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Analog Devices Inc./Maxim Integrated MAX3392EEUD+
- Part No.:
- MAX3392EEUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3392EEUD+.pdf
- Description:
- IC TRANSLATOR UNIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:386
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Product details
Overview
The MAX3392EEUD+ from Maxim Integrated is a quad unidirectional ±15kV ESD-protected logic-level translator enabling bidirectional voltage translation between VL (1.2V–5.5V) and VCC (1.65V–5.5V) domains, supporting up to 16Mbps data rate in +1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V configurations, with 1μA three-state supply current and thermal short-circuit protection - used in portable POS systems, smart card readers, and I²C/SPI interface bridging.
For engineers reviewing the MAX3392EEUD+ datasheet, MAX3392EEUD+ pinout, MAX3392EEUD+ application, or MAX3392EEUD+ equivalent, key selection criteria include guaranteed 8Mbps operation across full voltage range, slew-rate limiting for EMI reduction, ±15kV HBM ESD rating on VCC-side I/Os, three-state enable control referenced to VL, and compatibility with low-voltage ASIC/PLD interfacing in space-constrained designs.
Technical Context
The MAX3392EEUD+ implements unidirectional level translation (VL → VCC only) using CMOS transmission-gate architecture with integrated speed-up circuitry - a one-shot generator that activates internal pull-up MOSFETs (PU1/PU2) to accelerate rise time during low-to-high transitions. It does not support bidirectional operation like the MAX3377E/MAX3378E variants.
Its four independent channels operate with separate input/output referencing: I/O VL_ pins are referenced to VL (1.2V–5.5V), while I/O VCC_ pins are referenced to VCC (1.65V–5.5V); the THREE-STATE pin is VL-referenced and forces all I/Os into high-impedance when pulled low, reducing total supply current to <1μA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range VL | +1.2V to +5.5V - enables direct interfacing with 1.2V, 1.8V, 2.5V, 3.3V, or 5V logic domains on low-voltage side. |
| Supply Range VCC | +1.65V to +5.5V - supports translation to higher-voltage microcontrollers, FPGAs, or legacy peripherals. |
| Max Data Rate | 16Mbps - achievable only within specific voltage pairs: +1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V. |
| ESD Protection | ±15kV HBM on I/O VCC_ pins - eliminates need for external TVS diodes in handheld or exposed-interface applications. |
| Three-State Current | <1μA - allows low-power sleep mode in battery-operated devices without signal leakage or bus contention. |
| Propagation Delay | 15ns typical (I/O VL→VCC) at +2.5V/+2.5V - ensures timing compliance in high-speed serial interfaces like SPI clock/data paths. |
| Channel Count | 4 independent unidirectional channels - supports full-duplex SPI (MOSI/MISO/SCLK/CS) or dual I²C buses in single package. |
Pinout & Package
The MAX3392EEUD+ is housed in a 14-pin TDFN-EP (3mm × 3mm) package with exposed pad (EP) requiring connection to GND for thermal and EMI performance. Pin 1 is located at the bottom-left corner adjacent to the marking dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 14) | High-side supply input | Power rail for VCC-referenced I/Os; must be ≥1.65V and ≤5.5V; decoupling capacitor required per datasheet. |
| VL (Pin 3) | Low-side supply input | Reference for VL-referenced I/Os and THREE-STATE logic threshold; must satisfy VL ≤ VCC + 0.3V. |
| THREE-STATE (Pin 8) | Active-low output enable | Pull low to disable all four channels into high-Z state; logic thresholds VIH = VL − 0.2V, VIL = 0.15V. |
| GND (Pin 7) | Ground reference | Common return for both supply domains; EP must also connect to this node. |
| I/O VL1–VL4 (Pins 2,4,5,6) | Low-voltage side I/Os | Unidirectional inputs referenced to VL; drive I/O VCC1–VCC4 when active; no internal pull-ups. |
| I/O VCC1–VCC4 (Pins 1,13,12,11) | High-voltage side I/Os | Unidirectional outputs referenced to VCC; sourced/sunk by internal drivers; VOHC = 0.67×VCC, VOLC = 0.4V @ 1mA. |
