CY74FCT244ATPCE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CY74FCT244ATPCE4 is an 8-channel non-inverting tri-state bus buffer/line driver in a 20-pin PDIP package. It operates from a 4.5 V to 5.5 V supply, supports up to 64 mA output current, and features TTL-compatible inputs. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CY74FCT244ATPCE4 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 tri-state outputs with active-low output enable for flexible bus control
- High-drive 64 mA output current capability for robust line driving in 5 V TTL-compatible systems
- FCT-family CMOS technology with 50 pF load capacitance rating and low propagation delay for high-speed bus applications
Applications
The CY74FCT244ATPCE4 is well suited for bus isolation and signal buffering in industrial control systems, embedded computing backplanes, and memory interface circuits. Its 8-channel tri-state architecture allows multiple drivers to share a common data bus without contention. The 20-pin PDIP package simplifies through-hole prototyping and legacy-compatible board designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-PDIP-T20 |
| 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 | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage and output current does CY74FCT244ATPCE4 support?
The CY74FCT244ATPCE4 operates from a 4.5 V to 5.5 V supply rail and can sink up to 64 mA per output, making it suitable for driving heavily loaded TTL or CMOS bus lines across 8 channels simultaneously.
How does the tri-state enable control work on CY74FCT244ATPCE4 and when would you use it in a multi-driver bus?
The device has an active-low ENABLE input; asserting it LOW connects all 8 output drivers to the bus, while pulling it HIGH forces all outputs to a high-impedance state. This lets multiple CY74FCT244ATPCE4 devices share a single 8-bit bus without conflict, which is essential in backplane or memory-expansion designs operating at 5 V.
Is CY74FCT244ATPCE4 RoHS-compliant, and what does the e4 JESD-609 code indicate?
Yes, the part is RoHS-compliant and lead-free. The JESD-609 code e4 indicates the device is rated for a maximum soldering temperature of 260 °C in a Pb-free process, with an MSL rating consistent with standard through-hole PDIP components.
Which board designs benefit most from the 20-pin PDIP package of CY74FCT244ATPCE4 compared to surface-mount alternatives?
The 20-pin PDIP package suits prototype boards, DIP-socket test fixtures, and legacy industrial systems where through-hole assembly is required. Its 2.54 mm pin pitch accommodates hand-soldering and breadboard use, while the 64 mA drive strength and 50 pF load rating remain identical to the SOIC surface-mount variants.
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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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