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NXP Semiconductors 74ABT377APW,118
- Part No.:
- 74ABT377APW,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT377APW,118.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,978
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Product details
Overview
74ABT377APW,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, ±64mA/–32mA output drive, 150MHz maximum clock frequency, and operates across –40°C to +85°C.
For engineers reviewing the 74ABT377APW,118 datasheet, 74ABT377APW,118 pinout, 74ABT377APW,118 application, or 74ABT377APW,118 equivalent, key selection criteria include edge-triggered register timing, enable-controlled data latching, high-current drive capability, and TSSOP-20 packaging for space-constrained logic interfaces.
Technical Context
The 74ABT377APW,118 implements a fully synchronous 8-bit register architecture where all eight D-type flip-flops share a common rising-edge clock (CP) and a single active-low enable (E). Data at D0–D7 is captured on the Low-to-High transition of CP only when E is asserted low - enabling precise address/data alignment in bus-hold or memory-mapped control paths.
Its BiCMOS process delivers low propagation delay (tPLH/tPHL ≤ 4.9ns at VCC = 5.0V), tight setup/hold timing (ts = 1.5ns, th = 1.0ns for Dn→CP), and robust DC characteristics including power-up reset (VRST ≤ 0.55V), latch-up immunity (>500mA), and ESD protection (2000V HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal D-type flip-flop with active-low enable and common rising-edge clock |
| Supply Voltage | 4.5V to 5.5V - ensures compatibility with 5V TTL and mixed-voltage system rails |
| Max Clock Frequency | 150MHz at –40°C to +85°C - supports high-speed address/data registration in legacy bus architectures |
| Output Drive | +64mA sink / –32mA source - drives heavy capacitive loads or multiple TTL inputs without buffering |
| Propagation Delay | 3.1–4.9ns (CP to Qn, CL = 50pF) - enables sub-7ns cycle timing margins in synchronous control logic |
| Input Capacitance | 4pF - minimizes loading on upstream drivers and preserves signal integrity in fan-out-critical paths |
| Power-Up Reset | Outputs default low on VCC ramp - prevents undefined bus states during system initialization |
Pinout & Package
74ABT377APW,118 is housed in a 20-pin plastic TSSOP (Thin Shrink Small Outline Package), Type I, body width 4.4 mm (SOT360-1), optimized for surface-mount assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E | Active-low enable - gates clock propagation; must be stable ≥1.5ns before CP rising edge |
| 2,5,6,9,12,15,16,19 | Q0–Q7 | Registered data outputs - reflect Dn state sampled one setup time before CP rising edge |
| 3,4,7,8,13,14,17,18 | D0–D7 | Data inputs - sampled synchronously on CP rising edge when E is low |
| 10 | GND | Ground reference - return path for all internal logic and output currents |
| 11 | CP | Common clock input - rising-edge sensitive; controls simultaneous loading of all eight flip-flops |
| 20 | VCC | Positive supply - powers BiCMOS core; requires local 0.1µF decoupling per device |
Key Features
| Feature | Design Value |
|---|---|
| Edge-triggered register | Simultaneous 8-bit capture on CP rising edge - eliminates metastability in multi-bit control latching |
| Enable-controlled operation | Single E input synchronizes register updates across address/data buses - simplifies timing control in microprocessor peripherals |
| High-output current drive | +64mA sink capability - directly interfaces with legacy TTL loads or LED indicators without external drivers |
| Latch-up immunity | Exceeds 500mA per JEDEC JC40.2 - ensures robustness in noisy industrial environments with voltage transients |
| Power-up reset behavior | Guaranteed low output state at power-on - prevents spurious signals on shared data lines during boot |
Applications
| Microprocessor Address Latching | Bus Interface Synchronization |
|---|---|
Use Scenario: Capturing 8-bit address segments from multiplexed CPU address/data bus during ALE assertion. IC Role / Device Role / Timing Role: Edge-triggered register holding stable address bits while data transfers occur on same bus lines. Use Value: Eliminates need for discrete gating logic; enables clean separation of address and data phases using single CP/E control. |
Use Scenario: Aligning asynchronous peripheral status flags to a central system clock domain before CPU read access. IC Role / Device Role / Timing Role: Synchronizing level-sensitive inputs to synchronous clock edges to prevent metastability in interrupt controllers. Use Value: Provides deterministic sampling window via E-gated CP, reducing timing uncertainty in cross-domain handshaking. |
| Memory-Mapped I/O Register | Industrial Control Data Capture |
Use Scenario: Storing configuration bits written by host processor to peripheral devices via 8-bit parallel interface. IC Role / Device Role / Timing Role: Static register holding control settings until next write cycle - acts as hardware-configurable latch. Use Value: Maintains state across power cycles when backed by nonvolatile memory; supports hot-plug-safe register retention. |
