Analog Devices Inc./Maxim Integrated MAX3027EUD

Overview

MAX3027EUD from Maxim Integrated is a quad-channel unidirectional logic-level translator supporting 100Mbps data transfer between VL (1.2V–VCC−0.4V) and VCC (1.65V–3.6V) domains. It features separate VL→VCC (1 channel) and VCC→VL (3 channels), dual enable inputs (EN/EN), and operates over −40°C to +85°C. Used in portable POS systems and GPS modules for voltage-domain bridging between low-voltage PLDs and 3.3V peripherals.

For engineers reviewing the MAX3027EUD datasheet, MAX3027EUD pinout, MAX3027EUD application, or MAX3027EUD equivalent, key selection criteria include guaranteed 100Mbps operation at VL ≥1.8V, tri-state current of 0.03µA (VCC) / 74µA (VL), bidirectional enable control, and TSSOP-14 package compatibility with standard PCB assembly processes.

Technical Context

The MAX3027EUD implements a one-shot accelerator output stage architecture that activates only during signal transitions, minimizing quiescent power while enabling fast edge rates. Its dual enable inputs (EN high-active, EN low-active) allow independent control of tri-state behavior per side, with internal pullup/pulldown on EN/EN in TSSOP packages.

It supports asymmetric translation: one VL-referenced input drives a VCC-referenced output (VL→VCC), while three VCC-referenced inputs drive VL-referenced outputs (VCC→VL). Input thresholds are set at 1/3 and 2/3 of respective supply rails, ensuring robust noise margins across voltage combinations.

Key Specifications

Pinout & Package

MAX3027EUD is housed in a 14-pin TSSOP package (4.4mm width), RoHS-compliant, with 0.65mm pitch and exposed thermal pad (not electrically connected). Pin 1 marked by dot; recommended reflow profile per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar unidirectional level translation applications.

Compared with MAX3026EUD and TXS0104E, the MAX3027EUD provides optimal channel asymmetry (1:3) for host-peripheral architectures, lowest disabled VCC current (0.03µA), and deterministic 100Mbps timing - making it preferred for power-constrained, high-speed portable systems requiring precise enable control.

Availability

MAX3027EUD is available at Aetrix Electronics and suitable for portable POS terminals, satellite GPS receivers, industrial handheld scanners, medical wearable sensors, and telecommunications equipment requiring stable component supply across extended temperature ranges.

Supply support for MAX3027EUD 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 MAX3023–MAX3028 family targets multivoltage system interoperability, delivering high-speed, low-power, package-optimized level translation for portable and battery-powered electronics with strict power and space constraints.

FAQ

What is the maximum guaranteed data rate for MAX3027EUD?

The MAX3027EUD guarantees 100Mbps data transfer when VL ≥ 1.8V and load capacitance ≤15pF. At VL = 1.2V, the guaranteed rate drops to 80Mbps per the datasheet Table 1. This makes MAX3027EUD suitable for high-speed SPI and MICROWIRE interfaces in portable systems where supply rails meet the minimum voltage requirement.

How do the EN and EN pins function on MAX3027EUD?

On the MAX3027EUD TSSOP package, EN is active-high (driven to VL) and EN is active-low (driven to GND) for normal operation. Both must be asserted simultaneously - if either is deasserted, all I/Os enter tri-state. Internal pullup on EN and pulldown on EN simplify control logic, eliminating need for external biasing resistors in most designs.

Can MAX3027EUD translate signals from 3.3V to 1.2V?

Yes - MAX3027EUD supports VCC = 3.3V and VL = 1.2V, provided VL ≤ VCC − 0.4V (i.e., ≤2.9V), which holds true. The device translates three VCC-referenced inputs (I/O VCC1–3) to VL-referenced outputs (I/O VL1,3, and unused I/O VL4), and one VL-referenced input (I/O VL2) to VCC-referenced output (I/O VCC4, unused in this variant). All thresholds scale with actual supply voltages.

What is the tri-state supply current of MAX3027EUD?

When disabled (EN = low or EN = high), MAX3027EUD draws 0.03µA from VCC and 74µA from VL (typical, TA = +25°C, TSSOP package). These ultra-low currents are critical for battery-powered applications requiring deep-sleep modes without signal leakage or excessive quiescent drain.

Is MAX3027EUD pin-compatible with other MAX302x TSSOP variants?

No - MAX3027EUD has unique I/O assignment: only I/O VL1, I/O VL2, I/O VL3, I/O VCC1, I/O VCC2, and I/O VCC3 are functional; I/O VCC4 and I/O VL4 are no-connect. Pinouts differ across MAX3023–MAX3028 due to varying channel directionality. PCB layout must match the exact MAX3027EUD pin configuration shown in Figure 13 of the datasheet.