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Texas Instruments SN74LVC2G101PWR
- Part No.:
- SN74LVC2G101PWR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVC2G101PWR.pdf
- Description:
- TWO-CHANNEL 1.1V-TO-3.6V CONFIGU
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC2G101 from Texas Instruments is a dual D-type flip-flop with configurable multi-function gated clock logic, operating from 1.1V to 3.6V supply, featuring over-voltage tolerant inputs up to 5.5V independent of VCC, ±24mA output drive at 3.3V, and 7ns max propagation delay - used in clock division (÷2/÷4) and momentary-to-toggle switch conversion.
For engineers reviewing the SN74LVC2G101 datasheet, SN74LVC2G101 pinout, SN74LVC2G101 application, or SN74LVC2G101 equivalent, key selection criteria include its Schmitt-trigger input hysteresis (ΔVT ≥ 0.3V), Ioff partial-power-down support, 16-pin WQFN/TSSOP package compatibility, and configurable 4-input clock logic enabling AND/OR/NAND/NOR/XOR/XNOR modes per channel.
Technical Context
The SN74LVC2G101 integrates two independent D-type flip-flops, each with separate D, active-low CLR, Q, and four programmable clock inputs (CLKA–CLKD) feeding combinational logic that synthesizes clock enable functions. Its Schmitt-trigger inputs provide noise immunity with hysteresis (ΔVT = 0.3–1.2V depending on VCC), supporting slow or noisy control signals without external conditioning.
Each channel's clock logic maps A/B/C/D inputs to an internal Y signal via user-configurable truth tables - enabling 2-input gates (e.g., AND, OR) or 1-input inversion/non-inversion - while maintaining synchronous edge-triggered D-flip-flop behavior on the resulting Y clock. The device supports partial power-down (Ioff) with ≤±10µA leakage when VCC = 0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.1V to 3.6V - enables direct interface with 1.2V, 1.8V, 2.5V, and 3.3V logic domains without level shifters. |
| Input over-voltage tolerance | Up to 5.5V independent of VCC - allows safe connection to 5V signals in mixed-voltage systems. |
| Max propagation delay | 7ns at 3.3V - supports clock frequencies up to 160MHz for reliable high-speed timing applications. |
| Output drive strength | ±24mA at 3.3V - drives moderate capacitive loads (≤50pF) and multiple standard CMOS inputs directly. |
| Input hysteresis (ΔVT) | 0.3V to 1.2V (VCC-dependent) - rejects noise up to ~1.2Vpp on clock/data lines without external filtering. |
| Ioff current | ±10µA at VCC = 0V - prevents back-drive damage during hot-insertion or partial system power-down. |
| Operating temperature | –40°C to +125°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
SN74LVC2G101 is available in two 16-pin packages: BQB (WQFN, 3.5mm × 2.5mm body) and PW (TSSOP, 5mm × 4.4mm body). Both share identical pin numbering and function mapping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLR1, CLR2 | Asynchronous active-low clear | Resets corresponding Q output to low regardless of clock state; essential for deterministic power-up initialization. |
| CLKA1–CLKD1, CLKA2–CLKD2 | Configurable clock inputs (4 per channel) | Feed combinational logic block to generate internal clock (Y); enables flexible gating (e.g., CLKA1 AND CLKB1) before flip-flop triggering. |
| D1, D2 | Data inputs | Sampled on rising edge of internal Y clock; determines next-state value for Q1/Q2 outputs. |
| Q1, Q2 | Non-inverted outputs | Provide registered, noise-immune D-flip-flop outputs; compatible with standard LVC logic thresholds. |
| VCC, GND | Power and ground | Single-supply operation; thermal pad in BQB package may be connected to GND for improved thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable multi-function clock logic | Per-channel 4-input combinational logic enables AND/OR/NAND/NOR/XOR/XNOR or 1-input inversion - eliminates need for external gate ICs in clock conditioning paths. |
| Schmitt-trigger inputs | Hysteresis (ΔVT) ≥ 0.3V ensures robust operation with slow-rising or noisy control signals, reducing susceptibility to false triggering. |
| Ioff partial-power-down protection | Blocks current flow between powered/unpowered sections when VCC = 0V, preventing back-drive damage in modular or hot-swap systems. |
| Over-voltage tolerant inputs | Accepts 5.5V inputs while powered from 1.1V–3.6V supplies - simplifies interfacing with legacy 5V peripherals or sensors. |
| High-output drive (±24mA @ 3.3V) | Drives ≥10 LVC loads or 50pF traces directly, reducing need for buffer stages in space-constrained designs. |
Applications
| Industrial Control Logic | Low-Power Sensor Interface |
|---|---|
Use Scenario: Converting mechanical push-button inputs into clean toggle outputs for PLC I/O modules. IC Role / Device Role / Timing Role: Dual D-flip-flop acts as debounced toggle latch; configurable clock logic implements edge detection using button signal AND system clock. Use Value: Eliminates external RC debounce networks and discrete logic gates, reducing BOM count and PCB area by >30%. |
Use Scenario: Synchronizing asynchronous fault alerts (e.g., over-temperature, over-current) from multiple sensors into a single latched interrupt line. IC Role / Device Role / Timing Role: Each channel captures rising edges of independent fault signals using Schmitt-trigger inputs and gated clock logic. Use Value: Enables reliable fault capture at 1.8V supply with noise margins >0.8Vpp, avoiding missed interrupts in electrically noisy motor-drive environments. |
| Programmable Clock Divider | Configurable Logic Glue |
