component
SN74HCS244QPWRQ1
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. 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
markdownSN74HCS244QPWRQ1
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74HCS244QPWRQ1 from Texas Instruments, in a TSSOP-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 | Bank 1 output enable (active low); Schmitt-trigger input with 0-VCC voltage range |
| 2 | 1A1 | input | Bank 1 channel 1 input; Schmitt-trigger input with 0-VCC voltage range |
| 3 | 2Y4 | tri_state | Bank 2 channel 4 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 4 | 1A2 | input | Bank 1 channel 2 input; Schmitt-trigger input with 0-VCC voltage range |
| 5 | 2Y3 | tri_state | Bank 2 channel 3 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 6 | 1A3 | input | Bank 1 channel 3 input; Schmitt-trigger input with 0-VCC voltage range |
| 7 | 2Y2 | tri_state | Bank 2 channel 2 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 8 | 1A4 | input | Bank 1 channel 4 input; Schmitt-trigger input with 0-VCC voltage range |
| 9 | 2Y1 | tri_state | Bank 2 channel 1 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 10 | GND | power_in | Ground reference (0V) |
| 11 | 2A1 | input | Bank 2 channel 1 input; Schmitt-trigger input with 0-VCC voltage range |
| 12 | 1Y4 | tri_state | Bank 1 channel 4 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 13 | 2A2 | input | Bank 2 channel 2 input; Schmitt-trigger input with 0-VCC voltage range |
| 14 | 1Y3 | tri_state | Bank 1 channel 3 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 15 | 2A3 | input | Bank 2 channel 3 input; Schmitt-trigger input with 0-VCC voltage range |
| 16 | 1Y2 | tri_state | Bank 1 channel 2 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 17 | 2A4 | input | Bank 2 channel 4 input; Schmitt-trigger input with 0-VCC voltage range |
| 18 | 1Y1 | tri_state | Bank 1 channel 1 tri-state output; VOH 5.4V minimum, VOL 0.33V maximum at ±7.8mA drive with 6V supply |
| 19 | 2OE | input | Bank 2 output enable (active low); Schmitt-trigger input with 0-VCC voltage range |
| 20 | VCC | power_in | Positive supply voltage; 2V to 6V recommended operating range |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74HCS244QPWRQ1 - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74hcs244qpwrq1-etched.step/sn74hcs244qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hcs244qpwrq1.step/sn74hcs244qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
856fd127df5278ef, retrieved 2026-09-27, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).