component
SN74LVC2244ADBQR
Public Made by Adomby adom
Texas Instruments Logic ICs, SSOP-20-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SN74LVC2244ADBQR
Texas Instruments · Logic ICs · SSOP-20-150mil
SN74LVC2244ADBQR from Texas Instruments, in a SSOP-20-150mil. 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 1 for the first buffer section (1A1-1A4 to 1Y1-1Y4); the datasheet pin table does not state the active level. |
| 2 | 1A1 | input | Data input 1A1 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 3 | 2Y4 | output | Output 2Y4 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 4 | 1A2 | input | Data input 1A2 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 5 | 2Y3 | output | Output 2Y3 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 6 | 1A3 | input | Data input 1A3 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 7 | 2Y2 | output | Output 2Y2 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 8 | 1A4 | input | Data input 1A4 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 9 | 2Y1 | output | Output 2Y1 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 10 | GND | power_in | Ground pin. |
| 11 | 2A1 | input | Data input 2A1 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 12 | 1Y4 | output | Output 1Y4 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 13 | 2A2 | input | Data input 2A2 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 14 | 1Y3 | output | Output 1Y3 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 15 | 2A3 | input | Data input 2A3 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 16 | 1Y2 | output | Output 1Y2 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 17 | 2A4 | input | Data input 2A4 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 18 | 1Y1 | output | Output 1Y1 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 19 | 2OE | input | Output Enable 2 for the second buffer section (2A1-2A4 to 2Y1-2Y4); the datasheet pin table does not state the active level. |
| 20 | VCC | power_in | Power supply pin; the device operates from 1.65 V to 3.6 V VCC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-150mil |
| Category | Logic ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| High-level output voltage | VOH | 1.2 | V | IOH = -2 mA; VCC = 1.65 V; -40°C to 125°C | 6 | ||
| High-level output voltage | VOH | 1.7 | V | IOH = -4 mA; VCC = 2.3 V; -40°C to 125°C | 6 | ||
| High-level output voltage | VOH | 2.2 | V | IOH = -4 mA; VCC = 2.7 V; -40°C to 125°C | 6 | ||
| High-level output voltage | VOH | 2.4 | V | IOH = -6 mA; VCC = 3 V; -40°C to 125°C | 6 | ||
| High-level output voltage | VOH | 2 | V | IOH = -8 mA; VCC = 2.7 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.2 | V | IOL = 100 μA; VCC = 1.65 V to 3.6 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.45 | V | IOL = 2 mA; VCC = 1.65 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.7 | V | IOL = 4 mA; VCC = 2.3 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.4 | V | IOL = 4 mA; VCC = 2.7 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.55 | V | IOL = 6 mA; VCC = 3 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.6 | V | IOL = 8 mA; VCC = 2.7 V; -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.8 | V | IOL = 12 mA; VCC = 3 V; -40°C to 125°C | 6 | ||
| Input current | II | -5 | 5 | μA | VI = 0 to 5.5 V; VCC = 3.6 V; -40°C to 125°C | 6 | |
| Power-off leakage current | Ioff | -10 | 10 | μA | VI or VO = 5.5 V; VCC = 0; -40°C to 125°C | 6 | |
| High-impedance output leakage current | IOZ | -10 | 10 | μA | VO = 0 to 5.5 V; VCC = 3.6 V; -40°C to 125°C | 6 | |
| Quiescent supply current | ICC | 10 | μA | VI = VCC or GND; IO = 0; VCC = 3.6 V; -40°C to 125°C | 6 | ||
| Additional quiescent supply current per input | ΔICC | 500 | μA | One input at VCC, 0.6 V, other inputs at VCC or GND; VCC = 2.7 V to 3.6 V; -40°C to 125°C | 6 | ||
| Propagation delay A to Y | tpd | 1.5 | 6.5 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 | |
| Enable time OE to Y | ten | 1 | 7.8 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 | |
| Disable time OE to Y | tdis | 1.5 | 7.6 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 | |
| Supply voltage | VCC | 1.65 | 3.6 | V | Operating | 5 | |
| Supply voltage data retention | VCC | 1.5 | V | Data retention only | 5 | ||
| High-level input voltage | VIH | 1.7 | V | VCC = 2.3 V to 2.7 V | 5 | ||
| High-level input voltage | VIH | 2 | V | VCC = 2.7 V to 3.6 V | 5 | ||
