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Nexperia USA Inc. 74HC173D,653
- Part No.:
- 74HC173D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC173D,653.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,869
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Product details
Overview
74HC173D,653 from Nexperia is a quad positive-edge-triggered D-type flip-flop with 3-state outputs, dual input enable (E1/E2), dual output enable (OE1/OE2), and asynchronous master reset (MR). It operates at 2.0–6.0 V, delivers 35 ns propagation delay at 6 V/50 pF, supports -40 °C to +125 °C, and is packaged in SO16 (SOT109-1). It serves as a synchronous register in digital control logic for industrial I/O expansion.
For engineers reviewing the 74HC173D,653 datasheet, 74HC173D,653 pinout, 74HC173D,653 application, or 74HC173D,653 equivalent, this page provides verified functional behavior, validated timing parameters (tpd, tsu, th, fmax), SO16 package mapping, and direct substitution guidance - all grounded in Nexperia's Rev. 5 (Jan 2024) product data sheet.
Technical Context
This device implements four independent edge-triggered D flip-flops sharing common clock (CP), master reset (MR), and dual enable controls. Input enables (E1/E2) gate data loading synchronously on CP rising edge; output enables (OE1/OE2) independently place Q0–Q3 into high-impedance state without affecting internal register state.
It features TTL-compatible inputs only in the 74HCT173 variant; the 74HC173D,653 uses CMOS-level inputs (VIH = 3.15 V min at VCC = 4.5 V). Asynchronous MR forces all outputs LOW regardless of clock or enable states, and clamp diodes permit safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC (High-speed CMOS); compatible with 3.3 V and 5 V systems, not TTL-input compatible |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage board design and battery-backed operation down to 2 V |
| Propagation Delay (tpd) | 30 ns max at VCC = 6.0 V, CL = 50 pF - enables reliable operation up to 20 MHz in synchronous pipelines |
| Set-up / Hold Time | tsu = 13 ns, th = 1 ns at VCC = 6.0 V - defines minimum data stability window before/after CP rising edge |
| Output Drive Strength | ±7.8 mA at VCC = 6.0 V - sufficient to drive 10 LS-TTL loads or 20 CMOS inputs directly |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor controllers |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - reduces risk of field failure during handling and PCB assembly |
Pinout & Package
74HC173D,653 is housed in a plastic small outline package (SO16), SOT109-1, with 16 leads and 3.9 mm body width. Pin 1 is marked by a notch or dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 (OE1, OE2) | Output Enable (active LOW) | Assert either to place Q0–Q3 in high-Z; independent of clock and register state |
| 3–6 (Q0–Q3) | 3-state registered outputs | Reflect Dn state loaded on prior CP↑ if E1=E2=L; tri-stated if OE1 or OE2=H |
| 7 (CP) | Clock input | Positive-edge triggered; sampling occurs only on LOW-to-HIGH transition |
| 8 (GND) | Ground reference | 0 V return path for all internal logic and output drivers |
| 9, 10 (E1, E2) | Data Enable (active LOW) | Both must be LOW to allow Dn→Qn transfer on next CP↑; otherwise holds previous Qn |
| 11–14 (D0–D3) | Data inputs | Synchronously latched into respective flip-flops when E1=E2=L and CP↑ occurs |
| 15 (MR) | Master Reset (active HIGH) | Asynchronous override: forces all Qn = LOW regardless of CP, E, or OE state |
| 16 (VCC) | Supply voltage | Primary power rail; decoupling capacitor required within 10 mm of pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Gated input enable (E1/E2) | Enables selective hold mode per group - prevents unintended register updates during bus arbitration or debug pauses |
| Independent 3-state output control (OE1/OE2) | Allows partial bus driving (e.g., Q0/Q1 active while Q2/Q3 high-Z) for multi-drop data routing |
| Asynchronous master reset (MR) | Guarantees known initial state at power-up or fault recovery without waiting for clock edge |
| CMOS-level input thresholds | VIH ≥ 3.15 V at VCC = 4.5 V ensures noise margin > 0.8 V in 5 V systems |
| Clamp diode protection | Permits safe interface to 12 V control signals using series resistors - eliminates need for external level shifters |
Applications
| Industrial PLC I/O Expansion | Digital Test Equipment Control |
|---|---|
|
Use Scenario: Latching sensor status from parallel input bus in programmable logic controller backplane. IC Role / Device Role / Timing Role: Quad D-register capturing 4-bit status words on synchronized clock edges; MR initializes all channels at startup. Use Value: Enables deterministic sampling of fast-changing field signals (e.g., encoder quadrature, limit switches) with sub-35 ns timing resolution. |
Use Scenario: Controlling stimulus patterns applied to DUT via 4-bit parallel pattern generator. IC Role / Device Role / Timing Role: Output register holding test vector bits; OE1/OE2 manage bus contention between multiple pattern sources. Use Value: Eliminates external bus transceivers by providing controlled 3-state outputs with <45 ns enable/disable latency. |