Use Scenario: Generating divided clocks (÷2 or ÷4) from a master oscillator in FPGA configuration circuits or MCU peripheral timing. IC Role / Device Role / Timing Role: First flip-flop divides input clock by 2; second stage uses Q1 as clock input to achieve ÷4 - configured via CLKA/CLKB wiring. Use Value: Achieves precise integer clock division without PLLs or programmable oscillators, minimizing jitter (<1ns skew between channels). |
Use Scenario: Adapting mismatched interface protocols between microcontrollers and legacy peripherals (e.g., SPI-to-parallel conversion logic). IC Role / Device Role / Timing Role: Configurable clock inputs implement protocol-specific enable conditions (e.g., CS AND SCLK), while D/Q registers hold data bits. Use Value: Replaces 3–4 discrete logic ICs (AND gate + DFF) with one 3.5mm × 2.5mm WQFN, cutting interconnect delay and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual configurable D-flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G74DCUR | Standard dual D-flip-flop with fixed positive-edge clock; no configurable clock logic or Schmitt inputs. | Lacks clock gating flexibility and noise immunity - requires external gates for AND-gated clocking and RC filtering for noisy inputs. | Choose when only basic edge-triggered storage is needed and board space permits additional discrete logic. |
| SN74LVC1G97YZPR | Single configurable logic gate (6-input) with Schmitt inputs, but no flip-flop functionality. | Provides combinational logic only - cannot store state or divide clocks; must pair with separate DFF for sequential operation. | Use when clock conditioning is required without storage, or when adding a second IC is acceptable for modularity. |
Compared with SN74LVC2G74DCUR and SN74LVC1G97YZPR, the SN74LVC2G101 uniquely integrates both configurable clock logic and dual D-flip-flop storage in one package - reducing component count, inter-stage propagation delay, and layout area while enabling deterministic edge-triggered behavior on noise-prone signals.
Availability
SN74LVC2G101 is available at Aetrix Electronics and suitable for industrial control logic, low-power sensor interfaces, programmable clock division, and configurable logic glue applications requiring stable component supply across extended temperature ranges.
Supply support for SN74LVC2G101 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of experience in high-reliability industrial and automotive-grade components.
The SN74LVC2G101 belongs to TI's LVC logic family, designed for low-voltage, high-speed, mixed-signal interface applications where power efficiency, noise immunity, and configurability are critical in space-constrained systems.
FAQ
What is the maximum clock frequency supported by SN74LVC2G101?
The SN74LVC2G101 supports up to 160MHz clock frequency at 3.3V ±0.3V supply, as specified in the timing characteristics table. At lower voltages, maximum frequency decreases: 150MHz at 2.5V, 70MHz at 1.8V, and 40MHz at 1.5V. These values assume proper load capacitance (≤50pF) and signal integrity.
Does SN74LVC2G101 require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs on SN74LVC2G101 must be terminated to VCC or GND. While Schmitt-trigger inputs tolerate slow edges, floating inputs cause increased ICC current and potential metastability. A 10kΩ resistor is recommended for reliable default biasing without excessive power draw.
Can SN74LVC2G101 operate with a 5V input signal while powered from 1.8V?
Yes - SN74LVC2G101 inputs are over-voltage tolerant up to 5.5V independent of VCC, so a 5V signal applied to CLKA1 while VCC = 1.8V is fully supported and does not require external level shifting or clamping diodes.
How does the configurable clock logic in SN74LVC2G101 work?
The SN74LVC2G101 uses four clock inputs (CLKA–CLKD) per channel to feed an internal combinational logic block that generates a single effective clock (Y). By wiring specific inputs high/low or to signals, users configure Y as AND, OR, NAND, NOR, XOR, XNOR, or inverted/non-inverted - which then triggers the D-flip-flop on its rising edge.
Is SN74LVC2G101 suitable for automotive applications?
Yes - SN74LVC2G101 is rated for –40°C to +125°C operation and meets JESD78 latch-up performance (>100mA), making it suitable for under-hood and infotainment subsystems. It is not AEC-Q200 qualified by default, so system-level validation is required for safety-critical automotive use.
SN74LVC2G101PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 160 MHz
- Max Propagation Delay @ V, Max CL:
- 7ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.1V ~ 3.6V
- Current - Quiescent (Iq):
- 40 µA
- Input Capacitance:
- 4.9 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74LVC2G101PWR FAQ
1.How can I place an order for SN74LVC2G101PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G101PWR 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 SN74LVC2G101PWR reliable?
The price and inventory of SN74LVC2G101PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G101PWR is usually 5 days.
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Once your SN74LVC2G101PWR 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 SN74LVC2G101PWR?
For technical support, including SN74LVC2G101PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G101PWR requirements.
6.How does Aetrix verify that SN74LVC2G101PWR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G101PWR 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 SN74LVC2G101PWR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G101PWR?
All SN74LVC2G101PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G101PWR, 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 SN74LVC2G101PWR part is unused and in its original packaging.
Return procedure for SN74LVC2G101PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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