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NXP Semiconductors 74LV174DB,112
- Part No.:
- 74LV174DB,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LV174DB,112.pdf
- Description:
- IC FF D-TYPE SNGL 6BIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,646
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Product details
Overview
74LV174DB,112 from NXP Semiconductors (formerly Philips) is a low-voltage CMOS hex D-type flip-flop with asynchronous master reset and positive-edge clock triggering. It provides six independent storage elements operating from 1.0 V to 5.5 V supply, delivers 77 MHz maximum clock frequency at VCC = 3.3 V, features 16 ns typical CP-to-Q propagation delay, and supports TTL-level inputs at 2.7–3.6 V - used in synchronous logic control, data latching, and register staging in industrial microcontroller interfaces.
For engineers reviewing the 74LV174DB,112 datasheet, 74LV174DB,112 pinout, 74LV174DB,112 application, or 74LV174DB,112 equivalent, key selection criteria include its wide VCC range (1.0–5.5 V), guaranteed operation down to 1.2 V, asynchronous MR input behavior, edge-triggered timing margins, and compatibility with legacy 74HC/HCT174 layouts while enabling lower-power operation.
Technical Context
The 74LV174DB,112 implements six identical edge-triggered D flip-flops sharing a common clock (CP) and active-low master reset (MR). Each flip-flop transfers the state of its D input to Q on the LOW-to-HIGH transition of CP, provided setup and hold times are met - with tsu = 13 ns and th = 5 ns at VCC = 3.3 V. The MR signal forces all Q outputs LOW independently of CP or D states.
It uses Si-gate CMOS technology optimized for low-voltage operation (1.0–3.6 V), maintains pin and functional compatibility with 74HC/HCT174, and exhibits standard output drive capability (±25 mA per output at VCC = 3.0 V). Its dynamic power dissipation is characterized by CPD = 17 pF per flip-flop at VCC = 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.0 V to 5.5 V - enables direct interface with 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| fmax | 77 MHz at VCC = 3.3 V - supports high-speed register staging in digital control loops |
| tPHL/tPLH (CP→Q) | 16 ns typical at VCC = 3.3 V, CL = 15 pF - defines minimum clock period for reliable state capture |
| tsu (D→CP) | 13 ns min at VCC = 3.0–3.6 V - constrains maximum data path delay before clock edge |
| th (D→CP) | 5 ns min at VCC = 3.0–3.6 V - limits minimum data hold time after clock edge |
| IO (output sink/source) | ±25 mA per output at VCC = 3.0 V - drives standard TTL loads and small capacitive buses |
| CI | 3.5 pF - minimizes loading on upstream drivers and reduces switching noise coupling |
Pinout & Package
74LV174DB,112 is housed in a 16-pin plastic SSOP (Shrink Small Outline Package), Type II, body width 5.3 mm, per package drawing SOT338-1. Pin pitch is 0.65 mm, and the package is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MR | Asynchronous master reset - active LOW; overrides clock and data to force all Q outputs LOW immediately |
| 2,5,7,10,12,15 | Q0–Q5 | True (non-inverted) flip-flop outputs - provide registered data state on each clock edge |
| 3,4,6,11,13,14 | D0–D5 | Data inputs - sampled one setup time before CP rising edge and latched on edge |
| 8 | GND | Ground reference - must be connected to system 0 V plane with low-impedance path |
| 9 | CP | Positive-edge clock input - triggers simultaneous latch of all six D inputs on LOW-to-HIGH transition |
| 16 | VCC | Positive supply - powers internal logic and output buffers; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.0–5.5 V) | Supports mixed-voltage system integration without level shifters in 1.2 V–5 V domains |
| Pin/function compatibility with 74HC/HCT174 | Enables drop-in replacement in existing designs while reducing supply voltage and dynamic power |
| Asynchronous MR with immediate effect | Allows deterministic system-wide reset without waiting for next clock edge - critical for fault recovery |
| Low ground bounce (VOLP = 0.8 V typ) | Reduces noise coupling into sensitive analog sections when multiple outputs switch simultaneously |
| TTL-input compatibility at 2.7–3.6 V | Permits direct interfacing with legacy 3.3 V TTL outputs without external translators |
Applications
| Industrial PLC I/O Staging | Microcontroller Peripheral Interface |
|---|---|
Use Scenario: Latching sensor status bits from parallel input modules before scanning cycle execution. IC Role / Device Role / Timing Role: Hex D-type flip-flop providing synchronized, glitch-free registration of 6-bit parallel status under CPU-controlled clock. Use Value: Ensures deterministic sampling aligned to system clock edge, eliminating metastability risk during fast input transitions. | Use Scenario: Buffering GPIO expansion signals between an ARM Cortex-M3 and external 3.3 V peripherals. IC Role / Device Role / Timing Role: Level-tolerant register staging device accepting 3.3 V TTL inputs and driving 3.3 V CMOS loads with controlled edge rates. Use Value: Eliminates need for discrete level translators while maintaining timing integrity across voltage-domain boundaries. |
| Digital Test Equipment Pattern Storage | Legacy Bus Interface Logic |
