Three-state bus output, non-inverting from 2A3; output current is limited to ±35 mA. |
| 10 | GND | power_in | Ground (0 V) reference. |
| 11 | 2A3 | input | Data input for channel 2A3, non-inverting to 2Y3; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 12 | 1Y3 | tri_state | Three-state bus output, non-inverting from 1A3; output current is limited to ±35 mA. |
| 13 | 2A2 | input | Data input for channel 2A2, non-inverting to 2Y2; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 14 | 1Y2 | tri_state | Three-state bus output, non-inverting from 1A2; output current is limited to ±35 mA. |
| 15 | 2A1 | input | Data input for channel 2A1, non-inverting to 2Y1; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 16 | 1Y1 | tri_state | Three-state bus output, non-inverting from 1A1; output current is limited to ±35 mA. |
| 17 | 2A0 | input | Data input for channel 2A0, non-inverting to 2Y0; input clamp diodes allow voltages above VCC through a current-limiting resistor. |
| 18 | 1Y0 | tri_state | Three-state bus output, non-inverting from 1A0; output current is limited to ±35 mA. |
| 19 | 2OE | input | Output enable for outputs 2Y0 to 2Y3, active low; a high level forces those outputs into the high-impedance (Z) state. |
| 20 | VCC | power_in | Supply voltage: 2.0 V to 6.0 V for AiP74HC244 and 4.5 V to 5.5 V for AiP74HCT244; absolute maximum 7.0 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wuxi I core Elec |
| Package | SOP-20 |
| Category | Logic |
| Pins | 20 |
## 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 | -0.5 | | 7 | V | | 6 |
| Input clamp current | IIK | -20 | | 20 | mA | VI<-0.5V 或 VI>VCC+0.5V | 6 |
| Output clamp current | IOK | -20 | | 20 | mA | VO<-0.5V 或 VO>VCC+0.5V | 6 |
| Output current | IO | -35 | | 35 | mA | -0.5V<VO<VCC+0.5V | 6 |
| Supply current | ICC | | | 70 | mA | | 6 |
| Ground current | IGND | -70 | | | mA | | 6 |
| Storage temperature | Tstg | -65 | | 150 | ℃ | | 6 |
| Total power dissipation | Ptot | | | 500 | mW | | 6 |
| Soldering temperature (SOP) | TL | | | 250 | ℃ | 10 s | 6 |
| Supply voltage | VCC | 2 | 5 | 6 | V | | 6 |
| Input voltage | VI | 0 | | | V | | 6 |
| Output voltage | VO | 0 | | | V | | 6 |
| Input rise and fall rate | Δt/ΔV | | | 625 | ns/V | VCC=2.0V | 6 |
| Input rise and fall rate | Δt/ΔV | | 1.67 | 139 | ns/V | VCC=4.5V | 6 |
| Input rise and fall rate | Δt/ΔV | | | 83 | ns/V | VCC=6.0V | 6 |
| Operating ambient temperature | Tamb | -40 | | 105 | ℃ | | 6 |
| High-level input voltage | VIH | 1.5 | 1.2 | | V | Tamb=25℃; VCC=2.0V | 7 |
| High-level input voltage | VIH | 3.15 | 2.4 | | V | Tamb=25℃; VCC=4.5V | 7 |
| High-level input voltage | VIH | 4.2 | 3.2 | | V | Tamb=25℃; VCC=6.0V | 7 |
| Low-level input voltage | VIL | | 0.8 | 0.5 | V | Tamb=25℃; VCC=2.0V | 7 |
| Low-level input voltage | VIL | | 2.1 | 1.35 | V | Tamb=25℃; VCC=4.5V | 7 |
| Low-level input voltage | VIL | | 2.8 | 1.8 | V | Tamb=25℃; VCC=6.0V | 7 |
| High-level output voltage | VOH | 1.9 | 2 | | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=2.0V | 7 |
| High-level output voltage | VOH | 4.4 | 4.5 | | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=4.5V | 7 |
| High-level output voltage | VOH | 5.9 | 6 | | V | Tamb=25℃; VI=VIH或VIL; IO=-20uA; VCC=6.0V | 7 |
| High-level output voltage | VOH | 3.98 | 4.32 | | V | Tamb=25℃; VI=VIH或VIL; IO=-6.0mA; VCC=4.5V | 7 |
| High-level output voltage | VOH | 5.48 | 5.81 | | V | Tamb=25℃; VI=VIH或VIL; IO=-7.8mA; VCC=6.0V | 7 |
