My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX3107ETG+T
- Part No.:
- MAX3107ETG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Controllers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX3107ETG+T.pdf
- Description:
- IC UART SPI/I2C 128 FIFO 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,332
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX3107ETG+T from Maxim Integrated is a dual-interface (I²C/SPI) UART IC with 128-word TX/RX FIFOs, fractional baud-rate generator, PLL-based clock synthesis, and auto transceiver direction control - enabling up to 24Mbps data rates in RS-485 half-duplex Profibus-DP systems. It operates from +2.35V to +3.6V, draws 640µA typical supply current at 1Mbaud, and integrates logic-level translation down to 1.7V for mixed-voltage host interfacing.
For engineers reviewing the MAX3107ETG+T datasheet, MAX3107ETG+T pinout, MAX3107ETG+T application, or MAX3107ETG+T equivalent, this page delivers verified technical context, real-world use cases in industrial fieldbus and automotive infotainment, pin-level design meaning, and two validated alternative UARTs with documented functional and packaging differences.
Technical Context
The MAX3107ETG+T implements a fully integrated clocking architecture comprising an internal oscillator, PLL with prescaler, and fractional baud-rate generator - enabling precise baud-rate synthesis across wide reference clock ranges without external crystal dependency. Its 2x/4x rate modes support high-speed serial protocols including Profibus-DP and IrDA SIR/MIR.
It features dual-host interface support (SPI up to 26MHz, I²C standard/fast-mode), automatic hardware/software flow control (RTS/CTS, XON/XOFF), 9-bit multidrop filtering, and GPIO-configurable special-character detection - all managed via a register map compatible with MAX3108/MAX3109/MAX14830 for firmware reuse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Support | I²C (up to 400kHz) and SPI (up to 26MHz); enables flexible integration with ARM Cortex-M or microcontrollers lacking native UART peripherals |
| FIFO Depth | 128-word transmit and receive FIFOs; reduces host CPU interrupt load and supports burst transfers in noisy industrial environments |
| Max Data Rate | 24Mbps (4x mode); supports high-throughput fieldbus applications like Profibus-DP without protocol translation overhead |
| Supply Voltage Range | +2.35V to +3.6V (VA), +1.71V to +3.6V (VL/VEXT); allows direct connection to 1.8V/2.5V/3.3V system rails without level shifters |
| Low-Power Modes | 20µA shutdown, 45–100µA sleep; extends battery life in portable medical or handheld POS terminals |
| Logic-Level Translation | Controller-side (DIN/DOUT/CS/SCLK) and transceiver-side (TX/RX/RTS/CTS) interfaces support down to 1.7V; simplifies mixed-voltage board design |
| Operating Temp | -40°C to +85°C extended range; qualified for under-hood automotive infotainment and factory-floor industrial controllers |
Pinout & Package
MAX3107ETG+T is housed in a 24-pin TQFN package (3.5mm × 3.5mm, 0.5mm pitch), optimized for space-constrained portable and embedded designs. Thermal resistance θJA = 65°C/W enables operation at full speed without heatsinking in ambient temperatures up to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA | Analog supply | Powers PLL, oscillator, and UART analog core; must be decoupled with 1µF ceramic near pin |
| VL | Digital logic supply | Supplies SPI/I²C interface and register logic; supports 1.71–3.6V for low-voltage MCU compatibility |
| VEXT | Transceiver I/O supply | Sets voltage level for TX/RX/RTS/CTS pins; enables direct interfacing with 1.8V–3.3V RS-485 transceivers |
| SCLK/SCL | Clock input | Shared pin for SPI clock (SCLK) or I²C clock (SCL); mode selected by I2C/SPI pin state at power-up |
| DIN/A1 & DOUT/SDA | Data I/O | Configurable as SPI data-in (DIN)/address bit A1 or I²C bidirectional SDA; eliminates need for interface-specific variants |
| IRQ | Interrupt output | Open-drain active-low signal indicating FIFO status, line errors, or special-character detection; directly drives MCU GPIO |
| GPIO_0–GPIO_3 | General-purpose I/O | Four programmable pins usable for modem control, status indication, or character-triggered wake-up events |
Key Features
| Feature | Design Value |
|---|---|
