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Texas Instruments SN74LVC1G29SYZPR
- Part No.:
- SN74LVC1G29SYZPR
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
SN74LVC1G29SYZPR.pdf
- Description:
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Product details
Overview
SN74LVC1G29SYZPR from Texas Instruments is a single 2-of-3 decoder/demultiplexer IC operating from 1.65 V to 5.5 V, featuring Ioff partial-power-down support, ±24-mA output drive at 3.3 V, 5.1 ns max propagation delay at 3.3 V, and NanoFree™ WCSP (YZP) 8-bump DSBGA packaging. It enables selective routing of control signals in low-pin-count power-constrained systems such as portable sensor hubs and battery-powered IoT node controllers.
For engineers reviewing the SN74LVC1G29SYZPR datasheet, SN74LVC1G29SYZPR pinout, SN74LVC1G29SYZPR application, or SN74LVC1G29SYZPR equivalent, key selection considerations include its 3-output active-low decoding logic, Ioff-enabled backflow prevention during partial power-down, 0.23-mm large bump Pb-free solder composition, and compatibility with 1.65–5.5-V mixed-voltage interface domains.
Technical Context
This device implements positive-logic 2-of-3 decoding: when enable (G) is low, exactly one output (Y0–Y2) goes low based on A0/A1 inputs; all outputs go high when G is high. Its logic diagram confirms noninverting input-to-output mapping for address lines and inverting behavior for the enable path.
Designed for ultra-small footprint applications, SN74LVC1G29SYZPR uses die-as-package NanoFree™ WCSP construction with bottom-side solder bumps - no wire bonds or leadframe - resulting in 102°C/W θJA thermal resistance and minimal PCB area occupancy. Ioff circuitry actively disables outputs during power-down to prevent current backflow into powered sections of the system.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports direct interfacing with 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains without level shifters. |
| tpd (Max) | 5.1 ns at VCC = 3.3 V, CL = 15 pF - enables timing-critical enable/disable sequencing in fast-switching control paths. |
| Ioff Support | Active at VCC = 0 V - prevents damaging current flow between powered and unpowered subsystems during hot-swap or sleep-mode transitions. |
| Output Drive | ±24 mA at VCC = 3.3 V - sufficient to directly drive multiple LVC inputs or small capacitive loads (<15 pF) without buffering. |
| Input Voltage Range | –0.5 V to 5.5 V - allows 5-V-tolerant inputs even when VCC = 1.65 V, simplifying mixed-supply signal routing. |
| ICC (Max) | 10 µA - ensures negligible quiescent current impact in always-on battery-backed monitoring circuits. |
| Package | NanoFree™ WCSP (YZP), 0.23-mm large bump, 8-terminal DSBGA - occupies only 0.87 mm² PCB area with 0.4-mm pitch. |
Pinout & Package
NanoFree™ WCSP (YZP) package: 8-terminal wafer-level chip-scale package with bottom-side solder bumps; pin 1 identified by Pb-free solder composition marker (•); dimensions 0.87 mm × 0.87 mm × 0.26 mm (height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Bottom) | VCC | Main supply rail connection; must be decoupled locally with ≤100 nF ceramic capacitor for noise immunity. |
| 2 (Bottom) | Y0 | Active-low decoded output; asserts low when G = L, A1A0 = 00 per function table. |
| 3 (Bottom) | A0 | LSB address input; accepts voltages up to 5.5 V regardless of VCC level. |
| 4 (Bottom) | GND | Ground reference for all internal circuitry and output switching; requires low-inductance connection to system ground plane. |
| 5 (Bottom) | Y2 | Active-low decoded output; asserts low when G = L, A1A0 = 11 per function table. |
| 6 (Bottom) | A1 | MSB address input; used with A0 to select one of three output lines. |
| 7 (Bottom) | Y1 | Active-low decoded output; asserts low when G = L, A1A0 = 01 or 10 per function table. |
| 8 (Bottom) | G | Enable input; device operates only when G = L; all outputs forced high when G = H. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff Partial-Power-Down Protection | Prevents current backflow from live rails into unpowered SN74LVC1G29SYZPR, enabling safe integration in multi-rail systems with staggered power sequencing. |
| 5.5-V-Tolerant Inputs | Allows direct connection of 5-V control signals to A0, A1, and G while VCC = 1.8 V - eliminates external level translators in mixed-voltage designs. |
| Low Dynamic Power Consumption | Typical Cpd = 18 pF at 3.3 V enables <1 mW switching power at 10 MHz - critical for thermally constrained wearables and edge sensors. |
| NanoFree™ Packaging | Die-as-package construction reduces parasitic inductance and capacitance, improving signal integrity and enabling placement directly under BGA processors or RF modules. |
| Latch-Up Immunity | Exceeds 100 mA per JESD 78 Class II - ensures robust operation in noisy industrial environments with transient coupling onto control lines. |
Applications
| Portable Sensor Hub Control | IoT Node Power Sequencing |
|---|---|
|
Use Scenario: Selecting among three discrete analog sensor power rails (temperature, humidity, accelerometer) using a single microcontroller GPIO pair. IC Role / Device Role / Timing Role: 2-of-3 decoder providing mutually exclusive enable signals to load switches controlling sensor power domains. Use Value: Reduces MCU GPIO usage from three dedicated lines to two address + one enable line while guaranteeing only one sensor is powered at a time. |
Use Scenario: Enabling subsystems (radio, memory, sensor interface) in strict sequence during cold boot of a battery-powered edge node. IC Role / Device Role / Timing Role: Demultiplexer generating timed enable pulses to PMIC enable inputs via RC-delayed G input. Use Value: Eliminates need for firmware-controlled delays or additional timing ICs - hardware-enforced startup order with <5.1 ns skew between outputs. |
| Low-Power Display Backlight Selection | Configurable Peripherals Interface |
|
