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Analog Devices Inc./Maxim Integrated MAX3393EEUD+T
- Part No.:
- MAX3393EEUD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3393EEUD+T.pdf
- Description:
- IC TRANSLATOR UNIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,821
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Product details
Overview
MAX3393EEUD+T from Maxim Integrated is a quad unidirectional logic-level translator enabling voltage-domain bridging between low-voltage (VL = +1.2V to +5.5V) and higher-voltage (VCC = +1.65V to +5.5V) digital interfaces. It supports guaranteed 8Mbps data rate across full voltage range, delivers ±15kV HBM ESD protection on VCC-side I/Os, operates with 130µA typical supply current, and features three-state output mode reducing current to <1µA - used in SPI/I²C signal translation between 1.8V ASICs and 3.3V/5V microcontrollers.
For engineers reviewing the MAX3393EEUD+T datasheet, MAX3393EEUD+T pinout, MAX3393EEUD+T application, or MAX3393EEUD+T equivalent, key selection criteria include its unidirectional VL→VCC translation direction per channel, 14-pin TSSOP package compatibility, slew-rate-limited 8Mbps timing performance under 15pF load, thermal short-circuit protection, and support for mixed-voltage system interconnects without level-shifting resistors or external buffers.
Technical Context
The MAX3393EEUD+T implements four independent unidirectional level-shifting channels using MOSFET-based pass-gate architecture with integrated speed-up circuitry. Each channel translates signals strictly from VL-referenced inputs (I/O VL1–VL4) to VCC-referenced outputs (I/O VCC1–VCC4), with no bidirectional capability.
It employs edge- and level-sensitive rise-time accelerators on both sides to achieve up to 16Mbps operation within specific voltage domains (+1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V), while maintaining guaranteed 8Mbps over the full +1.2V to +5.5V VL and +1.65V to +5.5V VCC range. Three-state control is referenced to VL and disables all I/O drivers simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range VL | +1.2V to +5.5V - enables direct interface with 1.2V, 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Supply Range VCC | +1.65V to +5.5V - supports translation into legacy 3.3V/5V systems without level-shifter biasing constraints |
| Guaranteed Data Rate | 8Mbps over full voltage range - ensures reliable high-speed serial communication (e.g., SPI at 8MHz clock) without timing margin loss |
| ESD Protection | ±15kV HBM on VCC-side I/Os - eliminates need for external TVS diodes in handheld or exposed-interface applications |
| Three-State Current | <1µA - allows low-power sleep-mode operation in battery-powered systems without signal leakage |
| Propagation Delay | 4ns to 30ns (typ.) - meets tight setup/hold timing for 8Mbps SPI with ≤12.5ns period |
| Channel Count | 4 independent unidirectional channels - matches standard quad-SPI bus (CLK/MOSI/MISO/CS) or dual I²C buses |
Pinout & Package
The MAX3393EEUD+T is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin assignments are fixed and validated per Maxim's official pin configuration diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary high-side supply input - powers all VCC-referenced I/Os and internal logic; must be ≥1.65V |
| 2 | VL | Low-side logic reference - sets input thresholds and output swing for VL-side I/Os; valid down to +1.2V |
| 3 | THREE-STATE | VL-referenced enable - pulled low to place all I/Os in high-impedance state; reduces supply current to <1µA |
| 4 | GND | Analog/digital ground reference - must be connected to system common ground plane for ESD and noise integrity |
| 5–8 | I/O VL1–VL4 | Unidirectional inputs (VL side) - accept low-voltage logic signals; drive corresponding VCC outputs when enabled |
| 9–12 | I/O VCC1–VCC4 | Unidirectional outputs (VCC side) - deliver translated high-voltage logic levels; open-drain compatible with pull-up resistors |
| 13–14 | N.C. | No internal connection - left floating or tied to GND per layout best practice; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional VL→VCC translation | Eliminates contention risk in master-slave configurations where direction is fixed (e.g., sensor data to MCU) |
| Rise-time acceleration circuitry | Enables 16Mbps operation in +1.8V/+2.5V or +2.5V/+3.3V domains without external active components |
| Slew-rate limiting | Reduces EMI emissions during fast transitions - critical for FCC/CE compliance in portable devices |
| Thermal short-circuit protection | Automatically forces three-state mode at +152°C junction temperature - prevents latch-up and permanent damage |
| 10kΩ internal pull-ups (disabled in three-state) | Provides defined logic states on VCC-side outputs during normal operation - avoids floating-bus failures |
Applications
| Smart Card Readers | SPI Interface Translation |
|---|---|
Use Scenario: Translating command/response signals between a 1.8V smart card IC and a 3.3V host controller in payment terminals. IC Role / Device Role / Timing Role: Unidirectional level shifter for CLK, I/O, RST, and VCC lines - ensures protocol-compliant voltage levels without timing skew. Use Value: Enables direct integration of ISO/IEC 7816-3 compliant cards into modern embedded hosts without discrete resistor networks or timing-compromising buffers. | Use Scenario: Bridging a 1.2V FPGA SPI master to a 3.3V flash memory or ADC peripheral in industrial data loggers. IC Role / Device Role / Timing Role: Four-channel VL→VCC translator handling MOSI, MISO, SCLK, and CS - maintains 8Mbps full-duplex timing integrity. Use Value: Guarantees sub-30ns propagation delay and <10ns channel-to-channel skew - preserves SPI setup/hold margins at maximum clock rate. |
| Cell-Phone Cradles | Portable POS Systems |
Use Scenario: Level-shifting USB UART or debug interface signals between a 1.8V baseband processor and 5V accessory port in docking stations. IC Role / Device Role / Timing Role: Unidirectional translator for TX/RX/CTS/RTS lines - handles asynchronous serial at up to 3Mbps with robust ESD immunity. Use Value: ±15kV HBM ESD protection on VCC-side pins eliminates external protection components - reduces BOM count and PCB area. | Use Scenario: Interfacing a 1.8V secure element (SE) with a 3.3V main processor in handheld point-of-sale terminals. IC Role / Device Role / Timing Role: Quad translator for SE communication lines (CLK, DATA, RST, IRQ) - supports secure boot and cryptographic handshake protocols. Use Value: Three-state output mode allows dynamic bus sharing with other peripherals - enables single SPI bus multiplexing without hardware switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0104RGER | Bidirectional auto-sensing design; no THREE-STATE pin; 1.2V–3.6V VL/VCC range; 100Mbps max (but not guaranteed) | Requires no direction control signal; unsuitable where strict unidirectional isolation is required (e.g., fault containment) | Select MAX3393EEUD+T when deterministic VL→VCC direction, three-state control, or ±15kV ESD on VCC I/Os are mandatory |
| SN74AVC4T245PWR | Direction-controlled bidirectional design; 1.2V–3.6V range; 32mA drive strength; no integrated ESD beyond standard HBM | Higher drive capability for heavy capacitive loads; lacks thermal shutdown and failsafe three-state behavior | Select MAX3393EEUD+T for thermally constrained environments or systems requiring automatic fault recovery without host intervention |
Compared with TXB0104RGER and SN74AVC4T245PWR, the MAX3393EEUD+T provides guaranteed 8Mbps timing, dedicated three-state control referenced to VL, and ±15kV HBM ESD protection - making it optimal for safety-critical, thermally sensitive, or externally routed signal paths in portable electronics.
