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NXP Semiconductors 74HC175DB,112
- Part No.:
- 74HC175DB,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HC175DB,112.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,300
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Product details
Overview
74HC175DB,112 from NXP Semiconductors is a quad positive-edge-triggered D-type flip-flop with asynchronous master reset (MR), complementary Q/Q̅ outputs, and individual data inputs (D0–D3). It operates across −40 °C to +125 °C, supports 2.0–6.0 V supply, and delivers 35 MHz max clock frequency at VCC = 6.0 V. It is used in synchronous logic control, data latching, and register file design in industrial PLCs and digital instrumentation.
For engineers reviewing the 74HC175DB,112 datasheet, 74HC175DB,112 pinout, 74HC175DB,112 application, or 74HC175DB,112 equivalent, this page provides verified functional behavior, SSOP16 package details, timing constraints (tsu = 17 ns, th = 5 ns @ VCC = 6.0 V), ESD robustness (>2000 V HBM), and JEDEC 7A compliance - all critical for reliable edge-triggered state storage in noise-prone environments.
Technical Context
The 74HC175DB,112 implements four independent CMOS D-type latches sharing a common LOW-to-HIGH clock edge trigger and global active-low asynchronous reset. Each flip-flop stores the D-input value meeting setup/hold timing relative to the CP transition and drives both true (Qn) and complement (Q̅n) outputs simultaneously.
Input clamp diodes enable safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC standard no. 7A and is specified for operation over the full industrial temperature range (−40 °C to +125 °C) in the SSOP16 package (SOT338-1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC high-speed CMOS - compatible with TTL input thresholds only via external level-shifting; not TTL-input-compatible like 74HCT variants. |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5 V systems without voltage translation. |
| Max Clock Frequency | 35 MHz at VCC = 6.0 V (CL = 50 pF) - supports medium-speed synchronous control in data acquisition and bus interface logic. |
| Propagation Delay (CP→Q) | 16 ns typical at VCC = 6.0 V - ensures predictable timing margin in cascaded register chains. |
| Set-up / Hold Time | 17 ns / 5 ns at VCC = 6.0 V - defines minimum data stability window before and after clock edge for reliable capture. |
| ESD Protection | HBM > 2000 V, MM > 200 V - reduces risk of damage during board handling and assembly in non-ESD-controlled environments. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
74HC175DB,112 is housed in a plastic shrink small outline package (SSOP16) per SOT338-1, with 16 leads, 5.3 mm body width, and 0.65 mm lead pitch. Pin numbering follows standard SSOP convention (pin 1 at top-left corner, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MR (Master Reset) | Asynchronous active-LOW reset controlling all four flip-flops; overrides clock and data to force Qn = LOW, Q̅n = HIGH. |
| 2, 7, 10, 15 | Q0–Q3 | True outputs of D0–D3 latches; driven HIGH/LOW based on stored data; fan-out up to 10 LS-TTL loads. |
| 3, 6, 11, 14 | Q̅0–Q̅3 | Complementary outputs - provides inverted latch state without external inverters, reducing component count in feedback paths. |
| 4, 5, 12, 13 | D0–D3 | Independent data inputs; each sampled on rising CP edge if setup/hold times met; clamped for overvoltage tolerance. |
| 8 | GND | Ground reference (0 V); must be low-impedance connection to minimize switching noise coupling into logic states. |
| 9 | CP | Common clock input; rising-edge sensitive; internal Schmitt-trigger input ensures noise immunity on slow-rising edges. |
| 16 | VCC | Positive supply rail; decoupling capacitor (100 nF ceramic) required within 10 mm of pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Quad D-type flip-flops | Four independent edge-triggered storage elements in one IC - reduces PCB area vs discrete solutions and ensures matched propagation delays. |
| Asynchronous master reset | Single-pin global reset (MR) forces all outputs to known LOW state regardless of clock or data - essential for power-on initialization and fault recovery. |
| CMOS input levels | VIH = 3.15 V min @ VCC = 4.5 V - ensures compatibility with 3.3 V microcontroller GPIOs while maintaining noise margin in mixed-voltage systems. |
| Input clamp diodes | Enables safe interface to signals up to VCC + 0.5 V using series current-limiting resistors - eliminates need for external protection in sensor interface circuits. |
| JEDEC 7A compliance | Guarantees interoperability with legacy 74-series logic families and simplifies replacement in existing designs without signal integrity revalidation. |
Applications
| Industrial Control Logic | Digital Instrumentation |
|---|---|
|
Use Scenario: Latching sensor status bits (e.g., limit switches, encoder zero pulses) in programmable logic controllers before scan-cycle processing. IC Role / Device Role / Timing Role: Quad D-flip-flop acting as synchronized input register - captures asynchronous field signals on system clock edge to prevent metastability. Use Value: Eliminates need for external synchronizers; MR pin enables deterministic reset during controller reboot sequences. |
Use Scenario: Storing calibrated offset/gain coefficients in handheld multimeters or oscilloscope front-end ADC control registers. IC Role / Device Role / Timing Role: Data register holding configuration words written by MCU SPI/I²C interface; Q/Q̅ outputs drive DAC control lines or mux select logic. Use Value: Complementary outputs allow direct driving of differential analog switches without added inverters, saving board space and propagation delay. |
