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Diodes Incorporated 74LVC1G07SE-7
- Part No.:
- 74LVC1G07SE-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74LVC1G07SE-7.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:33,724
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Product details
Overview
74LVC1G07SE-7 from Diodes Incorporated is a single CMOS buffer/driver IC with open-drain output, designed for voltage-level shifting and signal isolation in mixed-voltage systems. It operates from 1.65V to 5.5V, tolerates 5.5V inputs, supports IOFF partial power-down mode, and delivers up to 24mA sink current at 3.3V - enabling direct TTL interface in notebook I/O expansion and USB peripheral control circuits.
For engineers reviewing the 74LVC1G07SE-7 datasheet, 74LVC1G07SE-7 pinout, 74LVC1G07SE-7 application, or 74LVC1G07SE-7 equivalent, this page details its open-drain logic behavior, SOT353 package constraints, level-shifting capability across 1.65–5.5V rails, and IOFF-enabled power-down safety for hot-swap interfaces.
Technical Context
This device implements a non-inverting buffer with open-drain output topology, requiring an external pull-up resistor to define high-state voltage. Its IOFF circuit actively disables output leakage during VCC power-down, preventing backflow current into powered subsystems - critical for PCIe slot reset signaling and battery-backed real-time clock enable paths.
The input threshold scales with VCC (e.g., VIH = 0.65×VCC at 1.65–1.95V), ensuring reliable logic detection across supply voltages. Propagation delay is 0.5–8.5ns depending on VCC and temperature, with typical tPD = 2.3ns at 3.3V/25°C - suitable for sub-100MHz digital control timing in embedded microcontroller GPIO expanders.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - enables direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains without level translators. |
| Input Voltage Tolerance | Up to 5.5V - allows safe connection to higher-voltage buses (e.g., 5V I²C) while powered from lower VCC (e.g., 1.8V). |
| Sink Current (IOL) | 24mA at 3.3V - sufficient to drive LEDs, MOSFET gates, or wired-AND interrupt lines without external buffering. |
| IOFF Leakage | ±10μA max - ensures negligible current flow during system sleep, preserving battery life in portable devices. |
| Propagation Delay (tPD) | 0.5ns min / 5.5ns max at 3.3V, -40°C to +125°C - supports deterministic timing in real-time control loops and sensor interface handshaking. |
| ESD Protection | 2kV HBM, 1kV CDM - meets industrial I/O robustness requirements for exposed connectors and board-edge signals. |
| Power Dissipation Capacitance | 4pF at 3.3V - minimizes dynamic power consumption and signal integrity impact in high-speed toggling applications. |
Pinout & Package
SOT353 (SC-70-5) package: 1.2mm × 2.1mm × 0.95mm body, 5-pin surface-mount, moisture sensitivity level 1, tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Input | CMOS-compatible logic input; accepts 0–5.5V regardless of VCC; must be tied to VCC or GND if unused. |
| 2 (GND) | Ground | Reference return path for all internal circuitry and output sink current; requires low-inductance PCB connection. |
| 3 (Y) | Open-Drain Output | Active-low output only; requires external pull-up to define high state; sinks up to 24mA at 3.3V. |
| 4 (VCC) | Supply Voltage | Primary power rail (1.65–5.5V); powers internal logic and enables IOFF control when de-energized. |
| 5 (NC) | No Connection | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.65V–5.5V operation enables reuse across multiple voltage domains in single-board designs without discrete regulators. |
| IOFF Partial Power-Down | Automatically disables output when VCC = 0V, eliminating risk of backfeed current into powered subsystems during hot insertion. |
| 5.5V Input Tolerance | Allows direct connection to legacy 5V buses (e.g., parallel port, older MCU GPIO) while operating from modern low-voltage rails. |
| Wired-OR/Wired-AND Support | Open-drain output enables shared interrupt lines or bus arbitration without additional logic gates or diodes. |
| Low Dynamic Power | Typical CPD = 4pF at 3.3V reduces switching current and EMI in battery-powered IoT sensor nodes. |
Applications
| USB Device Enumeration Control | Microcontroller GPIO Expansion |
|---|---|
|
Use Scenario: Managing USB device attach/detach detection in host controllers where enumeration signals must be isolated during suspend. IC Role / Device Role / Timing Role: Open-drain buffer isolates 3.3V USB PHY status line from 1.8V SoC GPIO, with IOFF preventing leakage during USB suspend. Use Value: Eliminates need for discrete MOSFET isolators; supports <1μA standby current via IOFF shutdown. |
Use Scenario: Extending limited GPIO count on ARM Cortex-M0+ MCUs for LED indicators and button inputs in medical handheld devices. IC Role / Device Role / Timing Role: Non-inverting buffer drives LEDs directly (24mA sink) while translating 1.8V MCU outputs to 5V panel indicators. Use Value: Reduces BOM count by replacing dual-stage transistor+resistor solutions; maintains <2.3ns propagation delay for responsive UI feedback. |
| PCIe Slot Reset Signaling | I²C Bus Level Translation |
|
