component
SN74AHCT244DBR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74AHCT244DBR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SSOP-20-208mil
SN74AHCT244DBR from Texas Instruments, in a SSOP-20-208mil. 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 input for driver 1 |
| 2 | 1A1 | input | Input 1A1 |
| 3 | 2Y4 | tri_state | Tri-state output 2Y4 |
| 4 | 1A2 | input | Input 1A2 |
| 5 | 2Y3 | tri_state | Tri-state output 2Y3 |
| 6 | 1A3 | input | Input 1A3 |
| 7 | 2Y2 | tri_state | Tri-state output 2Y2 |
| 8 | 1A4 | input | Input 1A4 |
| 9 | 2Y1 | tri_state | Tri-state output 2Y1 |
| 10 | GND | power_in | Ground pin |
| 11 | 2A1 | input | Input 2A1 |
| 12 | 1Y4 | tri_state | Tri-state output 1Y4 |
| 13 | 2A2 | input | Input 2A2 |
| 14 | 1Y3 | tri_state | Tri-state output 1Y3 |
| 15 | 2A3 | input | Input 2A3 |
| 16 | 1Y2 | tri_state | Tri-state output 1Y2 |
| 17 | 2A4 | input | Input 2A4 |
| 18 | 1Y1 | tri_state | Tri-state output 1Y1 |
| 19 | 2OE | input | Output enable input for driver 2 |
| 20 | VCC | power_out | Power supply pin |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-208mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74AHCT244DBR - Footprint:
Package_SO:SSOP-20_5.3x7.2mm_P0.65mm - 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74ahct244dbr-etched.step/sn74ahct244dbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahct244dbr.step/sn74ahct244dbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
2998c52d90c3b53b, retrieved 2026-10-06, 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-4-5-20251001(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).