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CY74FCT244DTSOCT
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. 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
markdownCY74FCT244DTSOCT
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil
CY74FCT244DTSOCT from Texas Instruments, in a SOIC-20-300mil. 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 | OEA | input | Active-low output enable for channel A; output drivers are disabled and in high-impedance state when this pin is held high. |
| 2 | DA0 | input | Data input bit 0 for channel A; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 3 | OB0 | tri_state | Data output bit 0 for channel B; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 4 | DA1 | input | Data input bit 1 for channel A; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 5 | OB1 | tri_state | Data output bit 1 for channel B; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 6 | DA2 | input | Data input bit 2 for channel A; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 7 | OB2 | tri_state | Data output bit 2 for channel B; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 8 | DA3 | input | Data input bit 3 for channel A; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 9 | OB3 | tri_state | Data output bit 3 for channel B; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 10 | GND | power_in | Circuit ground reference; connection point to negative power supply. |
| 11 | DB3 | input | Data input bit 3 for channel B; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 12 | OA3 | tri_state | Data output bit 3 for channel A; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 13 | DB2 | input | Data input bit 2 for channel B; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 14 | OA2 | tri_state | Data output bit 2 for channel A; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 15 | DB1 | input | Data input bit 1 for channel B; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 16 | OA1 | tri_state | Data output bit 1 for channel A; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 17 | DB0 | input | Data input bit 0 for channel B; TTL-compatible input levels with minimum high threshold VIH = 2V and maximum low threshold VIL = 0.8V. |
| 18 | OA0 | tri_state | Data output bit 0 for channel A; 3-state output with VOH minimum 2.4V and VOL maximum 0.55V, can source 32mA or sink 64mA. |
| 19 | OEB | input | Active-low output enable for channel B; output drivers are disabled and in high-impedance state when this pin is held high. |
| 20 | VCC | power_in | Positive supply voltage input; operating range 4.75V to 5.25V for the 0-70°C temperature grade variant. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
CY74FCT244DTSOCT - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
cy74fct244dtsoct-etched.step/cy74fct244dtsoct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cy74fct244dtsoct.step/cy74fct244dtsoct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
0371a514e0948724, retrieved 2026-09-30, tier: lcsc) - 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).