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NXP Semiconductors 74ABT377AD,118
- Part No.:
- 74ABT377AD,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ABT377AD,118.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,741
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Product details
Overview
74ABT377AD,118 from NXP Semiconductors (formerly Philips) is an octal positive-edge-triggered D-type flip-flop with active-low enable, designed for addressable register and data synchronization functions in 5V TTL-compatible digital systems. It features 8-bit parallel data storage, 150 MHz maximum clock frequency, ±32 mA/±64 mA output drive capability, and operates across –40°C to +85°C.
For engineers reviewing the 74ABT377AD,118 datasheet, 74ABT377AD,118 pinout, 74ABT377AD,118 application, or 74ABT377AD,118 equivalent, this device is selected for high-speed register buffering, bus interface latching, and synchronous control logic where precise edge-triggered timing and robust output drive are required.
Technical Context
The 74ABT377AD,118 implements a fully edge-triggered architecture with a common buffered clock (CP) input and shared active-low enable (E), ensuring simultaneous loading of all eight D inputs into Q outputs on each rising clock edge. Its BiCMOS process delivers low propagation delay (3.1 ns typical CP→Qn) while maintaining TTL-level input thresholds (VIL = 0.8 V, VIH = 2.0 V) and 5V supply compatibility.
It supports strict AC timing requirements including 1.5 ns minimum setup time (Dn to CP), –0.6 ns hold time (Dn to CP), and 2.0 ns setup time (E to CP). Power-up reset ensures Q outputs initialize low, and latch-up protection exceeds 500 mA per JEDEC JC40.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Octal D-type flip-flop with active-low enable and positive-edge clock triggering |
| Max Clock Frequency | 150 MHz at –40°C to +85°C - enables high-throughput register staging in fast control paths |
| Propagation Delay (CP→Qn) | 3.1 ns typical (CL = 50 pF, VCC = 5 V) - supports tight timing budgets in synchronous logic |
| Output Drive | +64 mA sink / –32 mA source - drives heavy capacitive loads or multiple TTL inputs without buffers |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5V TTL and mixed-voltage system rails |
| Input Capacitance | 4 pF - minimizes loading on upstream drivers and preserves signal integrity |
| Power-Up Reset | Outputs initialize low at power-on - prevents undefined states during system boot |
Pinout & Package
74ABT377AD,118 is supplied in a 20-pin plastic SO (Small Outline) package per SOT163-1, with 7.5 mm body width and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E | Active-low enable: holds register state when high; allows data capture on CP rising edge when low |
| 2,5,6,9,12,15,16,19 | Q0–Q7 | Complementary registered outputs - provide synchronized 8-bit parallel data storage |
| 3,4,7,8,13,14,17,18 | D0–D7 | Asynchronous data inputs - sampled one setup time before CP rising edge |
| 10 | GND | Ground reference (0 V) - required for stable biasing and noise immunity |
| 11 | CP | Positive-edge-triggered clock - controls simultaneous transfer of Dn to Qn |
| 20 | VCC | Positive supply (4.5–5.5 V) - powers internal BiCMOS circuitry and output stages |
Key Features
| Feature | Design Value |
|---|---|
| 8-bit edge-triggered register | Enables deterministic, cycle-aligned data capture across all bits without skew-induced metastability |
| High-output drive (+64 mA/–32 mA) | Directly interfaces with legacy TTL loads or drives long PCB traces without external buffers |
| Latch-up immunity >500 mA | Ensures robust operation under transient overvoltage or ESD events in industrial environments |
| Power-up reset | Guarantees known Q-state at system startup, eliminating need for external reset sequencing |
| TTL-compatible input thresholds | Interoperates seamlessly with 74LS, 74F, and other 5V logic families without level translation |
Applications
| Microprocessor Address Latching | Bus Interface Register |
|---|---|
|
Use Scenario: Capturing and holding 8-bit address segments during microprocessor memory access cycles. IC Role / Device Role / Timing Role: Edge-triggered register that latches address lines synchronously with CPU clock edge and enable signal. Use Value: Eliminates address bus glitches and ensures stable address presentation to memory or peripheral decoders during read/write windows. |
Use Scenario: Isolating and synchronizing data between two asynchronous bus domains (e.g., CPU and peripheral controller). IC Role / Device Role / Timing Role: Bidirectional data staging register controlled by separate enable and clock signals for domain crossing. Use Value: Prevents metastability and data corruption during handshaking, enabling reliable inter-domain communication at up to 150 MHz. |
| Industrial Control I/O Expansion | Digital Signal Path Synchronization |
|
Use Scenario: Buffering parallel I/O status from sensors or actuators in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Input capture register that samples real-time I/O states on a deterministic system clock edge. Use Value: Provides atomic, jitter-free snapshot of 8-bit I/O states for deterministic control loop execution in harsh EMI environments. |
Use Scenario: Aligning asynchronous digital signals (e.g., ADC output streams or encoder pulses) to a master system clock. IC Role / Device Role / Timing Role: Synchronizer register that eliminates setup/hold violations when feeding data into clocked processing blocks. Use Value: Reduces timing uncertainty to <1 ns (via 3.1 ns tPLH), enabling precise phase alignment in measurement and feedback systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT377N | DIP-20 package only; identical AC/DC specs and pinout | Suitable for through-hole prototyping or legacy board rework; lacks SO's space efficiency | Select when mechanical mounting or hand-soldering is required; same logic behavior and timing |
| 74LVX377M | 3.3V-only supply (2.7–3.6 V); lower drive (±24 mA); 100 MHz max fCLK | Targets low-power 3.3V systems; not 5V-tolerant; requires level-shifting for 5V interface | Choose for battery-powered or mixed-voltage designs where 5V operation is unnecessary |
Compared with SN74ABT377N and 74LVX377M, the 74ABT377AD,118 uniquely combines 5V TTL compatibility, 150 MHz performance, and SO packaging-making it optimal for space-constrained, high-speed industrial control boards requiring direct 5V bus interfacing without voltage translation.
