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NXP Semiconductors 74LV273N,112
- Part No.:
- 74LV273N,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
74LV273N,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
74LV273N,112 from Philips Semiconductors is an octal D-type positive-edge-triggered flip-flop with synchronous common clock (CP) and active-low master reset (MR), operating from 1.0 V to 5.5 V supply, delivering 110 MHz max clock frequency at VCC = 3.3 V, 12–13 ns propagation delay (CP→Qn), and standard-output drive capability - used for parallel data latching in low-voltage microprocessor bus interfaces and memory address registration.
For engineers reviewing the 74LV273N,112 datasheet, 74LV273N,112 pinout, 74LV273N,112 application, or 74LV273N,112 equivalent, key selection criteria include its wide VCC range (1.0–5.5 V), TTL-input compatibility at 2.7–3.6 V, guaranteed operation down to 1.2 V, low ground bounce (0.8 V typical @ 3.3 V), and pin/function compatibility with 74HC/HCT273 for legacy system upgrades.
Technical Context
The 74LV273N,112 implements eight independent edge-triggered D flip-flops sharing a single LOW-to-HIGH clock transition (CP) and a common active-LOW asynchronous master reset (MR). All Q outputs are forced LOW regardless of CP or D inputs when MR is asserted.
Its Si-gate CMOS architecture supports mixed-voltage interfacing: inputs accept TTL levels at VCC = 2.7–3.6 V, while output VOH/VOL meet standard logic thresholds across 1.2–5.5 V, enabling direct connection to 3.3 V or 5 V systems without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.0 V to 5.5 V - enables single-supply operation in battery-powered, mixed-voltage, and legacy 5 V systems |
| Max Clock Frequency | 110 MHz @ VCC = 3.3 V - supports high-speed data capture in microprocessor address/data latching |
| Propagation Delay (CP→Qn) | 12 ns (tPHL), 13 ns (tPLH) @ CL = 15 pF, VCC = 3.3 V - ensures tight timing margins in synchronous control paths |
| Input Voltage Compatibility | TTL-level inputs accepted at VCC = 2.7–3.6 V - allows direct interface with 5 V TTL outputs without external translators |
| Output Drive | Standard outputs: ±25 mA sink/source @ VCC = 3.0 V - drives multiple CMOS/TTL loads without buffering |
| Set-up Time (Dn→CP) | 13 ns @ VCC = 3.0–3.6 V - defines minimum data stability window before clock edge for reliable sampling |
| Hold Time (Dn→CP) | 5 ns @ VCC = 3.0–3.6 V - constrains maximum allowable data change after clock edge to prevent metastability |
Pinout & Package
74LV273N,112 is supplied in a 20-pin plastic dual in-line package (DIP), SOT146-1 footprint, with 300-mil body width and through-hole mounting. Pin 10 is GND, pin 20 is VCC, and all pins conform to JEDEC MS-001 standard dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MR | Active-LOW asynchronous master reset - forces all Q outputs LOW independently of clock or data |
| 2,5,6,9,12,15,16,19 | Q0–Q7 | True (non-inverted) flip-flop outputs - provide registered parallel data for bus hold or address staging |
| 3,4,7,8,13,14,17,18 | D0–D7 | Data inputs - sampled on LOW-to-HIGH CP transition; require stable setup/hold timing |
| 10 | GND | Ground reference - must be low-impedance return path for all internal switching currents |
| 11 | CP | Positive-edge-triggered clock input - synchronizes loading of all eight D inputs to corresponding Q outputs |
| 20 | VCC | Positive supply - powers internal logic and output drivers; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.0–5.5 V) | Supports direct integration into 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V systems without voltage translation |
| TTL-input compatibility | Accepts standard 5 V TTL logic levels at VCC = 2.7–3.6 V - eliminates need for external level-shifting circuitry |
| Low ground bounce (VOLP) | 0.8 V typical @ VCC = 3.3 V - reduces noise coupling into adjacent signal lines and power rails |
| Common clock & reset | Single CP and MR control all eight flip-flops - simplifies timing control and reduces PCB routing complexity |
| Pin/function compatibility with 74HC/HCT273 | Enables drop-in replacement in existing designs using higher-voltage families - no layout changes required |
Applications
| Microprocessor Address Latching | Memory Interface Buffering |
|---|---|
Use Scenario: Holding 8-bit address bus signals during CPU read/write cycles to stabilize memory access timing. IC Role / Device Role / Timing Role: Edge-triggered latch capturing address bits on rising CP edge, with MR enabling full bus reset. Use Value: Eliminates address glitches during bus contention and ensures deterministic setup/hold timing for SRAM/ROM access. |
Use Scenario: Isolating and regenerating data lines between a microcontroller and parallel EEPROM or Flash memory. IC Role / Device Role / Timing Role: Registered buffer providing clean, synchronized data transfer with controlled output slew and drive strength. Use Value: Prevents data corruption caused by capacitive loading and signal skew across multi-load memory buses. |
| Industrial I/O Expansion | Legacy Bus Interface Adapter |
Use Scenario: Expanding GPIO count on PLC controller boards where precise timing and noise immunity are critical. IC Role / Device Role / Timing Role: Parallel input register capturing sensor status or switch states synchronized to system clock domain. Use Value: Provides deterministic sampling window and robust noise rejection via Schmitt-trigger-compatible input thresholds. |
Use Scenario: Adapting modern low-voltage logic to legacy 5 V backplane systems requiring TTL-compatible inputs. IC Role / Device Role / Timing Role: Level-tolerant interface device accepting 5 V TTL inputs while operating from 3.3 V supply and driving 3.3 V loads. Use Value: Enables seamless integration without redesigning power distribution or adding discrete level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC273PW,118 | Higher VCC min (2.0 V), slower max fmax (60 MHz @ 4.5 V), higher ICC (160 µA vs. 20 µA @ 5.5 V) | Not suitable for sub-2.0 V operation; less efficient in battery-powered systems | Select when only 5 V operation is needed and lower quiescent current is not critical |
| SN74LV273APWR | Same LV family specs, identical pinout, but TI-marked; slightly tighter AC limits (tPLH/tPHL ≤12 ns @ 3.3 V) | No functional difference; qualified for automotive AEC-Q100 Grade 2 (–40°C to +105°C) | Prefer for automotive-grade designs requiring extended temperature validation and TI supply chain assurance |
Compared with 74HC273PW,118 and SN74LV273APWR, the 74LV273N,112 uniquely supports 1.0 V operation and delivers lowest ICC in the LV family - making it optimal for ultra-low-power embedded controllers where supply headroom and standby current are constrained.
