CY74FCT244ATSOCTE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CY74FCT244ATSOCTE4 is an 8-channel non-inverting 3-state CMOS buffer and line driver from Texas Instruments in the FCT logic family. It features two active-low output enable inputs, 64 mA output sink current, and operates at 5 V in a 20-pin SOIC package for high-drive bus buffering applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CY74FCT244ATSOCTE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-channel non-inverting unidirectional buffer with 3-state output control for bus isolation
- High output drive current: 64 mA sink (IOL) per channel for heavy bus load driving
- Two active-low output enable inputs for flexible dual-bank bus enable configuration
- FCT logic family: 5 V operation with fast CMOS switching speed comparable to ACT/BCT
- 20-pin SOIC in tape-and-reel (T/R) for automated surface-mount PCB assembly
Applications
The CY74FCT244ATSOCTE4 is used in microprocessor address and data bus buffering, memory array driving, and VMEbus/PCI backplane interface circuits where high output drive current and 3-state bus sharing are needed. It is also employed in FPGA development boards and embedded system prototypes for robust 5 V bus line driving with bidirectional bus isolation between subsystems.
Specifications
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.2mA |
| Prop. Delay@Nom-Sup | 4.6ns |
| Propagation Delay (tpd) | 4.6ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CY74FCT244ATSOCTE4:
Frequently Asked Questions
What is the output drive current of the CY74FCT244ATSOCTE4?
The CY74FCT244ATSOCTE4 can sink up to 64 mA (IOL) per output channel, which is significantly higher than standard 8 mA CMOS drivers. This high drive strength makes it suitable for heavy bus loads such as long PCB traces, multiple parallel device inputs, and terminated backplane bus lines.
How are the output enables configured on the CY74FCT244ATSOCTE4?
The CY74FCT244ATSOCTE4 has two active-low output enable pins (OE1 and OE2), each controlling a bank of four outputs. Both enables must be asserted to enable all 8 channels, or they can be used to individually enable or disable groups of 4 outputs for split-bus applications.
What logic family does the CY74FCT244ATSOCTE4 belong to?
The CY74FCT244ATSOCTE4 belongs to the FCT (Fast CMOS Technology) logic family, which provides fast propagation delays similar to the ACT family but with higher drive current capability, designed for 5 V bus buffering in high-performance digital systems.
What package is the CY74FCT244ATSOCTE4 available in?
The CY74FCT244ATSOCTE4 is packaged in a 20-pin SOIC (Small Outline IC) surface-mount package, supplied in tape-and-reel (T/R suffix) for high-volume automated SMT assembly, and carries the E4 green suffix indicating RoHS-compliant lead-free construction.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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