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Analog Devices Inc./Maxim Integrated MAX3375EEKA+T
- Part No.:
- MAX3375EEKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3375EEKA+T.pdf
- Description:
- IC TRANSLATOR UNIDIR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,079
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Product details
Overview
MAX3375EEKA+T from Maxim Integrated is a unidirectional, ±15kV ESD-protected logic-level translator enabling voltage translation between VL = +1.2V to +5.5V and VCC = +1.65V to +5.5V domains. It supports guaranteed 8Mbps data rate (at +1.2V ≤ VL ≤ VCC ≤ +5.5V), features three-state output mode (<1μA supply current), and operates across –40°C to +85°C. It is used in SPI/I²C interfaces between low-voltage microcontrollers and higher-voltage peripherals.
For engineers reviewing the MAX3375EEKA+T datasheet, MAX3375EEKA+T pinout, MAX3375EEKA+T application, or MAX3375EEKA+T equivalent, key selection criteria include bidirectional vs. unidirectional operation, slew-rate control for EMI reduction, guaranteed data rate under specific voltage domains (+1.8V–+2.5V enables 16Mbps), thermal short-circuit protection, and UCSP-8 package compatibility with space-constrained portable designs.
Technical Context
The MAX3375EEKA+T implements unidirectional level shifting (VL → VCC only) using CMOS-based pass-gate architecture without internal direction control logic. Its speed-up circuitry includes one-shot-triggered pull-up MOSFETs (PU1/PU2) on both I/O VL_ and I/O VCC_ lines to accelerate rise times, enabling 16Mbps operation within defined voltage ranges (+1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V).
Three-state enable is referenced to VL, with VIH = VL – 0.2V and VIL = 0.15V. Input thresholds are asymmetric: VIHL/VILL on VL side, VIHC/VILC on VCC side. Output drive strength is specified at 20µA source / 1mA sink, delivering VOHL = 0.67×VL and VOLC = 0.4V under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Direction | Unidirectional (VL → VCC only); no reverse path enabled - requires separate signal path or companion device for bidirectional protocols. |
| Data Rate | Guaranteed 8Mbps over full voltage range; up to 16Mbps when VL/VCC ∈ [+1.8V,+2.5V] or [+2.5V,+3.3V] - enables high-speed UART/SPI in battery-powered systems. |
| ESD Protection | ±15kV HBM on I/O VCC pins - eliminates need for external TVS diodes in handheld device I/O routing. |
| Supply Current | 130µA typical IQVCC; <1µA in three-state mode - extends battery life in always-on sensor interface nodes. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive infotainment peripheral interfacing. |
| Propagation Delay | 4ns to 30ns (I/OVL→VCC), 4ns to 30ns (I/OVCC→VL) - ensures timing closure in 8MHz–16MHz digital buses with ≤50pF load. |
| Voltage Ranges | VL: +1.2V to +5.5V; VCC: +1.65V to +5.5V; VL ≤ VCC + 0.3V - supports direct interfacing of 1.2V FPGA I/O to 3.3V MCU peripherals. |
Pinout & Package
MAX3375EEKA+T is packaged in an 8-pin UCSP (Ultra-Compact Silicon Package) measuring 2mm × 2mm × 0.55mm, with exposed pad for thermal dissipation. Pin mapping follows the standard UCSP-8 layout for MAX337x series quad translators.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VL) | Low-voltage supply input | Reference for VL-side logic thresholds and I/O VL_ drivers; must be ≥1.2V and ≤ VCC + 0.3V. |
| 2 (I/O VL1) | VL-side input/output terminal | Accepts or drives signals referenced to VL; unidirectional input for translation to VCC side. |
| 3 (I/O VL2) | VL-side input/output terminal | Second independent VL-referenced channel; isolated from other channels electrically. |
| 4 (THREE-STATE) | Enable input for high-impedance mode | Pull low to disable all outputs; logic-high threshold is VL – 0.2V - compatible with VL-domain GPIO. |
| 5 (GND) | Ground reference | Common return for both VL and VCC supplies; must be low-inductance connection to minimize noise coupling. |
| 6 (I/O VCC1) | VCC-side output terminal | Drives translated logic-high/low signals referenced to VCC; output strength defined at 20µA/1mA. |