| Auto transceiver direction control | Programmable setup/hold timing eliminates external direction-control logic in RS-485 half-duplex systems, reducing BOM count and layout complexity |
| Fractional baud-rate generator | Enables exact baud-rate matching (e.g., 115.2kbps, 921.6kbps) across wide clock sources - critical for legacy fieldbus interoperability |
| Integrated PLL + prescaler | Removes need for external crystal oscillator; supports single 1.8432MHz or 3.6864MHz reference while achieving 24Mbps with <0.1% error |
| 9-bit multidrop-mode filtering | Hardware-accelerated address recognition offloads software parsing in multi-node RS-485 networks, improving real-time response |
| Line noise indication | Detects and flags corrupted frames caused by EMI or ground bounce - enables link-layer integrity checks without host CPU intervention |
| Register compatibility | Pin- and register-mapped to MAX3108/MAX3109/MAX14830; allows drop-in replacement or scalable design migration across performance tiers |
Applications
| Industrial Fieldbus Node | Automotive Infotainment Gateway |
|---|---|
Use Scenario: RS-485 half-duplex node in Profibus-DP network controlling PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: UART bridge between ARM-based controller and RS-485 physical layer, managing direction control, timing-critical echo suppression, and 24Mbps burst transfers. Use Value: Auto-direction control with programmable setup/hold times ensures glitch-free bus arbitration; 128-word FIFO absorbs jitter during motion-control command bursts. |
Use Scenario: Serial gateway connecting head-unit SoC (via I²C) to legacy Bluetooth/WiFi modules and CAN diagnostics tools in vehicle infotainment. IC Role / Device Role / Timing Role: Protocol translator providing isolated, level-shifted UART paths with hardware flow control to prevent buffer overflow during OTA updates. Use Value: Dual I²C/SPI interface enables seamless integration with either application processor or microcontroller subsystems; 1.7V logic translation supports 1.8V SoC I/O domains. |
| Portable Medical Monitor | Smart Building HVAC Controller |
Use Scenario: Battery-powered patient monitor transmitting ECG waveforms and alarms over RS-232 to bedside terminal via low-power UART link. IC Role / Device Role / Timing Role: Low-power UART with autosleep/shutdown modes and IRQ-driven wake-on-data, minimizing active time during idle periods. Use Value: 20µA shutdown current extends coin-cell or LiPo runtime; integrated oscillator eliminates external crystal, saving PCB area and BOM cost. |
Use Scenario: DIN-rail mounted HVAC controller communicating with temperature sensors, VFDs, and building management systems via RS-485 Modbus RTU. IC Role / Device Role / Timing Role: Robust UART interface with line-noise detection and 9-bit address filtering to maintain communication integrity in electrically noisy mechanical environments. Use Value: Line noise flag enables automatic retransmission on corrupted frames; 128-word FIFO prevents data loss during transient EMI events near compressors or relays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UART bridging applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3108ETG+ | Same pinout, identical register map, but adds IrDA SIR/MIR encoder/decoder and enhanced GPIO interrupt capabilities | Required when IrDA physical layer support or GPIO edge-triggered wake-up is needed beyond basic UART bridging | Select MAX3108ETG+ if IrDA compliance or advanced GPIO event handling is mandatory; otherwise MAX3107ETG+T offers lower cost and identical core UART functionality |
| MAX14830ETM+ | Quad-channel UART (4×128-word FIFOs), 32-QFN (5mm × 5mm), wider supply range (+2.97V to +5.5V), no integrated oscillator | Suitable for multi-port industrial gateways requiring four independent UARTs with shared SPI bus and higher-voltage transceiver support | Choose MAX14830ETM+ only when consolidating multiple serial links onto one IC; MAX3107ETG+T remains optimal for single-channel, space-constrained, low-power designs |
Compared with MAX3108ETG+, the MAX3107ETG+T omits IrDA encoding but retains identical UART performance, power profile, and footprint - making it ideal for cost-sensitive RS-232/RS-485-only applications. Against MAX14830ETM+, it trades channel count and voltage range for 30% smaller size and integrated clocking, better fitting portable or single-link embedded nodes.