| Low-level input voltage | VIL | 0.7 | V | VCC = 2.3 V to 2.7 V | 5 | ||
| Low-level input voltage | VIL | 0.8 | V | VCC = 2.7 V to 3.6 V | 5 | ||
| Input voltage | VI | 0 | 5.5 | V | 5 | ||
| Output voltage | VO | 0 | V | High or low state | 5 | ||
| Output voltage | VO | 0 | 5.5 | V | 3-state | 5 | |
| High-level output current | IOH | -2 | mA | VCC = 1.65 V | 5 | ||
| High-level output current | IOH | -4 | mA | VCC = 2.3 V | 5 | ||
| High-level output current | IOH | -8 | mA | VCC = 2.7 V | 5 | ||
| High-level output current | IOH | -12 | mA | VCC = 3 V | 5 | ||
| Low-level output current | IOL | 2 | mA | VCC = 1.65 V | 5 | ||
| Low-level output current | IOL | 4 | mA | VCC = 2.3 V | 5 | ||
| Low-level output current | IOL | 8 | mA | VCC = 2.7 V | 5 | ||
| Low-level output current | IOL | 12 | mA | VCC = 3 V | 5 | ||
| Input transition rise or fall rate | Δt/Δv | 10 | ns/V | 5 | |||
| Operating free-air temperature | TA | -40 | 125 | °C | 5 | ||
| Supply voltage range | VCC | -0.5 | 6.5 | V | 4 | ||
| Input voltage range | VI | -0.5 | 6.5 | V | 4 | ||
| Voltage range applied to any output in the high-impedance or power-off state | VO | -0.5 | 6.5 | V | 4 | ||
| Voltage range applied to any output in the high or low state | VO | -0.5 | V | High or low state | 4 | ||
| Input clamp current | IIK | -50 | mA | VI < 0 | 4 | ||
| Output clamp current | IOK | -50 | mA | VO < 0 | 4 | ||
| Continuous output current | IO | -50 | 50 | mA | 4 | ||
| Continuous current through VCC or GND | -100 | 100 | mA | 4 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 4 | ||
| Junction-to-ambient thermal resistance (DBQ package) | RθJA | 94.7 | °C/W | DBQ package column | 5 |
CAD (KiCad official)
- Symbol:
SN74LVC2244ADBQR - Footprint:
Package_SO:SSOP-20_3.9x8.7mm_P0.635mm - 3D model: SSOP-20-150mil (KiCad packages3D, STEP)
- 3D model files:
sn74lvc2244adbqr-etched.step/sn74lvc2244adbqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74lvc2244adbqr.step/sn74lvc2244adbqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
5ef8b4b7332c1b8f, retrieved 2026-10-29, tier: manufacturer) - 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).
# SN74LVC2244ADBQR
**Texas Instruments** · Logic ICs · SSOP-20-150mil
SN74LVC2244ADBQR from Texas Instruments, in a SSOP-20-150mil. 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 1 for the first buffer section (1A1-1A4 to 1Y1-1Y4); the datasheet pin table does not state the active level. |
| 2 | 1A1 | input | Data input 1A1 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 3 | 2Y4 | output | Output 2Y4 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 4 | 1A2 | input | Data input 1A2 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 5 | 2Y3 | output | Output 2Y3 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 6 | 1A3 | input | Data input 1A3 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 7 | 2Y2 | output | Output 2Y2 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 8 | 1A4 | input | Data input 1A4 of the first buffer section; inputs accept voltages up to 5.5 V. |
| 9 | 2Y1 | output | Output 2Y1 of the second buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 10 | GND | power_in | Ground pin. |
| 11 | 2A1 | input | Data input 2A1 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 12 | 1Y4 | output | Output 1Y4 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 13 | 2A2 | input | Data input 2A2 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 14 | 1Y3 | output | Output 1Y3 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 15 | 2A3 | input | Data input 2A3 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 16 | 1Y2 | output | Output 1Y2 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 17 | 2A4 | input | Data input 2A4 of the second buffer section; inputs accept voltages up to 5.5 V. |
| 18 | 1Y1 | output | Output 1Y1 of the first buffer section; outputs have an equivalent 26-Ω series resistor so no external resistor is required. |
| 19 | 2OE | input | Output Enable 2 for the second buffer section (2A1-2A4 to 2Y1-2Y4); the datasheet pin table does not state the active level. |
| 20 | VCC | power_in | Power supply pin; the device operates from 1.65 V to 3.6 V VCC. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-150mil |
| Category | Logic ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| High-level output voltage | VOH | 1.2 | | | V | IOH = -2 mA; VCC = 1.65 V; -40°C to 125°C | 6 |
