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Analog Devices Inc./Maxim Integrated MAXQ610K-0000+
- Part No.:
- MAXQ610K-0000+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- 44-WFQFN Exposed Pad
- Datasheet:
-
MAXQ610K-0000+.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 44TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,275
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Product details
Overview
MAXQ610K-0000+ from Maxim Integrated is a 16-bit RISC microcontroller optimized for infrared-based remote controls and battery-powered consumer electronics. It integrates an IR carrier generation module, two USARTs, SPI master/slave, 64KB flash, 2KB SRAM, and ultra-low-power stop mode (0.2µA typ). Its 1.70V–3.6V operation and 24–32 GPIO support keypad scanning and IR transmission in universal remotes.
For engineers reviewing the MAXQ610K-0000+ datasheet, MAXQ610K-0000+ pinout, MAXQ610K-0000+ application, or MAXQ610K-0000+ equivalent, key selection criteria include IR carrier frequency programmability, secure MMU partitioning for firmware IP protection, nanopower wake-up timer (8kHz ring oscillator), and verified 25mA IRTX sink capability for direct LED drive.
Technical Context
The MAXQ610K-0000+ implements a single-cycle 16-bit MAXQ RISC core operating from DC to 12MHz, delivering ~12MIPS at 12MHz with 33 instructions and three auto-increment/decrement data pointers. Its memory subsystem includes 64KB flash (512-byte sectors, 20,000 erase/write cycles) and 2KB SRAM, managed by a secure MMU supporting multiple privilege levels to isolate application code and data.
IR functionality is hardware-accelerated via dedicated carrier generation and modulation timers, enabling precise burst-count control and independent external IRTXM/IRRX signal paths. Power management includes a 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit MAXQ RISC, DC–12MHz, single-cycle execution (83.3ns @12MHz) |
| Memory | 64KB flash (512B sectors, 20k erase/write cycles) + 2KB SRAM |
| IR Drive Capability | IRTX pin sinks 25mA - directly drives IR LEDs without external transistor |
| Low-Power Stop Mode | 0.2µA typical current (TA = +25°C, power-fail monitor disabled) |
| Operating Voltage | 1.70V–3.6V - supports single-cell Li-ion or dual-cell alkaline battery operation |
| Wake-Up Sources | External interrupts, timer interrupt, power-fail interrupt - enables responsive low-duty-cycle sensing |
| Secure Execution | MMU enforces privilege-level isolation - prevents unauthorized access to protected code/data regions |
Pinout & Package
MAXQ610K-0000+ is packaged in a 44-pin TQFN-EP (exposed pad) with 0°C to +70°C temperature range. The exposed pad has no internal connection and must be left unconnected per datasheet guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (pins 19, 41) | Supply voltage input | Primary power rail; accepts 1.70V–3.6V; decoupling required per layout guidelines |
| GND (pins 17, 20, 28, 42) | Ground reference | Four dedicated ground pins - must connect directly to ground plane for noise immunity |
| IRTX (pin 43) | IR transmit output | Open-drain capable of sinking 25mA - drives IR LED directly; defaults to high-Z after reset |
| IRRX (pin 44) | IR receive input | Schmitt-triggered input with 50ns pulse-width rejection - filters noise while capturing IR bursts |
| HFXIN/HFXOUT (pins 23, 24) | High-frequency crystal interface | Supports 1–12MHz crystal/resonator or external clock - determines system clock source |
| P0.0–P0.7, P1.0–P1.7, P2.0–P2.7, P3.0–P3.7 | General-purpose I/O ports | Up to 32 configurable GPIOs - support keypad matrix scan, interrupt inputs, and peripheral functions (SPI/USART/JTAG) |
Key Features
| Feature | Design Value |
|---|---|
| IR Carrier Generation Module | Hardware-accelerated carrier frequency synthesis (fIR = fCK/2) with burst-count mode - eliminates software timing loops for NEC/RC-5 protocols |
| Nanopower Ring Oscillator | 8kHz ±50% (1.7–20kHz range) wake-up timer consuming only 40–400nA - enables µA-level sleep with sub-second responsiveness |
| Power-Fail Detection | Dual-threshold monitoring (VPFW = 1.8V typ, VRST = 1.67V typ) with 10µs detection latency - allows safe flash write abort before brownout |
| Secure Memory Protection | MMU enforces privilege-level boundaries across flash/SRAM - prevents customer application code from accessing vendor library memory regions |
| Flexible Communication Peripherals | Two USARTs (full-duplex, asynchronous), SPI master/slave, and JTAG debug interface - supports firmware updates, sensor comms, and in-circuit debugging |
Applications
| Universal Remote Controls | Battery-Powered Portable Equipment |
|---|---|
Use Scenario: Consumer-grade universal remote controlling TVs, set-top boxes, and audio systems via IR protocols (NEC, RC-5). IC Role / Device Role / Timing Role: Primary controller executing protocol encoding, keypad scanning, and IR carrier generation with precise burst timing. Use Value: Integrated IRTX (25mA sink) eliminates external driver transistor; stop-mode current (0.2µA) extends coin-cell battery life to >1 year. |
Use Scenario: Handheld medical meters, portable test tools, and smart home sensors powered by AA/AAA batteries. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, display/UI, and low-power wireless wakeup via IR or button press. Use Value: Nanopower ring oscillator (8kHz, 40nA) enables 100ms wake-up intervals with sub-µA average current - critical for multi-year battery life. |
| Home Appliances | White Goods |
Use Scenario: Microwave oven, air conditioner, or washing machine control panels requiring IR receiver and keypad interface. IC Role / Device Role / Timing Role: Front-end microcontroller handling IR command decoding, LED/LCD driver control, and safety-critical state monitoring. Use Value: Power-fail detection (1.8V warning threshold) triggers graceful shutdown and EEPROM save before voltage collapse - prevents configuration loss. |