Availability
74LV273N,112 is available at Aetrix Electronics and suitable for microprocessor address latching, memory interface buffering, industrial I/O expansion, and legacy bus interface adapter applications requiring stable component supply across industrial temperature ranges (–40°C to +125°C).
Supply support for 74LV273N,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
Philips Semiconductors (now NXP Semiconductors) is a global semiconductor innovator founded in the Netherlands, specializing in logic, analog, RF, and automotive ICs with emphasis on reliability and industrial-grade performance.
The 74LV273N,112 belongs to the LV (Low-Voltage) logic family, designed specifically for mixed-signal systems requiring interoperability between 1.2 V–5.5 V domains while maintaining TTL input compatibility and low dynamic power consumption.
FAQ
What is the minimum supply voltage at which 74LV273N,112 guarantees functional operation?
The 74LV273N,112 guarantees functional operation down to VCC = 1.0 V when inputs are driven to GND or VCC, and DC characteristics are fully specified from VCC = 1.2 V to 5.5 V. This makes the 74LV273N,112 suitable for battery-backed or energy-harvesting systems where supply voltage may dip below 1.2 V during brownout conditions while retaining basic logic functionality.
Does 74LV273N,112 support TTL-level inputs when powered from 3.3 V?
Yes - the 74LV273N,112 explicitly accepts TTL input levels when VCC is between 2.7 V and 3.6 V, meaning a 5 V TTL HIGH (≥2.0 V) is recognized as valid VIH and a 5 V TTL LOW (≤0.8 V) as valid VIL. This allows direct connection to legacy 5 V microcontrollers or peripherals without level-shifting components, preserving signal integrity and reducing BOM cost.
What is the function of pin 1 (MR) on the 74LV273N,112, and how does it interact with the clock?
Pin 1 is the Master Reset (MR) input, active-LOW and asynchronous - asserting MR LOW forces all Q0–Q7 outputs LOW immediately, regardless of CP state or D input values. The 74LV273N,112 does not require CP to be active for MR to take effect, and MR overrides all clock-triggered behavior, making it ideal for system-wide initialization or fault recovery sequences.
Is 74LV273N,112 pin-compatible with the 74HC273 family?
Yes - the 74LV273N,112 is pin and function compatible with the 74HC/HCT273 devices, sharing identical pin configuration, logic behavior, and package outline (SOT146-1 for DIP). This allows direct substitution in existing 74HC273-based designs when upgrading to lower supply voltages or reduced power consumption, with no PCB or firmware changes required.
What thermal derating applies to 74LV273N,112 in its plastic DIP package?
In its plastic DIP (SOT146-1) package, the 74LV273N,112 has a maximum power dissipation of 750 mW at ambient temperatures up to +70°C; above +70°C, power must be linearly derated at 12 mW/K. This derating ensures safe junction temperature operation across the full –40°C to +125°C industrial range, especially under sustained high-frequency switching or heavy capacitive loading.
74LV273N,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 16ns @ 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:
- Through Hole
- Supplier Device Package:
- 20-DIP
74LV273N,112 FAQ
1.How can I place an order for 74LV273N,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV273N,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 74LV273N,112 reliable?
The price and inventory of 74LV273N,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV273N,112 is usually 5 days.
3.What payment methods are accepted for 74LV273N,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV273N,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV273N,112?
74LV273N,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV273N,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 74LV273N,112?
For technical support, including 74LV273N,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV273N,112 requirements.
6.How does Aetrix verify that 74LV273N,112 is sourced from the original manufacturer or authorized distributors?
All 74LV273N,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 74LV273N,112 meets industry standards.
7.What is the process for return or replacement of 74LV273N,112?
All 74LV273N,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV273N,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 74LV273N,112 part is unused and in its original packaging.
Return procedure for 74LV273N,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV273N,112 Tags
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