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Analog Devices Inc./Maxim Integrated MAX3379EEBC
- Part No.:
- MAX3379EEBC
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
MAX3379EEBC.pdf
- Description:
- QUAD LOW-VOLT LEVEL TRANSLATOR
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
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Product details
Overview
The MAX3379EEBC from Maxim Integrated is a quad unidirectional voltage-level translator enabling bidirectional data flow across two independent logic domains (VL = +1.2V to +5.5V, VCC = +1.65V to +5.5V), supporting guaranteed 8Mbps operation over full voltage range and up to 16Mbps under +1.8V ≤ VL ≤ VCC ≤ +2.5V or +2.5V ≤ VL ≤ VCC ≤ +3.3V conditions, with ±15kV HBM ESD protection on VCC-side I/Os - deployed in portable POS systems, smart card readers, and low-cost serial interfaces.
For engineers reviewing the MAX3379EEBC datasheet, MAX3379EEBC pinout, MAX3379EEBC application, or MAX3379EEBC equivalent, this page delivers verified electrical specs, package mapping to 14-pin TDFN (3mm × 3mm), confirmed unidirectional VL→VCC/VCC→VL translation per channel, thermal short-circuit protection, and three-state output mode with <1µA supply current - all critical for multivoltage ASIC/PLD interfacing in space-constrained industrial and consumer designs.
Technical Context
The MAX3379EEBC implements four independent unidirectional level-shifting channels using MOSFET-based pass-gate architecture with integrated speed-up circuitry (one-shot generator) to accelerate rise times on both VL and VCC sides. It does not support true bidirectional operation like the MAX3377E/MAX3378E - each I/O pair is directionally fixed per pin configuration.
Three-state control is referenced to VL, with logic thresholds VIH-THREE-STATE = VL − 0.2V and VIL-THREE-STATE = 0.15V; activation forces all I/O lines into high-impedance state and reduces total supply current to <1µA. Thermal protection triggers at TJ = +152°C, forcing three-state mode until junction cools to +142°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Direction | Unidirectional per channel (VL → VCC or VCC → VL, fixed by pin assignment) |
| Max Data Rate | 8Mbps guaranteed over full VL/VCC operating range (+1.2V ≤ VL ≤ VCC ≤ +5.5V) |
| ESD Protection | ±15kV HBM on I/O VCC pins - eliminates need for external TVS in handheld interfaces |
| Supply Current (Active) | 130µA typical IQVCC + 16µA typical IQVL - enables battery-powered operation |
| Three-State Supply Current | <1µA total (ITHREE-STATE-VCC & ITHREE-STATE-VL) - supports multidrop bus sleep modes |
| Propagation Delay | 190ns max (I/O VL→VCC) / 210ns max (I/O VCC→VL) at 8Mbps, CLOAD = 15pF |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive accessory environments |
Pinout & Package
MAX3379EEBC is packaged in a 14-pin TDFN (3mm × 3mm) with exposed pad (EP), pin-compatible with MAX3377E/MAX3378E but functionally distinct due to unidirectional channel assignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 14) | High-side supply input | Accepts +1.65V to +5.5V; powers VCC-referenced I/Os and internal bias circuitry |
| VL (Pin 7) | Low-side supply input | Accepts +1.2V to +5.5V; sets logic thresholds for VL-referenced I/Os and THREE-STATE control |
| THREE-STATE (Pin 6) | Enable input for high-impedance mode | Pull low (≤0.15V) to disable all outputs; logic-high threshold = VL − 0.2V |
| GND (Pin 4) | Common reference | Return path for both supplies; EP must be soldered to PCB ground plane |
| I/O VL1–VL4 (Pins 1,2,5,6*) | Low-voltage side I/Os | Each paired with corresponding I/O VCCx; direction fixed per device variant (MAX3379E = unidirectional) |
| I/O VCC1–VCC4 (Pins 13,12,11,10) | High-voltage side I/Os | Paired 1:1 with I/O VLx; output swing VOHC = 0.67×VCC, VOLC = 0.4V (1mA sink) |
Key Features
| Feature | Design Value |
|---|---|
| Quad unidirectional translation | Four independent channels support mixed-voltage SPI/I²C signal routing without bus contention |
| Rise-time acceleration | Internal one-shot circuit reduces tRVCC/tRVL to 15–40ns (vs. >600ns in base design), enabling 16Mbps operation |
| Thermal short-circuit protection | Automatic three-state entry at TJ = +152°C prevents latch-up and permanent damage during fault conditions |
| Ultra-low quiescent current | 130µA typical total supply current allows integration into always-on sensor hubs and wearables |
| Robust ESD immunity | ±15kV HBM on VCC-side I/Os meets IEC 61000-4-2 Level 3 system requirements without external protection |
Applications
| Smart Card Readers | Portable POS Systems |
|---|---|
Use Scenario: Interfacing 1.8V smart card controller with 3.3V host MCU via ISO 7816-3 compliant serial interface. IC Role / Device Role / Timing Role: Unidirectional level shifter translating command/response signals between VL = +1.8V and VCC = +3.3V domains at 5MHz clock rate. Use Value: Eliminates discrete resistor-divider networks while maintaining signal integrity and meeting contactless card timing margins (tCL, tRL). | Use Scenario: Connecting 1.2V barcode scanner ASIC to 5V payment terminal processor over UART. IC Role / Device Role / Timing Role: Four-channel VL→VCC translator handling RX/TX, RTS/CTS with 8Mbps capability and <210ns propagation delay. Use Value: Enables direct connection without level-shifting discretes, reducing BOM count and PCB area in compact handheld enclosures. |
| Cell-Phone Cradles | GPS Modules |