Availability
MAX3107ETG+T is available at Aetrix Electronics and suitable for industrial fieldbus nodes, automotive infotainment gateways, and portable medical monitors requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX3107ETG+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, automotive, and communications markets.
The MAX3107ETG+T belongs to Maxim's high-performance UART product line, engineered specifically for low-power, space-constrained embedded systems needing robust serial bridging with minimal external components and flexible host interface options.
FAQ
What interface protocols does the MAX3107ETG+T support?
The MAX3107ETG+T supports both I²C (standard and fast mode up to 400kHz) and SPI (up to 26MHz) host interfaces. Interface selection is determined by the logic state of the I2C/SPI pin at power-up. This dual-interface capability allows the MAX3107ETG+T to integrate seamlessly with diverse microcontrollers - whether ARM-based SoCs with I²C peripherals or resource-constrained MCUs with SPI-only connectivity - without requiring hardware redesign.
Does the MAX3107ETG+T require an external crystal oscillator?
No, the MAX3107ETG+T includes an integrated oscillator and PLL-based clock synthesis engine. It can operate from a single external clock source (e.g., 1.8432MHz or 3.6864MHz) or use its internal oscillator, eliminating the need for an external crystal. This reduces bill-of-materials cost and PCB area - a key advantage in compact portable devices where the MAX3107ETG+T is frequently deployed.
How does the MAX3107ETG+T handle RS-485 half-duplex direction control?
The MAX3107ETG+T provides automatic transceiver direction control with programmable setup and hold times. When enabled, it asserts RTS/CLKOUT to enable the RS-485 driver before transmission and deasserts it after the final stop bit, with configurable delays to prevent bus contention. This hardware-managed control removes the need for external GPIO toggling or discrete logic, simplifying design and improving reliability in high-speed Profibus-DP implementations using the MAX3107ETG+T.
What power-saving modes are available on the MAX3107ETG+T?
The MAX3107ETG+T offers three low-power states: autosleep (45–100µA), forced sleep (same current range), and shutdown (20µA typical). In shutdown mode, the device retains register contents but disables all clocks and I/O drivers. These modes are controlled via dedicated registers and triggered by host commands or idle-line detection - enabling significant energy savings in battery-powered applications such as handheld medical monitors that rely on the MAX3107ETG+T for serial telemetry.
Is the MAX3107ETG+T pin-compatible with other UARTs in Maxim's portfolio?
Yes, the MAX3107ETG+T is pin-compatible and register-compatible with the MAX3108ETG+, MAX3109ETG+, and MAX14830ETM+. This compatibility allows direct substitution in existing layouts or firmware reuse across product families. However, note that MAX3108ETG+ adds IrDA support and enhanced GPIO features, while MAX14830ETM+ is a quad-channel variant in a larger 32-pin QFN - so pin compatibility does not imply functional equivalence across all features of the MAX3107ETG+T.
MAX3107ETG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 24-WFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- RS232, RS485
- Function:
- Controller
- Interface:
- I2C, SPI, UART
- Standards:
- -
- Voltage - Supply:
- 2.35V ~ 3.6V
- Current - Supply:
- 650µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-TQFN (3.5x3.5)
- Grade:
- -
- Qualification:
- -
MAX3107ETG+T FAQ
1.How can I place an order for MAX3107ETG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3107ETG+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 MAX3107ETG+T reliable?
The price and inventory of MAX3107ETG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3107ETG+T is usually 5 days.
3.What payment methods are accepted for MAX3107ETG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3107ETG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3107ETG+T?
MAX3107ETG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3107ETG+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 MAX3107ETG+T?
For technical support, including MAX3107ETG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3107ETG+T requirements.
6.How does Aetrix verify that MAX3107ETG+T is sourced from the original manufacturer or authorized distributors?
All MAX3107ETG+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 MAX3107ETG+T meets industry standards.
7.What is the process for return or replacement of MAX3107ETG+T?
All MAX3107ETG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3107ETG+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 MAX3107ETG+T part is unused and in its original packaging.
Return procedure for MAX3107ETG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX3107ETG+T Tags
-
PTN5150AHXMP
NXP Semiconductors
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
