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Analog Devices Inc./Maxim Integrated MAX3370ELT+
- Part No.:
- MAX3370ELT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3370ELT+.pdf
- Description:
- IC INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,885
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Product details
Overview
The MAX3370ELT+ from Maxim Integrated is a bidirectional logic-level translator IC designed for interfacing low-voltage ASICs (≥1.6V) with higher-voltage systems (up to +5.5V). It supports dual-supply operation (VCC = +2.5V to +5.5V, VL = +1.6V to +5.5V), delivers 2Mbps data rate with 10pF load under push-pull drive, and features internal 10kΩ pull-up resistors on both I/O VL and I/O VCC pins-enabling seamless I²C, SPI, and MICROWIRE level translation in portable communication devices.
For engineers reviewing the MAX3370ELT+ datasheet, MAX3370ELT+ pinout, MAX3370ELT+ application, or MAX3370ELT+ equivalent, this device is selected for low-power, space-constrained multivoltage signal bridging where shutdown functionality is not required and µDFN-6 packaging enables high-density PCB layouts.
Technical Context
The MAX3370ELT+ implements a passive-bidirectional architecture using internal MOSFET-based translation cells with integrated 10kΩ pull-up resistors on both I/O VL and I/O VCC terminals. It requires no direction-control signal and operates across asymmetric voltage domains where VL ≤ VCC.
It supports rail-to-rail signal translation with propagation delays as low as 50ns (low-to-high, CL = 10pF, driving I/O VCC) and rise/fall times ≤100ns under optimal loading-enabled by an internal speed-up one-shot circuit that activates during low-to-high transitions to reduce rise time and improve duty cycle fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VL Supply Range | +1.6V to +5.5V - enables interface with 1.8V/2.5V/3.3V/5V logic domains |
| VCC Supply Range | +2.5V to +5.5V - ensures compatibility with standard microcontroller I/O rails |
| Max Data Rate | 2Mbps with 10pF load (push-pull) - supports high-speed SPI clocking up to 2MHz |
| Quiescent Current | <100µA total (IQVCC + IQVL) - suitable for battery-powered portable systems |
| I/O Pull-Up Resistance | 10kΩ on both I/O VL and I/O VCC - eliminates need for external pull-ups in I²C applications |
| Propagation Delay | 50ns (tPD-VL-LH, CL = 10pF) - preserves timing margins in 2Mbps digital interfaces |
| Operating Temp | –40°C to +85°C - qualified for industrial and consumer portable equipment environments |
Pinout & Package
The MAX3370ELT+ is housed in a 6-pin µDFN package (1mm × 1.5mm, 0.5mm pitch) with wettable flanks, optimized for automated optical inspection and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VL | Logic-side supply rail - sets low-voltage domain reference (1.6V–5.5V); must be ≤ VCC |
| 2 | GND | Analog/digital ground reference - common return path for both supply domains |
| 3 | I/O VL | Bidirectional signal terminal referenced to VL - connects to low-voltage controller or peripheral |
| 4 | I/O VCC | Bidirectional signal terminal referenced to VCC - connects to higher-voltage bus or host |
| 5 | VCC | High-side supply rail - powers internal translation circuitry (2.5V–5.5V) |
| 6 | N.C. | No internal connection - left unconnected per datasheet; no PCB trace required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional translation without direction control | Eliminates external control logic and simplifies firmware for I²C/SPI data lines |
| Integrated 10kΩ pull-up resistors on both I/Os | Reduces BOM count and board area in I²C applications; supports open-drain drivers |
| Speed-up circuit for low-to-high transitions | Reduces tR and tPD by >50% vs. conventional translators, improving signal integrity at 2Mbps |
| 1.6V minimum VL operation | Enables direct interface with 1.8V and 1.6V ASICs, including modern ultra-low-power microcontrollers |
| µDFN-6 (1mm × 1.5mm) footprint | Occupies 40% less area than SC70-5; supports miniaturized designs like smart card readers and cradles |
Applications
| Smart Card Readers | SPI/MICROWIRE Level Translation |
|---|---|
|
Use Scenario: Interfacing a 1.8V smart card controller with a 3.3V secure element or host processor. IC Role / Device Role / Timing Role: Bidirectional level shifter on I/O and CLK lines, preserving signal timing and eliminating external pull-ups. Use Value: Enables full-speed ISO/IEC 7816-3 compliant communication without voltage-domain mismatch errors or added latency. |
Use Scenario: Bridging a 1.6V FPGA SPI master to a 5V DAC or sensor with SPI interface. IC Role / Device Role / Timing Role: Translates MOSI, MISO, SCLK, and CS signals between asymmetric voltage domains while maintaining 2Mbps throughput. Use Value: Achieves deterministic timing with <50ns propagation delay, avoiding setup/hold violations in high-speed SPI configurations. |
| Cell Phone Hands-Free Kits | Low-Voltage ASIC Level Translation |
|
Use Scenario: Connecting a 1.8V Bluetooth baseband IC to a 3.3V audio codec or power management IC. IC Role / Device Role / Timing Role: Translates UART, I²C, and GPIO control signals bidirectionally with minimal quiescent current. Use Value: Reduces system standby power by limiting supply current to <100µA while supporting real-time audio control signaling. |
Use Scenario: Level-shifting between a 1.6V SoC and legacy 2.5V/3.3V peripherals in portable POS terminals. IC Role / Device Role / Timing Role: Provides voltage-domain isolation and signal integrity for parallel data buses and control lines. Use Value: Eliminates risk of latch-up or overvoltage damage when mixing sub-2V logic with higher-voltage peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | Active-drive architecture; requires external pull-ups; supports 1.2V–3.6V VL and 1.65V–5.5V VCC; no internal speed-up circuit | Higher static current (~10µA per channel); lacks low-delay optimization for 2Mbps I/O | Select when needing 1.2V compatibility or multi-channel integration (2-channel vs. MAX3370ELT+'s single-channel) |
| SN74AVC4T245PW | Direction-controlled (DIR pin required); 3-state outputs; supports 1.2V–3.6V on A/B sides; no internal pull-ups | Requires firmware-managed direction control; unsuitable for true bidirectional protocols like I²C without external logic | Select for unidirectional or direction-switched applications where precise output control outweighs simplicity |
Compared with TXS0102DCUR and SN74AVC4T245PW, the MAX3370ELT+ offers zero-direction-control operation, integrated pull-ups, and speed-up circuitry-making it uniquely suited for compact, low-power I²C/SPI bridges where layout area and firmware overhead are critical constraints.
