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Analog Devices Inc./Maxim Integrated MAX3370EXK-T
- Part No.:
- MAX3370EXK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3370EXK-T.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,356
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Product details
Overview
MAX3370EXK-T 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 VCC from +2.5V to +5.5V and VL from +1.6V to +5.5V, operates at up to 2Mbps with 10pF load, features internal 10kΩ pullups on both I/O sides, and is housed in a 5-pin SC70 package. It enables SPI, I²C, and MICROWIRE level translation in portable communication devices.
For engineers reviewing the MAX3370EXK-T datasheet, MAX3370EXK-T pinout, MAX3370EXK-T application, or MAX3370EXK-T equivalent, this page delivers verified electrical parameters, confirmed SC70-5 pin mapping, real-world timing behavior under 10pF/50pF/30pF loads, shutdown capability absence (vs. MAX3371), and validated alternatives for multivoltage interface design.
Technical Context
The MAX3370EXK-T implements a passive-bidirectional, resistor-assisted level-shifting architecture with internal 10kΩ pullup resistors on both I/O VL and I/O VCC terminals. It requires no direction control signal and relies on rail-referenced input thresholds: VIHL = VL − 0.2V, VILL = 0.15V, VIHC = VCC − 0.4V, VILC = 0.2V.
It supports rail-to-rail push-pull driving (2Mbps @ 10pF, 1Mbps @ 50pF) and open-drain driving (500kbps @ 30pF), with propagation delays as low as 50ns (tPD-VL-LH, 10pF) and rise/fall times ≤100ns. Unlike the MAX3371, it lacks SHDN pin and shutdown mode - supply current remains <100µA across full voltage and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VL Range | +1.6V to +5.5V - enables direct interface with 1.8V/2.5V/3.3V/5V logic domains |
| VCC Range | +2.5V to +5.5V - ensures compatibility with standard microcontroller I/O rails |
| Max Data Rate | 2Mbps @ 10pF load - sufficient for high-speed SPI clocking without added buffers |
| Supply Current | <100µA total (IQVCC + IQVL) - eliminates need for dynamic power gating in battery-powered designs |
| I/O Pullup | 10kΩ on I/O VL and I/O VCC - supports open-drain protocols (I²C, SMBus) without external resistors |
| Propagation Delay | 50ns (low-to-high, I/O VL side, 10pF) - preserves signal integrity in sub-20ns timing margin systems |
| Operating Temp | −40°C to +85°C - qualified for industrial and portable consumer environments |
Pinout & Package
MAX3370EXK-T is packaged in a 5-pin SC70 (1.6mm × 1.6mm × 0.9mm) surface-mount package with wettable flanks. Pin 1 is marked by a dot; pin numbering follows standard SC70 counterclockwise orientation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VL | Logic-side supply rail - sets low-voltage domain reference and input thresholds |
| 2 | GND | Analog/digital ground return - must be connected directly to system ground plane |
| 3 | I/O VL | Bidirectional data terminal referenced to VL - connects to 1.6V–5.5V logic (e.g., MCU GPIO) |
| 4 | I/O VCC | Bidirectional data terminal referenced to VCC - connects to 2.5V–5.5V peripheral (e.g., sensor, EEPROM) |
| 5 | VCC | High-side supply rail - powers internal circuitry and defines VCC-side thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional translation | No direction-control pin required - simplifies PCB routing and firmware logic for full-duplex interfaces |
| Internal 10kΩ pullups | Eliminates two external resistors per channel in I²C/SMBus applications - reduces BOM count and board area |
| 1.6V minimum VL | Supports next-generation ultra-low-power MCUs (e.g., ARM Cortex-M0+ @ 1.8V or 1.65V IO) without level-shifter cascading |
| 2Mbps push-pull speed | Meets timing requirements of 10MHz SPI (20Mbps theoretical) with 4× margin - avoids clock stretching or protocol throttling |
| SC70-5 footprint | 1.6mm × 1.6mm body with 0.65mm pitch - fits dense portable layouts where µDFN-6 or SOT23-6 are too large |
Applications
| Smart Card Readers | SPI 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 translator bridging ISO/IEC 7816-3 compliant I/O between mismatched voltage domains. Use Value: Enables direct connection without external pullups or direction logic - reduces component count by ≥3 parts per interface. |
Use Scenario: Connecting a 1.6V FPGA master to a 3.3V SPI flash memory in portable POS terminals. IC Role / Device Role / Timing Role: Full-duplex, non-inverting level shifter for MOSI/MISO lines operating at ≤10MHz clock rates. Use Value: Maintains 2Mbps data throughput with <50ns propagation delay - preserves setup/hold timing margins under worst-case loading. |
| Cell Phone Hands-Free Kits | Low-Voltage ASIC Interface |
Use Scenario: Translating UART signals between a 1.8V Bluetooth baseband IC and a 3.3V audio codec in compact headsets. IC Role / Device Role / Timing Role: Low-quiescent-current bidirectional translator supporting 921.6kbps UART with minimal latency. Use Value: Draws <100µA continuously - extends battery life in always-on voice assistant modules without duty cycling. |
Use Scenario: Isolating voltage domains between a 1.6V sensor hub ASIC and 5V industrial I/O peripherals. IC Role / Device Role / Timing Role: Voltage-domain firewall enabling safe, noise-immune communication across mixed-supply subsystems. Use Value: Withstands VL ≤ VCC constraint while tolerating ±0.3V fault transients - prevents latch-up during hot-plug events. |
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 | 2-channel, 1.65V–5.5V dual-supply, auto-direction sensing, 60Mbps max, 8-pin VSSOP | Requires no external pullups but adds direction-sensing latency (~20ns); larger package increases layout area | Preferred when scaling to multi-bit buses or requiring >2Mbps speeds; not drop-in due to pin count and control logic differences |
| SN74AVC4T245PW | 4-bit configurable direction, 1.2V–3.6V VCCA/VCCB, 32mA drive, 16-pin TSSOP | Direction pin required; higher drive strength but no internal pullups - mandates external resistors for I²C | Chosen for high-drive, multi-line translation where direction control is acceptable and space permits larger package |
Compared with TXS0102DCUR and SN74AVC4T245PW, the MAX3370EXK-T offers the smallest footprint (SC70-5), zero external components for I²C, and guaranteed 2Mbps operation at 1.6V VL - making it optimal for space-constrained, ultra-low-power single-line interfaces where direction autonomy is critical.
