My Inquiry
My Account
Nexperia USA Inc. 74ALVC74D,118
- Part No.:
- 74ALVC74D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74ALVC74D,118.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,794
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ALVC74D,118 from Nexperia is a dual positive-edge-triggered D-type flip-flop with independent asynchronous set (SD) and reset (RD) inputs, complementary Q/Q̅ outputs per channel, 1.65 V to 3.6 V supply range, -40 °C to +125 °C operation, and IOFF partial power-down protection. It functions as a synchronous storage element in digital control logic, clock domain synchronization, and state machine sequencing in industrial microcontroller peripherals.
For engineers reviewing the 74ALVC74D,118 datasheet, 74ALVC74D,118 pinout, 74ALVC74D,118 application, or 74ALVC74D,118 equivalent, key selection criteria include setup/hold timing at 3.3 V (tsu = 0.8 ns, th = 0.8 ns), propagation delay (tpd = 3.8 ns max at VCC = 3.6 V), Schmitt-trigger input tolerance for slow edges, IOFF-enabled backflow prevention during power sequencing, and SO14 package compatibility with legacy PCB footprints.
Technical Context
This device implements two independent edge-triggered D flip-flops sharing no internal coupling-each has dedicated D, CP, SD, RD, Q, and Q̅ terminals. Clocking is strictly positive-edge (LOW-to-HIGH transition), with asynchronous SD and RD asserting active-LOW to force Q high or low regardless of clock state.
Schmitt-trigger inputs enable robust operation with slow-rising/falling signals up to 20 ns/V slew rate (at 1.65–2.7 V), while the IOFF circuit disables outputs when VCC = 0 V, blocking destructive back-current during partial power-down sequences in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Propagation Delay (tpd) | 3.8 ns max at VCC = 3.6 V - Supports >300 MHz maximum clock frequency in high-speed control loops. |
| Set-up / Hold Time | tsu = 0.8 ns, th = 0.8 ns at VCC = 3.6 V - Tight timing margins suitable for FPGA-to-ASIC data capture paths. |
| IOFF Leakage Current | ±10 μA max at VCC = GND - Prevents bus contention and latch-up risk during hot-swap or power-gating events. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive ECUs and industrial motor drives without derating. |
| Input Voltage Tolerance | Inputs tolerant to 3.6 V regardless of VCC - Allows safe interfacing with higher-voltage controllers in mixed-supply systems. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Reduces need for external transient suppression in board-level ESD zones. |
Pinout & Package
74ALVC74D,118 is supplied in SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1RD) | Asynchronous Reset (Channel 1) | Active-LOW direct override of Q1 output; overrides clock and data, enabling hard system reset. |
| 2 (VCC) | Positive Supply | Primary power rail; powers both flip-flop channels and IOFF circuitry; must be decoupled locally. |
| 3 (1D) | Data Input (Channel 1) | Stores logic level on next rising clock edge if setup/hold times met; Schmitt-triggered for noise immunity. |
| 4 (2RD) | Asynchronous Reset (Channel 2) | Independent active-LOW reset for Q2; enables dual-channel independent initialization. |
| 5 (1CP) | Clock Input (Channel 1) | Edge-sensitive trigger: stores 1D value only on LOW-to-HIGH transition; Schmitt-triggered. |
| 6 (2D) | Data Input (Channel 2) | Independent data path for second flip-flop; identical timing and drive characteristics to 1D. |
| 7 (1SD) | Asynchronous Set (Channel 1) | Active-LOW direct assertion of Q1 = HIGH; priority over clock and data; used for known-state initialization. |
| 8 (2CP) | Clock Input (Channel 2) | Independent clock domain for Channel 2; allows dual-clock-domain sampling within one IC. |
| 9 (1Q) | True Output (Channel 1) | Complementary to 1Q̅; drives downstream logic or feedback paths; rated for ±24 mA at 3.0 V. |
| 10 (2SD) | Asynchronous Set (Channel 2) | Active-LOW set for Q2; enables parallel initialization of both channels with separate control. |
| 11 (1Q̅) | Inverted Output (Channel 1) | Logic complement of 1Q; eliminates need for external inverters in toggle or differential signaling. |
| 12 (2Q) | True Output (Channel 2) | Independent output for Channel 2; supports dual-bit register or dual-phase clock generation. |
| 13 (2RD) | Asynchronous Reset (Channel 2) | Duplicate of Pin 4; confirmed in functional diagram and pin description table. |
| 14 (GND) | Ground Reference | 0 V return path for all internal circuitry and I/O; requires low-inductance connection to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–3.6 V) | Eliminates need for voltage translators between 1.8 V FPGAs and 3.3 V peripheral buses. |
| Schmitt-trigger inputs | Accepts slow-rising signals down to 10 ns/V slew rate, reducing jitter in noisy industrial environments. |
| IOFF partial power-down | Disables outputs at VCC = 0 V, preventing backfeed current into powered subsystems during brown-out. |
| High-speed performance | 300 MHz max clock frequency at 3.6 V enables use in real-time encoder interpolation and PWM sync circuits. |
| Extended temperature grade | -40 °C to +125 °C rating supports deployment in engine control units and solar inverter gate drivers. |
Applications
| Motor Control Feedback Latching | Industrial PLC Input Debouncing |
|---|---|
|
Use Scenario: Capturing quadrature encoder pulses in servo drives where position updates must survive brief power interruptions. IC Role / Device Role / Timing Role: Dual-channel D flip-flop latches A/B phase states on rising clock edges synchronized to MCU timer; SD/RD pins initialize known state after reset. Use Value: IOFF prevents encoder bus contention during MCU power cycling; Schmitt inputs reject EMI-induced glitches on long cable runs. |