Use Scenario: Bridging 1.8V USB PHY transceiver to 3.3V system controller in docking station firmware update path. IC Role / Device Role / Timing Role: Bidirectional-capable pinout used in unidirectional mode for dedicated firmware download line (VCC = +3.3V, VL = +1.8V). Use Value: Provides ESD-hardened isolation between external USB port and internal logic, surviving repeated hot-plug events. | Use Scenario: Level-matching NMEA 0183 GPS receiver (3.3V logic) to ultra-low-power 1.2V microcontroller in asset tracker. IC Role / Device Role / Timing Role: Unidirectional VCC→VL translator for GPS TX line, operating at 4800 baud with <1µA standby current in three-state mode. Use Value: Extends battery life by enabling MCU to power down GPS interface completely while retaining fast wake-up response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0104RUTR | Auto-direction sensing; no THREE-STATE pin; 1.2V–3.6V only; 100Mbps max | Requires no direction-control signal; unsuitable for fixed-direction high-noise environments | Select when bidirectional auto-sensing is preferred and voltage range fits; avoid if deterministic direction control or >3.6V VCC needed |
| SN74AVC4T245PW | Bus-hold inputs; 1.2V–3.6V; 3.5ns propagation delay; no integrated ESD beyond 2kV HBM | Lacks ±15kV ESD hardening; requires external protection for external-facing ports | Select for ultra-low latency in board-to-board links where ESD risk is controlled; not recommended for handheld peripherals |
Compared with TXB0104RUTR and SN74AVC4T245PW, the MAX3379EEBC provides guaranteed 16Mbps operation across wider voltage ranges (+1.2V to +5.5V), integrated ±15kV ESD protection eliminating external components, and explicit three-state control - making it optimal for ruggedized portable electronics interfacing legacy and next-gen logic families.
Availability
MAX3379EEBC is available at Aetrix Electronics and suitable for portable POS systems, smart card readers, cell-phone cradles, and GPS modules requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX3379EEBC 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, medical, communications, and consumer applications.
The MAX3372E–MAX3379E family was engineered specifically for robust, low-power voltage translation in multivoltage portable and embedded systems - prioritizing ESD resilience, wide supply flexibility, and minimal quiescent current.
FAQ
What is the maximum guaranteed data rate for MAX3379EEBC across its full operating voltage range?
The MAX3379EEBC guarantees 8Mbps operation for all combinations of VL and VCC within +1.2V ≤ VL ≤ VCC ≤ +5.5V. Higher speeds - up to 16Mbps - are achievable only in specific voltage domains: +1.8V ≤ VL ≤ VCC ≤ +2.5V and +2.5V ≤ VL ≤ VCC ≤ +3.3V, as confirmed in the Timing Characteristics table of the official datasheet.
Does MAX3379EEBC support bidirectional level translation like the MAX3377E?
No, the MAX3379EEBC is a unidirectional level translator. Each of its four channels is configured for fixed-direction translation - either VL → VCC or VCC → VL - as defined by internal circuitry and pin assignment. True bidirectional operation (VL ↔ VCC) is exclusive to the MAX3372E/MAX3373E/MAX3377E/MAX3378E variants.
How does the THREE-STATE pin function on MAX3379EEBC, and what logic levels activate it?
The THREE-STATE pin on MAX3379EEBC is VL-referenced: pulling it low (≤0.15V) places all I/O lines in high-impedance state and reduces total supply current to <1µA. The logic-high threshold is VL − 0.2V. This enables bus sharing in multidrop configurations and ultra-low-power sleep modes without external pull-ups.
Can MAX3379EEBC operate with VL = 1.2V and VCC = 5.5V simultaneously?
Yes, the MAX3379EEBC is fully specified for VL = +1.2V and VCC = +5.5V concurrently. Its input thresholds (VIHL = VL − 0.2V, VIHC = VCC − 0.4V) and output drive strength (VOHL = 0.67 × VL, VOHC = 0.67 × VCC) ensure reliable logic recognition and rail-to-rail signal translation across this extreme voltage ratio.
Is the exposed pad (EP) on the MAX3379EEBC TDFN package required to be grounded?
Yes, the exposed pad (Pin EP) on the MAX3379EEBC TDFN-14 package must be soldered to a PCB ground plane. It serves as the primary thermal and electrical ground path - omitting this connection degrades thermal performance, increases junction temperature under load, and may compromise ESD robustness and long-term reliability.
MAX3379EEBC 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:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- 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:
- 8Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WFBGA, CSPBGA
MAX3379EEBC FAQ
1.How can I place an order for MAX3379EEBC through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3379EEBC 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 MAX3379EEBC reliable?
The price and inventory of MAX3379EEBC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3379EEBC is usually 5 days.
3.What payment methods are accepted for MAX3379EEBC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3379EEBC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3379EEBC?
MAX3379EEBC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3379EEBC 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 MAX3379EEBC?
For technical support, including MAX3379EEBC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3379EEBC requirements.
6.How does Aetrix verify that MAX3379EEBC is sourced from the original manufacturer or authorized distributors?
All MAX3379EEBC 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 MAX3379EEBC meets industry standards.
7.What is the process for return or replacement of MAX3379EEBC?
All MAX3379EEBC units undergo pre-shipment inspection (PSI). If there is an issue with MAX3379EEBC, 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 MAX3379EEBC part is unused and in its original packaging.
Return procedure for MAX3379EEBC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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