SN74HCS74QBQARQ1 Texas Instruments Integrated Circuit (Other) In Stock
SN74HCS74QBQARQ1 is an automotive-grade dual D-type positive-edge-triggered flip-flop with Schmitt-trigger inputs, clear and preset functions, operating from 1.65 V to 5.5 V at up to 65 MHz in a 14-pin WQFN package, qualified for AEC-Q100 automotive applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- SN74HCS74QBQARQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2330(MOQ 1000)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Automotive AEC-Q100 Grade 1 qualified for -40°C to +125°C operation
- Dual D-type positive-edge-triggered flip-flops with asynchronous clear and preset
- Schmitt-trigger inputs for improved noise immunity in harsh automotive environments
- Operates from 1.65 V to 5.5 V wide supply voltage range
- Maximum operating frequency up to 65 MHz
- 14-pin WQFN package for compact automotive PCB designs
- Supports up to 8 mA output drive current
Applications
SN74HCS74QBQARQ1 is designed for automotive body electronics, instrument cluster controls, and ADAS systems requiring reliable edge-triggered flip-flop logic under wide temperature and voltage variation. It suits infotainment data buses, automotive sensor interface circuits, and CAN/LIN bus digital logic applications where AEC-Q100 qualification is mandatory. Its Schmitt-trigger inputs make it robust in electrically noisy vehicle environments.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-12-05 |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-PQCC-N14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 65000000Hz |
| Max I(ol) | 0.0078A |
| Number of Bits | 1 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC14,.1X.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.002mA |
| Prop. Delay@Nom-Sup | 19ns |
| Propagation Delay (tpd) | 42ns |
| Schmitt Trigger | YES |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 45MHz |
| ## SN74HCS74QBQARQ1 Alternates Showing results | Image |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HCS74QBQARQ1:
Flip-Flop, HC/UH Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PQCC14
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Frequently Asked Questions
What automotive qualification level does SN74HCS74QBQARQ1 hold and over what temperature range does it operate?
SN74HCS74QBQARQ1 is AEC-Q100 Grade 1 qualified, guaranteeing reliable operation across the full automotive temperature range of -40°C to +125°C, making it suitable for under-hood and cabin automotive applications where thermal stress is significant.
How does the Schmitt-trigger input on SN74HCS74QBQARQ1 improve reliability in automotive designs?
The Schmitt-trigger inputs provide hysteresis of approximately 0.5 V to 1 V depending on supply voltage, effectively rejecting slow-transition or noisy signals commonly encountered on automotive power and data lines, preventing false triggering and improving robustness at 1.65 V to 5.5 V supply levels.
What maximum clock frequency can SN74HCS74QBQARQ1 achieve and how does it compare to standard HCT logic?
SN74HCS74QBQARQ1 supports a maximum operating frequency of 65 MHz with a 50 pF load capacitance, which is comparable to or slightly better than standard HCT-family flip-flops operating at 5 V, while additionally offering the lower voltage range down to 1.65 V not available in HCT parts.
For a compact automotive PCB, how does the 14-pin WQFN package size compare to a traditional SOIC alternative?
The 14-pin WQFN (Quad Flat No-Lead) package measures approximately 2.5 mm × 3.5 mm, which is roughly 70% smaller in board area than the equivalent 14-pin SOIC package at around 8.65 mm × 3.9 mm, enabling significant space savings in high-density automotive ECU designs.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.2560 | $256.00 |
| 3000+ | $0.2390 | $717.00 |
| 6000+ | $0.2330 | $1398.00 |
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