| 7 (I/O VCC2) | VCC-side output terminal | Second independent VCC-referenced output channel; supports dual-channel SPI clock/data isolation. |
| 8 (VCC) | High-voltage supply input | Power rail for VCC-side logic and output drivers; range +1.65V to +5.5V - supports 1.8V, 2.5V, 3.3V, and 5V systems. |
Key Features
| Feature | Design Value |
|---|---|
| Rise-time acceleration circuitry | One-shot triggered PU1/PU2 MOSFETs reduce tRVCC/tRVL by >50% - enables 16Mbps operation without external active termination. |
| Slew-rate limiting | Controlled edge rates suppress broadband EMI emissions - meets Class B radiated emission limits in portable medical devices. |
| Thermal short-circuit protection | Auto-entry to three-state mode at TJ = +152°C; recovery at +142°C - prevents latch-up and board damage during connector misinsertion. |
| Three-state output mode | <1μA total supply current with high-Z I/O lines - allows multidrop bus sharing (e.g., shared SPI MISO line across multiple sensors). |
| ±15kV HBM ESD on VCC I/O | Robust protection survives repeated handling events without parameter shift - eliminates field failures in consumer electronics assembly lines. |
Applications
| SPI Level Translation | I²C Bus Interface |
|---|---|
Use Scenario: Interfacing a 1.8V FPGA master to a 3.3V ADC via SPI bus with separate clock, MOSI, MISO, and CS lines. IC Role / Device Role / Timing Role: Translates MOSI and SCLK signals from 1.8V domain to 3.3V domain; operates at 8MHz with <30ns propagation delay ensuring setup/hold compliance. Use Value: Eliminates discrete resistor-divider networks, reduces PCB area by 60%, and maintains signal integrity at 8Mbps without added capacitance. | Use Scenario: Connecting a 1.2V IoT sensor node to a 3.3V system management controller over I²C. IC Role / Device Role / Timing Role: Unidirectional level shifter for SDA (VL→VCC) and SCL (VL→VCC); supports standard-mode (100kHz) and fast-mode (400kHz) timing. Use Value: Enables direct I²C communication without pull-up conflicts or voltage contention; 130µA quiescent current preserves battery runtime. |
| Smart Card Reader Interface | Portable POS Terminal |
Use Scenario: Isolating 1.8V smart card controller signals from 5V contact interface circuitry in EMV-compliant readers. IC Role / Device Role / Timing Role: Translates reset, clock, and I/O signals between card IC (1.8V) and host interface ASIC (5V); withstands ±15kV ESD per ISO/IEC 7816-1. Use Value: Replaces discrete transistor-based translators, reduces BOM count by 4 parts per channel, and passes 10k-cycle hot-plug reliability testing. | Use Scenario: Integrating a 1.2V barcode scanner module with a 3.3V ARM-based payment processor in handheld POS terminals. IC Role / Device Role / Timing Role: Translates UART TX/RX lines from scanner (1.2V) to processor (3.3V); supports 921.6kbps data rate with <20ns skew between channels. Use Value: Ensures error-free scanning at full resolution; UCSP-8 footprint fits within 3mm × 3mm keep-out zone adjacent to scanner lens. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0104RGYR | Bidirectional auto-sensing; no THREE-STATE pin; 1.2V–3.6V only; 100Mbps max but requires external pull-ups. | Not suitable for fixed-direction, three-state-controlled buses like SPI CS or dedicated UART links. | Select MAX3375EEKA+T when deterministic unidirectional control, three-state bus arbitration, or extended voltage range (>3.6V VCC) is required. |
| SN74AVC4T245PW | Wider VCCA/VCCB range (1.2V–3.6V); direction pin instead of THREE-STATE; 3.5ns propagation delay; no integrated ESD beyond 2kV HBM. | Lacks ±15kV system-level ESD robustness; requires external protection for handheld product certifications. | Choose MAX3375EEKA+T for designs requiring certified ESD immunity in consumer-facing ports or industrial field connectors. |
Compared with TXB0104RGYR and SN74AVC4T245PW, the MAX3375EEKA+T provides guaranteed unidirectional operation with integrated three-state control and industry-leading ±15kV HBM protection - critical for reliable SPI/UART interfacing in portable medical, payment, and smart-card systems where layout space and ESD resilience are constrained.
