MAXQ611 Infrared Remote Control System-On-Chip
30Pages

Infrared Remote Control System-On-Chip General Description The MAXQ611 is a low-power, 16-bit MAXQ® microcontroller designed for low-power applications including universal remote controls, consumer electronics, and white goods. The device combines a powerful 16-bit RISC microcontroller and integrated peripherals including a universal synchronous/asynchronous receiver-transmitter (USART), SPI master/slave and I2C communications ports, along with an IR module with carrier frequency generation and flexible port I/O capable of multiplexed keypad control. An internal amplifier eliminates the need for external circuitry to drive the IR receiver pin. The device provides 80KB of flash memory and 2KB of data SRAM. For the ultimate in low-power battery-operated performance, the device includes an ultra-low-power stop mode. In this mode, the minimum amount of circuitry is powered. Wake-up sources include external interrupts, the power-fail interrupt, and a timer interrupt. ●● Universal Remote Controls for Tablets ●● Universal Remote Controls for Smartphones Block Diagram MAXQ611 REGULATOR VOLTAGE MONITOR MAXQ is a registered trademark of Maxim Integrated Products, Inc. ●● High-Performance, Low-Power, 16-Bit RISC Core ●● Internal 12MHz Oscillator Requires No External Components ●● 1.7V to 3.6V Operating Voltage ●● Dedicated Pointer for Direct Read from Code Space ●● 16-Bit Instruction Word, 16-Bit Data Bus ●● Memory Features • 80KB Flash Memory • 2KB Data SRAM ●● Infrared Module Features • IR Learning Circuit • Automatic IR Carrier Frequency Generation and Modulation • IR Transmit Driver with 200mA (min) Sink Current at 1.8V ●● Additional Peripherals • Power-Fail Warning • Power-On Reset (POR)/Brownout Reset • Two 16-Bit Programmable Timers/Counters with Prescaler and Capture/Compare • SPI, I2C, and USART Peripherals • Programmable Watchdog Timer • 8kHz Nanopower Ring Oscillator Wake-Up Timer • Up to 32 (TQFN) or 38 (Bare Die) GPIO ●● Low Power Consumption • 0.15µA (typ), 2.0µA (max) in Stop Mode, TA = +25NC, Power-Fail Monitor Disabled • 2.0mA (typ) at 12MHz in Active Mode Ordering Information/Selector Guide appears at end of data sheet. For documentation and recommended products to use with this part, refer to www.maximintegrated.com/MAXQ611.resources. For related parts, refer to www.maximintegrated.com/MAXQ611.related. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: www.maximintegrated. com/errata.

Infrared Remote Control System-On-Chip TABLE OF CONTENTS General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1...

Infrared Remote Control System-On-Chip TABLE OF CONTENTS (continued) Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 I2C Serial Peripheral Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 I2C Serial...

Infrared Remote Control System-On-Chip Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on...

Infrared Remote Control System-On-Chip Electrical Characteristics (continued) (Limits are 100% tested at TA = +25°C and TA = +85°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization. Specifications marked GBD are guaranteed by design and not production tested.) PARAMETER Power-Fail Warning/Reset Offset SYMBOL VPFWRST Power-On Reset Voltage RAM Data Retention Voltage IS1 Stop Mode Current IS2 Power Consumption During Power-On Reset Stop Mode Resume Time PFWARNCN = 0000, VPFW > VRST Active Current fSYS = 12MHz,...

Infrared Remote Control System-On-Chip Electrical Characteristics (continued) (Limits are 100% tested at TA = +25°C and TA = +85°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization. Specifications marked GBD are guaranteed by design and not production tested.) PARAMETER Input/Output Pin Capacitance for All Port Pins Input Leakage Current for All Pins Input Pullup Resistor for RESET, IRRX, and All Port Pins IR MODULE IRRX Input Filter Pulse-Width Reject IRRX Input Filter Pulse-Width Accept IRTX Sink Current WAKE-UP...

Infrared Remote Control System-On-Chip Supply Voltage. Bypass to ground with a 4.7µF capacitor. Ground. Connect directly to the ground plane. 1.8V Regulator Output. This pin must be connected to ground through a 1.0μF external capacitor. The capacitor should be placed as close to this pin as possible. No devices other than the capacitor should be connected to this pin. Exposed Pad. Connect to GND or leave electrically unconnnected. Digital, Active-Low Reset Input/Output. The device remains in reset while this bidirectional pin is in its active state. When the pin transitions to its...