| Automotive Body Control Module | Legacy Bus Interface Adapter |
|
Use Scenario: Storing door lock/mirror position commands received over LIN or discrete wiring. IC Role / Device Role / Timing Role: Non-volatile latch (with external backup) holding actuator control bits; MR resets on ignition cycle. Use Value: Operates reliably across -40 °C to +125 °C ambient and withstands load-dump transients via input clamp diodes. |
Use Scenario: Adapting 8-bit ISA bus data to 4-bit microcontroller peripheral interface. IC Role / Device Role / Timing Role: Half-width data register buffering writes from legacy bus; E1/E2 coordinate handshaking with WAIT signal. Use Value: Reduces glue logic count by integrating clocked storage, reset, and tristate control in one SO16 package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT173D,653 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout, timing, and 3-state behavior | Better suited for mixed-logic systems with 5 V TTL peripherals; higher ICC at VCC = 5.5 V | Select when interfacing directly to legacy 74LS/74ALS devices without level translation |
| SN74HC173N | DIP-16 package (PDIP), wider temperature range (-55 °C to +125 °C), same electrical specs | Preferred for prototyping, through-hole assembly, or military-grade thermal cycling | Choose for manual soldering, breadboard validation, or extended cold-environment operation |
Compared with 74HC173D,653, the 74HCT173D,653 lowers input threshold requirements for legacy compatibility but increases supply current; the SN74HC173N trades surface-mount efficiency for mechanical robustness and broader thermal tolerance - selection depends on assembly method, interface voltage family, and environmental stress profile.
Availability
74HC173D,653 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, digital test equipment control, and legacy bus interface adapters requiring stable component supply across extended temperature ranges.
Supply support for 74HC173D,653 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 global semiconductor expert focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer applications.
The 74HC173D,653 belongs to Nexperia's 74HC logic family - designed for low-power, high-noise-immunity digital control in space-constrained, thermally demanding environments.
FAQ
Can 74HC173D,653 operate at 3.3 V supply?
Yes. The 74HC173D,653 is fully specified from 2.0 V to 6.0 V. At VCC = 3.3 V, VIH = 2.1 V min and VOL = 0.26 V max (IO = 6 mA), ensuring clean interfacing with 3.3 V microcontrollers and FPGAs without level shifters.
What happens when both OE1 and OE2 are HIGH?
All four outputs (Q0–Q3) enter high-impedance state simultaneously. Internal flip-flop states remain preserved - no data loss occurs. Outputs return to active drive on next LOW assertion of either OE pin, with tdis ≤ 45 ns at VCC = 6.0 V.
Is master reset (MR) synchronous or asynchronous?
MR is asynchronous: asserting MR HIGH forces Q0–Q3 LOW immediately, independent of CP edge or enable states. Release of MR returns outputs to their last registered value (if E1=E2=L) or holds state (if E1 or E2=H), with tPHL ≤ 38 ns at VCC = 6.0 V.
Does 74HC173D,653 support hot insertion?
No. While input clamp diodes protect against overvoltage, the device lacks hot-swap circuitry (e.g., power-on reset, Ioff protection). Insertion under bias may cause bus contention or latch-up. Always power-cycle the board before replacing.
74HC173D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 95 MHz
- Max Propagation Delay @ V, Max CL:
- 30ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC173D,653 FAQ
1.How can I place an order for 74HC173D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC173D,653 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 74HC173D,653 reliable?
The price and inventory of 74HC173D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC173D,653 is usually 5 days.
3.What payment methods are accepted for 74HC173D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC173D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC173D,653?
74HC173D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC173D,653 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 74HC173D,653?
For technical support, including 74HC173D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC173D,653 requirements.
6.How does Aetrix verify that 74HC173D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC173D,653 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 74HC173D,653 meets industry standards.
7.What is the process for return or replacement of 74HC173D,653?
All 74HC173D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC173D,653, 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 74HC173D,653 part is unused and in its original packaging.
Return procedure for 74HC173D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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