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Product Detailed Parameters
- Description：OCTAL D-TYPE REGISTERS WITH 3-ST
- Series：54FCT
- Mfr：Texas Instruments
- Package：Tube
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：11ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：12mA, 32mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：200 µA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：20-CDIP
- Package / Case：20-CDIP (0.300", 7.62mm)
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The CY54FCT374TDMB is an octal D-type register with three-state outputs manufactured by Texas Instruments. It belongs to the FCT logic series and utilizes a 20-lead ceramic dual in-line package (CDIP). The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -55°C to +125°C. It features non-inverting true output polarity and is designed for high-speed digital applications requiring robust performance in extreme thermal environments.
Feature Summary
- Octal D-type register architecture providing eight independent data storage elements
- Three-state outputs enabling direct bus connection without external transceivers
- Ceramic metal-sealed construction ensuring reliability in harsh conditions
- Wide industrial and military temperature rating for extended operational stability
Applications
- High-reliability military aerospace systems
- Industrial control equipment requiring extreme temperature tolerance
- Harsh environment communication interfaces
- Defense electronics and avionics subsystems
Procurement Notes
Verify that the specific part number suffix indicates the ceramic CDIP package variant, as plastic or leaded alternatives may differ in thermal handling. Confirm RoHS compliance status if required for specific regulatory frameworks, noting that some legacy ceramic variants may have distinct environmental declarations. Ensure the supplier provides traceable documentation regarding the manufacturer's origin and lot code integrity for critical deployment scenarios.
Selection Notes
Select this component when ceramic packaging and extended temperature ranges are mandatory due to harsh environmental exposure. Compare against plastic SOIC or SSOP variants if thermal dissipation and mechanical ruggedness are primary concerns. Consider the higher cost associated with ceramic packages versus standard plastic equivalents when budget constraints exist alongside performance requirements.
Part Context
This component is part of the broader CY54/CY74FCT374 family of octal registers. While functionally similar to other FCT series devices, the specific TDMB suffix denotes the ceramic dual in-line package configuration. This distinguishes it from surface-mount variants like the ATSOC or TQCT, offering superior physical durability and thermal stability for specialized industrial or defense applications.
Replacement Considerations
CY54FCT374ATDM
FAQ
What is the maximum operating temperature for this device?
The maximum operating temperature is +125°C.
Does this device support live insertion?
Yes, the outputs are powered-off disabled to permit live insertion.
