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Nexperia USA Inc. 74AUP3G34DCH
- Part No.:
- 74AUP3G34DCH
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74AUP3G34DCH.pdf
- Description:
- IC BUF NON-INVERT 3.6V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,404
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Product details
Overview
74AUP3G34DCH from Nexperia is a low-power triple buffer IC with Schmitt-trigger inputs, designed for signal conditioning and noise-immune level translation in battery-powered and space-constrained systems. It operates across 0.8 V to 3.6 V supply, delivers ≤0.9 μA max ICC, supports partial power-down via IOFF, and functions from −40 °C to +125 °C - used in portable sensor interfaces, IoT node signal routing, and low-voltage MCU peripheral buffering.
For engineers reviewing the 74AUP3G34DCH datasheet, 74AUP3G34DCH pinout, 74AUP3G34DCH application, or 74AUP3G34DCH equivalent, key selection criteria include its ultra-low static current, IOFF-enabled power-gating capability, Schmitt-trigger noise immunity, and compatibility with mixed-voltage logic domains (inputs tolerate up to 3.6 V independent of VCC).
Technical Context
The 74AUP3G34DCH implements three independent non-inverting buffers, each with hysteresis-equipped Schmitt-trigger inputs to reject slow-rising or noisy signals. Its IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V.
It complies with JEDEC standards across five voltage tiers (JESD8-12 through JESD8-B), supports load capacitances up to 30 pF, and achieves propagation delays as low as 1.4 ns (VCC = 3.0–3.6 V, CL = 5 pF), with dynamic power dissipation governed by CPD = 4.0 pF at 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8 V to 3.6 V - enables direct interface with 0.9 V, 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Max ICC (Static) | 0.9 μA at VCC = 0.8–3.6 V - ensures negligible battery drain in always-on sensor nodes or sleep-mode subsystems. |
| IOFF Leakage | ±0.75 μA at VCC = 0 V - prevents damaging back-current when powered down while I/O lines remain live at up to 3.6 V. |
| Propagation Delay | 1.4 ns typical (VCC = 3.3 V, CL = 5 pF) - supports high-speed signal routing in compact timing-critical paths. |
| Input Hysteresis | Typical ΔV = 0.2 × VCC - rejects noise spikes and slow edges in industrial or automotive sensor signal chains. |
| ESD Robustness | HBM >5000 V, CDM >1000 V - reduces need for external protection in handheld and field-deployable electronics. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLC I/O, and extended-range edge devices. |
Pinout & Package
VSSOP8 package (SOT765-1): plastic very thin shrink small outline, 8 leads, 2.3 mm body width, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6 | 1A / 2A / 3A | Independent digital input terminals for each of the three buffers; accept 0–3.6 V regardless of VCC. |
| 2, 5, 7 | 3Y / 2Y / 1Y | Corresponding non-inverting buffered outputs; drive loads up to ±4 mA at 3.0 V. |
| 4 | GND | Ground reference (0 V); must be low-impedance connection to minimize switching noise coupling. |
| 8 | VCC | Main supply rail; decoupling capacitor (100 nF ceramic) required within 3 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable operation with slow or noisy signals (e.g., mechanical switch debouncing, analog sensor thresholds). |
| IOFF partial power-down | Allows safe hot-insertion and multi-rail system sequencing without latch-up risk or bus contention. |
| Wide VCC range (0.8–3.6 V) | Eliminates need for external voltage translators in heterogeneous logic systems (e.g., 1.2 V FPGA core + 3.3 V peripherals). |
| Low noise overshoot/undershoot | <10 % of VCC - reduces EMI and crosstalk in dense PCB layouts with adjacent high-speed traces. |
| JEDEC-compliant voltage tiers | Validated interoperability across legacy and emerging low-voltage standards (JESD8-12 to JESD8-B). |
Applications
| Portable Sensor Hub | Automotive Body Control Module |
|---|---|
|
Use Scenario: Aggregating analog sensor outputs (temperature, humidity, motion) into a low-power MCU with 1.8 V I/O. IC Role / Device Role / Timing Role: Signal conditioning and voltage-level adaptation between 3.3 V sensors and 1.8 V MCU inputs. Use Value: Schmitt-trigger inputs suppress noise from long sensor traces; IOFF prevents backfeed when MCU sleeps and sensor rails remain active. |
Use Scenario: Isolating wake-up signals from door handle capacitive sensors to a 3.3 V body controller ASIC. IC Role / Device Role / Timing Role: Noise-immune signal buffering and domain isolation in 12 V vehicle electrical environment. Use Value: Withstands load-dump transients on adjacent nets due to low input capacitance (1.0 pF) and high noise immunity. |
| Industrial PLC Digital Input Card | Wearable Health Monitor |
|
