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NXP Semiconductors 74ABT377APW,112
- Part No.:
- 74ABT377APW,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT377APW,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
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Product details
Overview
74ABT377APW,112 from NXP Semiconductors (formerly Philips Semiconductors) is an octal positive-edge-triggered D-type flip-flop with active-low enable, designed for address/data synchronization in register-based digital systems. It operates from 4.5 V to 5.5 V, delivers ±64 mA/–32 mA output drive, features 3.1 ns typical tPLH propagation delay at 5 V, and supports –40°C to +85°C industrial temperature range.
For engineers reviewing the 74ABT377APW,112 datasheet, 74ABT377APW,112 pinout, 74ABT377APW,112 application, or 74ABT377APW,112 equivalent, key selection criteria include edge-triggered register timing, high-current drive capability, enable-controlled synchronous loading, and TSSOP-20 packaging for space-constrained PCB layouts.
Technical Context
The 74ABT377APW,112 implements eight independent D-type flip-flops sharing a common clock (CP) and active-low enable (E), with all outputs updated on the rising edge of CP when E is low. Its BiCMOS architecture enables low static current (0.5 µA typical ICCH) while sustaining high-speed operation up to 150 MHz over full temperature range.
Input setup/hold times are specified at 1.5 ns (ts) and 1.0 ns (th) for D-to-CP, and 2.0 ns / 1.0 ns for E-to-CP. The device includes power-up reset ensuring Q outputs initialize low, latch-up protection >500 mA per JEDEC JC40.2, and ESD immunity >2000 V 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 | 4.5 V to 5.5 V - compatible with standard 5 V TTL/ABT logic rails |
| Propagation Delay | 3.1 ns (tPLH, CP→Qn, CL = 50 pF, VCC = 5 V) - enables sub-300 MHz system timing margins |
| Output Drive | +64 mA sink / –32 mA source - drives heavy capacitive loads or multiple TTL inputs directly |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and data acquisition |
| Input Capacitance | 4 pF - minimizes loading on upstream drivers and preserves signal integrity |
| Power-Up Reset | Outputs initialize low at VCC ramp - prevents undefined bus states during power sequencing |
Pinout & Package
74ABT377APW,112 is housed in a 20-pin plastic TSSOP (Thin Shrink Small Outline Package), Type I, body width 4.4 mm (SOT360-1), with 0.65 mm lead pitch and exposed pad not present. Pin 1 is marked by a dot or bevelled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E | Active-low enable - must be stable ≥2.0 ns before CP rising edge for reliable load control |
| 2, 5, 6, 9, 12, 15, 16, 19 | Q0–Q7 | True outputs - each reflects corresponding D input sampled at CP rising edge when E = L |
| 3, 4, 7, 8, 13, 14, 17, 18 | D0–D7 | Data inputs - sampled one setup time before CP rising edge; hold time allows negative margin (–0.4 ns) |
| 10 | GND | Ground reference - dedicated return path for all internal logic and output currents |
| 11 | CP | Common clock input - rising-edge sensitive; minimum pulse width 1.5 ns (high/low) |
| 20 | VCC | Positive supply - powers all internal BiCMOS circuitry; decoupling required within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| High-output drive strength | +64 mA sink capability supports direct interfacing to multiple 74-series TTL loads without buffers |
| Synchronous enable control | Active-low E input gates register loading without affecting clock tree timing or adding skew |
| Robust latch-up immunity | Exceeds 500 mA per JEDEC JC40.2 - ensures reliability in noisy industrial environments |
| Power-up initialization | Guaranteed low output state at power-on eliminates need for external reset circuitry |
| Low input capacitance | 4 pF per input reduces fan-out loading and preserves rise/fall times in high-speed buses |
Applications
| Address Latching | Data Buffering |
|---|---|
|
Use Scenario: Capturing microprocessor address bus signals during memory or I/O access cycles. IC Role / Device Role / Timing Role: Edge-triggered register holding stable address values for decoder enable timing. Use Value: Eliminates address glitches during bus contention; enables clean decode window with 3.1 ns propagation delay. |
Use Scenario: Isolating and synchronizing parallel data between mismatched clock domains (e.g., CPU ↔ peripheral). IC Role / Device Role / Timing Role: Synchronous data capture stage with enable-gated loading aligned to system clock edges. Use Value: Prevents metastability in inter-domain transfers; ±64 mA drive sustains signal integrity across 10+ cm PCB traces. |
| Bus Interface Register | Industrial Control Latch |
|
Use Scenario: Holding control word outputs from a microcontroller to drive discrete I/O expanders or relay drivers. IC Role / Device Role / Timing Role: Output register providing glitch-free, synchronized control bits to external power stages. Use Value: Power-up reset ensures safe default (low) state; high sink current directly drives LED indicators or optocoupler inputs. |
Use Scenario: Storing sensor readout or status flags in programmable logic controllers (PLCs) with deterministic scan cycles. IC Role / Device Role / Timing Role: Deterministic sampling node capturing process variables at precise PLC cycle boundaries. Use Value: –40°C to +85°C rating ensures operation in cabinet-mounted industrial enclosures; latch-up immunity prevents field failures. |
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 |
|---|---|---|---|
| SN74ABT377ADW | Same logic function and AC/DC specs; packaged in SOIC-20 (SOT163-1), 7.5 mm body width | Requires larger PCB footprint; better thermal dissipation in high-power density layouts | Select when board space permits larger package and higher thermal mass is beneficial |
| 74LVT377PW,112 | Lower voltage operation (2.7–3.6 V); 3.3 V CMOS-compatible; 4.5 ns tPLH; lower drive (±24 mA) | Designed for mixed-voltage 3.3 V systems; incompatible with 5 V logic without level translation | Select only for 3.3 V domains where reduced power and voltage compatibility outweigh speed/drive loss |
Compared with SN74ABT377ADW and 74LVT377PW,112, the 74ABT377APW,112 uniquely balances 5 V robustness, 3.1 ns speed, and +64 mA sink drive in a compact TSSOP-20 package-making it optimal for space-constrained industrial control boards requiring legacy 5 V compatibility.
