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Nexperia USA Inc. 74AHCT377D-Q100J
- Part No.:
- 74AHCT377D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74AHCT377D-Q100J.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,789
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Product details
Overview
74AHCT377D-Q100 from Nexperia is an automotive-qualified octal positive-edge-triggered D-type flip-flop with data enable (active LOW), operating from −40 °C to +125 °C, featuring TTL-level input compatibility, 4.0 ns minimum clock pulse width, 4.5 V–5.5 V supply range, and SO20 package. It synchronizes eight parallel data lines in automotive body control modules, instrument clusters, and ADAS domain controllers.
For engineers reviewing the 74AHCT377D-Q100 datasheet, 74AHCT377D-Q100 pinout, 74AHCT377D-Q100 application, or 74AHCT377D-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 4.5 ns typical propagation delay at 5 V/15 pF, 85 MHz max frequency under 50 pF load, and data enable–controlled synchronous latching behavior.
Technical Context
This device implements eight independent edge-triggered D-type storage elements sharing a common clock (CP) and a single active-LOW data enable (E). All outputs update simultaneously on the LOW-to-HIGH transition of CP when E is asserted, with set-up time of 4.5 ns and hold time of 2.0 ns at VCC = 4.5–5.5 V.
Input thresholds are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max), output drive capability is ±8 mA at VCC = 4.5 V, and static power consumption remains below 80 μA across temperature. Schmitt-trigger inputs ensure noise immunity on asynchronous control signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74AHCT - TTL-compatible CMOS, enabling direct interface with legacy 5 V LSTTL systems without level shifters |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood and powertrain-adjacent automotive applications |
| Propagation Delay | 4.0–11.5 ns (CP to Qn, CL = 15–50 pF, VCC = 4.5–5.5 V) - Enables reliable 85+ MHz synchronous data capture in real-time control loops |
| Supply Voltage Range | 4.5 V to 5.5 V - Matches standard automotive 5 V rail with ±10% tolerance margin |
| Input Compatibility | TTL-level (VIH ≥ 2.0 V, VIL ≤ 0.8 V) - Directly accepts outputs from 74LS, 74F, and other bipolar logic families |
| Output Drive | ±8.0 mA (VOH/VOL at VCC = 4.5 V) - Sufficient to drive multiple CMOS/TTL inputs or small LED indicators without buffering |
| AEC-Q100 Grade | Grade 1 - Certified for automotive use per AEC-Q100 Rev G, including HTOL, TC, ESD, and AC/DC stress testing |
Pinout & Package
74AHCT377D-Q100 is housed in a plastic small outline package (SO20, SOT163-1) with 20 leads, 7.5 mm body width, and gull-wing lead form suitable for reflow soldering in automotive PCB assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E (Pin 1) | Data enable input | Active-LOW global latch enable - holds all Q outputs unchanged when HIGH; required stable ≥4.5 ns before CP edge |
| CP (Pin 11) | Clock input | Positive-edge-triggered master clock - initiates simultaneous transfer of D0–D7 to Q0–Q7 only when E is LOW |
| D0–D7 (Pins 3,4,7,8,13,14,17,18) | Data inputs | Independent asynchronous data sources - each sampled one setup time before CP rising edge |
| Q0–Q7 (Pins 2,5,6,9,12,15,16,19) | Flip-flop outputs | Registered, synchronized copies of corresponding D inputs - provide glitch-free, edge-aligned outputs for downstream logic |
| VCC (Pin 20) | Power supply | Primary 4.5–5.5 V supply - powers internal logic and output drivers; requires local 100 nF ceramic decoupling |
| GND (Pin 10) | Ground reference | 0 V return path for all I/O and internal circuitry - must be low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across −40 °C to +125 °C ambient, including HTOL, temperature cycling, and ESD stress tests |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level translators when interfacing with legacy 5 V logic |
| Schmitt-trigger inputs | On E and CP pins - suppresses noise-induced false triggering from slow-rising or noisy control signals in vehicle harness environments |
| Simultaneous 8-bit latching | Single-clock, single-enable architecture ensures deterministic timing alignment across all eight outputs - critical for address/data bus registration |
| ESD robustness | HBM > 2000 V, MM > 200 V - exceeds automotive assembly and handling requirements per JESD22-A114F/A115-A |
Applications
| Body Control Module (BCM) | Instrument Cluster Display Driver |
|---|---|
Use Scenario: Latching door lock status, window position, mirror angle, and lighting commands from microcontroller GPIOs before routing to high-side driver ICs. IC Role / Device Role / Timing Role: Synchronous register that isolates MCU I/O from noisy power-switching circuits while ensuring all eight control bits update atomically on a single clock edge. Use Value: Prevents partial state updates during MCU interrupt latency or bus arbitration delays, eliminating transient misoperation of actuators. | Use Scenario: Capturing 8-bit segment or backlight brightness data from an MCU SPI/I²C interface for parallel driving of LED/LCD display segments. IC Role / Device Role / Timing Role: Parallel data buffer that converts serially loaded values into stable, glitch-free parallel outputs synchronized to display refresh timing. Use Value: Eliminates visual flicker or ghosting by guaranteeing all eight display control lines change simultaneously, not sequentially. |
| ADAS Camera Interface Bridge | Power Distribution Unit (PDU) Register |