| Low-level output voltage | VOL | | 0 | 0.1 | V | Tamb=25℃; VI=VIH或VIL; IO=20uA; VCC=2.0V | 7 |
| Low-level output voltage | VOL | | 0.15 | 0.26 | V | Tamb=25℃; VI=VIH或VIL; IO=6.0mA; VCC=4.5V | 7 |
| Low-level output voltage | VOL | | 0.16 | 0.26 | V | Tamb=25℃; VI=VIH或VIL; IO=7.8mA; VCC=6.0V | 7 |
| Input leakage current | II | -0.1 | | 0.1 | uA | Tamb=25℃; VI=VCC或GND; VCC=6.0V | 7 |
| Off-state output current | IOZ | -0.5 | | 0.5 | uA | Tamb=25℃; VI=VIH或VIL; VCC=6.0V; VO=VCC或GND | 7 |
| Quiescent supply current | ICC | | | 8 | uA | Tamb=25℃; VI=VCC或GND; IO=0A; VCC=6.0V | 7 |
| High-level input voltage | VIH | 1.5 | | | V | Tamb=-40℃～+105℃; VCC=2.0V | 9 |
| High-level input voltage | VIH | 3.15 | | | V | Tamb=-40℃～+105℃; VCC=4.5V | 9 |
| High-level input voltage | VIH | 4.2 | | | V | Tamb=-40℃～+105℃; VCC=6.0V | 9 |
| Low-level input voltage | VIL | | | 0.5 | V | Tamb=-40℃～+105℃; VCC=2.0V | 9 |
| Low-level input voltage | VIL | | | 1.35 | V | Tamb=-40℃～+105℃; VCC=4.5V | 9 |
| Low-level input voltage | VIL | | | 1.8 | V | Tamb=-40℃～+105℃; VCC=6.0V | 9 |
| High-level output voltage | VOH | 1.9 | | | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=2.0V | 9 |
| High-level output voltage | VOH | 4.4 | | | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=4.5V | 9 |
| High-level output voltage | VOH | 5.9 | | | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-20uA; VCC=6.0V | 9 |
| High-level output voltage | VOH | 3.7 | | | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-6.0mA; VCC=4.5V | 9 |
| High-level output voltage | VOH | 5.2 | | | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=-7.8mA; VCC=6.0V | 9 |
| Low-level output voltage | VOL | | | 0.1 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=20uA; VCC=2.0V | 9 |
| Low-level output voltage | VOL | | | 0.4 | V | Tamb=-40℃～+105℃; VI=VIH或VIL; IO=6.0mA; VCC=4.5V | 9 |
| Input leakage current | II | -1 | | 1 | uA | Tamb=-40℃～+105℃; VI=VCC或GND; VCC=6.0V | 9 |
| Off-state output current | IOZ | -10 | | 10 | uA | Tamb=-40℃～+105℃; VI=VIH或VIL; VCC=6.0V; VO=VCC或GND | 9 |
| Quiescent supply current | ICC | | | 160 | uA | Tamb=-40℃～+105℃; VI=VCC或GND; IO=0A; VCC=6.0V | 9 |
| Propagation delay nAn to nYn | tpd | | 30 | 110 | ns | Tamb=25℃; 见图5; VCC=2.0V | 10 |
| Propagation delay nAn to nYn | tpd | | 11 | 22 | ns | Tamb=25℃; 见图5; VCC=4.5V | 10 |
| Propagation delay nAn to nYn | tpd | | 9 | 19 | ns | Tamb=25℃; 见图5; VCC=6.0V | 10 |
| Enable time nOE to nYn | ten | | 13 | 30 | ns | Tamb=25℃; 见图6; VCC=4.5V | 10 |
| Disable time nOE to nYn | tdis | | 14 | 30 | ns | Tamb=25℃; 见图6; VCC=4.5V | 10 |
| Input capacitance | CI | | 3.5 | | pF | Tamb=25℃ | 7 |
## CAD (KiCad official)
- Symbol: `AiP74HC244SA20.TR`
- Footprint: `Package_SO:SOP-20_7.5x12.8mm_P1.27mm`
- 3D model: SOP-20, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 2.65 mm nominal SOIC height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `aip74hc244sa20-tr-etched.step` / `aip74hc244sa20-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `aip74hc244sa20-tr.step` / `aip74hc244sa20-tr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Wuxi I core Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590414490547761152) (18 pp, sha256 `626642db880a4a50`, retrieved 2026-10-18, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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).
[Datasheet PDF](docs/aip74hc244sa20-tr-datasheet.pdf)