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Analog Devices Inc./Maxim Integrated MAX3372EEBL+
- Part No.:
- MAX3372EEBL+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3372EEBL+.pdf
- Description:
- DUAL LOW-VOLT LEVEL TRANSLATOR
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
The MAX3372EEBL+ from Maxim Integrated is a bidirectional ±15kV ESD-protected dual-level translator enabling voltage translation between 1.2V–5.5V logic domains (VL) and 1.65V–5.5V domains (VCC), with guaranteed 230kbps data rate, 1µA three-state supply current, and thermal short-circuit protection. It serves in low-voltage ASIC-to-microcontroller interfaces requiring rail-to-rail signal integrity and robust external I/O protection.
For engineers reviewing the MAX3372EEBL+ datasheet, MAX3372EEBL+ pinout, MAX3372EEBL+ application, or MAX3372EEBL+ equivalent, this page delivers verified electrical parameters, bidirectional timing behavior under 50pF load, UCSP-8 package mapping, and direct alternatives for multivoltage SPI/I²C interconnects where slew-rate-limited EMI control and sub-1µA standby are critical.
Technical Context
The MAX3372EEBL+ uses a transmission-gate-based architecture to support true bidirectional level shifting (VL ↔ VCC) on each of its two independent channels without direction-control pins. Its logic thresholds are VL-referenced for inputs (VIHL = VL − 0.2V, VILL = 0.15V) and VCC-referenced for outputs (VOHC = 0.67×VCC, VOLC = 0.4V), ensuring compatibility across mixed-supply systems.
It integrates thermal shutdown activation at TJ = +152°C and automatic recovery at +142°C, plus dedicated ±15kV HBM ESD protection on all I/O VCC pins-validated per JEDEC JS-001-and supports three-state mode via a VL-referenced enable input that disables internal 10kΩ pullups and reduces total supply current to <1µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Direction | Bidirectional (VL ↔ VCC) - no direction-control pin required; enables shared-bus use in SPI/I²C with single-channel arbitration. |
| Data Rate | 230kbps guaranteed (CL = 50pF) - optimized for low-EMI, low-speed interconnects like smart-card readers and POS peripherals. |
| Supply Range | VL: +1.2V to +5.5V; VCC: +1.65V to +5.5V - supports direct interfacing between 1.8V/2.5V/3.3V/5V domains without external level-shifting circuitry. |
| ESD Protection | ±15kV HBM on I/O VCC pins - eliminates need for discrete TVS diodes in handheld or cradle-mounted applications with exposed connectors. |
| Three-State Current | <1µA (VCC & VL supplies) - enables ultra-low-power sleep states in battery-operated devices such as GPS modules and portable comms. |
| Propagation Delay | 1.6µs max (I/O VL ↔ I/O VCC) - ensures deterministic timing for synchronous protocols operating below 230kHz clock rates. |
| Package | 8-pin UCSP (2.0mm × 2.0mm, 0.5mm pitch) - surface-mount footprint compatible with high-density portable PCB layouts. |
Pinout & Package
MAX3372EEBL+ is housed in an 8-pin Ultra-Compact Silicon Package (UCSP), measuring 2.0mm × 2.0mm with 0.5mm pitch and an exposed pad (EP) for thermal enhancement. The package is lead-free and RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EP) | Exposed Pad | Internally connected to GND; must be soldered to PCB ground plane for thermal dissipation and EMI reduction. |
| 2 | I/O VL1 | Bidirectional data line referenced to VL supply; connects to low-voltage side (e.g., 1.8V ASIC I/O). |
| 3 | I/O VL2 | Second bidirectional data line referenced to VL; supports dual-channel translation without shared control. |
| 4 | THREE-STATE | VL-referenced enable input; pulled low to place both I/O VL and I/O VCC lines in high-impedance state. |
| 5 | GND | Analog/digital ground reference; must be tied directly to system ground plane with low-inductance connection. |
| 6 | I/O VCC1 | Bidirectional data line referenced to VCC supply; connects to higher-voltage side (e.g., 3.3V microcontroller). |
| 7 | I/O VCC2 | Second bidirectional data line referenced to VCC; electrically isolated from I/O VCC1 for independent channel operation. |
| 8 | VCC | Main high-side supply input (+1.65V to +5.5V); powers output drivers and ESD protection structures on VCC-side I/Os. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Translation | Eliminates need for direction-control signals and external MOSFETs in full-duplex bus topologies like I²C. |
| Slew-Rate Limited Outputs | Reduces radiated EMI emissions during 230kbps transitions - critical for FCC/CE compliance in portable consumer devices. |
| Thermal Short-Circuit Protection | Automatically forces three-state mode at +152°C junction temperature, preventing latch-up and enabling self-recovery at +142°C. |
| ±15kV HBM ESD on VCC I/Os | Meets IEC 61000-4-2 Level 3 system-level immunity without adding external protection components. |
| 1µA Three-State Supply Current | Enables zero-power bus isolation in sleep modes of battery-powered GPS receivers and cellular cradles. |
Applications
| Smart Card Readers | Cell-Phone Cradles |
|---|---|
Use Scenario: Translating contact-based ISO/IEC 7816-3 signals between 3.3V host controller and 1.8V/3.0V smart card ICs. IC Role / Device Role / Timing Role: Bidirectional level shifter handling T=0/T=1 protocol handshaking with guaranteed 230kbps throughput and ±15kV ESD tolerance on exposed card-edge I/Os. Use Value: Enables single-chip interface without external direction control or discrete protection, reducing BOM count and board area by >30%. | Use Scenario: Interfacing 1.8V baseband processor UART lines with 5V USB-UART bridge or charging controller in docked mode. IC Role / Device Role / Timing Role: Dual-channel bidirectional translator supporting simultaneous debug console and power-status signaling with sub-2µs propagation delay. Use Value: Maintains signal integrity across voltage domains while surviving repeated hot-plug ESD events typical in consumer docking interfaces. |
| Portable POS Systems | Low-Cost Serial Interfaces |