Availability
MAX3370EXK-T 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 product lifecycles.
Supply support for MAX3370EXK-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) designs precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, medical, and communications markets.
The MAX3370/MAX3371 family was engineered specifically for low-voltage bidirectional level translation in battery-powered portable systems - prioritizing minimal quiescent current, tiny footprint, and plug-and-play interoperability across mixed-voltage I/O standards.
FAQ
Does MAX3370EXK-T support I²C bidirectional communication without external pullup resistors?
Yes, MAX3370EXK-T integrates 10kΩ pullup resistors on both I/O VL and I/O VCC pins, enabling direct I²C bus connection without external components. This eliminates BOM items and layout area typically needed for pullups, and ensures proper signal termination for standard-mode (100kHz) and fast-mode (400kHz) I²C operation across its full VL (1.6V–5.5V) and VCC (2.5V–5.5V) ranges. The MAX3370EXK-T maintains bidirectional functionality without direction control logic.
What is the maximum capacitive load the MAX3370EXK-T can drive at 2Mbps?
The MAX3370EXK-T guarantees 2Mbps operation with a 10pF capacitive load on either I/O VL or I/O VCC, as specified in its Electrical Characteristics table. At 50pF, maximum data rate drops to 1Mbps; at 30pF with open-drain drive, it supports 500kbps. These values are measured under worst-case conditions (VCC = +2.5V, VL = +1.6V) and include propagation delay, rise/fall time, and skew specifications - all verified across −40°C to +85°C.
Is MAX3370EXK-T pin-compatible with MAX3371 variants?
No, MAX3370EXK-T is not pin-compatible with any MAX3371 variant. MAX3370EXK-T uses a 5-pin SC70 package with pins VL-GND-I/O VL-I/O VCC-VCC. All MAX3371 versions (e.g., MAX3371EXT+T, MAX3371ELT+T) use 6-pin packages (SC70-6 or µDFN-6) and include a dedicated SHDN pin - absent in MAX3370EXK-T. Substituting either part requires PCB redesign due to differing pin count, function allocation, and footprint.
Can MAX3370EXK-T translate between 1.6V and 5.5V logic levels reliably?
Yes, MAX3370EXK-T is fully specified for VL = +1.6V to +5.5V and VCC = +2.5V to +5.5V, with the constraint that VL must not exceed VCC. Its input thresholds scale with supply rails (e.g., VIHL = VL − 0.2V, VIHC = VCC − 0.4V), ensuring robust recognition of logic states across the entire range. Operation at 1.6V VL / 5.5V VCC is validated per datasheet Absolute Maximum Ratings and Electrical Characteristics - including propagation delay, output voltage levels, and supply current.
Does MAX3370EXK-T include a shutdown mode or low-power state?
No, MAX3370EXK-T does not include a shutdown mode. Unlike the MAX3371 series, it has no SHDN pin and draws <100µA continuously across its full operating temperature and voltage range. This fixed low quiescent current eliminates complexity associated with enable sequencing or wake-up latency - ideal for always-on interfaces in wearables and IoT edge nodes where predictable, constant power draw is preferred over dynamic gating.
MAX3370EXK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 1
- Voltage - VCCA:
- 1.65 V ~ 5.5 V
- Voltage - VCCB:
- 2.5 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- 3Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Power Supply Decoupling
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP, SC-70-5, SOT-353
MAX3370EXK-T FAQ
1.How can I place an order for MAX3370EXK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3370EXK-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 MAX3370EXK-T reliable?
The price and inventory of MAX3370EXK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3370EXK-T is usually 5 days.
3.What payment methods are accepted for MAX3370EXK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3370EXK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3370EXK-T?
MAX3370EXK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3370EXK-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 MAX3370EXK-T?
For technical support, including MAX3370EXK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3370EXK-T requirements.
6.How does Aetrix verify that MAX3370EXK-T is sourced from the original manufacturer or authorized distributors?
All MAX3370EXK-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 MAX3370EXK-T meets industry standards.
7.What is the process for return or replacement of MAX3370EXK-T?
All MAX3370EXK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3370EXK-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 MAX3370EXK-T part is unused and in its original packaging.
Return procedure for MAX3370EXK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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