Analog Devices Inc./Maxim Integrated MAX3002EUP+

Overview

MAX3002EUP+ from Maxim Integrated is an 8-channel bidirectional logic-level translator IC enabling voltage translation between +1.2V to +5.5V (VL) and +1.65V to +5.5V (VCC) domains without direction control pins. It supports guaranteed 20Mbps data rate, ±15kV HBM ESD protection on I/O VCC lines, and ultra-low 0.1µA shutdown current. It is used in SPI/MICROWIRE interfaces between low-voltage ASICs and 3.3V/5V systems.

For engineers reviewing the MAX3002EUP+ datasheet, MAX3002EUP+ pinout, MAX3002EUP+ application, or MAX3002EUP+ equivalent, key selection criteria include bidirectional operation without direction pin, 20Mbps timing performance across full VL/VCC voltage range, EN-controlled three-state output mode, and compatibility with portable communication devices requiring robust ESD immunity and low-power shutdown.

Technical Context

The MAX3002EUP+ uses a passive-bidirectional architecture that enables automatic signal flow in either direction (VL ↔ VCC) per channel, eliminating need for external direction control. Its one-shot accelerator output stage activates only during signal transitions to minimize quiescent current while achieving fast edge rates.

It features independent supply domains (VL and VCC), with logic thresholds defined as fractions of respective supplies (VIHL = 2/3×VL, VIHC = 2/3×VCC), ensuring reliable switching across wide voltage combinations. The EN input places all eight I/O VCC pins in high-impedance state while applying 6kΩ pulldowns to I/O VL pins.

Key Specifications

Pinout & Package

MAX3002EUP+ is packaged in a 20-pin TSSOP (5mm × 6.5mm, 0.65mm pitch) with exposed pad. Pin numbering follows standard TSSOP layout; exposed pad must be connected to GND for thermal and electrical stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXB0108PWR and SN74AVC8T245RHLR, MAX3002EUP+ delivers verified ±15kV ESD immunity, true bidirectionality without pin overhead, and guaranteed 20Mbps operation across its full 1.2V–5.5V VL/VCC range - making it uniquely suited for rugged, low-pin-count, multivoltage portable interfaces.

Availability

MAX3002EUP+ is available at Aetrix Electronics and suitable for portable POS systems, smart card readers, cellphone cradles, and GPS modules requiring stable component supply with long-term industrial availability.

Supply support for MAX3002EUP+ 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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications.

The MAX3000E/MAX3001E/MAX3002–MAX3012 family was designed specifically for robust, low-power, multivoltage logic interfacing in portable and industrial equipment where ESD resilience and voltage flexibility are critical.

FAQ

What is the maximum guaranteed data rate for MAX3002EUP+ across its full operating voltage range?

The MAX3002EUP+ guarantees 20Mbps operation across its entire specified VL and VCC voltage range (+1.2V ≤ VL ≤ VCC ≤ +5.5V). This is confirmed in the Timing Characteristics table for MAX3002–MAX3012, with typical rise/fall times of 15ns and propagation delays ≤20ns under 15pF load conditions. Performance remains stable across temperature (-40°C to +85°C) and supply variations, making MAX3002EUP+ suitable for high-reliability SPI and MICROWIRE links.

Does MAX3002EUP+ require a direction control pin for bidirectional operation?

No, MAX3002EUP+ does not require a direction control pin. It uses a proprietary passive-bidirectional architecture that automatically routes signals in either direction (VL ↔ VCC) on each of its eight channels. This eliminates GPIO overhead and timing constraints associated with direction pin synchronization - a key differentiator from alternatives like SN74AVC8T245RHLR. The MAX3002EUP+ achieves this while maintaining 20Mbps throughput and <5ns channel skew.

What ESD protection level does MAX3002EUP+ provide, and on which pins?

MAX3002EUP+ provides ±15kV Human Body Model (HBM) ESD protection specifically on all I/O VCC pins (pins 12–18 and 20), as documented in the Electrical Characteristics and Detailed Description sections. This protection is built-in and functional in all operating states - normal, three-state, and shutdown - with no latch-up observed after ESD events. I/O VL pins do not carry the same rated protection; external measures may be needed if VL-side exposure is severe.

How does the EN pin function in MAX3002EUP+, and what is its behavior during shutdown?

In MAX3002EUP+, the EN pin is active-high. When pulled low, it places all eight I/O VCC pins (12–18, 20) into high-impedance three-state mode while applying internal 6kΩ pulldown resistors to all eight I/O VL pins (1, 3–9). This configuration isolates the VCC domain and ensures defined logic-low states on the VL side. Supply current drops to <0.1µA total (VCC + VL), enabling ultra-low-power sleep modes essential for battery-operated devices using MAX3002EUP+.

Can MAX3002EUP+ operate with VL greater than VCC, and what happens during power-up sequencing?

MAX3002EUP+ tolerates VL ≥ VCC during power-up without damage, as explicitly stated in the Absolute Maximum Ratings note and Detailed Description. However, for correct logic-level translation, VL must be ≤ VCC during normal operation. During VL-first power-up, up to 10mA can be sourced to each VL-side load without latch-up. This robust sequencing behavior simplifies system power management and eliminates need for strict supply-rail ramp ordering when deploying MAX3002EUP+ in complex multirail portable systems.