Use Scenario: Conditioning dry-contact closure signals from factory floor equipment before digitization. IC Role / Device Role / Timing Role: Debouncing and logic-level translation from 24 V field wiring to 3.3 V microcontroller inputs. Use Value: Input tolerance up to 3.6 V allows direct connection to optocoupler outputs without clamping diodes. |
Use Scenario: Routing ECG electrode signals through a low-power multiplexer to an ADC in a battery-operated patch. IC Role / Device Role / Timing Role: Low-leakage signal gating and rail-to-rail compatible interfacing between analog front-end and digital subsystem. Use Value: 0.9 μA max ICC extends battery life beyond 7 days in continuous monitoring mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G34DCUR | Higher ICC (max 10 μA), no Schmitt inputs, 1.65–5.5 V VCC range | Better suited for higher-speed 3.3 V/5 V systems where noise immunity is less critical | Select when operating above 3.6 V or requiring faster tpd (1.1 ns @ 3.3 V), but avoid in noisy or sub-1.65 V domains. |
| 74LVC3G17GW,125 | Includes Schmitt inputs, but only dual-channel; same VCC (1.65–5.5 V) and ICC (max 10 μA) | Requires two devices to match channel count; lacks IOFF functionality | Use only if third buffer is omitted or implemented elsewhere; not suitable for power-gated designs. |
Compared with SN74LVC3G34DCUR and 74LVC3G17GW,125, the 74AUP3G34DCH uniquely combines ultra-low ICC, Schmitt-trigger noise rejection, IOFF, and sub-1 V operation - making it irreplaceable in energy-constrained, mixed-voltage, or electrically harsh environments.
Availability
74AUP3G34DCH is available at Aetrix Electronics and suitable for portable medical devices, automotive body electronics, industrial sensor nodes, and battery-powered IoT gateways requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74AUP3G34DCH 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AUP (Advanced Ultra-low Power) logic family targets ultra-low-power, high-noise-immunity applications in space- and energy-constrained systems - emphasizing sub-1 V operation, IOFF, and robust ESD performance.
FAQ
Does 74AUP3G34DCH support true bidirectional operation?
No. The 74AUP3G34DCH is a unidirectional non-inverting buffer with fixed input (A) and output (Y) terminals per channel. It lacks direction-control pins or internal bus-switch architecture. Bidirectional data flow requires separate transmit/receive buffers or dedicated transceivers like the 74AUP2G240.
Can 74AUP3G34DCH drive a 50 pF load reliably?
No. The datasheet specifies dynamic characteristics only up to 30 pF load capacitance. At CL = 50 pF, propagation delay increases significantly (extrapolated >8 ns at 3.3 V), and output rise/fall times degrade beyond guaranteed specs. For >30 pF loads, add series termination or use a higher-drive buffer like the 74AUP2G04.
What is the maximum input transition rate (Δt/ΔV) supported?
The device is characterized for input transition rates up to 200 ns/V across VCC = 0.8–3.6 V. This means a 1.8 V logic swing (0.3×VCC to 0.7×VCC) must transition within ≥360 ns to ensure reliable Schmitt-trigger recognition. Slower edges may cause metastability or oscillation at the threshold crossing.
Is pin 1 marking visible on the 74AUP3G34DCH package?
Yes. Per datasheet Figure 6 and Table 2, the pin 1 indicator is a molded notch or dimple located on the lower-left corner of the VSSOP8 body, directly below the "a34" top-marking code. This matches industry-standard VSSOP8 orientation and is verified in SOT765-1 package drawings.
74AUP3G34DCH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AUP
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74AUP3G34DCH FAQ
1.How can I place an order for 74AUP3G34DCH through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUP3G34DCH 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 74AUP3G34DCH reliable?
The price and inventory of 74AUP3G34DCH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUP3G34DCH is usually 5 days.
3.What payment methods are accepted for 74AUP3G34DCH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUP3G34DCH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUP3G34DCH?
74AUP3G34DCH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUP3G34DCH 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 74AUP3G34DCH?
For technical support, including 74AUP3G34DCH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUP3G34DCH requirements.
6.How does Aetrix verify that 74AUP3G34DCH is sourced from the original manufacturer or authorized distributors?
All 74AUP3G34DCH 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 74AUP3G34DCH meets industry standards.
7.What is the process for return or replacement of 74AUP3G34DCH?
All 74AUP3G34DCH units undergo pre-shipment inspection (PSI). If there is an issue with 74AUP3G34DCH, 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 74AUP3G34DCH part is unused and in its original packaging.
Return procedure for 74AUP3G34DCH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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