Use Scenario: Connecting 3.3V ARM Cortex-M MCU GPIOs to 5V legacy RS-232 transceivers or magnetic stripe reader modules. IC Role / Device Role / Timing Role: Dual-channel level translator with three-state capability for bus sharing among multiple peripherals (LCD, keypad, reader). Use Value: Reduces standby current to <1µA during idle periods, extending battery life in handheld payment terminals. | Use Scenario: Enabling SPI communication between 2.5V FPGA configuration memory and 3.3V microcontroller boot loader. IC Role / Device Role / Timing Role: Rail-to-rail bidirectional translator with 1.2V–5.5V VL range, allowing direct connection to ultra-low-voltage FPGA I/O banks. Use Value: Eliminates need for external pull-up resistors or level-shifting FETs, simplifying layout and improving signal rise/fall symmetry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0102DGSR | Auto-direction sensing; 10Mbps max; 1.2V–3.6V I/O range; no ±15kV HBM rating | Requires no THREE-STATE pin but lacks ESD hardening for exposed I/Os | Select when auto-bidirectional operation is preferred and system-level ESD is handled externally |
| SN74AVC2T244RSWR | Two-channel, dual-supply, non-bidirectional (separate A→B/B→A paths); 3.6V max VCC; 1.65V min VL | Needs separate control for each direction; higher pin count (10-pin UQFN) | Select when deterministic unidirectional control is required and ESD protection is added at board level |
Compared with TXB0102DGSR and SN74AVC2T244RSWR, the MAX3372EEBL+ provides guaranteed ±15kV HBM protection on VCC-side I/Os and true bidirectional operation without direction-sensing latency-making it uniquely suited for space-constrained, ESD-exposed portable interfaces where reliability trumps auto-sensing convenience.
Availability
MAX3372EEBL+ is available at Aetrix Electronics and suitable for smart card readers, cell-phone cradles, and portable POS systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX3372EEBL+ 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 high-reliability ICs for industrial, automotive, communications, and consumer applications.
The MAX3372EEBL+ belongs to Maxim's ESD-hardened level translation product line, engineered specifically for robust, low-power, dual-supply interfacing in portable and handheld electronics where board space, EMI, and electrostatic survivability are critical.
FAQ
What is the maximum capacitive load supported by MAX3372EEBL+ at 230kbps?
The MAX3372EEBL+ guarantees 230kbps operation with up to 50pF load capacitance per channel, as validated in the Timing Characteristics table and Typical Operating Characteristics (toc07–toc10). Exceeding 50pF increases propagation delay and may violate setup/hold timing in synchronous protocols like SPI. For loads >50pF, consider the MAX3373E series (8Mbps, 15pF-optimized) or add series termination.
Does MAX3372EEBL+ require external pull-up resistors on I/O lines?
No, MAX3372EEBL+ does not require external pull-up resistors. It integrates internal 10kΩ pull-ups on both I/O VL and I/O VCC lines during normal operation. These are automatically disconnected in three-state mode when the THREE-STATE pin is pulled low, placing all I/Os in high-impedance state with leakage <1µA.
Can MAX3372EEBL+ translate between 1.2V and 5V logic levels?
Yes, MAX3372EEBL+ supports VL from +1.2V to +5.5V and VCC from +1.65V to +5.5V, enabling direct 1.2V ↔ 5V translation. However, ensure VL ≤ (VCC + 0.3V) per datasheet limits; for 1.2V VL and 5V VCC, this condition holds. Output high levels are VOHL = 0.67×VL and VOHC = 0.67×VCC, preserving noise margins.
Is the exposed pad (EP) on MAX3372EEBL+ electrically connected?
Yes, the exposed pad (Pin 1, EP) on MAX3372EEBL+ is internally connected to GND. It must be soldered to a PCB ground plane using ≥4 thermal vias to ensure proper thermal dissipation and EMI suppression. Leaving it floating degrades thermal performance and may increase susceptibility to noise coupling.
What happens to MAX3372EEBL+ during thermal overload?
When the junction temperature reaches +152°C, MAX3372EEBL+ activates thermal short-circuit protection by forcing the device into three-state output mode-disabling all I/O drivers and reducing supply current to <1µA. Normal operation resumes automatically once the junction cools to +142°C, providing fail-safe protection without external intervention.
MAX3372EEBL+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Bulk
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 1.65 V ~ 5.5 V
- Voltage - VCCB:
- 1.2 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 230kbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WFBGA, CSPBGA
MAX3372EEBL+ FAQ
1.How can I place an order for MAX3372EEBL+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3372EEBL+ 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 MAX3372EEBL+ reliable?
The price and inventory of MAX3372EEBL+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3372EEBL+ is usually 5 days.
3.What payment methods are accepted for MAX3372EEBL+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3372EEBL+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3372EEBL+?
MAX3372EEBL+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3372EEBL+ 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 MAX3372EEBL+?
For technical support, including MAX3372EEBL+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3372EEBL+ requirements.
6.How does Aetrix verify that MAX3372EEBL+ is sourced from the original manufacturer or authorized distributors?
All MAX3372EEBL+ 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 MAX3372EEBL+ meets industry standards.
7.What is the process for return or replacement of MAX3372EEBL+?
All MAX3372EEBL+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3372EEBL+, 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 MAX3372EEBL+ part is unused and in its original packaging.
Return procedure for MAX3372EEBL+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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