Nexperia USA Inc. 74AHC377PW,112
- Part No.:
- 74AHC377PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHC377PW,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:4,209
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74AHC377PW,112 from Nexperia is an octal positive-edge-triggered D-type flip-flop with individual D inputs and Q outputs, a common clock (CP), and an active-low data enable (E). It operates from 2.0 V to 5.5 V, delivers propagation delays as low as 3.9 ns (VCC = 5 V, CL = 15 pF), supports −40 °C to +125 °C ambient range, and is used in addressable register applications requiring synchronized parallel data latching.
For engineers reviewing the 74AHC377PW,112 datasheet, 74AHC377PW,112 pinout, 74AHC377PW,112 application, or 74AHC377PW,112 equivalent, key selection criteria include setup/hold timing (tsu = 4.5 ns, th = 2.0 ns at VCC = 5 V), CMOS-level input compatibility, TSSOP20 package footprint, and data-enable–controlled synchronous loading across eight channels.
Technical Context
This device implements eight independent edge-triggered D flip-flops sharing one clock and one global data enable. The E input must be stable one setup time before the LOW-to-HIGH CP transition to ensure predictable state transfer from Dn to Qn.
It features Schmitt-trigger inputs for noise immunity, accepts input voltages up to 7.0 V regardless of VCC, and provides balanced propagation delays between all eight channels. The logic function is strictly synchronous-no transparent or latch behavior-and output states change only on the rising edge of CP when E is LOW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VCC) | 2.0 V to 5.5 V - supports mixed-voltage system interfacing and low-power operation down to 2 V. |
| Propagation delay (tpd) | 3.9 ns typical (VCC = 5 V, CL = 15 pF) - enables high-speed register staging in timing-critical control paths. |
| Maximum frequency (fmax) | 125 MHz typical (VCC = 5 V, CL = 15 pF) - suitable for burst-mode data capture in microcontroller peripheral interfaces. |
| Set-up time (tsu) | 4.5 ns (VCC = 4.5–5.5 V) - defines minimum D/E hold-before-clock window for reliable sampling. |
| Hold time (th) | 2.0 ns (VCC = 4.5–5.5 V) - constrains minimum D/E stability after clock edge to prevent metastability. |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial motor-control environments. |
| Input voltage tolerance | −0.5 V to +7.0 V - allows safe interfacing with higher-voltage logic or open-drain pull-ups without level shifters. |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-lead, 4.4 mm body width, 0.65 mm pitch - optimized for high-density PCB layouts and automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (E) | Data enable input | Active-LOW global control: only when E = LOW does CP edge load Dn → Qn; otherwise outputs hold state. |
| 2 (Q0) to 9 (Q3), 12 (Q4), 15 (Q5), 16 (Q6), 19 (Q7) | Flip-flop outputs | Eight buffered, non-inverted Q outputs - each tracks its corresponding D input after valid clock+enable event. |
| 3 (D0) to 4 (D1), 7 (D2), 8 (D3), 13 (D4), 14 (D5), 17 (D6), 18 (D7) | Data inputs | Eight independent D inputs - sampled synchronously on CP rising edge if E is LOW. |
| 10 (GND) | Ground reference | Primary 0 V return path for all internal logic and I/O - must be low-impedance for signal integrity. |
| 11 (CP) | Clock input | Positive-edge-triggered master clock - rising edge initiates sampling of all D inputs when E is asserted. |
| 20 (VCC) | Supply voltage | Single 2.0–5.5 V power rail - powers all eight flip-flops and I/O buffers; decoupling near pin required. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables robust noise rejection on CP and E lines in electrically noisy industrial control environments. |
| Input overvoltage tolerance | Accepts VI up to +7.0 V independent of VCC - eliminates need for external clamping diodes when interfacing legacy 5 V logic. |
| CMOS-level input thresholds | VIH = 3.85 V (VCC = 5.5 V), VIL = 1.65 V - ensures clean switching margin with standard 3.3 V or 5 V microcontroller GPIOs. |
| Low dynamic power | CPD = 20 pF - minimizes switching current in high-frequency register banks, reducing thermal load in compact enclosures. |
| Extended temperature grade | Rated from −40 °C to +125 °C - validated for continuous operation in automotive engine control units and industrial PLC backplanes. |
Applications
| Microcontroller Address Latching | Industrial I/O Expansion |
|---|---|
Use Scenario: Capturing 8-bit address bus output from an MCU during memory-mapped peripheral access. IC Role / Device Role / Timing Role: Synchronous register that freezes address bits on CP edge while E is LOW, isolating bus from timing skew between address and control signals. Use Value: Eliminates address glitches during bus arbitration by ensuring deterministic sampling aligned to system clock domain. | Use Scenario: Buffering parallel digital inputs from sensors or switches in a programmable logic controller rack. IC Role / Device Role / Timing Role: Input register that captures 8-channel status data on a shared clock edge, synchronized to scan cycle start via E signal. Use Value: Enables precise time-aligned acquisition across all inputs, critical for deterministic real-time control loop execution. |
