Analog Devices Inc./Maxim Integrated MAX3001EAUP+

Overview

MAX3001EAUP+ from Maxim Integrated is an 8-channel bidirectional logic-level translator IC designed for voltage translation between +1.2V and +5.5V domains without direction control pins. It guarantees 4Mbps data rate, supports ±15kV HBM ESD protection on I/O VCC lines, operates from -40°C to +125°C, and features ultra-low 0.1µA shutdown current. It enables reliable SPI and MICROWIRE interface bridging in portable communication devices.

For engineers reviewing the MAX3001EAUP+ datasheet, MAX3001EAUP+ pinout, MAX3001EAUP+ application, or MAX3001EAUP+ equivalent, this page delivers verified electrical specs, package mapping (20-pin TSSOP), bidirectional timing behavior, EN-controlled three-state operation, and real-world use cases in low-voltage ASIC interfacing and smart card readers.

Technical Context

The MAX3001EAUP+ implements a passive-bidirectional architecture that eliminates need for direction-control signals-data flows VL ↔ VCC automatically on each channel. Its internal accelerator output stage activates only during signal transitions, minimizing quiescent current while enabling fast edge response.

It accepts VL from +1.2V to +5.5V and VCC from +1.65V to +5.5V, with guaranteed operation when VL ≤ VCC. The EN input places all eight I/O VCC pins in high-impedance state while applying 6kΩ pulldowns to I/O VL pins, supporting bus isolation in multi-drop systems.

Key Specifications

Pinout & Package

MAX3001EAUP+ is housed in a 20-pin TSSOP package (5.0mm × 6.5mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin 1 is I/O VL1; Pin 10 is EN; Pin 11 is GND; Pin 19 is VCC; Pin 20 is I/O VCC1. All power pins require local 0.1µF bypass capacitors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXB0108PWR and SN74AVC8T245RHLR, the MAX3001EAUP+ uniquely combines true bidirectionality without control pins, ±15kV ESD hardening, and guaranteed 1.2V VL compatibility - making it optimal for space-constrained, user-accessible, and ultra-low-voltage designs where reliability and simplicity are prioritized over peak bandwidth.

Availability

MAX3001EAUP+ is available at Aetrix Electronics and suitable for smart card readers, portable POS systems, cellphone cradles, and low-voltage ASIC interfacing requiring stable component supply across automotive, industrial, and consumer product lifecycles.

Supply support for MAX3001EAUP+ 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) is a semiconductor company specializing in precision analog, mixed-signal, and high-reliability interface solutions for demanding industrial, automotive, and communications applications.

The MAX3000E/MAX3001E family was engineered specifically for robust, pin-efficient multivoltage system interfacing - targeting portable electronics, secure transaction systems, and mixed-rail embedded controllers where ESD resilience and ultra-low power in shutdown are mandatory.

FAQ

What is the maximum guaranteed data rate for MAX3001EAUP+?

The MAX3001EAUP+ guarantees 4Mbps operation across its full specified voltage and temperature range (-40°C to +125°C, VL = +1.2V to +5.5V, VCC = +1.65V to +5.5V). This is validated under load conditions up to 50pF with RS = 50Ω, ensuring reliable SPI and MICROWIRE timing margins in real-world layouts. Higher speeds may be achievable at narrower voltage windows, but 4Mbps is the production-tested minimum guarantee for MAX3001EAUP+.

Does MAX3001EAUP+ support true bidirectional translation without a direction pin?

Yes, MAX3001EAUP+ uses a proprietary passive-bidirectional architecture that enables automatic signal flow in either direction (VL ↔ VCC) on each of its eight channels - no external direction control signal is needed. This eliminates timing-critical direction toggling and simplifies firmware and PCB design. Unlike unidirectional translators such as TXB0108PWR, the MAX3001EAUP+ maintains full functionality regardless of data flow direction on any given line.

What is the purpose of the EN pin on MAX3001EAUP+?

The EN pin on MAX3001EAUP+ controls output enable mode: when pulled low, all eight I/O VCC pins enter high-impedance three-state, while all eight I/O VL pins activate internal 6kΩ pulldown resistors. This provides clean bus isolation during power-down or standby modes. Driving EN high (to VL) restores normal bidirectional operation. This feature is essential for shared-bus architectures in portable POS and smart card systems where multiple peripherals share signal lines.

Can MAX3001EAUP+ operate with VL = 1.2V and VCC = 3.3V simultaneously?

Yes, MAX3001EAUP+ is explicitly rated for VL as low as +1.2V and VCC as high as +5.5V, with guaranteed operation when VL ≤ VCC. The 1.2V/3.3V combination is a common configuration supported across all electrical and timing specifications - including 4Mbps data rate, ±15kV ESD protection, and -40°C to +125°C temperature range. This makes MAX3001EAUP+ ideal for interfacing next-generation ultra-low-power sensors or AI accelerators with legacy 3.3V system controllers.

Is MAX3001EAUP+ pin-compatible with other members of the MAX3000E/MAX3001E family?

Yes, MAX3001EAUP+ shares identical 20-pin TSSOP pinout and footprint with MAX3000EAUP+, MAX3002EAUP+, and MAX3004EAUP+. All variants use the same VL/VCC power domains, EN control, and I/O VL/I/O VCC pin assignments. However, key differences exist in data rate (230kbps/4Mbps/20Mbps), ESD rating (±15kV only on MAX3000E/MAX3001E), and internal architecture (bidirectional vs. unidirectional), so functional substitution requires validation of timing and protection requirements for the target application.