| N.C. (Pins 9,10) | No connection | Not internally bonded; must remain floating or grounded - no routing or loading permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Quad unidirectional translation | Four independent VL→VCC channels eliminate need for multiple discrete translators in multi-signal interfaces. |
| Rise-time acceleration circuitry | One-shot triggered pull-up MOSFETs reduce tRVCC/tRVL to ≤15ns in optimal voltage ranges, enabling 16Mbps operation. |
| Slew-rate limiting | Controlled edge rates suppress EMI emissions - critical for FCC/CE compliance in portable communication devices. |
| Thermal short-circuit protection | Automatic entry into three-state mode at TJ = +152°C prevents latch-up or permanent damage during fault conditions. |
| 1μA three-state quiescent current | Enables zero-power bus isolation in always-on systems such as GPS modules or smart card power management circuits. |
Applications
| Smart Card Readers | Portable POS Terminals |
|---|---|
Use Scenario: Interfacing 1.8V smart card ICs with 3.3V host controller via ISO/IEC 7816-3 compliant UART signals. IC Role / Device Role / Timing Role: Unidirectional level shifter converting card TX (VL) to host RX (VCC), ensuring signal integrity at 9600–38.4kbps with ±15kV ESD robustness on exposed contact pads. Use Value: Eliminates external ESD protection components and supports hot-plug reliability in payment terminals certified to PCI PTS v6.0. | Use Scenario: Bridging 1.2V barcode scanner logic to 3.3V ARM-based main processor over asynchronous parallel interface. IC Role / Device Role / Timing Role: Quad translator handling DATA[3:0], STROBE, ACK, and BUSY lines with matched propagation delay (<20ns skew) to preserve setup/hold timing. Use Value: Reduces PCB layer count by consolidating four signal translations into one 3×3mm TDFN, meeting IPC-7351B footprint requirements. |
| SPI Interface Isolation | Cell Phone Cradles |
Use Scenario: Level-shifting SPI clock, MOSI, MISO, and chip-select between 1.8V sensor hub MCU and 3.3V baseband processor. IC Role / Device Role / Timing Role: Four-channel unidirectional translator with 15ns max tPD and <10ns channel-to-channel skew - maintains SPI Mode 0/3 timing margins at 8MHz SCLK. Use Value: Enables seamless integration of ultra-low-power sensors without custom voltage-domain partitioning or level-shifting firmware overhead. | Use Scenario: Translating USB UART debug signals (TX/RX/RTS/CTS) between 1.2V mobile SoC and 5V cradle docking station. IC Role / Device Role / Timing Role: Bidirectional-capable? No - MAX3392EEUD+ is unidirectional; used here for TX (SoC→cradle) and RTS (cradle→SoC) with separate direction assignment per channel. Use Value: Guarantees 5V-tolerant output swing on cradle side while protecting SoC I/Os from overvoltage during hot-insertion events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3390EEUD+ | Same quad unidirectional architecture, identical pinout and electrical specs; differs only in guaranteed 8Mbps min data rate across full voltage range (no 16Mbps boost mode). | Preferred where design requires guaranteed 8Mbps operation from 1.2V to 5.5V without voltage-range constraints. | Select MAX3390EEUD+ if system operates across mixed VL/VCC combinations outside +1.8V/+2.5V or +2.5V/+3.3V windows. |
| TXS0104ERGYR | 4-channel auto-direction sensing unidirectional translator; no THREE-STATE pin; 5.5V max VCC; 1.65V–5.5V VL; 60Mbps max but only at 3.3V/3.3V. | Used in I²C-bus applications requiring automatic direction detection; lacks thermal shutdown and ±15kV HBM rating. | Choose TXS0104ERGYR only for cost-sensitive, non-ESD-exposed I²C bridges where three-state control is unnecessary. |
Compared with MAX3390EEUD+, the MAX3392EEUD+ adds 16Mbps capability in narrow voltage bands but shares identical packaging, pinout, and ESD robustness; versus TXS0104ERGYR, it trades auto-direction sensing for guaranteed thermal protection and industrial-grade ESD immunity essential in portable consumer electronics.
