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Analog Devices Inc./Maxim Integrated MAX3377EEUD+
- Part No.:
- MAX3377EEUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3377EEUD+.pdf
- Description:
- IC TRANSLATOR BIDIR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
The MAX3377EEUD+ from Maxim Integrated is a quad bidirectional logic-level translator IC enabling voltage-domain bridging between low-voltage (VL = +1.2V to +5.5V) and higher-voltage (VCC = +1.65V to +5.5V) digital systems. It supports guaranteed 230kbps data rate, ±15kV HBM ESD protection on VCC-side I/Os, 1μA three-state supply current, and operates from -40°C to +85°C. It is used in portable communication devices requiring robust, low-power level shifting across mixed-voltage interfaces.
For engineers reviewing the MAX3377EEUD+ datasheet, MAX3377EEUD+ pinout, MAX3377EEUD+ application, or MAX3377EEUD+ equivalent, key selection considerations include its bidirectional VL ↔ VCC translation capability, 230kbps guaranteed timing, TDFN-14 (3mm × 3mm) package with exposed pad, thermal short-circuit protection, and slew-rate limiting for EMI reduction.
Technical Context
The MAX3377EEUD+ uses a transmission-gate-based architecture to enable true bidirectional level translation on all four channels without direction-control pins. Its logic thresholds are referenced to VL (VIHL = VL − 0.2V, VILL = 0.15V) and VCC (VIHC = VCC − 0.4V, VILC = 0.15V), ensuring reliable switching across wide voltage combinations.
It integrates a dedicated THREE-STATE input (logic-referenced to VL) that forces all I/Os into high-impedance mode with <1μA total supply current. Thermal shutdown activates at TJ = +152°C and recovers at +142°C, providing fault resilience in sustained overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Direction | Bidirectional (VL ↔ VCC) - enables shared bus operation without external direction control. |
| Guaranteed Data Rate | 230kbps - verified timing performance under full operating voltage range (VL = +1.2V to +5.5V, VCC = +1.65V to +5.5V). |
| Supply Voltage Range | VL: +1.2V to +5.5V; VCC: +1.65V to +5.5V - supports interfacing ultra-low-voltage ASICs/PLDs with 3.3V/5V systems. |
| ESD Protection | ±15kV HBM on I/O VCC pins - eliminates need for external TVS diodes in handheld/portable designs. |
| Three-State Supply Current | <1μA (VCC + VL combined) - enables power gating in battery-powered systems without signal leakage. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and consumer portable equipment environments. |
| Quiescent Supply Current | 130µA typical from VCC, 16µA typical from VL - enables always-on interface monitoring with minimal battery drain. |
Pinout & Package
MAX3377EEUD+ is housed in a 14-pin TDFN-EP package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (EP) connected to GND. Pin numbering follows standard top-view orientation with pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | High-side supply input (+1.65V to +5.5V); powers VCC-referenced I/O buffers and internal bias circuitry. |
| 2 | I/O VCC1 | Channel 1 high-side I/O - bidirectionally translates signals between VL and VCC domains. |
| 3 | I/O VCC2 | Channel 2 high-side I/O - electrically isolated from other channels; supports independent voltage translation. |
| 4 | N.C. | No internal connection - must be left floating or tied to GND per layout best practices. |
| 5 | N.C. | No internal connection - no routing or loading required. |
| 6 | I/O VL2 | Channel 2 low-side I/O - referenced to VL; forms bidirectional pair with I/O VCC2. |
| 7 | I/O VL1 | Channel 1 low-side I/O - referenced to VL; forms bidirectional pair with I/O VCC1. |
| 8 | VL | Low-side supply input (+1.2V to +5.5V); sets logic thresholds and powers VL-referenced circuitry. |
| 9 | I/O VCC3 | Channel 3 high-side I/O - supports third independent bidirectional translation path. |
| 10 | GND | Analog/digital ground reference - must be low-impedance connection to system ground plane. |
| 11 | I/O VL4 | Channel 4 low-side I/O - completes fourth bidirectional channel; referenced to VL. |
| 12 | I/O VL3 | Channel 3 low-side I/O - pairs with I/O VCC3 for third translation path. |
| 13 | I/O VCC4 | Channel 4 high-side I/O - pairs with I/O VL4 to form fourth bidirectional channel. |
| 14 | THREE-STATE | Active-low enable for high-impedance output mode; referenced to VL logic levels (VIH = VL − 0.2V). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional transmission-gate architecture | Eliminates need for direction-control signals and simplifies PCB routing in I²C/SPI multidrop buses. |
| Slew-rate limiting | Reduces EMI emissions by controlling edge rates - critical for FCC/CE compliance in portable radios and GPS modules. |
| Thermal short-circuit protection | Automatically enters three-state mode at +152°C junction temperature - prevents latch-up and enables self-recovery. |
| 1μA three-state supply current | Enables zero-power bus isolation in sleep modes of POS terminals and smart card readers. |
| ±15kV HBM ESD on VCC I/Os | Meets IEC 61000-4-2 Level 3 system-level ESD immunity without external protection components. |
Applications
| Smart Card Readers | Portable POS Systems |
|---|---|
|
Use Scenario: Interfacing 1.8V smart card controller with 3.3V host MCU over ISO 7816-3 compliant serial bus. IC Role / Device Role / Timing Role: Bidirectional level translator ensuring correct voltage thresholds for card reset, clock, and I/O lines. Use Value: Eliminates discrete resistor-divider networks while maintaining 230kbps transfer speed and ±15kV ESD robustness against card insertion events. |
Use Scenario: Connecting 1.2V barcode scanner ASIC to 5V payment processor in handheld retail terminal. IC Role / Device Role / Timing Role: Quad-channel voltage translator supporting simultaneous UART, GPIO, and status line level shifting. Use Value: Reduces BOM count by replacing four discrete translators; 1μA three-state mode enables deep-sleep power management. |
| Cell-Phone Cradles | GPS Modules |
|
