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Nexperia USA Inc. 74HCT377PW-Q100J
- Part No.:
- 74HCT377PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT377PW-Q100J.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
74HCT377PW-Q100 from Nexperia is an automotive-grade octal positive-edge-triggered D-type flip-flop with data enable (E), operating from 4.5 V to 5.5 V over -40 °C to +125 °C. It features eight independent D-to-Q registers, TTL-compatible inputs, and a common clock (CP) input. Used in automotive body control modules for synchronized I/O latching and signal buffering.
For engineers reviewing the 74HCT377PW-Q100 datasheet, 74HCT377PW-Q100 pinout, 74HCT377PW-Q100 application, or 74HCT377PW-Q100 equivalent, this page delivers verified timing parameters, automotive qualification details, TSSOP20 package layout, and functional alternatives for ECU-level digital synchronization design.
Technical Context
The device implements eight independent edge-triggered D-type latches sharing one clock (CP) and one active-low data enable (E). When E is LOW, each Qn output captures the corresponding Dn input on the LOW-to-HIGH CP transition, subject to set-up (12 ns @ 4.5 V) and hold (3 ns @ 4.5 V) timing constraints.
Inputs are TTL-level compatible (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), outputs drive ±4.0 mA, and propagation delay is 17 ns typical (CP to Qn, CL = 50 pF, VCC = 4.5 V). The architecture supports synchronous parallel data capture without internal reset or preset lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds, CMOS output drive |
| Supply Voltage Range | 4.5 V to 5.5 V - Matches automotive 5 V rail with margin for ripple |
| Operating Temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood use |
| Propagation Delay (tpd) | 17 ns typ (CP → Qn, VCC = 4.5 V, CL = 50 pF) - Enables ≤22 MHz synchronous operation |
| Set-up / Hold Time | 12 ns / 3 ns (Dn, En to CP) - Defines minimum data stability window before clock edge |
| Output Drive Strength | ±4.0 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to drive multiple 74-series inputs or LED indicators |
| Power Dissipation | 8.0 μA ICC (quiescent, VCC = 5.5 V) - Ultra-low static current for always-on automotive nodes |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (E) | Data enable input | Active-LOW global latch enable - disables all Q updates when HIGH |
| 2–9, 12, 15–16, 19 (Q0–Q7) | Flip-flop outputs | Eight registered outputs, each reflecting Dn state captured on prior enabled CP edge |
| 3–4, 7–8, 13–14, 17–18 (D0–D7) | Data inputs | Eight asynchronous data inputs - sampled only when E = LOW and CP rises |
| 10 (GND) | Ground reference | 0 V return path for all signals and supply current |
| 11 (CP) | Clock input | Positive-edge-triggered master clock - initiates sampling of Dn/E state |
| 20 (VCC) | Supply voltage | Primary power rail - must be decoupled locally with ≥100 nF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications with full temperature range (-40 °C to +125 °C) and reliability testing |
| TTL-compatible input thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures interoperability with legacy 5 V microcontrollers and logic |
| Clamp diodes on all inputs | Enables safe interface to voltages exceeding VCC using external current-limiting resistors |
| ESD robustness | HBM > 2000 V, CDM > 1000 V - meets stringent automotive ESD immunity requirements |
| Low dynamic power | CPD = 20 pF - enables predictable dynamic power calculation (PD = CPD × VCC² × fi) |
Applications
| Automotive Body Control Unit (BCU) | Instrument Cluster Signal Synchronization |
|---|---|
Use Scenario: Latching door lock status, mirror position, and seat memory signals from analog sensors and switches before CAN transmission. IC Role / Device Role / Timing Role: Octal parallel register capturing 8-bit sensor/switch states synchronously to MCU clock domain. Use Value: Eliminates metastability risk during domain crossing and provides deterministic sampling aligned to system clock edge. |
Use Scenario: Capturing real-time vehicle speed, RPM, and warning lamp states for display rendering in digital instrument clusters. IC Role / Device Role / Timing Role: Input synchronizer buffering volatile bus signals into stable parallel data for graphics controller readout. Use Value: Ensures glitch-free display updates by eliminating race conditions between asynchronous sensor updates and display refresh cycles. |
| Engine Control Module (ECM) Diagnostic Interface | Automotive Lighting Control Logic |
Use Scenario: Isolating and latching diagnostic switch inputs (e.g., service mode, calibration triggers) in engine management systems. IC Role / Device Role / Timing Role: Debounced, edge-synchronized input capture stage preceding firmware polling or interrupt handling. Use Value: Guarantees single-cycle registration of momentary switch actuations, preventing missed or double-counted events. |