Use Scenario: Temporarily storing camera sensor configuration registers (e.g., exposure, gain, frame sync) before loading into image signal processor (ISP) control logic. IC Role / Device Role / Timing Role: Edge-triggered latch providing deterministic setup/hold timing margins between MCU write cycles and ISP read cycles. Use Value: Ensures configuration data integrity despite variable MCU execution timing and avoids metastability in cross-clock-domain transfers. | Use Scenario: Holding relay control bits for HVAC, seat heating, or charging port management in electric vehicle PDUs where fail-safe state retention is mandatory. IC Role / Device Role / Timing Role: Non-volatile-capable register (when paired with backup supply) that maintains last-known safe state during brief MCU resets or brownouts. Use Value: Enables graceful degradation - e.g., keeping cabin fans running at minimum speed during transient MCU faults - improving functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop with data enable applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT377QPWRQ1 | TSSOP20 package (SOT360-1), identical electrical specs and AEC-Q100 Grade 1 qualification | Smaller footprint (4.4 mm width) and lower thermal resistance - preferred for space-constrained modules like radar ECUs | Select when board area or thermal performance outweighs SO20's higher mechanical robustness and rework ease |
| 74AHC377D-Q100 | CMOS-level inputs (VIH = 3.85 V min at VCC = 5.5 V), otherwise identical pinout, timing, and qualification | Requires compatible CMOS drivers; unsuitable for direct connection to 74LS/74F outputs without level translation | Select only when entire system uses CMOS logic families and strict 5 V rail stability is guaranteed |
Compared with SN74AHCT377QPWRQ1, the 74AHCT377D-Q100 offers superior mechanical reliability and thermal mass in SO20 for high-vibration zones, while 74AHC377D-Q100 trades input compatibility for slightly lower static current but introduces interface risk in mixed-logic designs.
Availability
74AHCT377D-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and ADAS domain controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AHCT377D-Q100 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 headquartered in Nijmegen, Netherlands, specializing in high-performance logic, analog, and discrete components for automotive, industrial, and consumer markets.
The 74AHCT series targets automotive-grade logic interoperability, delivering TTL-compatible CMOS devices optimized for robust operation in harsh environments with stringent reliability and longevity requirements.
FAQ
What is the minimum clock pulse width required for reliable operation?
The minimum HIGH and LOW pulse width for CP is 5.0 ns across the full −40 °C to +125 °C range at VCC = 4.5–5.5 V. This ensures sufficient time for internal metastability resolution and guarantees predictable edge-triggered behavior even under worst-case voltage and temperature conditions.
Can the 74AHCT377D-Q100 interface directly with 3.3 V microcontrollers?
No - its inputs require VIH ≥ 2.0 V but are specified only for VCC = 4.5–5.5 V operation. Driving it from a 3.3 V MCU GPIO risks marginal VIH margin and undefined behavior. A level shifter or 5 V-tolerant MCU output is required for reliable interfacing.
Is the data enable (E) pin synchronized to the clock internally?
No - E is an asynchronous control input. It must be stable for at least 4.5 ns before the LOW-to-HIGH CP transition to ensure predictable latching. Violating this setup time may cause metastability or indeterminate output states on one or more flip-flops.
Does this device support hot insertion or live swapping in powered systems?
No - the absolute maximum rating for VI is −0.5 V to +7.0 V, but no hot-swap protection circuitry (e.g., power-on reset, Ioff, or back-drive immunity) is implemented. Applying signals before VCC stabilization risks latch-up or permanent damage per JEDEC JESD78.
74AHCT377D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 130 MHz
- Max Propagation Delay @ V, Max CL:
- 10.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 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-SO
74AHCT377D-Q100J FAQ
1.How can I place an order for 74AHCT377D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT377D-Q100J 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 74AHCT377D-Q100J reliable?
The price and inventory of 74AHCT377D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT377D-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHCT377D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT377D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT377D-Q100J?
74AHCT377D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT377D-Q100J 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 74AHCT377D-Q100J?
For technical support, including 74AHCT377D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT377D-Q100J requirements.
6.How does Aetrix verify that 74AHCT377D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHCT377D-Q100J 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 74AHCT377D-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHCT377D-Q100J?
All 74AHCT377D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT377D-Q100J, 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 74AHCT377D-Q100J part is unused and in its original packaging.
Return procedure for 74AHCT377D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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