Use Scenario: Holding stimulus patterns for automated test vectors applied to DUT pins via parallel bus. IC Role / Device Role / Timing Role: Edge-triggered storage element capturing pattern words on system clock edge for precise timing alignment. Use Value: Provides predictable, jitter-free output timing essential for sub-25 ns test pulse generation. | Use Scenario: Interfacing 5 V ISA bus address/data lines to modern low-voltage FPGA-based controllers. IC Role / Device Role / Timing Role: Voltage-flexible register that accepts 5 V inputs (via TTL-compatible thresholds) and outputs 3.3 V logic levels. Use Value: Enables backward compatibility with legacy 5 V bus standards while powering from 3.3 V supply. |
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 |
|---|---|---|---|
| 74LV174PW,118 | TSSOP-16 package (4.4 mm width); identical electrical specs and pinout | Higher board density; requires finer-pitch reflow profile | Select for space-constrained PCBs where thermal performance permits TSSOP mounting |
| SN74LV174AD | TI-manufactured part; same logic function, VCC range, and AC specs; minor differences in VOH/VOL limits at VCC = 1.2 V | Validated for automotive AEC-Q100 Grade 1 (–40°C to +125°C) per TI documentation | Select when automotive qualification or alternate supply chain diversity is required |
Compared with 74LV174DB,112, the 74LV174PW,118 offers identical functionality in a smaller footprint but demands tighter assembly control, while the SN74LV174AD adds automotive qualification and sourcing flexibility without altering core timing or voltage behavior.
Availability
74LV174DB,112 is available at Aetrix Electronics and suitable for industrial automation, embedded control, and legacy bus interface applications requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.
Supply support for 74LV174DB,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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The 74LV logic family was designed for low-voltage, high-noise-immunity digital systems operating across 1.0–5.5 V, targeting cost-sensitive industrial controls and mixed-signal interface applications where compatibility with legacy 74HC logic is essential.
FAQ
What is the minimum supply voltage at which 74LV174DB,112 guarantees correct operation?
The 74LV174DB,112 is guaranteed to function correctly down to VCC = 1.2 V for DC characteristics, with full functionality including setup/hold timing and output drive specified across –40°C to +125°C. While the device may operate at 1.0 V, only DC parameters are validated below 1.2 V per the datasheet's recommended operating conditions table.
Does 74LV174DB,112 support true TTL input levels across its entire supply range?
No - 74LV174DB,112 accepts TTL input levels only when VCC is between 2.7 V and 3.6 V, as explicitly stated in the FEATURES section. Outside this range, input thresholds scale with VCC (VIH = 0.7×VCC, VIL = 0.3×VCC), so direct TTL interfacing is not supported at 1.2 V, 1.8 V, or 5 V supply.
Can the master reset (MR) input of 74LV174DB,112 be used as a synchronous clear?
No - the MR input of 74LV174DB,112 is asynchronous and active LOW. It forces all Q outputs LOW immediately upon assertion, regardless of CP state or timing. There is no provision for synchronous reset; the device lacks a dedicated synchronous clear input or enable-controlled reset path.
What is the maximum capacitive load 74LV174DB,112 can drive while maintaining specified propagation delay?
The 74LV174DB,112's AC characteristics - including tPHL/tPLH = 16 ns typical - are specified with CL = 15 pF. Driving loads beyond 15 pF increases propagation delay nonlinearly; for example, at CL = 50 pF, tPHL/tPLH rises to 25 ns (min) at VCC = 3.0–3.6 V. Layout parasitics must be included in total CL budget.
Is 74LV174DB,112 pin-compatible with the 74HC174 and 74HCT174?
Yes - the 74LV174DB,112 is explicitly described as "pin and function compatible with the 74HC/HCT174" in the DESCRIPTION section. Pin numbering, signal names (MR, CP, D0–D5, Q0–Q5, VCC, GND), and logical behavior match identically, enabling direct substitution in existing PCB layouts designed for those families.
74LV174DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 21ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 1V ~ 5.5V
- Current - Quiescent (Iq):
- 160 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74LV174DB,112 FAQ
1.How can I place an order for 74LV174DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV174DB,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 74LV174DB,112 reliable?
The price and inventory of 74LV174DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV174DB,112 is usually 5 days.
3.What payment methods are accepted for 74LV174DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV174DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV174DB,112?
74LV174DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV174DB,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 74LV174DB,112?
For technical support, including 74LV174DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV174DB,112 requirements.
6.How does Aetrix verify that 74LV174DB,112 is sourced from the original manufacturer or authorized distributors?
All 74LV174DB,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 74LV174DB,112 meets industry standards.
7.What is the process for return or replacement of 74LV174DB,112?
All 74LV174DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV174DB,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 74LV174DB,112 part is unused and in its original packaging.
Return procedure for 74LV174DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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