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Nexperia USA Inc. 74AHC74PW,112
- Part No.:
- 74AHC74PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHC74PW,112.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,073
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Product details
Overview
74AHC74PW,112 from Nexperia is a dual positive-edge-triggered D-type flip-flop with asynchronous set (SD) and reset (RD) inputs, complementary Q/Q̅ outputs per section, Schmitt-trigger clock inputs, and CMOS-level input compatibility. It operates from 2.0 V to 5.5 V, delivers propagation delays as low as 3.7 ns (VCC = 4.5–5.5 V, CL = 15 pF), and supports 130 MHz maximum clock frequency in high-speed logic interfacing applications.
For engineers reviewing the 74AHC74PW,112 datasheet, 74AHC74PW,112 pinout, 74AHC74PW,112 application, or 74AHC74PW,112 equivalent, this device serves as a fundamental building block for synchronous data latching, clock domain synchronization, state machine sequencing, and edge-sensitive control logic in industrial microcontroller peripherals and digital signal routing systems.
Technical Context
The 74AHC74PW,112 implements two independent D-type flip-flops sharing no internal coupling-each with dedicated D, CP, SD, RD, Q, and Q̅ terminals. Its Schmitt-trigger clock input ensures robust operation with slow-rising or noisy clock edges, eliminating external conditioning circuitry in mixed-signal environments.
Asynchronous SD and RD inputs override clock timing and force Q to HIGH or LOW respectively when asserted LOW, enabling immediate state initialization or fault recovery. Data transfer occurs only on the LOW-to-HIGH clock transition, requiring stable D input ≥5.0 ns before (tsu) and ≥0.5 ns after (th) the edge under 4.5–5.5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74AHC series - CMOS-compatible input thresholds, rail-to-rail output swing, and low static power consumption (ICC ≤ 40 μA at VCC = 5.5 V). |
| Supply Voltage Range | 2.0 V to 5.5 V - Enables interoperability with 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay (tpd) | 3.7 ns typical (VCC = 4.5–5.5 V, CL = 15 pF) - Supports sub-10 ns timing-critical paths in FPGA I/O bridging and microcontroller glue logic. |
| Maximum Clock Frequency (fmax) | 130 MHz typical (VCC = 4.5–5.5 V, CL = 15 pF) - Sufficient for high-speed serial interface handshaking and sample-and-hold control. |
| Input Thresholds | VIH = 3.85 V min, VIL = 1.65 V max at VCC = 5.5 V - Ensures noise margins >1.3 V for reliable TTL/CMOS mixed-voltage system integration. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets industrial-grade robustness requirements for board-level handling and field deployment. |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood automotive modules, motor drive controllers, and industrial PLC I/O stages. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14 leads; body width 4.4 mm; 0.65 mm lead pitch; exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1RD | Asynchronous reset (Section 1) | Active-LOW direct override of Q₁ to LOW, independent of clock; enables immediate fault clearing. |
| 2 | Data input (Section 1) | Primary D₁ input; sampled on rising edge of 1CP; must meet tsu/th timing relative to clock edge. |
| 3 | Clock input (Section 1) | Positive-edge-triggered (LOW→HIGH); Schmitt-trigger input accepts slow or noisy waveforms up to 20 ns/V slew rate. |
| 4 | Asynchronous set (Section 1) | Active-LOW direct override of Q₁ to HIGH; used for known initial state assertion at power-up. |
| 5 | True output (Section 1) | Q₁ - Complementary to 1Q; drives downstream logic with VOH ≥ 3.70 V / VOL ≤ 0.55 V at 8 mA load. |
| 6 | Complement output (Section 1) | 1Q - Inverted version of Q₁; eliminates need for external inverters in toggle or differential signaling paths. |
| 7 | Ground | GND reference for all I/O and supply pins; requires low-inductance PCB connection to minimize switching noise. |
| 8 | Complement output (Section 2) | 2Q - Inverted version of Q₂; provides matched delay and drive strength to Q₂ for balanced timing paths. |
| 9 | True output (Section 2) | Q₂ - Primary output of second flip-flop; electrically isolated from Section 1 except shared VCC/GND rails. |
| 10 | Asynchronous set (Section 2) | Active-LOW direct override of Q₂ to HIGH; enables independent initialization of second latch stage. |
| 11 | Clock input (Section 2) | Positive-edge-triggered (LOW→HIGH); may be driven by same or separate clock source from 1CP. |
| 12 | Data input (Section 2) | D₂ - Independent data path; allows dual-channel synchronous sampling or pipeline staging. |
| 13 | Asynchronous reset (Section 2) | Active-LOW direct override of Q₂ to LOW; supports independent fault recovery per channel. |
| 14 | Supply voltage | VCC - Powers both sections; decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger clock inputs | Enables reliable triggering from slow-rise clocks (e.g., RC oscillators or microcontroller GPIO toggles) without external hysteresis components. |
| Asynchronous set/reset per section | Allows independent initialization or forced state control of each flip-flop without waiting for clock edges-critical for safety-critical resets. |
| CMOS-level input compatibility | Accepts VIH up to VCC and VIL down to GND, supporting direct connection to 3.3 V microcontrollers and legacy 5 V systems. |
| Wide temperature range | Specified from −40 °C to +125 °C across full voltage range, qualifying for engine control units and industrial motor drives. |
| Low dynamic power dissipation | CPD = 12 pF enables predictable dynamic power calculation (PD = CPD × VCC² × fi × N), simplifying thermal design in dense logic arrays. |
Applications
| Industrial PLC Input Latching | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Capturing momentary push-button or sensor status in noisy factory-floor environments where EMI may corrupt edge detection. IC Role / Device Role / Timing Role: Dual D-flip-flop acts as synchronized input synchronizer-debouncing signals via double-registering and suppressing metastability. Use Value: Eliminates need for discrete RC filters and software debouncing routines, reducing BOM count and firmware complexity while guaranteeing <10 ns setup/hold compliance. |