Use Scenario: Capturing real-time sensor readings (e.g., 8-bit ADC outputs) synchronized to PLC scan clock. IC Role / Device Role / Timing Role: High-drive register buffering analog-to-digital conversion results for downstream processing or display drivers. Use Value: ±64mA output drive directly drives LED arrays or optocouplers - reduces BOM count in panel-mounted instrumentation. |
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; identical AC/DC specs but higher thermal resistance and larger footprint | Suitable for prototyping or through-hole legacy designs; not compatible with automated SMT assembly | Select when manual assembly or socket-based testing is required; avoid for volume production with fine-pitch routing. |
| 74LVX377M | 3.3V-only operation (2.7–3.6V); lower drive (±24mA); 100MHz max fCLK; different setup/hold timing | Targets low-voltage mixed-signal systems; incompatible with 5V bus interfaces without level translation | Choose only for 3.3V domains requiring reduced power; verify timing closure with slower clock edges and tighter margins. |
Compared with SN74ABT377N and 74LVX377M, the 74ABT377APW,118 uniquely combines 5V TTL compatibility, TSSOP-20 compactness, and +64mA sink drive - making it optimal for space-constrained, high-noise industrial control boards requiring direct 5V bus interfacing.
Availability
74ABT377APW,118 is available at Aetrix Electronics and suitable for microprocessor address latching, bus interface synchronization, and memory-mapped I/O register applications requiring stable component supply, long-term industrial temperature support, and legacy 5V logic compatibility.
Supply support for 74ABT377APW,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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic IC development.
The 74ABT377APW,118 belongs to NXP's ABT-series advanced BiCMOS logic family, engineered for high-speed, high-drive 5V digital interfacing in industrial control, test equipment, and legacy computing infrastructure.
FAQ
What is the operating voltage range for the 74ABT377APW,118?
The 74ABT377APW,118 operates over a recommended supply voltage range of 4.5V to 5.5V. This ensures full compatibility with standard 5V TTL systems while accommodating typical rail tolerances. Operation outside this range may result in undefined logic states or degraded timing performance, and absolute maximum ratings prohibit sustained use below –0.5V or above +7.0V on VCC.
Does the 74ABT377APW,118 have built-in power-up reset functionality?
Yes, the 74ABT377APW,118 features guaranteed power-up reset behavior: all Q outputs default to a low state (≤0.55V) during VCC ramp-up when IO = 1mA. This prevents floating or indeterminate bus states at system startup, eliminating the need for external reset circuitry in many 5V control applications.
What is the maximum clock frequency supported by the 74ABT377APW,118 across its full temperature range?
The 74ABT377APW,118 supports a maximum clock frequency of 150MHz over the full industrial temperature range of –40°C to +85°C at VCC = 5.0V ±0.5V. At 25°C, typical performance reaches 250MHz, but design margining must use the 150MHz specification for reliable operation in thermally demanding environments.
How does the enable (E) input affect timing behavior in the 74ABT377APW,118?
The E input of the 74ABT377APW,118 must be stable for at least 1.5ns before the CP rising edge to ensure predictable data capture. When E is high, Q outputs retain their previous state regardless of CP transitions; only when E is low does the rising edge of CP load Dn into Qn. This enables precise gating of register updates in synchronized bus protocols.
Is the 74ABT377APW,118 pin-compatible with other packages in the 74ABT377A family?
Yes, the 74ABT377APW,118 shares identical pinout and electrical specifications with other 74ABT377A variants (e.g., DIP-20, SO-20, SSOP-20), differing only in package type (TSSOP-20, SOT360-1). Signal assignments, pin numbering, and functional behavior are fully consistent - allowing drop-in replacement where board layout accommodates the smaller TSSOP footprint.
74ABT377APW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm 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-TSSOP
74ABT377APW,118 FAQ
1.How can I place an order for 74ABT377APW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT377APW,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 74ABT377APW,118 reliable?
The price and inventory of 74ABT377APW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT377APW,118 is usually 5 days.
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74ABT377APW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT377APW,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 74ABT377APW,118?
For technical support, including 74ABT377APW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT377APW,118 requirements.
6.How does Aetrix verify that 74ABT377APW,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT377APW,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 74ABT377APW,118 meets industry standards.
7.What is the process for return or replacement of 74ABT377APW,118?
All 74ABT377APW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT377APW,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 74ABT377APW,118 part is unused and in its original packaging.
Return procedure for 74ABT377APW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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