My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAXQ618X-0000+
- Part No.:
- MAXQ618X-0000+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Microcontrollers
- Package:
- Die
- Datasheet:
-
MAXQ618X-0000+.pdf
- Description:
- RISC MICROCONTROLLER, 16-BIT, FL
- Quantity:
- Payment:
- Shipping:
Inventory:6,070
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAXQ618X-0000+ from Maxim Integrated is a 16-bit RISC microcontroller with integrated infrared (IR) carrier generation, dual USARTs, SPI interface, and 80KB flash/2KB SRAM, operating from 1.70V to 3.6V at up to 12MHz. It delivers ultra-low-power stop mode (0.2µA typ), 8kHz nanopower ring oscillator wake-up timer, and dedicated IRTX pin capable of 25mA sink current-designed specifically for battery-powered universal remote controls.
For engineers reviewing the MAXQ618X-0000+ datasheet, MAXQ618X-0000+ pinout, MAXQ618X-0000+ application, or MAXQ618X-0000+ equivalent, this page provides verified technical context, validated pin functions, confirmed IR timing capabilities, real-world low-power operating modes, and cross-referenced alternative microcontrollers for remote control and white goods designs.
Technical Context
The MAXQ618X-0000+ implements Maxim's pipelined 16-bit MAXQ20S RISC core with Harvard architecture, fixed 16-bit instruction word, and single-cycle execution (83.3ns @ 12MHz). Its IR subsystem includes independent carrier generation (fIR = fCK/2), modulator output (P0.0/IRTXM), and IR receive filtering with 300ns pulse-width acceptance.
Power management integrates POR/brownout reset, programmable power-fail warning (VPFW = 1.8V typ), and stop mode with wake-up via external interrupt, timer, or power-fail event. The 8kHz nanopower ring oscillator enables precise wake-up intervals up to 65,535/fNANO seconds without crystal dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit MAXQ20S RISC, Harvard memory, single-cycle execution at DC–12MHz |
| Memory | 80KB flash (20,000 write/erase cycles, 100-year data retention) + 2KB SRAM |
| IR Capability | Dedicated IRTX output (25mA sink), carrier frequency = system clock / 2, IR receive filter with 300ns minimum pulse acceptance |
| Low-Power Modes | Stop mode current: 0.2µA (typ), 2.0µA (max) at +25°C with power-fail monitor disabled |
| Operating Voltage | 1.70V to 3.6V - supports single-cell Li-ion, two-cell alkaline, or regulated 1.8V/3.3V rails |
| Peripherals | Two 16-bit timers/counters, two USARTs, SPI master/slave, JTAG debug, 32 GPIO with interrupt capability |
| Wake-Up Sources | External interrupts (INT0–INT15), timer interrupt, power-fail interrupt, 8kHz nanopower ring oscillator |
Pinout & Package
TQFN-EP package (7mm × 7mm, 44-pin, exposed pad); RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IRTX (Pin 42) | IR Transmit Output | Open-drain output capable of sinking 25mA; requires external pull-up for active-high modulation; default high-impedance after reset |
| IRRX (Pin 43) | IR Receive Input | Schmitt-trigger input with 50ns pulse-width rejection and 300ns pulse-width acceptance; internal weak pullup disabled by default |
| P0.0/IRTXM (Pin 44) | IR Modulator Output | Direct modulator signal output synchronized to carrier; used for external IR driver stages or custom modulation schemes |
| HFXIN / HFXOUT (Pins 16/17) | High-Frequency Crystal Interface | Supports 12MHz crystal/resonator or external clock source; enables full-speed 12MHz operation with <8192-cycle warmup time |
| RESET (Pin 12) | Active-Low Reset I/O | Open-drain input/output with internal pullup (~25kΩ); asserts internal reset when driven low; drives low during internal reset events |
| VDD / GND (Pins 13,15,27,28,41) | Power Supply & Ground | Multiple VDD/GND pins reduce impedance and improve noise immunity; REGOUT (Pin 14) supplies regulated 1.8V for internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Stop Mode | 0.2µA typical quiescent current enables multi-year battery life in remote controls using coin cells |
| Integrated IR Carrier Generation | Hardware-based carrier frequency derivation (fCK/2) eliminates software timing loops and ensures jitter-free transmission |
| Flexible Wake-Up Timer | 8kHz nanopower ring oscillator enables precise, crystal-free wake-up intervals up to ~8.2 seconds (65,535 cycles) |
| Robust Power Monitoring | Programmable power-fail warning (1.8V/1.9V/2.55V/2.75V) with interrupt and flag support for graceful shutdown or user alert |
| Dual USART + SPI | Two full-duplex USARTs (UART mode, IrDA-compatible) and SPI master/slave enable local sensor interfacing and host communication |
Applications
| Universal Remote Control | Smart Home Appliance Controller |
|---|---|
|
Use Scenario: Battery-powered handheld remote transmitting NEC, RC-5, or custom IR protocols to TVs, set-top boxes, and audio systems. IC Role / Device Role / Timing Role: Primary controller executing IR encoding, key scanning, and low-power state management; IRTX drives IR LED directly at 25mA. Use Value: Eliminates external IR driver IC and crystal; stop mode extends CR2032 battery life beyond 12 months under typical usage. |
Use Scenario: Embedded controller in washing machine UI panel managing keypad scan, display backlight, and motor status reporting via IR or UART. IC Role / Device Role / Timing Role: System-on-chip managing human interface, power monitoring (VPFW), and fault-safe shutdown before brownout. Use Value: Single-chip solution reduces BOM count; power-fail detection triggers EEPROM save and safe door lock before voltage collapse. |
| Portable Consumer Electronics | White Goods Energy Monitor |
|
Use Scenario: Compact IR-enabled media presenter or presentation clicker with motion sensing and Bluetooth coexistence. IC Role / Device Role / Timing Role: Low-voltage (1.7V–3.6V) MCU handling button debouncing, IR packet assembly, and wake-from-sleep on button press. Use Value: Wide supply range accommodates aging batteries; nanopower ring oscillator enables sub-second wake latency without crystal startup delay. |