Availability
MAX3393EEUD+T is available at Aetrix Electronics and suitable for SPI/I²C interface translation, smart card reader designs, and portable POS terminal development requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX3393EEUD+T 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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX3372E–MAX3393E product line was designed specifically for robust, low-power multivoltage system interfacing - targeting portable, battery-operated, and ESD-prone applications where reliability and voltage flexibility are critical.
FAQ
What is the maximum data rate supported by the MAX3393EEUD+T under standard operating conditions?
The MAX3393EEUD+T guarantees 8Mbps operation across its full specified voltage range (+1.2V ≤ VL ≤ VCC ≤ +5.5V) with 15pF capacitive load and driver output impedance ≤50Ω. Within narrower voltage domains - such as +1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V - it achieves up to 16Mbps, as confirmed in the Timing Characteristics table of the official datasheet. The MAX3393EEUD+T does not guarantee 16Mbps across all voltages.
Can the MAX3393EEUD+T translate signals bidirectionally, like the MAX3377E?
No, the MAX3393EEUD+T is a unidirectional level translator configured exclusively for VL→VCC signal flow - I/O VL1–VL4 serve as inputs, and I/O VCC1–VCC4 serve as corresponding outputs. Unlike bidirectional variants (e.g., MAX3377E), it lacks transmission-gate architecture and cannot reverse direction. This design prevents contention in fixed-direction interfaces such as SPI master-to-peripheral communication. The MAX3393EEUD+T datasheet explicitly confirms this unidirectional functionality.
How does the three-state output mode function on the MAX3393EEUD+T, and what is its impact on power consumption?
The THREE-STATE pin on the MAX3393EEUD+T is VL-referenced: pulling it low places all four I/O VCC and I/O VL lines in high-impedance state, disconnecting internal 10kΩ pull-ups and reducing total supply current to less than 1µA. This mode enables multidrop bus sharing and ultra-low-power sleep states. In normal operation, THREE-STATE must be tied to VL (logic-high). The MAX3393EEUD+T specification confirms <1µA current in this mode at +25°C.
Does the MAX3393EEUD+T provide ESD protection on both VL-side and VCC-side I/Os?
The MAX3393EEUD+T provides ±15kV Human Body Model (HBM) ESD protection specifically on the VCC-side I/Os (I/O VCC1–VCC4), as verified in the Absolute Maximum Ratings and Electrical Characteristics sections. VL-side I/Os (I/O VL1–VL4) are rated to standard HBM levels (±2kV typical), not ±15kV. This asymmetric protection reflects its intended use: VCC-side signals are more likely to be exposed to external connectors and handling - a key design distinction confirmed in the datasheet's ESD Protection section.
What package type and pin count does the MAX3393EEUD+T use, and is it RoHS compliant?
The MAX3393EEUD+T uses a 14-pin TSSOP package (3.0mm × 4.4mm body, 0.65mm pitch) with exposed thermal pad. It is RoHS compliant and lead-free, as documented in Maxim's official packaging information and material declarations. The "+T" suffix denotes tape-and-reel packaging for automated assembly, and the device meets JEDEC standards for moisture sensitivity level (MSL-1).
MAX3393EEUD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- 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)
MAX3393EEUD+T FAQ
1.How can I place an order for MAX3393EEUD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3393EEUD+T 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 MAX3393EEUD+T reliable?
The price and inventory of MAX3393EEUD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3393EEUD+T is usually 5 days.
3.What payment methods are accepted for MAX3393EEUD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3393EEUD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3393EEUD+T?
MAX3393EEUD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3393EEUD+T 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 MAX3393EEUD+T?
For technical support, including MAX3393EEUD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3393EEUD+T requirements.
6.How does Aetrix verify that MAX3393EEUD+T is sourced from the original manufacturer or authorized distributors?
All MAX3393EEUD+T 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 MAX3393EEUD+T meets industry standards.
7.What is the process for return or replacement of MAX3393EEUD+T?
All MAX3393EEUD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3393EEUD+T, 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 MAX3393EEUD+T part is unused and in its original packaging.
Return procedure for MAX3393EEUD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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