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Texas Instruments SN74LVC1G19YEPR
- Part No.:
- SN74LVC1G19YEPR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
SN74LVC1G19YEPR.pdf
- Description:
- IC DECODER/DEMUX 1 X 1:2 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SN74LVC1G19YEPR from Texas Instruments is a 1-of-2 decoder/demultiplexer IC operating from 1.65 V to 5.5 V, with 4 ns maximum propagation delay at 3.3 V, ±24 mA output drive capability, and Ioff support for live insertion and partial-power-down mode. It decodes a single address bit (A) to assert either Y0 or Y1 low when enable (E) is active low, used in compact audio docks and portable MP3 players.
For engineers reviewing the SN74LVC1G19YEPR datasheet, SN74LVC1G19YEPR pinout, SN74LVC1G19YEPR application, or SN74LVC1G19YEPR equivalent, this page delivers verified functional modes, NanoFree™ package details, absolute maximum ratings, and real-world demux use cases - all confirmed against TI's SCES464G revision G datasheet.
Technical Context
The SN74LVC1G19YEPR implements a combinational logic decoder with active-low enable (E), where A selects between two mutually exclusive low-active outputs (Y0/Y1). Its truth table defines three distinct functional states: E high disables both outputs (both high), while E low enables decoding - A low asserts Y0, A high asserts Y1.
Designed for mixed-voltage systems, it accepts input voltages up to 5.5 V independent of VCC, supports down-translation to VCC, and features Ioff circuitry that isolates inputs/outputs during power-off to prevent back-drive current. Output ground bounce (VOLP) and VOH undershoot (VOHV) are characterized at 0.8 V and >2 V typical (VCC = 3.3 V, TA = 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| tpd (max) | 4 ns at VCC = 3.3 V, CL = 15 pF - Supports high-speed signal routing in portable audio and SSD control paths. |
| IOL / IOH | ±24 mA at VCC = 3.3 V - Drives multiple CMOS loads or small LEDs without external buffers. |
| Ioff | <10 µA at VI/VO = 5.5 V - Enables safe hot-plug operation and prevents back-current in partial-power-down systems. |
| Input Tolerance | VI up to 5.5 V - Allows interfacing with 5 V controllers while powered from lower VCC (e.g., 1.8 V or 2.5 V). |
| ICC (max) | 10 µA - Minimizes quiescent power in battery-powered devices like wireless headsets and PDAs. |
| ESD Rating | ±2000 V HBM - Meets industrial-grade robustness requirements per JESD22-A114. |
Pinout & Package
SN74LVC1G19YEPR uses the NanoFree™ DSBGA (YZP) package - a 1.41 mm × 0.91 mm, 6-ball die-scale package with bottom-side I/O. This ultra-compact footprint eliminates leadframe and wirebonds, reducing parasitics and enabling high-density PCB layouts in space-constrained portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Address input | Selects Y0 (A = low) or Y1 (A = high) when E is asserted; overvoltage tolerant to 5.5 V. |
| GND | Ground reference | Return path for all internal logic and output currents; must be low-impedance for stable VOLP performance. |
| E | Enable input | Active-low control: E high forces both outputs high (disabled state); E low enables decoding. |
| Y1 | Output 1 | Asserts low when E = low and A = high; open-drain compatible due to strong pull-down and high-impedance off-state. |
| VCC | Power supply | Supplies core logic and output drivers; requires local 0.1 µF bypass capacitor per TI layout guidelines. |
| Y0 | Output 0 | Asserts low when E = low and A = low; functionally identical to Y1 but non-inverting relative to A. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ DSBGA packaging | 1.41 mm × 0.91 mm footprint - eliminates package parasitics and reduces board area by >50% vs. SOT-23. |
| Ioff partial-power-down support | Prevents back-drive current during system sleep or hot-swap events, enabling robust power sequencing. |
| 5-V tolerant inputs | Accepts 0–5.5 V signals regardless of VCC (1.65–5.5 V), simplifying inter-voltage domain interfacing. |
| Low ground bounce (VOLP) | <0.8 V typical at VCC = 3.3 V - maintains signal integrity in noise-sensitive audio and video signal paths. |
| High noise immunity | VIH/VIL thresholds scale with VCC (e.g., VIH = 0.7×VCC at 4.5–5.5 V), ensuring reliable switching across voltage rails. |
Applications
| Audio Dock Control | MP3 Player Signal Routing |
|---|---|
Use Scenario: Selecting between line-out and headphone amplifier paths in portable audio docks. IC Role / Device Role / Timing Role: 1-of-2 demultiplexer routing digital control signals to analog switch enable inputs. Use Value: Low tpd (4 ns) ensures glitch-free channel switching; Ioff prevents pop/click during power transitions. |
Use Scenario: Enabling discrete DAC or codec channels based on playback mode (mono/stereo). IC Role / Device Role / Timing Role: Decoder asserting dedicated reset or clock-enable lines for audio subsystems. Use Value: 5.5 V input tolerance allows direct connection to 5 V microcontroller GPIOs while VCC runs at 3.3 V. |
| Wireless Headset Interface | SSD Power Management |
Use Scenario: Managing LED status indicators and microphone bias control in Bluetooth headsets. IC Role / Device Role / Timing Role: Demux driving dual-purpose GPIOs - one for LED anode, one for MIC bias enable. Use Value: ±24 mA drive supports direct LED drive; low ICC (10 µA) extends battery life in always-on monitoring modes. |
Use Scenario: Sequencing power rails for NAND flash and controller in client SSD modules. IC Role / Device Role / Timing Role: Decoder enabling VCCQ and VPP regulators based on host command state. Use Value: Ioff isolation prevents backfeed from powered regulators into unpowered controller logic during suspend. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1-of-2 decoder/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G139YEPR | Dual 1-of-2 decoder in same YZP package; includes dual enable (1E, 2E) and inverted outputs (Y0̅, Y1̅). | Required when simultaneous independent decode paths or active-high enable logic is needed. | Choose SN74LVC1G139YEPR only if dual-decoder functionality or inverted outputs are required - not a drop-in replacement. |
| 74LVC1G19GW,125 | SC70-6 package (2.0 mm × 1.25 mm); identical logic function and electrical specs, but larger footprint and higher RθJA (259°C/W). | Suitable where board space permits larger package and thermal margin is less constrained. | Use 74LVC1G19GW,125 only if NanoFree size is unnecessary and SC70 assembly infrastructure is already in place. |
Compared with SN74LVC1G19YEPR, SN74LVC1G139YEPR adds functional redundancy and inversion flexibility at the cost of increased complexity, while 74LVC1G19GW,125 trades minimal size advantage for broader manufacturing compatibility - neither offers pin-to-pin equivalence.