Use Scenario: Generating PERST# reset pulses to PCIe add-in cards from a 3.3V FPGA while maintaining compatibility with 12V slot power sequencing. IC Role / Device Role / Timing Role: Open-drain driver pulls PERST# low (active) using 3.3V logic, with external 3.3V pull-up; IOFF prevents conflict during FPGA power-down. Use Value: Ensures clean reset assertion without latch-up risk during hot-plug events; meets PCIe 5.0 timing margin (tPERST ≥ 100ms). |
Use Scenario: Interfacing 1.8V sensor nodes to 3.3V master controllers on shared I²C buses in industrial automation gateways. IC Role / Device Role / Timing Role: Bidirectional level shifter implemented via two 74LVC1G07SE-7 units (one per direction), each with dedicated pull-ups. Use Value: Supports standard-mode (100kHz) and fast-mode (400kHz) I²C without timing distortion; eliminates voltage translation IC cost and footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar open-drain buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G07DBVR | Same logic function and IOFF spec, but TI's SOT-23-5 package has larger pad pitch (0.95mm vs 0.65mm) and higher θJA (204°C/W vs 371°C/W). | Less suitable for ultra-dense layouts; thermal performance limits sustained 24mA sink in compact enclosures. | Prefer when existing TI design ecosystem mandates footprint compatibility over thermal density. |
| 74AUP1G07GW,125 | NXP part offers lower ICC (0.5μA typ vs 10μA) and wider temp range (–40°C to +125°C), but max IOL = 4mA at 1.2V - insufficient for 24mA loads. | Only viable for ultra-low-power, low-current signal routing; cannot replace in LED/MOSFET drive roles. | Select only for battery-critical applications where 24mA sink is unnecessary and sub-1μA quiescent current is mandatory. |
Compared with SN74LVC1G07DBVR, the 74LVC1G07SE-7 provides superior thermal dissipation in space-constrained designs; versus 74AUP1G07GW,125, it delivers 6× higher sink current at 3.3V - making it the sole choice for active-load driving in portable electronics.
Availability
74LVC1G07SE-7 is available at Aetrix Electronics and suitable for USB peripheral control, microcontroller GPIO expansion, PCIe reset signaling, and I²C level translation requiring stable component supply across automotive infotainment, industrial gateways, and medical handheld platforms.
Supply support for 74LVC1G07SE-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, low-power solutions for industrial, computing, and consumer markets.
The 74LVC logic family targets mixed-voltage digital interfacing, emphasizing wide supply range, IOFF safety, and small-footprint packaging for space- and power-sensitive embedded systems.
FAQ
Can 74LVC1G07SE-7 drive a 5V LED directly?
Yes - with a 5V pull-up resistor on the Y pin, the device sinks up to 24mA at 3.3V VCC, sufficient for standard 20mA LEDs. Ensure the LED forward voltage plus drop across the series resistor stays within 5V, and verify VOL ≤ 0.45V at IOL = 20mA per datasheet Table 3.
What happens to the output when VCC is removed?
The IOFF circuit disables the output, limiting leakage to ±10μA maximum even with 5.5V applied to A or Y pins. This prevents backfeed current into other powered sections - essential for hot-swap and battery-backup applications.
Is SOT353 pinout compatible with SOT23-5 or SC-70-5 footprints from other vendors?
No - SOT353 (1.2×2.1mm) has 0.65mm pin pitch and unique pin 1 location; it is not mechanically compatible with JEDEC-standard SOT-23-5 (2.9×1.6mm, 0.95mm pitch) or generic SC-70-5 variants. Use Diodes' recommended pad layout (DS32274 p.13) for reliable assembly.
Does this device support bidirectional level shifting?
No - it is a unidirectional buffer with open-drain output. For true bidirectional I²C level shifting, two units are required (one per bus segment), each with dedicated pull-ups - confirmed in Application Note AN-10012 from Diodes Incorporated.
74LVC1G07SE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Open Drain
- Current - Output High, Low:
- -, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74LVC1G07SE-7 FAQ
1.How can I place an order for 74LVC1G07SE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G07SE-7 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 74LVC1G07SE-7 reliable?
The price and inventory of 74LVC1G07SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G07SE-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G07SE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G07SE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G07SE-7?
74LVC1G07SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G07SE-7 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 74LVC1G07SE-7?
For technical support, including 74LVC1G07SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G07SE-7 requirements.
6.How does Aetrix verify that 74LVC1G07SE-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G07SE-7 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 74LVC1G07SE-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G07SE-7?
All 74LVC1G07SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G07SE-7, 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 74LVC1G07SE-7 part is unused and in its original packaging.
Return procedure for 74LVC1G07SE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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