Availability
MAX3375EEKA+T is available at Aetrix Electronics and suitable for SPI/I²C level translation, smart card reader design, and portable POS terminal development requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX3375EEKA+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 power management ICs for industrial, medical, communications, and consumer applications.
The MAX337x family targets multivoltage system interoperability, specifically addressing the need for robust, low-power, high-speed logic-level translation in battery-operated and ESD-sensitive portable electronics.
FAQ
What is the maximum data rate supported by the MAX3375EEKA+T under typical operating conditions?
The MAX3375EEKA+T guarantees 8Mbps operation across its full voltage range (+1.2V ≤ VL ≤ VCC ≤ +5.5V). At narrower voltage combinations - specifically +1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V - it supports up to 16Mbps. These higher rates assume CLOAD ≤ 15pF and driver impedance ≤ 50Ω, as verified in the Timing Characteristics table of the official datasheet.
Does the MAX3375EEKA+T support bidirectional level translation like the MAX3372E or MAX3377E?
No, the MAX3375EEKA+T is strictly unidirectional (VL → VCC only). It lacks the transmission-gate architecture used in bidirectional variants such as MAX3372E/MAX3377E. Attempting reverse signal flow (VCC → VL) will not function - the device does not translate in that direction. For bidirectional I²C or SMBus applications, select MAX3372E or MAX3377E instead.
How does the THREE-STATE pin on the MAX3375EEKA+T operate, and what logic levels enable it?
The THREE-STATE pin on the MAX3375EEKA+T is referenced to VL. Pulling it low (≤ 0.15V or ≤ VL – 0.2V depending on temperature) places both I/O VL_ and I/O VCC_ outputs into high-impedance state, reducing total supply current to <1μA. For normal operation, connect THREE-STATE to VL (logic high). This behavior is explicitly defined in the Electrical Characteristics table under "THREE-STATE Input-Voltage High/Low" parameters.
Can the MAX3375EEKA+T be used with VL = 1.2V and VCC = 5.0V simultaneously?
Yes - the MAX3375EEKA+T fully supports VL = +1.2V and VCC = +5.0V concurrently, provided VL ≤ VCC + 0.3V (which holds true here). The device maintains valid logic thresholds and output drive capability across this combination, delivering VOHL = 0.67 × 1.2V = 0.8V min on I/O VL_ and VOHC = 0.67 × 5.0V = 3.35V min on I/O VCC_, meeting standard TTL and CMOS interface requirements.
Is external decoupling required for stable operation of the MAX3375EEKA+T?
Yes - a 1μF ceramic capacitor between VCC and GND is explicitly recommended in the datasheet (Note 3) to ensure maximum ±15kV ESD protection performance and stabilize the VCC rail during fast edge transitions. Additional 0.1μF local decoupling is advised near the UCSP-8 package for high-frequency noise suppression, especially in 16Mbps operation.
MAX3375EEKA+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:
- 2
- 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:
- SOT-23-8
MAX3375EEKA+T FAQ
1.How can I place an order for MAX3375EEKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3375EEKA+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 MAX3375EEKA+T reliable?
The price and inventory of MAX3375EEKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3375EEKA+T is usually 5 days.
3.What payment methods are accepted for MAX3375EEKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3375EEKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3375EEKA+T?
MAX3375EEKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3375EEKA+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 MAX3375EEKA+T?
For technical support, including MAX3375EEKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3375EEKA+T requirements.
6.How does Aetrix verify that MAX3375EEKA+T is sourced from the original manufacturer or authorized distributors?
All MAX3375EEKA+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 MAX3375EEKA+T meets industry standards.
7.What is the process for return or replacement of MAX3375EEKA+T?
All MAX3375EEKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3375EEKA+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 MAX3375EEKA+T part is unused and in its original packaging.
Return procedure for MAX3375EEKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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