Availability
74ABT377APW,112 is available at Aetrix Electronics and suitable for address latching, data buffering, and bus interface register applications requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant packaging.
Supply support for 74ABT377APW,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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic and analog product lines.
The 74ABT377APW,112 belongs to NXP's ABT (Advanced BiCMOS Technology) logic family, engineered for high-speed, high-drive 5 V digital systems where timing precision and noise immunity are critical in industrial control and instrumentation.
FAQ
What is the maximum clock frequency supported by the 74ABT377APW,112?
The 74ABT377APW,112 supports a maximum clock frequency of 150 MHz over its full operating temperature range (–40°C to +85°C) and 250 MHz at +25°C. This specification assumes proper termination, 50 pF load, and compliance with setup/hold timing requirements. The 74ABT377APW,112 achieves this performance using BiCMOS circuitry that combines bipolar speed with CMOS low power.
Does the 74ABT377APW,112 have built-in power-up reset functionality?
Yes, the 74ABT377APW,112 incorporates power-up reset logic that guarantees all Q outputs initialize to a low state when VCC ramps from 0 V to operating voltage. This behavior is verified under test condition VRST ≤ 0.55 V at VCC = 5.5 V and IO = 1 mA. The 74ABT377APW,112 eliminates the need for external POR circuits in systems where defined initial states are mandatory.
What are the absolute maximum ratings for supply voltage and output current on the 74ABT377APW,112?
The 74ABT377APW,112 has an absolute maximum DC supply voltage (VCC) of –0.5 V to +7.0 V and a maximum DC output current (IOUT) of 128 mA in the low state. Exceeding these limits risks permanent damage. The 74ABT377APW,112 is rated for 64 mA sink and 32 mA source under recommended operating conditions, which represent safe, sustained operational limits-not absolute maxima.
Is the 74ABT377APW,112 pin-compatible with older 74ABT377 variants?
Yes, the 74ABT377APW,112 maintains identical pinout and electrical specifications with earlier 74ABT377 versions including the original 74ABT377 and 74ABT377A. All share the same 20-pin TSSOP (SOT360-1) footprint, function table, and timing parameters. The 74ABT377APW,112 is a direct replacement for legacy 74ABT377A PW packages in existing designs.
What is the input leakage current specification for the 74ABT377APW,112 at 25°C?
The 74ABT377APW,112 exhibits ±0.01 µA typical input leakage current (II) at Tamb = +25°C, VCC = 5.5 V, and VI = GND or 5.5 V. This ultra-low leakage minimizes unintended current paths in high-impedance interfaces and contributes to the device's low quiescent power consumption. The 74ABT377APW,112 maintains ≤ ±1.0 µA over its full temperature range.
74ABT377APW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- 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:
- 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,112 FAQ
1.How can I place an order for 74ABT377APW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT377APW,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 74ABT377APW,112 reliable?
The price and inventory of 74ABT377APW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT377APW,112 is usually 5 days.
3.What payment methods are accepted for 74ABT377APW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT377APW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT377APW,112?
74ABT377APW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT377APW,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 74ABT377APW,112?
For technical support, including 74ABT377APW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT377APW,112 requirements.
6.How does Aetrix verify that 74ABT377APW,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT377APW,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 74ABT377APW,112 meets industry standards.
7.What is the process for return or replacement of 74ABT377APW,112?
All 74ABT377APW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT377APW,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 74ABT377APW,112 part is unused and in its original packaging.
Return procedure for 74ABT377APW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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