Availability
The MAX3370ELT+ is available at Aetrix Electronics and suitable for portable communication devices, smart card readers, and cell phone hands-free kits requiring stable component supply across extended production lifecycles.
Supply support for MAX3370ELT+ 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 ICs for industrial, communications, and consumer applications.
The MAX3370ELT+ belongs to Maxim's logic-level translation product line, engineered specifically for space-constrained, multivoltage portable electronics where passive-bidirectional operation and µDFN packaging deliver design efficiency.
FAQ
What is the maximum data rate supported by the MAX3370ELT+?
The MAX3370ELT+ supports up to 2Mbps with a 10pF load under push-pull drive conditions, 1Mbps with a 50pF load, and 500kbps with a 30pF load under open-drain drive. These rates are validated per the datasheet's Electrical Characteristics table and confirmed in typical operating waveforms. The MAX3370ELT+ achieves these speeds using its internal speed-up circuit, which reduces low-to-high propagation delay to as low as 50ns.
Does the MAX3370ELT+ support shutdown mode?
No, the MAX3370ELT+ does not include a shutdown function. Shutdown capability is exclusive to the MAX3371 variant (e.g., MAX3371ELT+T), which adds a SHDN pin. The MAX3370ELT+ has no SHDN pin and draws <100µA quiescent current continuously-making it ideal for always-on signal paths where power gating is unnecessary.
Can the MAX3370ELT+ translate between 1.6V and 5V logic levels?
Yes, the MAX3370ELT+ supports VL from +1.6V to +5.5V and VCC from +2.5V to +5.5V, with the constraint that VL must not exceed VCC. Therefore, translating from 1.6V (VL) to 5V (VCC) is fully supported and explicitly validated in the datasheet's Absolute Maximum Ratings and Electrical Characteristics sections.
Is external pull-up resistance required when using the MAX3370ELT+ for I²C?
No, external pull-ups are not required. The MAX3370ELT+ integrates 10kΩ pull-up resistors on both I/O VL and I/O VCC pins, satisfying standard I²C bus requirements for 100kHz and 400kHz modes. This eliminates two external components per channel and reduces PCB footprint-confirmed in the Applications Information section of the MAX3370ELT+ datasheet.
What package type is used for the MAX3370ELT+?
The MAX3370ELT+ uses a 6-pin µDFN package measuring 1mm × 1.5mm with 0.5mm pitch and wettable flanks. This package is distinct from the SC70 variants (e.g., MAX3370EXK+T) and is specified in the Ordering Information table with top mark "KX". Its compact size supports high-density routing in portable electronics such as smart card readers and handheld POS terminals.
MAX3370ELT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Translator Type:
- -
- Channel Type:
- -
- Number of Circuits:
- -
- Channels per Circuit:
- -
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- -
- Data Rate:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX3370ELT+ FAQ
1.How can I place an order for MAX3370ELT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3370ELT+ 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 MAX3370ELT+ reliable?
The price and inventory of MAX3370ELT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3370ELT+ is usually 5 days.
3.What payment methods are accepted for MAX3370ELT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3370ELT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3370ELT+?
MAX3370ELT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3370ELT+ 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 MAX3370ELT+?
For technical support, including MAX3370ELT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3370ELT+ requirements.
6.How does Aetrix verify that MAX3370ELT+ is sourced from the original manufacturer or authorized distributors?
All MAX3370ELT+ 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 MAX3370ELT+ meets industry standards.
7.What is the process for return or replacement of MAX3370ELT+?
All MAX3370ELT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX3370ELT+, 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 MAX3370ELT+ part is unused and in its original packaging.
Return procedure for MAX3370ELT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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