Availability
The MAX3392EEUD+ is available at Aetrix Electronics and suitable for portable POS systems, smart card readers, cell phone cradles, and GPS module interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX3392EEUD+ 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing markets.
The MAX3372E–MAX3393E product line delivers ESD-hardened, low-power, multivoltage logic-level translation for portable and space-constrained embedded systems interfacing disparate voltage domains.
FAQ
What is the maximum data rate supported by the MAX3392EEUD+ under standard operating conditions?
The MAX3392EEUD+ guarantees 8Mbps operation across its full specified voltage range (+1.2V ≤ VL ≤ VCC ≤ +5.5V). In optimized voltage domains - specifically +1.8V ≤ VL ≤ VCC ≤ +2.5V and +2.5V ≤ VL ≤ VCC ≤ +3.3V - it achieves up to 16Mbps, as confirmed in the Timing Characteristics table of the official datasheet. This higher rate requires strict adherence to load capacitance (≤15pF) and driver impedance (≤50Ω) limits.
Does the MAX3392EEUD+ support bidirectional level translation like the MAX3377E?
No, the MAX3392EEUD+ is a unidirectional level translator (VL → VCC only) and does not support bidirectional operation. Unlike the MAX3377E or MAX3378E, which use transmission-gate topology for VL ↔ VCC translation, the MAX3392EEUD+ employs dedicated input (I/O VL_) and output (I/O VCC_) pins per channel with no reverse-path capability. Its pin configuration and functional diagram confirm fixed directionality.
How does the THREE-STATE pin function on the MAX3392EEUD+?
The THREE-STATE pin on the MAX3392EEUD+ is an active-low, VL-referenced control input. When pulled low (≤0.15V), it places all four I/O VCC_ and I/O VL_ pins into high-impedance state, reducing total supply current to <1μA. For normal operation, it must be tied to VL (logic high), with VIH threshold defined as VL − 0.2V. This feature enables multidrop bus sharing and low-power sleep modes without external isolation switches.
Can the MAX3392EEUD+ safely interface a 1.2V FPGA I/O bank with a 5V microcontroller peripheral?
Yes, the MAX3392EEUD+ supports VL as low as +1.2V and VCC as high as +5.5V, making it suitable for 1.2V-to-5V translation. However, ensure VL ≤ VCC + 0.3V (i.e., VL ≤ 5.3V, satisfied here), and verify that the 5V microcontroller's output low voltage (VOL) remains ≤0.4V to meet MAX3392EEUD+'s VILC specification. Also confirm that capacitive load on I/O VCC_ lines stays ≤15pF for 8Mbps operation.
What thermal protection mechanism is implemented in the MAX3392EEUD+?
The MAX3392EEUD+ integrates thermal short-circuit protection that monitors junction temperature. If TJ reaches +152°C due to overload or sustained short, the device automatically enters three-state mode to halt current flow. Once TJ cools to +142°C, normal operation resumes autonomously. This behavior is documented in the Thermal Short-Circuit Protection section of the MAX3392EEUD+ datasheet and applies to all channels simultaneously.
MAX3392EEUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Tube
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- 1.2 V ~ 5.5 V
- Voltage - VCCB:
- 1.65 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Tri-State
- Data Rate:
- 16Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Power Supply Decoupling, Thermal-Shutdown Protection
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP (0.173", 4.40mm Width)
MAX3392EEUD+ FAQ
1.How can I place an order for MAX3392EEUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3392EEUD+ 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 MAX3392EEUD+ reliable?
The price and inventory of MAX3392EEUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3392EEUD+ is usually 5 days.
3.What payment methods are accepted for MAX3392EEUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3392EEUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3392EEUD+?
MAX3392EEUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3392EEUD+ 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 MAX3392EEUD+?
For technical support, including MAX3392EEUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3392EEUD+ requirements.
6.How does Aetrix verify that MAX3392EEUD+ is sourced from the original manufacturer or authorized distributors?
All MAX3392EEUD+ 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 MAX3392EEUD+ meets industry standards.
7.What is the process for return or replacement of MAX3392EEUD+?
All MAX3392EEUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3392EEUD+, 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 MAX3392EEUD+ part is unused and in its original packaging.
Return procedure for MAX3392EEUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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