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SN74175N
Texas Instruments
D FLIP-FLOP, TTL/H/L SERIES TTL
3670 Pcs New Original In Stock
Flip Flop 1 Element D-Type 4 Bit Positive Edge 16-DIP (0.300", 7.62mm)
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Minimum 1
5.0 / 5.0
- (79 Ratings)
SN74175N
Product Overview
9200513
DiGi Electronics Part Number
SN74175N-DGManufacturer
Texas Instruments
SN74175N
Description
D FLIP-FLOP, TTL/H/L SERIES TTLInventory
3670 Pcs New Original In Stock
Flip Flop 1 Element D-Type 4 Bit Positive Edge 16-DIP (0.300", 7.62mm)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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SN74175N Technical Specifications
Category
Logic, Flip Flops
Packaging
-
Series
-
Product Status
Active
Function
Master Reset
Type
D-Type
Output Type
Complementary
Number of Elements
1
Number of Bits per Element
4
Clock Frequency
35 MHz
Max Propagation Delay @ V, Max CL
35ns @ 5V, 15pF
Trigger Type
Positive Edge
Current - Output High, Low
800µA, 16mA
Voltage - Supply
4.75V ~ 5.25V
Current - Quiescent (Iq)
45 mA
Operating Temperature
0°C ~ 70°C (TA)
Grade
-
Qualification
-
Mounting Type
Through Hole
Supplier Device Package
16-PDIP
Package / Case
16-DIP (0.300", 7.62mm)
Base Product Number
SN74175
Datasheet & Documents
HTML Datasheet
SN74175N-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Affected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
TEXTISSN74175N
2156-SN74175N
Standard Package
430
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
배송이 일정하고 포장도 깔끔해서 너무 좋아요.
Dec 02, 2025
他們的售後支持非常到位，每次遇到問題都能獲得幫助，真的太棒了！
Dec 02, 2025
レスポンスが迅速で、こちらのニーズに的確に応えてくれます。
Dec 02, 2025
Their commitment to high-quality packaging standardizes the unboxing ritual.
Dec 02, 2025
DiGi Electronics provides budget-friendly options that don't sacrifice performance or reliability.
Dec 02, 2025
DiGi Electronics' logistics team ensured my order was delivered on time, even during peak seasons.
Dec 02, 2025
I can always count on DiGi Electronics to deliver quickly and support me post-sale efficiently.
Dec 02, 2025
Transparency and efficiency are evident in every interaction with DiGi Electronics.
Dec 02, 2025
I received timely updates and quick solutions from their support team for my issues.
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Frequently Asked Questions (FAQ)
Can the SN74175N be safely used in a 3.3V system, and what are the risks if I try to interface it with lower-voltage logic?
The SN74175N is a 5V TTL device with a supply voltage range of 4.75V to 5.25V and is not rated for 3.3V operation. Attempting to run it at 3.3V may result in unreliable state transitions, failure to meet setup/hold times, and unpredictable output levels. Additionally, its 5V TTL outputs may exceed the absolute maximum input voltage of 3.3V CMOS logic, risking damage to downstream components. For 3.3V systems, consider replacing the SN74175N with a 3.3V-compatible equivalent like the 74LVC175 (e.g., NXP 74LVC175D) or use level-shifting circuitry if integration with 5V legacy designs is unavoidable.
What are the key reliability concerns when using the SN74175N in industrial environments near its upper temperature limit of 70°C?
While the SN74175N is rated for operation up to 70°C ambient, prolonged use near this limit—especially in poorly ventilated enclosures or high-density PCB layouts—can accelerate thermal aging and increase quiescent current (Iq), which is already 45 mA at room temperature. This may lead to thermal runaway in tightly packed designs. Ensure adequate airflow, avoid stacking heat-generating components nearby, and derate the part if operating continuously above 60°C. For industrial applications exceeding 70°C, consider automotive-grade or extended-temperature alternatives like the SN74AHC175 (which supports -40°C to 125°C), despite differing logic thresholds.
How does the SN74175N compare to the SN74LS175N when replacing an older design, and what trade-offs should I expect?
The SN74175N (standard TTL) and SN74LS175N (Low-Power Schottky) are both 4-bit D flip-flops with similar pinouts and functions, but the SN74175N has higher power consumption (45 mA Iq vs. ~8 mA for LS) and slightly slower propagation delay under load. However, the SN74175N offers stronger output drive (16mA sink current) compared to LS-series parts, making it better suited for driving heavier capacitive loads or TTL-compatible interfaces. When replacing an SN74LS175N with the SN74175N, verify that the increased power draw and heat generation are acceptable in your system, and ensure timing margins still meet requirements—especially in high-speed (>20 MHz) synchronous designs.
Is it safe to parallel the outputs of multiple SN74175N flip-flops to increase drive strength, and what pitfalls should I avoid?
Paralleling outputs of the SN74175N is strongly discouraged due to potential current contention and uneven load sharing. Even minor propagation delay mismatches between devices can cause one output to source/sink significant current into another during transitions, leading to excessive power dissipation, signal ringing, or device failure. Instead of paralleling, use a dedicated buffer like the SN74LS244 or SN74LVC244A to boost drive capability while maintaining signal integrity. If you must increase fan-out, ensure all inputs are properly terminated and consider using series resistors (22–100Ω) on outputs to limit shoot-through current—but this is a last-resort workaround, not a robust design practice.
Can the SN74175N be used in a daisy-chained shift register configuration for serial data transfer, and what timing risks exist at 35 MHz?
Yes, the SN74175N can be configured as a 4-bit shift register by connecting Q outputs to D inputs of subsequent stages, but operating near its 35 MHz clock limit introduces critical timing risks. With a max propagation delay of 35 ns at 5V and 15pF load, cascading multiple SN74175N devices creates cumulative delay that may violate setup time requirements at high frequencies—especially with longer PCB traces adding capacitance. At 35 MHz (28.6 ns period), even two stages in series leave minimal margin. To mitigate this, minimize trace lengths, use controlled impedance routing, and consider reducing clock frequency or switching to faster logic families like 74FCT or 74AUC for high-speed shift applications. Always validate timing with worst-case propagation analysis across temperature and voltage variations.
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.
SN74175N CAD Models
Texas Instruments SN74175N PCB symbols & footprints
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