| Bus Interface Buffering | State Machine Sequencing |
|
Use Scenario: Isolating and synchronizing address/data strobes between legacy parallel buses (e.g., ISA, PC/104) and modern microcontrollers. IC Role / Device Role / Timing Role: Edge-triggered latch capturing bus transactions on rising clock edge; MR resets latch state during bus arbitration failures. Use Value: Propagation delay ≤30 ns @ VCC = 6.0 V meets tight timing budgets in 10–20 MHz parallel bus interfaces. |
Use Scenario: Implementing 4-bit counter or sequence controller in LED display drivers or stepper motor sequencers. IC Role / Device Role / Timing Role: Flip-flop array storing current state bits; Q outputs feed combinational logic generating next-state and output enable signals. Use Value: Matched internal delays across all four channels ensure glitch-free state transitions critical for precise motor phase timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC175D,653 | Same logic function and timing, but in SO16 (SOT109-1) package - 3.9 mm body width, 1.27 mm pitch. | Preferred where board layout uses standard SOIC footprints or requires higher thermal mass for extended high-temp operation. | Select 74HC175D,653 if PCB land pattern is fixed for SO16; verify trace inductance and decoupling adequacy for same-speed operation. |
| SN74HC175N | Dual-in-line package (PDIP-16); wider 600-mil body; no surface-mount capability; lower max fmax (25 MHz @ VCC = 6.0 V). | Suitable for prototyping, educational kits, or legacy through-hole assemblies where reflow soldering is unavailable. | Choose SN74HC175N only for hand-soldered evaluation; avoid in production due to larger footprint and inferior high-frequency performance. |
Compared with 74HC175DB,112, the SO16 variant offers better thermal dissipation but requires more PCB area, while the PDIP version sacrifices speed and density for manual assembly flexibility - making 74HC175DB,112 optimal for compact, high-reliability surface-mount industrial designs.
Availability
74HC175DB,112 is available at Aetrix Electronics and suitable for industrial control logic, digital instrumentation, bus interface buffering, and state machine sequencing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74HC175DB,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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with core expertise in logic, RF, and embedded processing.
The 74HC175DB,112 belongs to NXP's legacy 74HC logic family - designed for robust, low-power, pin-compatible replacements of standard TTL logic in industrial and consumer systems operating from 2 V to 6 V.
FAQ
What is the maximum clock frequency supported by the 74HC175DB,112?
The 74HC175DB,112 supports a maximum clock frequency of 35 MHz at VCC = 6.0 V with CL = 50 pF load. At 4.5 V, fmax drops to 30 MHz, and at 2.0 V it is 6 MHz. These values are measured under defined test conditions per Figure 7 in the NXP datasheet and assume proper decoupling and signal integrity.
Does the 74HC175DB,112 support TTL-level inputs?
No, the 74HC175DB,112 does not support TTL-level inputs natively. Its VIH threshold is 3.15 V min at VCC = 4.5 V, which exceeds standard TTL's 2.0 V HIGH threshold. For TTL compatibility, use the pin-compatible 74HCT175DB variant instead, which specifies VIH = 2.0 V min.
How does the master reset (MR) pin behave in the 74HC175DB,112?
The MR pin on the 74HC175DB,112 is an asynchronous active-LOW input that immediately forces all Q outputs LOW and all Q̅ outputs HIGH, overriding any clock or data activity. It remains effective regardless of CP state and requires no clock edge to take effect - critical for fail-safe system initialization.
What package type is used for the 74HC175DB,112?
The 74HC175DB,112 uses the SSOP16 package (SOT338-1): a 16-lead plastic shrink small outline package with 5.3 mm body width and 0.65 mm lead pitch. This surface-mount package enables high-density PCB layouts and is RoHS-compliant.
Can the 74HC175DB,112 operate at 3.3 V supply?
Yes, the 74HC175DB,112 is fully specified for operation at 3.3 V (within its 2.0–6.0 V range). At VCC = 3.3 V, typical propagation delay is ~25 ns and fmax is ~22 MHz (interpolated from 2.0 V and 4.5 V data), making it suitable for mixed-voltage 3.3 V/5 V systems.
74HC175DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 89 MHz
- Max Propagation Delay @ V, Max CL:
- 30ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74HC175DB,112 FAQ
1.How can I place an order for 74HC175DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC175DB,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 74HC175DB,112 reliable?
The price and inventory of 74HC175DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC175DB,112 is usually 5 days.
3.What payment methods are accepted for 74HC175DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC175DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC175DB,112?
74HC175DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC175DB,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 74HC175DB,112?
For technical support, including 74HC175DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC175DB,112 requirements.
6.How does Aetrix verify that 74HC175DB,112 is sourced from the original manufacturer or authorized distributors?
All 74HC175DB,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 74HC175DB,112 meets industry standards.
7.What is the process for return or replacement of 74HC175DB,112?
All 74HC175DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC175DB,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 74HC175DB,112 part is unused and in its original packaging.
Return procedure for 74HC175DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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