Use Scenario: Bridging 1.8V USB PHY transceiver to 3.3V system controller in docking station base. IC Role / Device Role / Timing Role: Bidirectional data translator for USB D+/D− auxiliary control lines (not full-speed USB). Use Value: Slew-rate limiting suppresses radiated emissions from cradle-to-phone cable; TDFN-14 footprint saves space in compact enclosures. |
Use Scenario: Level-shifting NMEA 0183 serial output (3.3V) from GPS receiver to 1.8V application processor UART. IC Role / Device Role / Timing Role: Unidirectional (VCC → VL) or bidirectional translator depending on flow control requirements. Use Value: Guaranteed 230kbps timing ensures reliable parsing of high-update-rate GNSS position packets; -40°C to +85°C rating supports automotive-grade operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0104RUTR | 4-channel auto-direction sensing; 1.2V–3.6V VL/VCC range; no thermal protection; 100Mbps max (but requires careful load tuning). | Best suited for high-speed I²C/SPI where direction detection is preferred over explicit control; lacks ±15kV ESD rating. | Select when system-level ESD is handled externally and >230kbps speed is required with minimal board space. |
| SN74AVC4T245PW | 4-channel, direction-controlled; 1.2V–3.6V; 3.3V-tolerant I/Os; no integrated ESD beyond standard HBM; 32mA drive strength. | Requires external direction pin and pull-up resistors; higher drive capability suits noisy industrial backplanes. | Choose when driving heavy capacitive loads (>50pF) or interfacing with legacy 3.3V-only peripherals lacking ESD hardening. |
Compared with TXB0104RUTR and SN74AVC4T245PW, the MAX3377EEUD+ provides guaranteed 230kbps timing with built-in ±15kV HBM ESD and thermal shutdown - making it optimal for cost-sensitive, space-constrained portable designs where reliability under real-world handling stress is critical.
Availability
MAX3377EEUD+ is available at Aetrix Electronics and suitable for portable communication devices, smart card readers, and GPS modules requiring stable component supply with full production traceability and long-term lifecycle support.
Supply support for MAX3377EEUD+ 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 high-reliability interface solutions for industrial, automotive, and portable electronics.
The MAX3372E–MAX3379E family was designed specifically for robust, low-power bidirectional level translation in battery-operated and ESD-prone environments - emphasizing integration, reliability, and ease of use over raw speed.
FAQ
What is the maximum data rate supported by the MAX3377EEUD+?
The MAX3377EEUD+ guarantees 230kbps operation across its full specified voltage range (VL = +1.2V to +5.5V, VCC = +1.65V to +5.5V). While higher speeds up to 16Mbps are possible under narrow voltage conditions (e.g., +1.8V ≤ VL ≤ VCC ≤ +2.5V), only the 230kbps rating is production-tested and guaranteed for all units. The MAX3377EEUD+ does not support 8Mbps operation - that specification applies only to the MAX3378E/MAX3379E variants.
Can the MAX3377EEUD+ translate between 1.2V and 5V logic domains?
Yes, the MAX3377EEUD+ supports VL as low as +1.2V and VCC as high as +5.5V, enabling direct translation between 1.2V ASICs and 5V microcontrollers. However, ensure VL ≤ (VCC + 0.3V) during steady-state operation; transient violations during power-up are tolerated but must remain within absolute maximum ratings (I/O VCC ≤ VCC + 0.3V).
Does the MAX3377EEUD+ require external pull-up resistors on I/O lines?
No - the MAX3377EEUD+ does not integrate internal pull-up resistors on I/O VL or I/O VCC lines. Unlike some competing translators, it relies on external pull-ups (if needed) for open-drain or wired-AND bus configurations. Its bidirectional operation is achieved purely through transmission-gate switching, not passive termination.
How does the THREE-STATE pin function on the MAX3377EEUD+?
The THREE-STATE pin on the MAX3377EEUD+ is an active-low, VL-referenced control input. Pulling it low places all eight I/Os (four VL-side and four VCC-side) into high-impedance state and reduces total supply current to <1μA. For normal operation, connect THREE-STATE to VL (not VCC) to meet its VIH threshold of VL − 0.2V.
Is thermal protection active during three-state mode on the MAX3377EEUD+?
Yes - thermal short-circuit protection remains fully functional in three-state mode. If junction temperature reaches +152°C, the MAX3377EEUD+ will force itself into three-state regardless of the external THREE-STATE pin state. Recovery occurs automatically when temperature drops to +142°C, restoring normal bidirectional operation without requiring system intervention.
MAX3377EEUD+ 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:
- Bidirectional
- 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)
MAX3377EEUD+ FAQ
1.How can I place an order for MAX3377EEUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3377EEUD+ 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 MAX3377EEUD+ reliable?
The price and inventory of MAX3377EEUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3377EEUD+ is usually 5 days.
3.What payment methods are accepted for MAX3377EEUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3377EEUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3377EEUD+?
MAX3377EEUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3377EEUD+ 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 MAX3377EEUD+?
For technical support, including MAX3377EEUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3377EEUD+ requirements.
6.How does Aetrix verify that MAX3377EEUD+ is sourced from the original manufacturer or authorized distributors?
All MAX3377EEUD+ 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 MAX3377EEUD+ meets industry standards.
7.What is the process for return or replacement of MAX3377EEUD+?
All MAX3377EEUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3377EEUD+, 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 MAX3377EEUD+ part is unused and in its original packaging.
Return procedure for MAX3377EEUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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