CY54FCT244ATDMB Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CY54FCT244ATDMB is an 8-channel non-inverting CMOS bus driver with 3-state outputs in a 20-pin CDIP ceramic package, supporting 64 mA output sink current and 50 pF load capacitance. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CY54FCT244ATDMB Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CY54FCT244ATDMB?
- 8-channel unidirectional FCT CMOS bus driver with 3-state outputs for reliable bus isolation
- 64 mA output sink current (I_OL) enables direct drive of heavily loaded backplane bus lines
- 20-pin ceramic DIP package provides enhanced reliability for military and high-temperature environments
What is CY54FCT244ATDMB used for?
The CY54FCT244ATDMB is used in military, aerospace, and ruggedized industrial systems where ceramic package construction and FCT-speed bus driving are required. Its 3-state outputs and active-low enable control make it ideal for data bus buffering, address line driving, and memory interface expansion in fault-tolerant embedded designs.
What are the specifications of CY54FCT244ATDMB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | FCT |
| JESD-30 Code | R-GDIP-T20 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 4 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.2mA |
| Prop. Delay@Nom-Sup | 5.1ns |
| Propagation Delay (tpd) | 5.1ns |
| Qualification Status | Not Qualified |
| Screening Level | 38535Q/M;38534H;883B |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CY54FCT244ATDMB datasheet?
CY54FCT244ATDMB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CY54FCT244ATDMB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 64 mA output sink current of the CY54FCT244ATDMB support heavily loaded bus lines?
The CY54FCT244ATDMB delivers a maximum low-level output current (I_OL) of 64 mA, which is sufficient to drive bus lines loaded with up to 50 pF per channel while meeting FCT switching-speed specifications. This high drive strength ensures valid logic-low levels are maintained when multiple receiver inputs and PCB trace capacitance are aggregated on a shared data bus, reducing timing violations in fast CMOS systems.
Why is the ceramic 20-pin CDIP package of the CY54FCT244ATDMB preferred in military-grade designs over plastic DIP?
Ceramic DIP packages tolerate operating temperatures from -55 °C to +125 °C and provide hermetic sealing against moisture and corrosive environments, making the CY54FCT244ATDMB suitable for MIL-STD-compliant systems. Plastic packages typically derate at temperatures above 85 °C and are susceptible to humidity-driven failure modes that ceramic construction eliminates over decades-long service intervals.
In a data bus expansion design, how do the 3-state outputs of the CY54FCT244ATDMB allow multiple drivers to share one bus?
The 3-state (high-impedance) output mode, activated by the active-low enable pin, disconnects all 8 output channels from the bus simultaneously, allowing only the selected driver to assert data at any given time. This mechanism lets designers place multiple CY54FCT244ATDMB devices on the same 8-bit bus with zero contention risk, enabling bus expansion to 16, 24, or 32 bits using parallel devices.
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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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