Use Scenario: Extending limited GPIO count of an ARM Cortex-M0+ MCU to drive multiple LED indicators or relay drivers with precise timing. IC Role / Device Role / Timing Role: Provides two independent, clock-gated output registers that update only on MCU-generated strobes-enabling glitch-free parallel output updates. Use Value: Delivers deterministic output timing (tpd ≤ 3.7 ns) and rail-to-rail drive capability (±8 mA), avoiding timing skew between channels in real-time control loops. |
| Serial-to-Parallel Data Conversion | State Machine Sequencing |
Use Scenario: Converting incoming UART or SPI data stream into parallel byte-wide format for display driver or memory-mapped peripheral interfacing. IC Role / Device Role / Timing Role: Each flip-flop captures one bit of incoming serial data on successive clock edges; Q outputs form parallel bus aligned to common clock. Use Value: Achieves 130 MHz maximum clock rate-supporting >10 Mbps serial-to-parallel conversion without FIFO buffering or clock domain crossing logic. |
Use Scenario: Implementing a 2-bit counter or finite-state controller for motor commutation sequencing in BLDC driver ICs. IC Role / Device Role / Timing Role: Two flip-flops form a synchronous 2-bit binary counter; Q₁/Q₂ outputs directly drive gate driver enable lines with zero propagation skew between bits. Use Value: Guarantees simultaneous edge alignment (Δtpd ≤ 0.5 ns between sections) and eliminates race conditions in critical power-stage switching transitions. |
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 |
|---|---|---|---|
| 74AHCT74PW,112 | TTL-level inputs (VIH = 2.0 V min), identical pinout and timing; slightly higher tpd (4.8 ns typical at 5 V, 50 pF). | Better suited for legacy 5 V TTL systems where input drive strength exceeds CMOS sourcing capability. | Select when interfacing with older 74LS or 74F logic families requiring lower VIH thresholds. |
| SN74LVC74APWRE4 | Lower VCC range (1.65–5.5 V), higher drive (24 mA), but no Schmitt-trigger clock input-requires clean clock edges. | Preferred in battery-powered portable devices needing ultra-low voltage operation and higher output current. | Choose when operating below 2.0 V or driving heavier capacitive loads (>50 pF), but verify clock edge integrity. |
Compared with 74AHCT74PW,112, the 74AHC74PW,112 offers superior noise immunity on clock inputs and wider input voltage tolerance, while SN74LVC74APWRE4 trades Schmitt-trigger robustness for broader supply flexibility and stronger output drive-making each optimal for distinct system-level constraints.
Availability
74AHC74PW,112 is available at Aetrix Electronics and suitable for industrial PLC input latching, microcontroller GPIO expansion, serial-to-parallel data conversion, and state machine sequencing requiring stable component supply across extended temperature ranges.
Supply support for 74AHC74PW,112 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, reliable logic, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in high-volume applications.
The 74AHC74PW,112 belongs to Nexperia's advanced AHC logic family, engineered for high-speed, low-power, and wide-voltage-operation digital interfacing in automotive, industrial, and computing systems.
FAQ
What is the minimum recommended supply decoupling for 74AHC74PW,112?
A 100 nF X7R ceramic capacitor placed within 5 mm of the VCC (pin 14) and GND (pin 7) pins is mandatory for stable operation above 10 MHz. For systems operating near 130 MHz maximum frequency, add a 10 nF capacitor in parallel to suppress high-frequency switching noise.
Can 74AHC74PW,112 operate reliably with a 1.8 V supply?
No. The 74AHC74PW,112 is not characterized or guaranteed below 2.0 V supply. At 1.8 V, VIH threshold falls outside specification (minimum VIH = 1.5 V at VCC = 2.0 V), risking unreliable HIGH-level recognition and increased static current leakage.
Is the TSSOP14 package (SOT402-1) lead-free and RoHS compliant?
Yes. The 74AHC74PW,112 uses a lead-free, halogen-free, RoHS-compliant TSSOP14 package per Nexperia's standard manufacturing process, with terminal finish of pure matte tin (Sn) over nickel/palladium underplate.
How does the Schmitt-trigger clock input affect timing analysis?
The Schmitt-trigger action introduces hysteresis (typically 0.5 V at VCC = 5 V), making the effective clock threshold voltage variable. This eliminates sensitivity to slow rise/fall times but requires using the specified VM = 0.5 × VCC measurement point-not fixed 1.5 V or 2.5 V-for accurate tpd and setup/hold validation.
74AHC74PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 115 MHz
- Max Propagation Delay @ V, Max CL:
- 9.3ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 2 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74AHC74PW,112 FAQ
1.How can I place an order for 74AHC74PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC74PW,112 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 74AHC74PW,112 reliable?
The price and inventory of 74AHC74PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC74PW,112 is usually 5 days.
3.What payment methods are accepted for 74AHC74PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC74PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC74PW,112?
74AHC74PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC74PW,112 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 74AHC74PW,112?
For technical support, including 74AHC74PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC74PW,112 requirements.
6.How does Aetrix verify that 74AHC74PW,112 is sourced from the original manufacturer or authorized distributors?
All 74AHC74PW,112 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 74AHC74PW,112 meets industry standards.
7.What is the process for return or replacement of 74AHC74PW,112?
All 74AHC74PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC74PW,112, 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 74AHC74PW,112 part is unused and in its original packaging.
Return procedure for 74AHC74PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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