Use Scenario: Refrigerator, dishwasher, or dryer main control board managing motor drivers, temperature sensors, and user interface. IC Role / Device Role / Timing Role: Embedded controller executing real-time motor sequencing, fault diagnostics, and IR-based service mode entry. Use Value: Secure MMU isolates bootloader and OEM firmware - prevents unauthorized modification of safety-critical motor control algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXQ610B-0000+ | 40-pin TQFN-EP package; 32 GPIOs vs. 32 on MAXQ610K-0000+ (44-pin); identical core/peripherals | Same IR and low-power features but smaller footprint - suitable where PCB area is constrained | Select MAXQ610B-0000+ when board space limits 44-pin TQFN use; verify thermal dissipation with exposed pad grounding. |
| MAXQ610A-0000+ | 32-pin TQFN-EP package; 24 GPIOs; same memory, IR, and power specs as MAXQ610K-0000+ | Fewer I/Os limit keypad matrix size and peripheral expansion - best for simpler remotes with ≤20 keys | Choose MAXQ610A-0000+ for cost-sensitive, compact remotes where 24 GPIOs meet interface requirements. |
Compared with MAXQ610K-0000+, the MAXQ610B-0000+ offers identical functionality in a denser 40-pin package, while the MAXQ610A-0000+ reduces I/O count to 24 for lower-cost implementations - all share the same 64KB flash, IR module, and 0.2µA stop mode.
Availability
MAXQ610K-0000+ is available at Aetrix Electronics and suitable for universal remote controls, battery-powered portable equipment, and white goods requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAXQ610K-0000+ 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, automotive, and consumer applications.
The MAXQ610 product line targets ultra-low-power infrared control systems, combining secure RISC execution, hardware IR acceleration, and nanopower sleep modes for multi-year battery operation in remotes and appliances.
FAQ
What is the maximum IR LED drive current supported by the MAXQ610K-0000+?
The MAXQ610K-0000+ IRTX pin supports up to 25mA sink current at VDD = 3.6V, enabling direct drive of standard IR LEDs without external transistors. This specification is validated across the full 1.70V–3.6V operating range and is documented in the Absolute Maximum Ratings table. Designers should verify thermal derating when operating continuously at max current.
Does the MAXQ610K-0000+ support in-application programming of its flash memory?
Yes, the MAXQ610K-0000+ supports in-application flash programming via its utility ROM interface. Flash erase time is 20–40ms per page, and programming time is 20–100µs per word. The device requires system clock ≤6MHz during flash operations, and power-fail detection must be monitored to prevent corruption during voltage droop.
How does the power-fail detection feature work on the MAXQ610K-0000+?
The MAXQ610K-0000+ includes dual-threshold power-fail detection: VPFW = 1.8V (typ) triggers a warning flag, and VRST = 1.67V (typ) asserts hardware reset. Detection latency is 10µs, and the monitor remains active in stop mode when enabled. This allows firmware to safely abort flash writes and save critical data before brownout.
What is the function of the nanopower ring oscillator in the MAXQ610K-0000+?
The nanopower ring oscillator in the MAXQ610K-0000+ generates an ~8kHz clock (1.7–20kHz range) consuming only 40–400nA. It serves exclusively as a wake-up timer in stop mode, enabling periodic polling or event-driven resume without exiting ultra-low-power state - essential for extending battery life in remote controls.
Is the MAXQ610K-0000+ pin-compatible with other MAXQ610 variants like MAXQ610B-0000+?
No, the MAXQ610K-0000+ (44-pin TQFN) is not pin-compatible with MAXQ610B-0000+ (40-pin TQFN) or MAXQ610A-0000+ (32-pin TQFN). Pin counts, GPIO allocations, and power/ground pin locations differ across packages. Migration requires PCB redesign; however, firmware and peripheral register maps are identical across all MAXQ610 variants.
MAXQ610K-0000+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 44-WFQFN Exposed Pad
- Series:
- MAXQ®
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- MAXQ20S
- Core Size:
- 16-Bit
- Speed:
- 12MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, Infrared, Power-Fail, POR, WDT
- Number of I/O:
- 32
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MAXQ610K-0000+ FAQ
1.How can I place an order for MAXQ610K-0000+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXQ610K-0000+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAXQ610K-0000+ reliable?
The price and inventory of MAXQ610K-0000+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXQ610K-0000+ is usually 5 days.
3.What payment methods are accepted for MAXQ610K-0000+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXQ610K-0000+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXQ610K-0000+?
MAXQ610K-0000+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXQ610K-0000+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAXQ610K-0000+?
For technical support, including MAXQ610K-0000+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXQ610K-0000+ requirements.
6.How does Aetrix verify that MAXQ610K-0000+ is sourced from the original manufacturer or authorized distributors?
All MAXQ610K-0000+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAXQ610K-0000+ meets industry standards.
7.What is the process for return or replacement of MAXQ610K-0000+?
All MAXQ610K-0000+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXQ610K-0000+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAXQ610K-0000+ part is unused and in its original packaging.
Return procedure for MAXQ610K-0000+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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