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CY74FCT244TSOCT
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
markdownCY74FCT244TSOCT
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil
CY74FCT244TSOCT 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 the A bank (OA0-OA3); outputs are high-impedance when OEA is high, and unused inputs must be held at VCC or GND. |
| 2 | DA0 | input | Data input A0, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OA0. |
| 3 | OB0 | tri_state | 3-state output B0 following DB0, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 4 | DA1 | input | Data input A1, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OA1. |
| 5 | OB1 | tri_state | 3-state output B1 following DB1, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 6 | DA2 | input | Data input A2, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OA2. |
| 7 | OB2 | tri_state | 3-state output B2 following DB2, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 8 | DA3 | input | Data input A3, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OA3. |
| 9 | OB3 | tri_state | 3-state output B3 following DB3, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 10 | GND | power_in | Ground reference for the device. |
| 11 | DB3 | input | Data input B3, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OB3. |
| 12 | OA3 | tri_state | 3-state output A3 following DA3, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 13 | DB2 | input | Data input B2, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OB2. |
| 14 | OA2 | tri_state | 3-state output A2 following DA2, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 15 | DB1 | input | Data input B1, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OB1. |
| 16 | OA1 | tri_state | 3-state output A1 following DA1, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 17 | DB0 | input | Data input B0, TTL-compatible with VIH min 2 V and VIL max 0.8 V, buffered to OB0. |
| 18 | OA0 | tri_state | 3-state output A0 following DA0, with 64 mA sink and 32 mA source drive for CY74FCT244T. |
| 19 | OEB | input | Active-low output enable for the B bank (OB0-OB3); outputs are high-impedance when OEB is high, and unused inputs must be held at VCC or GND. |
| 20 | VCC | power_in | Supply voltage, 4.75 V to 5.25 V recommended for CY74FCT244T (absolute maximum -0.5 V to 7 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
CY74FCT244TSOCT - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
cy74fct244tsoct-etched.step/cy74fct244tsoct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cy74fct244tsoct.step/cy74fct244tsoct.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 2026-10-03, 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).