Use Scenario: Standby power monitor in refrigerator or oven that logs energy consumption and reports via IR to gateway device. IC Role / Device Role / Timing Role: Always-on, ultra-low-power node sampling voltage/current sensors every 10 seconds using stop mode + timer wake-up. Use Value: 0.2µA stop current ensures <1µA average system current; flash memory stores 30 days of timestamped energy data locally. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-IR applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXQ622X-0000+ | Same MAXQ core, 128KB flash, added USB interface, no IRTX 25mA drive - uses external driver for IR | Better suited for USB-connected remotes or firmware-upgradable devices; lacks direct IR LED drive capability | Select when USB connectivity or larger code space outweighs need for integrated high-current IR output |
| STM32L053R8T6 | ARM Cortex-M0+, 64KB flash, 8KB RAM, no native IR carrier generator - requires software-timed carrier or external IR encoder | Higher active performance but higher stop current (0.33µA vs. 0.2µA); needs external components for reliable IR transmission | Select when existing ARM toolchain familiarity or mixed-signal ADC/peripheral integration is prioritized over IR hardware acceleration |
Compared with MAXQ618X-0000+, the MAXQ622X-0000+ trades integrated IR drive for USB and larger memory, while the STM32L053R8T6 offers broader ecosystem support but increases design complexity and power overhead for IR functionality.
Availability
MAXQ618X-0000+ is available at Aetrix Electronics and suitable for universal remote controls, smart appliance interfaces, and battery-powered consumer electronics requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade sourcing.
Supply support for MAXQ618X-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) is a semiconductor leader specializing in precision analog, mixed-signal, and high-reliability microcontrollers for power-constrained and safety-critical applications.
The MAXQ618X-0000+ belongs to the MAXQ family of ultra-low-power 16-bit RISC microcontrollers engineered specifically for infrared remote control, home appliance, and portable consumer electronics where battery life and integration density are paramount.
FAQ
What is the maximum IR carrier frequency supported by the MAXQ618X-0000+?
The MAXQ618X-0000+ generates IR carrier frequencies equal to half the system clock frequency (fIR = fCK/2). With a maximum system clock of 12MHz, the highest supported carrier frequency is 6MHz - sufficient for standard 38kHz, 40kHz, and 56kHz protocols. Carrier generation is fully hardware-assisted and does not consume CPU cycles during transmission.
Does the MAXQ618X-0000+ require an external crystal to operate?
No - the MAXQ618X-0000+ can operate from its internal 8kHz nanopower ring oscillator for low-power wake-up and basic timing, or from an external 12MHz crystal/resonator connected to HFXIN/HFXOUT for full-speed operation. External clock input is also supported on HFXIN with HFXOUT grounded, enabling flexibility in timing source selection.
What is the function of the REGOUT pin on the MAXQ618X-0000+?
The REGOUT pin on the MAXQ618X-0000+ provides a regulated 1.8V output derived from the internal LDO, intended solely for powering external circuitry requiring clean 1.8V bias - such as RF sections or low-voltage sensors. It must be decoupled with a 1.0µF ceramic capacitor placed adjacent to the pin and must not drive loads exceeding 10mA.
Can the MAXQ618X-0000+ drive an IR LED directly without external transistors?
Yes - the IRTX pin (Pin 42) on the MAXQ618X-0000+ is rated for 25mA sink current and is designed to drive standard IR LEDs directly. When paired with a series resistor (e.g., 47Ω for 3.3V supply), it delivers compliant 38kHz-modulated output without external driver stages, reducing BOM cost and board area in remote control designs.
How does the power-fail detection feature work on the MAXQ618X-0000+?
The MAXQ618X-0000+ monitors VDD against a programmable threshold (default 1.8V ±3%). When voltage drops below VPFW, it asserts a power-fail warning flag and optionally triggers an interrupt, allowing firmware to save critical data or alert the user. If voltage continues falling to VRST (1.67V typ), a hardware reset is asserted - ensuring deterministic behavior during brownout conditions.
MAXQ618X-0000+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- Die
- Series:
- MAXQ®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 80KB (80K 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:
MAXQ618X-0000+ FAQ
1.How can I place an order for MAXQ618X-0000+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXQ618X-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 MAXQ618X-0000+ reliable?
The price and inventory of MAXQ618X-0000+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXQ618X-0000+ is usually 5 days.
3.What payment methods are accepted for MAXQ618X-0000+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXQ618X-0000+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXQ618X-0000+?
MAXQ618X-0000+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXQ618X-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 MAXQ618X-0000+?
For technical support, including MAXQ618X-0000+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXQ618X-0000+ requirements.
6.How does Aetrix verify that MAXQ618X-0000+ is sourced from the original manufacturer or authorized distributors?
All MAXQ618X-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 MAXQ618X-0000+ meets industry standards.
7.What is the process for return or replacement of MAXQ618X-0000+?
All MAXQ618X-0000+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXQ618X-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 MAXQ618X-0000+ part is unused and in its original packaging.
Return procedure for MAXQ618X-0000+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAXQ618X-0000+ Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
