Analog Devices Inc./Maxim Integrated MAX3023EUD+T

Overview

MAX3023EUD+T from Maxim Integrated is a quad-channel bidirectional logic-level translator IC enabling 100Mbps data transfer between 1.2V–1.8V and 1.65V–3.6V voltage domains. It features dual enable inputs (EN active-high, EN active-low), operates over –40°C to +85°C, and supports SPI/MICROWIRE interface translation in portable communication devices.

For engineers reviewing the MAX3023EUD+T datasheet, MAX3023EUD+T pinout, MAX3023EUD+T application, or MAX3023EUD+T equivalent, this page delivers verified electrical specs, TSSOP-14 pin mapping, real-world use cases for low-voltage ASIC interfacing, and two validated alternative parts with documented functional and packaging differences.

Technical Context

The MAX3023EUD+T implements a one-shot accelerator output stage architecture that activates only during signal transitions on either VL- or VCC-side I/Os, minimizing quiescent current while achieving sub-10ns propagation delays (6.5ns VL→VCC, 6ns VCC→VL). Its dual enable logic (EN/EN) allows flexible tri-state control: only when EN = VL and EN = GND does full bidirectional operation occur.

It supports asymmetric supply rails-VL from +1.2V to (VCC − 0.4V), VCC from +1.65V to +3.6V-with guaranteed 100Mbps operation at VL ≥ 1.8V and 80Mbps down to VL = 1.2V. Input thresholds are rail-proportional (VIHL/VILL = 2/3VL & 1/3VL; VIHC/VILC = 2/3VCC & 1/3VCC), ensuring robust noise margins across voltage combinations.

Key Specifications

Pinout & Package

MAX3023EUD+T is housed in a 14-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed thermal pad. Pin assignments are fully defined per Maxim's datasheet Rev 2 (12/04).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX3023EUD+T, MAX3023EBC-T offers identical functionality in a smaller package but omits EN control, while TXB0104RGYR removes enable pins entirely in favor of auto-sensing-trading deterministic tri-state control for routing simplicity at the cost of guaranteed low-VL performance.

Availability

MAX3023EUD+T is available at Aetrix Electronics and suitable for portable communication devices, SPI interface bridging, and low-voltage ASIC interfacing requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for MAX3023EUD+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-speed digital ICs for industrial, communications, and consumer applications.

The MAX3023EUD+T belongs to Maxim's high-speed logic-level translation product line, engineered specifically for multivoltage system interoperability in space-constrained, battery-powered devices demanding guaranteed 100Mbps throughput and ultra-low quiescent current.

FAQ

What is the guaranteed maximum data rate for MAX3023EUD+T at VL = 1.2V?

The MAX3023EUD+T guarantees 80Mbps operation when VL = 1.2V, as specified in Table 1 of the datasheet. This is distinct from its 100Mbps rating, which applies only when VL ≥ 1.8V. The device remains fully functional at 1.2V VL, but timing margins tighten accordingly, requiring careful load capacitance management below 15pF per I/O.

How do the EN and EN pins function together on MAX3023EUD+T?

On the MAX3023EUD+T (TSSOP package), EN is active-high and EN is active-low. Normal bidirectional operation requires EN = VL and EN = GND. If either EN is violated (e.g., EN = GND or EN = VL), both I/O sides enter tri-state. This dual-input scheme prevents accidental activation during power-up sequencing and enables fail-safe bus isolation.

Can MAX3023EUD+T translate between 1.2V and 3.6V rails simultaneously?

Yes - the MAX3023EUD+T supports VL as low as +1.2V and VCC as high as +3.6V, provided VL ≤ VCC − 0.4V. At VL = 1.2V, VCC must be ≥ 1.6V; at VCC = 3.6V, VL may be up to 3.2V. This flexibility allows direct interfacing of 1.2V ASICs to 3.3V peripherals without intermediate regulators or level-shifter stages.

What is the purpose of the N.C. pin (Pin 5) on MAX3023EUD+T?

Pin 5 of the MAX3023EUD+T is designated N.C. (No Connection) in the official pin table and has no internal bond wire or circuit connection. It must remain unconnected on the PCB - neither tied to GND, VCC, nor left floating with pull resistors. Routing traces or vias to this pad violates Maxim's layout guidance and may compromise thermal or ESD performance.

Does MAX3023EUD+T require external pull-up or pull-down resistors on its I/O lines?

No - the MAX3023EUD+T integrates internal pull-up (120Ω on VL side) and pulldown (75Ω on VL side; 2.5kΩ on VCC side) resistors per I/O. External resistors are unnecessary and discouraged, as they conflict with the device's rail-proportional threshold design and may distort switching waveforms or increase power consumption.