Availability
74ABT377AD,118 is available at Aetrix Electronics and suitable for industrial control systems, embedded instrumentation, and legacy 5V digital logic upgrades requiring stable component supply and long-term obsolescence mitigation.
Supply support for 74ABT377AD,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
NXP Semiconductors is a global semiconductor leader delivering high-performance logic, analog, and interface solutions for industrial, automotive, and communications markets.
The 74ABT377AD,118 belongs to NXP's ABT-series advanced BiCMOS logic family, engineered for high-speed, low-noise 5V register and bus interface applications in mission-critical embedded systems.
FAQ
What is the operating voltage range for the 74ABT377AD,118?
The 74ABT377AD,118 operates over a supply voltage range of 4.5 V to 5.5 V. This range ensures compatibility with standard 5V TTL systems while accommodating typical rail tolerances. Operation outside this range may cause functional failure or permanent damage, as specified in the absolute maximum ratings (VCC = –0.5 V to +7.0 V is destructive).
Does the 74ABT377AD,118 have built-in power-up reset functionality?
Yes, the 74ABT377AD,118 features power-up reset: all Q outputs initialize to a low state when VCC rises above threshold, regardless of D-input or clock conditions. This behavior is confirmed in the DC Electrical Characteristics table (VRST ≤ 0.55 V at VCC = 5.5 V, IO = 1 mA) and eliminates need for external reset circuits during system startup.
Is the 74ABT377AD,118 pin-compatible with older 74ABT377 variants?
Yes, the 74ABT377AD,118 shares identical pin configuration, logic function, and electrical specifications with all 74ABT377A variants (e.g., DIP, SSOP, TSSOP packages). The "D" suffix denotes SO package (SOT163-1), and the "118" indicates tape-and-reel packaging - both do not affect pinout or functionality.
What is the maximum output current capability of the 74ABT377AD,118?
The 74ABT377AD,118 provides ±32 mA high-level source current and ±64 mA low-level sink current per output, as specified in the Recommended Operating Conditions table. This drive strength allows direct connection to multiple 74LS inputs or resistive loads without external buffers, verified under VCC = 4.5 V conditions.
Can the 74ABT377AD,118 be used in systems requiring ESD immunity above 2 kV?
Yes, the 74ABT377AD,118 exceeds 2000 V HBM ESD protection per MIL-STD-883 Method 3015 and 200 V MM, as stated in its Features section. This level of immunity supports reliable operation in assembly, test, and field environments where static discharge is a concern, including industrial control panels and benchtop instrumentation.
74ABT377AD,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- 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:
- 250 MHz
- Max Propagation Delay @ V, Max CL:
- 3.6ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 250 µA
- Input Capacitance:
- 4 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74ABT377AD,118 FAQ
1.How can I place an order for 74ABT377AD,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT377AD,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 74ABT377AD,118 reliable?
The price and inventory of 74ABT377AD,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT377AD,118 is usually 5 days.
3.What payment methods are accepted for 74ABT377AD,118?
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4.How is shipping managed for 74ABT377AD,118?
74ABT377AD,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT377AD,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 74ABT377AD,118?
For technical support, including 74ABT377AD,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT377AD,118 requirements.
6.How does Aetrix verify that 74ABT377AD,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT377AD,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 74ABT377AD,118 meets industry standards.
7.What is the process for return or replacement of 74ABT377AD,118?
All 74ABT377AD,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT377AD,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 74ABT377AD,118 part is unused and in its original packaging.
Return procedure for 74ABT377AD,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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