Use Scenario: Debouncing mechanical relay contacts in programmable logic controller (PLC) digital input modules. IC Role / Device Role / Timing Role: Each flip-flop samples contact state at 1 kHz using internal clock; asynchronous RD clears metastability after bounce settles. Use Value: 0.8 ns setup time ensures reliable capture at 3.3 V logic speeds; wide VCC range allows direct use with 2.5 V isolated input stages. |
| FPGA Configuration Register | Legacy Bus Synchronization |
|
Use Scenario: Storing configuration bits for analog front-end calibration in Xilinx Artix-7-based test equipment. IC Role / Device Role / Timing Role: Two-bit register holding gain/offset settings; updated via SPI interface with SD/RD enabling atomic write cycles. Use Value: Complementary Q/Q̅ outputs eliminate external inverters for differential DAC control; -40 °C to +125 °C rating matches sensor operating range. |
Use Scenario: Synchronizing 5 V TTL-level address strobes to a 3.3 V ARM Cortex-M7 bus in retro-compatibility adapters. IC Role / Device Role / Timing Role: Level-shifting and edge-aligning legacy control signals using 3.3 V supply while tolerating 5 V input transients. Use Value: 3.6 V input tolerance avoids external clamping diodes; propagation delay <4 ns preserves timing budget in high-speed glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC74APWRE4 | Same SO14 package, but rated only to +85 °C; lacks IOFF; lower ESD (HBM 2000 V vs. 2000+ V). | Not suitable for under-hood automotive or high-temp industrial enclosures requiring +125 °C operation. | Select when cost sensitivity outweighs extended temperature and power-down requirements. |
| 74LVC74AD,118 | Identical pinout and function, but LVC variant lacks Schmitt-trigger inputs and IOFF circuitry. | Requires clean, fast-rising clocks; cannot tolerate slow edges or partial power-down scenarios. | Choose only for benign lab environments with controlled signal integrity and full-system power sequencing. |
Compared with SN74LVC74APWRE4 and 74LVC74AD,118, the 74ALVC74D,118 uniquely combines +125 °C operation, IOFF-enabled safe power-down, and Schmitt-triggered inputs-making it the sole option for ruggedized, mixed-voltage, hot-swap-capable digital control designs.
Availability
74ALVC74D,118 is available at Aetrix Electronics and suitable for motor control feedback latching, industrial PLC input debouncing, FPGA configuration register storage, and legacy bus synchronization requiring stable component supply across automotive, industrial, and test equipment programs.
Supply support for 74ALVC74D,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.
The 74ALVC74D,118 belongs to Nexperia's Advanced Low-Voltage CMOS (ALVC) logic family-designed specifically for robust, low-power, mixed-voltage digital interfacing in harsh thermal and electrical environments.
FAQ
What is the minimum recommended VCC for guaranteed operation?
The 74ALVC74D,118 is fully specified from 1.65 V to 3.6 V per JEDEC JESD8-7, JESD8-5, and JESD8C/JESD36 standards. At 1.65 V, VIH = 0.65 × VCC (≥1.07 V) and VOL ≤ 0.3 V at 6 mA load are guaranteed across -40 °C to +125 °C. Operation below 1.65 V is not characterized and may result in timing violations or output instability.
Can 74ALVC74D,118 safely interface with 5 V TTL outputs?
Yes-the inputs are overvoltage tolerant to 3.6 V, but not to 5 V. Direct connection to 5 V TTL outputs risks exceeding the absolute maximum input voltage (VI = -0.5 V to +4.6 V), potentially degrading reliability. A series resistor (e.g., 1 kΩ) plus a 3.6 V clamp diode to VCC is required for safe 5 V interface; alternatively, use a dedicated level translator like NXPI PCA9306.
How does the IOFF feature behave during power sequencing?
When VCC drops to 0 V, the IOFF circuit actively disables all outputs (Q and Q̅), presenting high-impedance states regardless of input levels. This prevents back-current flow from powered downstream buses into the unpowered IC, eliminating risk of latch-up or damage during staggered power-up/down sequences in multi-rail systems.
Is the SO14 package (SOT108-1) RoHS and REACH compliant?
Yes-74ALVC74D,118 in SO14 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Nexperia confirms compliance via material declarations (IMDS/SDS), and the device carries the "RoHS-compliant" marking per Annex XIV of the directive. Lead finish is matte tin, and halogen content is below 900 ppm Cl/Br threshold.
74ALVC74D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 425 MHz
- Max Propagation Delay @ V, Max CL:
- 3.8ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74ALVC74D,118 FAQ
1.How can I place an order for 74ALVC74D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC74D,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74ALVC74D,118 reliable?
The price and inventory of 74ALVC74D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC74D,118 is usually 5 days.
3.What payment methods are accepted for 74ALVC74D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC74D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC74D,118?
74ALVC74D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC74D,118 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74ALVC74D,118?
For technical support, including 74ALVC74D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC74D,118 requirements.
6.How does Aetrix verify that 74ALVC74D,118 is sourced from the original manufacturer or authorized distributors?
All 74ALVC74D,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74ALVC74D,118 meets industry standards.
7.What is the process for return or replacement of 74ALVC74D,118?
All 74ALVC74D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC74D,118, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74ALVC74D,118 part is unused and in its original packaging.
Return procedure for 74ALVC74D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVC74D,118 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
