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CY29FCT818ATDMB
Texas Instruments
DIAGNOSTIC SCAN REGISTER 24-CDIP
2448 Pcs New Original In Stock
Shift Register, Pipeline 1 Element 8 Bit 24-CDIP
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Minimum 1
5.0 / 5.0
- (273 Ratings)
CY29FCT818ATDMB
Product Overview
11232895
DiGi Electronics Part Number
CY29FCT818ATDMB-DGManufacturer
Texas Instruments
CY29FCT818ATDMB
Description
DIAGNOSTIC SCAN REGISTER 24-CDIPInventory
2448 Pcs New Original In Stock
Shift Register, Pipeline 1 Element 8 Bit 24-CDIP
Quantity
Minimum 1
Minimum 1
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Warranty & Returns
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CY29FCT818ATDMB Technical Specifications
Category
Logic, Shift Registers
Packaging
-
Series
29FCT
Product Status
Active
Logic Type
Register, Pipeline
Output Type
Tri-State
Number of Elements
1
Number of Bits per Element
8
Function
-
Voltage - Supply
4.75V ~ 5.25V
Operating Temperature
-55°C ~ 125°C
Grade
-
Qualification
-
Mounting Type
Through Hole
Package / Case
24-CDIP (0.300", 7.62mm)
Supplier Device Package
24-CDIP
Datasheet & Documents
HTML Datasheet
CY29FCT818ATDMB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
Not Applicable
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-CY29FCT818ATDMB
Standard Package
1
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
가격도 착하고 친절한 서비스 덕분에 만족도가 굉장히 높습니다.
Dec 02, 2025
Je recommande vivement leur service pour leur rapidité et leur support.
Dec 02, 2025
L'expédition est constamment rapide, ce qui montre leur engagement envers la satisfaction client.
Dec 02, 2025
The combination of friendly service and speedy logistics made this a five-star experience.
Dec 02, 2025
I found the website's layout to be very logical, allowing me to locate sections easily.
Dec 02, 2025
I appreciate their proactive communication and follow-up after purchases.
Dec 02, 2025
Customer service representatives are courteous and attentive to detailed questions.
Dec 02, 2025
We value their reliable delivery schedule and professional packing methods.
Dec 02, 2025
The after-sales support from DiGi Electronics is prompt and professional, resolving issues swiftly.
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Frequently Asked Questions (FAQ)
Can the CY29FCT818ATDMB be safely replaced with a 74FCT818 in a high-reliability automotive diagnostic system, and what risks should I consider?
While the 74FCT818 from other manufacturers (e.g., NXP or ON Semiconductor) shares similar functionality, direct replacement of the CY29FCT818ATDMB requires careful evaluation. Key risks include subtle timing differences in propagation delay and output enable characteristics, which may affect scan chain integrity in diagnostic systems. Additionally, the CY29FCT818ATDMB is qualified for -55°C to 125°C operation, whereas many commercial-grade 74FCT818 variants are only rated to 85°C. For automotive applications, ensure the replacement part has equivalent AEC-Q100 qualification and CDIP packaging robustness. Always validate timing margins and tri-state behavior under worst-case voltage and temperature conditions before committing to a drop-in replacement.
What design constraints should I consider when using the CY29FCT818ATDMB in a mixed-voltage 3.3V/5V system with level translation?
The CY29FCT818ATDMB operates exclusively at 4.75V–5.25V and does not support 3.3V input thresholds, making it incompatible with direct interfacing to 3.3V logic without level shifting. If your system uses 3.3V microcontrollers or FPGAs, you must implement a bidirectional level translator (e.g., TXB0108) on the data and control lines. Avoid relying on the tri-state outputs to float when disabled—ensure pull-up or pull-down resistors are used to prevent bus contention. Also, note that the CDIP package is through-hole, so PCB layout must accommodate higher parasitic inductance; keep clock and data traces short to maintain signal integrity in high-speed diagnostic scan chains.
How does the CY29FCT818ATDMB compare to the CY74FCT818T in terms of power consumption and thermal performance in a densely populated industrial control board?
The CY29FCT818ATDMB and CY74FCT818T are both 8-bit pipeline registers from the FCT family, but the '29FCT' series typically features lower quiescent current and improved thermal characteristics due to process optimizations. In high-density industrial designs where board temperature can exceed 85°C, the CY29FCT818ATDMB’s extended operating range (-55°C to 125°C) provides greater margin. However, the CY74FCT818T may offer slightly faster propagation delays in some speed grades. For thermal reliability, the 24-CDIP package of the CY29FCT818ATDMB allows better heat dissipation than SOIC variants, but ensure adequate airflow and avoid placing it near high-power components to prevent localized heating that could degrade long-term performance.
Is the CY29FCT818ATDMB suitable for use in boundary scan or JTAG diagnostic applications, and what integration pitfalls should I avoid?
Yes, the CY29FCT818ATDMB is well-suited for diagnostic scan register applications due to its tri-state outputs and pipeline architecture, which support clean data shifting in test modes. However, integration into a JTAG or boundary scan chain requires careful attention to clock skew and enable signal timing. The tri-state control (OE) must be synchronized with the system test controller to avoid bus conflicts during mode transitions. Also, because it uses a through-hole CDIP package, ensure your PCB stack-up accounts for lead inductance, which can distort high-frequency clock signals. Always include a test point on the serial output to allow in-circuit validation of the scan chain integrity during manufacturing diagnostics.
What reliability concerns should I evaluate when deploying the CY29FCT818ATDMB in a military-grade system with extended thermal cycling?
Although the CY29FCT818ATDMB is rated for -55°C to 125°C and is RoHS3 compliant, military applications often involve rapid thermal cycling that can stress the CDIP package leads and internal bond wires. Verify that your solder joints and PCB material (e.g., high-Tg FR4 or polyimide) can withstand repeated expansion cycles without cracking. The through-hole mounting of the CY29FCT818ATDMB offers better mechanical stability than surface-mount parts under vibration, but ensure proper strain relief and conformal coating to prevent moisture ingress. Additionally, confirm with Texas Instruments whether the specific lot is traceable and meets MIL-STD-883 screening requirements, as standard commercial parts may not undergo the same burn-in or hermeticity testing required for mission-critical systems.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
CY29FCT818ATDMB CAD Models
Texas Instruments CY29FCT818ATDMB PCB symbols & footprints
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