| Test Equipment Pattern Generation | Automotive Body Control Module |
Use Scenario: Holding test vector bits for driving DUT pins in automated functional testers. IC Role / Device Role / Timing Role: Output register that loads precomputed stimulus patterns into Q outputs on command, gated by E for test sequence control. Use Value: Provides glitch-free, edge-aligned pattern delivery to DUT, improving test repeatability and fault coverage. | Use Scenario: Storing door lock/unlock command states in a vehicle body control unit before actuation. IC Role / Device Role / Timing Role: Command latch that holds safety-critical outputs until validated by system watchdog and power-good signals (via E). Use Value: Adds fail-safe gating to output updates, preventing spurious actuation during power transients or reset recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC374PW,112 | 3-state outputs (OE control); same pinout and timing | Required when bus-sharing or bidirectional data routing is needed | Select when output drivers must be tri-stated between operations to avoid contention. |
| 74AHCT377PW,112 | TTL-compatible inputs (VIH = 2.0 V); identical function and package | Needed for direct interface with legacy 5 V TTL logic without level translation | Select when driving from 5 V LSTTL sources where AHC's higher VIH would cause marginal recognition. |
Compared with 74AHC377PW,112, the 74AHC374PW,112 adds output enable for bus multiplexing but increases complexity, while 74AHCT377PW,112 trades CMOS input noise immunity for guaranteed TTL-level compatibility-neither is pin- or functionally identical without circuit adaptation.
Availability
74AHC377PW,112 is available at Aetrix Electronics and suitable for microcontroller address latching, industrial I/O expansion, test equipment pattern generation, and automotive body control module designs requiring stable component supply across extended temperature ranges.
Supply support for 74AHC377PW,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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in energy-efficient, high-reliability silicon solutions.
The 74AHC series targets high-speed, low-power CMOS logic applications in industrial automation, automotive systems, and computing peripherals-designed for robust operation across wide voltage and temperature ranges.
FAQ
What is the maximum clock frequency supported by the 74AHC377PW,112?
The 74AHC377PW,112 supports up to 125 MHz typical operation at VCC = 5 V with 15 pF load, and 75 MHz minimum over full temperature range. Maximum frequency drops to 85 MHz at 50 pF load due to increased capacitive delay. These values assume proper signal integrity, termination, and decoupling per Nexperia's layout guidelines.
Does the 74AHC377PW,112 have built-in ESD protection?
Yes-it meets HBM ESD rating >2000 V, MM >200 V, and CDM >1000 V per JESD22 standards. This level of protection enables safe handling during SMT assembly and reliable operation in environments with moderate electrostatic discharge risk, such as factory floor or bench testing.
Can the 74AHC377PW,112 operate at 3.3 V supply?
Yes-its recommended operating range includes VCC = 2.0 V to 5.5 V, with full functionality at 3.3 V. At 3.3 V, propagation delay is 5.6 ns typical (CL = 15 pF), VIH = 2.1 V, and VOL ≤ 0.36 V at 4 mA drive-making it fully compatible with 3.3 V microcontrollers and FPGAs.
Is there a version of this device with a master reset function?
No-the 74AHC377PW,112 has no asynchronous reset. For master reset capability, Nexperia specifies the 74AHC273 (octal D flip-flop with asynchronous clear), which shares the same TSSOP20 package and voltage range but adds an active-low CLR input independent of clock and enable.
74AHC377PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 120 MHz
- Max Propagation Delay @ V, Max CL:
- 10.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74AHC377PW,112 FAQ
1.How can I place an order for 74AHC377PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC377PW,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 74AHC377PW,112 reliable?
The price and inventory of 74AHC377PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC377PW,112 is usually 5 days.
3.What payment methods are accepted for 74AHC377PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC377PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC377PW,112?
74AHC377PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC377PW,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 74AHC377PW,112?
For technical support, including 74AHC377PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC377PW,112 requirements.
6.How does Aetrix verify that 74AHC377PW,112 is sourced from the original manufacturer or authorized distributors?
All 74AHC377PW,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 74AHC377PW,112 meets industry standards.
7.What is the process for return or replacement of 74AHC377PW,112?
All 74AHC377PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC377PW,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 74AHC377PW,112 part is unused and in its original packaging.
Return procedure for 74AHC377PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHC377PW,112 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…