Use Scenario: Holding headlight, fog light, and DRL enable states across power cycling or MCU reset sequences in lighting control units. IC Role / Device Role / Timing Role: Non-volatile state latch (with external backup power) preserving user-configured lighting modes. Use Value: Maintains driver-selected lighting configuration without requiring EEPROM write cycles or MCU reinitialization. |
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 |
|---|---|---|---|
| 74HC377PW-Q100 | CMOS-level inputs (VIH = 3.15 V min @ VCC = 4.5 V); higher propagation delay (16 ns typ) | Better noise immunity but incompatible with TTL logic sources; requires level-shifting if interfacing with 5 V microcontrollers | Select when interfacing exclusively with HC/HCT logic families or when lower input current (<1 μA) is critical |
| SN74LV377APWR | Lower VCC range (2.0–5.5 V); LV logic family; 3.3 V optimized; no AEC-Q100 qualification | Suitable for 3.3 V automotive infotainment subsystems but not qualified for powertrain or chassis applications | Choose for cost-sensitive non-safety-critical 3.3 V domains where AEC-Q100 is not mandated |
Compared with 74HC377PW-Q100 and SN74LV377APWR, the 74HCT377PW-Q100 uniquely balances TTL compatibility, AEC-Q100 Grade 1 qualification, and 5 V automotive rail operation-making it the only drop-in solution for legacy 5 V ECU designs requiring guaranteed automotive reliability.
Availability
74HCT377PW-Q100 is available at Aetrix Electronics and suitable for automotive body control units, instrument clusters, engine control modules, and lighting control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT377PW-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 specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.
This device belongs to Nexperia's automotive-qualified 74HCT logic family, engineered specifically for robust, low-power, synchronous data capture in harsh-temperature automotive environments.
FAQ
Is the 74HCT377PW-Q100 pin-compatible with the 74HC377PW-Q100?
Yes - both share identical TSSOP20 pinout (SOT360-1), same pin functions, and identical footprint. The only differences are input threshold levels (TTL vs. CMOS) and minor timing variations; no PCB redesign is needed for substitution.
Does this device include a master reset or clear function?
No - the 74HCT377PW-Q100 has no asynchronous reset (CLR) or preset (PRE) inputs. State initialization must be handled externally via D-input preloading and controlled clocking, or through system-level MCU reset sequencing.
What is the maximum clock frequency supported at 125 °C ambient?
At -40 °C to +125 °C, the maximum operating frequency is 18 MHz (min value from fmax spec table), confirmed by tW (pulse width) and tpd limits under worst-case voltage and temperature conditions.
Can the E (enable) input be used as a synchronous enable by tying it to a register output?
Yes - E is sampled synchronously with CP. If driven by another flip-flop's Q output, it enables conditional latching: only when both the source register and E are asserted will the 74HCT377 capture new D-data on the next CP edge.
74HCT377PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 53 MHz
- Max Propagation Delay @ V, Max CL:
- 32ns @ 4.5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 5.2mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74HCT377PW-Q100J FAQ
1.How can I place an order for 74HCT377PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT377PW-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 74HCT377PW-Q100J reliable?
The price and inventory of 74HCT377PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT377PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT377PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT377PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT377PW-Q100J?
74HCT377PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT377PW-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 74HCT377PW-Q100J?
For technical support, including 74HCT377PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT377PW-Q100J requirements.
6.How does Aetrix verify that 74HCT377PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT377PW-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 74HCT377PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT377PW-Q100J?
All 74HCT377PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT377PW-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 74HCT377PW-Q100J part is unused and in its original packaging.
Return procedure for 74HCT377PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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