Analog Devices Inc./Maxim Integrated MAXQ610A-9410+

Overview

MAXQ610A-9410+ from Maxim Integrated is a 16-bit RISC microcontroller with integrated infrared (IR) carrier generation, dual USARTs, SPI master/slave interface, and ultra-low-power stop mode (0.2µA typ). It operates from 1.70V to 3.6V, features 64KB flash and 2KB SRAM, and targets battery-powered universal remote controls requiring secure firmware partitioning and IR transmission at up to 12MHz system clock.

For engineers reviewing the MAXQ610A-9410+ datasheet, MAXQ610A-9410+ pinout, MAXQ610A-9410+ application, or MAXQ610A-9410+ equivalent, key selection criteria include IRTX drive capability (25mA sink), secure MMU-based privilege-level memory protection, nanopower wake-up timer (8kHz ring oscillator), and 32-pin TQFN-EP package compatibility with industrial temperature range support.

Technical Context

The MAXQ610A-9410+ implements a single-cycle 16-bit MAXQ RISC core delivering ~12 MIPS at 12MHz, with three independent data pointers and dedicated code-space read pointer for accelerated data movement. Its IR subsystem includes hardware carrier frequency generation (f_IR = f_CK/2), modulation control, and independent IRTX/IRRX pins with configurable input filtering (300ns pulse-width acceptance).

Power management integrates a programmable power-fail monitor (VPFW = 1.8V typ), brownout reset (VRST = 1.67V typ), and stop mode with wake-up via external interrupt, timer, or power-fail event. The on-chip 8kHz nanopower ring oscillator enables wake-up intervals up to 65,535/f_NANO seconds without external components.

Key Specifications

Pinout & Package

MAXQ610A-9410+ is housed in a 32-pin TQFN-EP (5mm × 5mm, 0.5mm pitch) with exposed pad. Pin 1 is top-left corner; EP is unconnected per datasheet. Power sequencing requires VDD (pins 15,29), GND (pins 13,22,30), and REGOUT (pin 14) decoupled with 1.0µF ceramic capacitor.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAXQ610B-9410+, the MAXQ610A-9410+ offers smaller PCB footprint and lower I/O count for cost-sensitive IR remotes; versus MAXQ622-9410+, it provides optimized power efficiency and reduced firmware complexity for dedicated IR control applications without USB requirements.

Availability

MAXQ610A-9410+ is available at Aetrix Electronics and suitable for universal remote controls, battery-powered portable equipment, and home appliance interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAXQ610A-9410+ 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 embedded processing solutions for industrial, medical, and consumer applications.

The MAXQ610 product line delivers ultra-low-power 16-bit microcontrollers with integrated IR subsystems specifically engineered for battery-operated remote control and human-interface devices requiring secure firmware execution and minimal quiescent current.

FAQ

What is the maximum system clock frequency supported by the MAXQ610A-9410+?

The MAXQ610A-9410+ supports DC to 12MHz system clock operation across its full 1.70V–3.6V supply range. This is achieved using either an external crystal/resonator (1–12MHz) connected between HFXIN and HFXOUT, or an external clock signal applied to HFXIN with HFXOUT left unconnected. At 12MHz, the MAXQ610A-9410+ delivers approximately 12MIPS of performance with nearly all instructions executing in a single cycle.

Does the MAXQ610A-9410+ include hardware support for IR carrier generation?

Yes, the MAXQ610A-9410+ integrates dedicated hardware for IR carrier generation and modulation. Its IR module produces carrier frequencies equal to half the system clock (f_IR = f_CK/2), eliminating CPU overhead for carrier timing. The IRTX pin sinks up to 25mA, enabling direct drive of standard IR LEDs without external transistors - a key feature confirmed in the MAXQ610A-9410+ datasheet's electrical characteristics and pin description sections.

What is the typical current consumption of the MAXQ610A-9410+ in stop mode?

The MAXQ610A-9410+ achieves 0.2µA typical current consumption in stop mode when the power-fail monitor is disabled and measured at TA = +25°C. Maximum stop-mode current is specified as 2.0µA under the same conditions. This ultra-low quiescent current enables multi-year battery life in remote control applications, and wake-up is supported via external interrupts, timer events, or power-fail detection - all verified in the MAXQ610A-9410+ Recommended DC Operating Conditions table.

How many general-purpose I/O pins does the MAXQ610A-9410+ provide?

The MAXQ610A-9410+ provides 24 general-purpose I/O pins, consistent with the MAXQ610A variant designation in Maxim's ordering information. These are distributed across Ports P0–P3, with P0 and P1 offering 8 pins each, and P2 and P3 providing partial pin sets (P2.0–P2.3 and P3.0–P3.7, though some are multiplexed with JTAG/SPI functions). All GPIOs default to high-impedance after reset and require explicit software configuration before use - as documented in the MAXQ610A-9410+ Pin Description section.

Is the MAXQ610A-9410+ RoHS-compliant and lead-free?

Yes, the MAXQ610A-9410+ is RoHS-compliant and lead-free, as indicated by the "+" suffix in its part number per Maxim's ordering information. The device uses a 32-pin TQFN-EP package with lead(Pb)-free finish, meeting EU RoHS Directive 2011/65/EU requirements. This compliance is explicitly stated in the "Ordering Information" table of the MAXQ610A-9410+ datasheet and applies to all units shipped with the "+" suffix.