Use Scenario: Choosing between three backlight driver ICs (white, RGB, monochrome) in a compact handheld display module. IC Role / Device Role / Timing Role: Active-low decoder output driving enable pins of three independent LED drivers. Use Value: Enables dynamic backlight mode switching with zero software overhead and guaranteed glitch-free transitions due to synchronous enable gating. |
Use Scenario: Routing configuration signals (reset, clock enable, interrupt mask) to one of three optional peripheral ICs on a modular carrier board. IC Role / Device Role / Timing Role: Decoder selecting which peripheral receives shared control bus signals based on hardware strap settings. Use Value: Supports field-reconfigurable peripheral combinations without PCB redesign - only firmware and strap changes required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar decoder/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G139DCKR | 2-line-to-4-line decoder with dual enable; larger 6-pin SC70 package; no Ioff support. | Provides four outputs instead of three; lacks partial-power-down capability; higher board area consumption. | Choose when needing 4-output decoding and space permits SC70; avoid in partial-power-down systems. |
| NC7SZ29M5X | 2-of-3 decoder in SOT-23-5; supports 1.65–5.5 V; no Ioff; 7 ns tpd at 3.3 V. | Smaller 5-pin footprint but only two outputs active simultaneously; no backflow protection; higher propagation delay. | Acceptable for cost-sensitive, non-power-gated designs where 5-pin layout suffices and Ioff is not required. |
Compared with SN74LVC1G29SYZPR, SN74LVC1G139DCKR offers expanded decode width but sacrifices power-down safety and miniaturization, while NC7SZ29M5X trades Ioff and speed for lower pin count - making SN74LVC1G29SYZPR the sole choice for ultra-compact, mixed-voltage, and partial-power-down–compliant 3-output decoding.
Availability
SN74LVC1G29SYZPR is available at Aetrix Electronics and suitable for portable sensor hubs, IoT node power sequencing, low-power display backlight selection, configurable peripherals interfaces, and other applications requiring stable component supply with guaranteed long-term sourcing.
Supply support for SN74LVC1G29SYZPR 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 delivering analog and embedded processing solutions, with leadership in low-power logic, precision analog, and high-reliability interface technologies.
The SN74LVC1G29SYZPR belongs to TI's LVC low-voltage CMOS logic family, engineered specifically for space-constrained, multi-rail digital systems requiring robust voltage translation, ultra-low static power, and seamless integration into advanced packaging architectures.
FAQ
What is the maximum operating temperature range for SN74LVC1G29SYZPR?
The SN74LVC1G29SYZPR is specified for operation from –40°C to +85°C ambient temperature. This range is validated across all electrical parameters in the recommended operating conditions table, including VIH/VIL thresholds, VOH/VOL levels, and tpd performance. The NanoFree™ YZP package's low thermal resistance (102°C/W) ensures reliable operation within this range even under moderate power dissipation.
Does SN74LVC1G29SYZPR support 5-V input signals when powered from 1.8 V?
Yes, SN74LVC1G29SYZPR supports input voltages up to 5.5 V on all inputs (A0, A1, G) regardless of VCC level - including when VCC = 1.8 V. This 5-V-tolerant input capability is explicitly confirmed in the "Recommended Operating Conditions" table and eliminates the need for external level-shifting circuitry in mixed-voltage systems.
How does the Ioff feature function in SN74LVC1G29SYZPR during partial power-down?
In SN74LVC1G29SYZPR, the Ioff circuitry automatically disables all outputs when VCC = 0 V, preventing current from flowing backward into the device through any input or output pin. This protects upstream drivers and downstream loads during hot-swap events or staggered power sequencing - a requirement verified per JESD 78 Class II latch-up testing and documented in the "Features" section.
What is the pin 1 identifier for SN74LVC1G29SYZPR in the YZP package?
For SN74LVC1G29SYZPR in the NanoFree™ YZP WCSP package, pin 1 is identified by a Pb-free solder composition marker (•) on the bottom side of the package. This distinguishes it from SnPb-marked YEP variants and is defined in TI's ordering information documentation for YZP devices.
Can SN74LVC1G29SYZPR drive a 15-pF capacitive load within its specified timing?
Yes, SN74LVC1G29SYZPR's switching characteristics are explicitly characterized with CL = 15 pF, and its max tpd of 5.1 ns at 3.3 V is guaranteed under those conditions. The "Switching Characteristics" table confirms this test condition, and the "Electrical Characteristics" section validates output drive strength (±24 mA at 3.3 V) sufficient to charge/discharge that load within specification.
SN74LVC1G29SYZPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74LVC1G29SYZPR FAQ
1.How can I place an order for SN74LVC1G29SYZPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G29SYZPR 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 SN74LVC1G29SYZPR reliable?
The price and inventory of SN74LVC1G29SYZPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G29SYZPR is usually 5 days.
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SN74LVC1G29SYZPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G29SYZPR 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 SN74LVC1G29SYZPR?
For technical support, including SN74LVC1G29SYZPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G29SYZPR requirements.
6.How does Aetrix verify that SN74LVC1G29SYZPR is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G29SYZPR 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 SN74LVC1G29SYZPR meets industry standards.
7.What is the process for return or replacement of SN74LVC1G29SYZPR?
All SN74LVC1G29SYZPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G29SYZPR, 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 SN74LVC1G29SYZPR part is unused and in its original packaging.
Return procedure for SN74LVC1G29SYZPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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