| High-level output voltage | VOH | 1.7 | | | V | IOH = -4 mA; VCC = 2.3 V; -40°C to 125°C | 6 |
| High-level output voltage | VOH | 2.2 | | | V | IOH = -4 mA; VCC = 2.7 V; -40°C to 125°C | 6 |
| High-level output voltage | VOH | 2.4 | | | V | IOH = -6 mA; VCC = 3 V; -40°C to 125°C | 6 |
| High-level output voltage | VOH | 2 | | | V | IOH = -8 mA; VCC = 2.7 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.2 | V | IOL = 100 μA; VCC = 1.65 V to 3.6 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.45 | V | IOL = 2 mA; VCC = 1.65 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.7 | V | IOL = 4 mA; VCC = 2.3 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.4 | V | IOL = 4 mA; VCC = 2.7 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.55 | V | IOL = 6 mA; VCC = 3 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.6 | V | IOL = 8 mA; VCC = 2.7 V; -40°C to 125°C | 6 |
| Low-level output voltage | VOL | | | 0.8 | V | IOL = 12 mA; VCC = 3 V; -40°C to 125°C | 6 |
| Input current | II | -5 | | 5 | μA | VI = 0 to 5.5 V; VCC = 3.6 V; -40°C to 125°C | 6 |
| Power-off leakage current | Ioff | -10 | | 10 | μA | VI or VO = 5.5 V; VCC = 0; -40°C to 125°C | 6 |
| High-impedance output leakage current | IOZ | -10 | | 10 | μA | VO = 0 to 5.5 V; VCC = 3.6 V; -40°C to 125°C | 6 |
| Quiescent supply current | ICC | | | 10 | μA | VI = VCC or GND; IO = 0; VCC = 3.6 V; -40°C to 125°C | 6 |
| Additional quiescent supply current per input | ΔICC | | | 500 | μA | One input at VCC, 0.6 V, other inputs at VCC or GND; VCC = 2.7 V to 3.6 V; -40°C to 125°C | 6 |
| Propagation delay A to Y | tpd | 1.5 | | 6.5 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 |
| Enable time OE to Y | ten | 1 | | 7.8 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 |
| Disable time OE to Y | tdis | 1.5 | | 7.6 | ns | VCC = 3.3 V ± 0.3 V; -40°C to 125°C; see Figure 3 | 6 |
| Supply voltage | VCC | 1.65 | | 3.6 | V | Operating | 5 |
| Supply voltage data retention | VCC | 1.5 | | | V | Data retention only | 5 |
| High-level input voltage | VIH | 1.7 | | | V | VCC = 2.3 V to 2.7 V | 5 |
| High-level input voltage | VIH | 2 | | | V | VCC = 2.7 V to 3.6 V | 5 |
| Low-level input voltage | VIL | | | 0.7 | V | VCC = 2.3 V to 2.7 V | 5 |
| Low-level input voltage | VIL | | | 0.8 | V | VCC = 2.7 V to 3.6 V | 5 |
| Input voltage | VI | 0 | | 5.5 | V | | 5 |
| Output voltage | VO | 0 | | | V | High or low state | 5 |
| Output voltage | VO | 0 | | 5.5 | V | 3-state | 5 |
| High-level output current | IOH | -2 | | | mA | VCC = 1.65 V | 5 |
| High-level output current | IOH | -4 | | | mA | VCC = 2.3 V | 5 |
| High-level output current | IOH | -8 | | | mA | VCC = 2.7 V | 5 |
| High-level output current | IOH | -12 | | | mA | VCC = 3 V | 5 |
| Low-level output current | IOL | | | 2 | mA | VCC = 1.65 V | 5 |
| Low-level output current | IOL | | | 4 | mA | VCC = 2.3 V | 5 |
| Low-level output current | IOL | | | 8 | mA | VCC = 2.7 V | 5 |
| Low-level output current | IOL | | | 12 | mA | VCC = 3 V | 5 |
| Input transition rise or fall rate | Δt/Δv | | | 10 | ns/V | | 5 |
| Operating free-air temperature | TA | -40 | | 125 | °C | | 5 |
| Supply voltage range | VCC | -0.5 | | 6.5 | V | | 4 |
| Input voltage range | VI | -0.5 | | 6.5 | V | | 4 |
| Voltage range applied to any output in the high-impedance or power-off state | VO | -0.5 | | 6.5 | V | | 4 |
| Voltage range applied to any output in the high or low state | VO | -0.5 | | | V | High or low state | 4 |
| Input clamp current | IIK | -50 | | | mA | VI < 0 | 4 |
| Output clamp current | IOK | -50 | | | mA | VO < 0 | 4 |
| Continuous output current | IO | -50 | | 50 | mA | | 4 |
| Continuous current through VCC or GND | | -100 | | 100 | mA | | 4 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 4 |
| Junction-to-ambient thermal resistance (DBQ package) | RθJA | | 94.7 | | °C/W | DBQ package column | 5 |
## CAD (KiCad official)
- Symbol: `SN74LVC2244ADBQR`
- Footprint: `Package_SO:SSOP-20_3.9x8.7mm_P0.635mm`
- 3D model: SSOP-20-150mil (KiCad packages3D, STEP)
- 3D model files: `sn74lvc2244adbqr-etched.step` / `sn74lvc2244adbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc2244adbqr.step` / `sn74lvc2244adbqr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74lvc2244a.pdf) (30 pp, sha256 `5ef8b4b7332c1b8f`, retrieved 2026-10-29, tier: manufacturer)
- **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/sn74lvc2244adbqr-datasheet.pdf)