Availability
SN74LVC1G19YEPR is available at Aetrix Electronics and suitable for portable audio docks, wireless headset interfaces, MP3 player signal routing, and SSD power sequencing requiring stable component supply, long-term lifecycle support, and verified NanoFree™ DSBGA sourcing.
Supply support for SN74LVC1G19YEPR 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 company specializing in analog and embedded processing technologies, with leadership in low-power logic, precision analog, and high-reliability interface solutions.
SN74LVC1G19YEPR belongs to TI's LVC logic family - designed for ultra-low-power, high-speed, mixed-voltage applications in portable consumer electronics and industrial edge devices where board space and power efficiency are critical.
FAQ
What is the function of the E pin on the SN74LVC1G19YEPR?
The E pin on the SN74LVC1G19YEPR is the active-low enable input. When E is high, both outputs (Y0 and Y1) are forced high (disabled state). When E is low, the device decodes the A input: A low drives Y0 low, A high drives Y1 low. This behavior is confirmed in Table 1 (Function Table) of TI's SCES464G datasheet.
Does the SN74LVC1G19YEPR support 5-V input signals while operating at 1.8 V VCC?
Yes, the SN74LVC1G19YEPR supports input voltages up to 5.5 V regardless of VCC level (1.65–5.5 V), as specified in the Recommended Operating Conditions table. This allows direct interfacing with 5 V microcontrollers while powering the SN74LVC1G19YEPR from a 1.8 V rail - a key feature verified in Section 6.3 of the datasheet.
What package type does SN74LVC1G19YEPR use, and what are its dimensions?
SN74LVC1G19YEPR uses the NanoFree™ DSBGA (YZP) package: a 6-ball, die-scale package measuring 1.41 mm × 0.91 mm (nominal body size), with bottom-side I/O. This information is explicitly listed in the Device Information table and Mechanical, Packaging, and Orderable Information section of TI's SCES464G datasheet.
Can SN74LVC1G19YEPR drive LEDs directly?
Yes, SN74LVC1G19YEPR can drive LEDs directly: its IOL rating is 24 mA at VCC = 3.3 V (Section 6.3), sufficient for standard indicator LEDs. However, a series current-limiting resistor must be used to avoid exceeding absolute max output current (±50 mA) and to set forward current within LED specifications.
Is SN74LVC1G19YEPR suitable for partial-power-down applications?
Yes, SN74LVC1G19YEPR is fully specified for partial-power-down applications using its Ioff feature. When VCC = 0 V, Ioff limits input/output leakage to <10 µA, preventing damaging back-current - a capability validated per JESD78 Class II latch-up testing and documented in Sections 3 and 8.3 of the datasheet.
SN74LVC1G19YEPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 6-XFBGA, DSBGA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 1:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- 32mA, 32mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
SN74LVC1G19YEPR FAQ
1.How can I place an order for SN74LVC1G19YEPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G19YEPR 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 SN74LVC1G19YEPR reliable?
The price and inventory of SN74LVC1G19YEPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G19YEPR is usually 5 days.
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4.How is shipping managed for SN74LVC1G19YEPR?
SN74LVC1G19YEPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G19YEPR 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 SN74LVC1G19YEPR?
For technical support, including SN74LVC1G19YEPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G19YEPR requirements.
6.How does Aetrix verify that SN74LVC1G19YEPR is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G19YEPR 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 SN74LVC1G19YEPR meets industry standards.
7.What is the process for return or replacement of SN74LVC1G19YEPR?
All SN74LVC1G19YEPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G19YEPR, 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 SN74LVC1G19YEPR part is unused and in its original packaging.
Return procedure for SN74LVC1G19YEPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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