MAXQ61CA MAXIM [Maxim Integrated Products], MAXQ61CA Datasheet

MAXQ61CA

Manufacturer Part Number

MAXQ61CA

Description

16-Bit Microcontroller with Infrared Module

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAXQ61CA.pdf (27 pages)

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19-5231; Rev 0; 4/10

The MAXQ61C is a low-power, 16-bit MAXQ

controller 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 includ-

ing two universal synchronous/asynchronous receiver-

transmitters (USARTs) and an SPI™ master/slave com-

munications port, along with an IR module with carrier

frequency generation and flexible port I/O capable of

multiplexed keypad control.

The device includes 80KB of ROM memory and 2KB of

data SRAM.

For the ultimate in low-power battery-operated perfor-

mance, the device includes an ultra-low-power stop

mode (0.2µA typ). In this mode, the minimum amount of

circuitry is powered. Wake-up sources include external

interrupts, the power-fail interrupt, and a timer interrupt.

The microcontroller runs from a wide 1.70V to 3.6V oper-

ating voltage.

Note: Contact the factory for information about masked ROM devices.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

MAXQ is a registered trademark of Maxim Integrated Products, Inc.

SPI is a trademark of Motorola, Inc.

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.maxim-ic.com/errata.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAXQ61CA-xxxx+

MAXQ61CE-xxxx+

MAXQ61CJ-xxxx+

MAXQ61CK-xxxx+

MAXQ61CX-xxxx+

Remote Controls

Battery-Powered Portable Equipment

Consumer Electronics

Home Appliances

White Goods

PART

16-Bit Microcontroller with Infrared Module

_______________________________________________________________ Maxim Integrated Products 1

TEMP RANGE

0NC to +70NC

General Description

Applications

VOLTAGE (V)

OPERATING

1.7 to 3.6

micro-

MEMORY (KB)

PROGRAM

80 ROM

Ordering Information/Selector Guide

High-Performance, Low-Power, 16-Bit RISC Core

DC to 12MHz Operation Across Entire Operating Range

1.70V to 3.6V Operating Voltage

33 Total Instructions for Simplified Programming

Three Independent Data Pointers Accelerate Data

Movement with Automatic Increment/Decrement

Dedicated Pointer for Direct Read from Code Space

16-Bit Instruction Word, 16-Bit Data Bus

16 x 16-Bit General-Purpose Working Registers

Memory Features

Additional Peripherals

Low Power Consumption

80KB Application ROM

2KB Data SRAM

Power-Fail Warning

Power-On Reset (POR)/Brownout Reset

Automatic IR Carrier Frequency Generation and

Two 16-Bit Programmable Timers/Counters with

One SPI Port and Two USART Ports

Programmable Watchdog Timer

8kHz Nanopower Ring Oscillator Wake-Up Timer

Up to 32 General-Purpose I/Os (J, K, and X

0.2µA (typ), 2.0µA (max) in Stop Mode,

2.0mA (typ) at 12MHz in Active Mode

Modulation

Prescaler and Capture/Compare

Versions Only)

MEMORY (KB)

= +25NC, Power-Fail Monitor Disabled

DATA

GPIO

PIN-PACKAGE

32 TQFN-EP*

32 LQFP

44 TQFN-EP*

44 TQFP

Bare die

Features

Related parts for MAXQ61CA

MAXQ61CA Summary of contents

Page 1

... The microcontroller runs from a wide 1.70V to 3.6V oper- ating voltage. Applications Remote Controls Battery-Powered Portable Equipment Consumer Electronics Home Appliances White Goods PART TEMP RANGE MAXQ61CA-xxxx+ 0NC to +70NC MAXQ61CE-xxxx+ 0NC to +70NC MAXQ61CJ-xxxx+ 0NC to +70NC MAXQ61CK-xxxx+ 0NC to +70NC MAXQ61CX-xxxx+ 0NC to +70NC Note: Contact the factory for information about masked ROM devices. ...

Page 2

Microcontroller with Infrared Module Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

Microcontroller with Infrared Module Figure 1. IR Transmit Frequency Shifting Example (IRCFME = ...

Page 4

Microcontroller with Infrared Module ABSOLUTE MAXIMUM RATINGS Voltage Range on V with Respect to GND .....-0.3V to +3.6V DD Voltage Range on Any Lead with Respect to GND Except V ............... -0. Continuous Power Dissipation (T ...

Page 5

Microcontroller with Infrared Module RECOMMENDED OPERATING CONDITIONS (continued 3.6V 0NC to +70NC, unless otherwise noted.) (Note 1) DD RST A PARAMETER SYMBOL IRRX Input Filter Pulse-Width t IRRX_R Reject IRRX Input Filter Pulse-Width ...

Page 6

Microcontroller with Infrared Module SPI ELECTRICAL CHARACTERISTICS ( 3.6V 0NC to +70NC, unless otherwise noted.) (Note 9) DD RST A PARAMETER SPI Master Operating Frequency SPI Slave Operating Frequency SPI I/O Rise/Fall Time SCLK ...

Page 7

Microcontroller with Infrared Module TOP VIEW P1.3/INT3 25 P1.4/INT4 26 P1.5/INT5 27 28 P1.6/INT6 MAXQ61C 29 P1.7/INT7 30 GND EP 31 IRTX + 32 IRRX ...

Page 8

Microcontroller with Infrared Module TOP VIEW P1.1/INT1 P1.2/INT2 P1.3/INT3 P1.4/INT4 P1.5/INT5 P1.6/INT6 P1.7/INT7 GND IRTX IRRX P0.0/IRTXM NOTE: CONTACT FACTORY FOR BARE DIE PAD CONFIGURATION. 8 ______________________________________________________________________________________ Pin Configurations (continued ...

Page 9

Microcontroller with Infrared Module PIN 32 TQFN- 44 TQFN- BARE DIE EP/LQFP EP/TQFP 27, 40 17 — — — ...

Page 10

Microcontroller with Infrared Module PIN 32 TQFN- 44 TQFN- BARE DIE EP/LQFP EP/TQFP GENERAL-PURPOSE I/O AND SPECIAL FUNCTION PINS ...

Page 11

Microcontroller with Infrared Module PIN 32 TQFN- 44 TQFN- BARE DIE EP/LQFP EP/TQFP 9 — — — — — ...

Page 12

Microcontroller with Infrared Module Block Diagram MAXQ61C 16-BIT MAXQ REGULATOR RISC CPU 80KB VOLTAGE CLOCK MONITOR USER ROM 1.5KB GPIO WATCHDOG UTILITY ROM 2x 8kHz NANO 2KB 16-BIT TIMER RING DATA SRAM Detailed Description The MAXQ61C provides integrated, low-cost ...

Page 13

Microcontroller with Infrared Module The device provides a soft stack that can be used to store program return addresses (for subroutine calls and interrupt handling) and other general-purpose data. This soft stack is located in the 2KB SRAM data ...

Page 14

Microcontroller with Infrared Module The IR timer is composed of a carrier generator and a carrier modulator. The carrier generation module uses the 16-bit IR carrier register (IRCA) to define the high and low time of the carrier through ...

Page 15

Microcontroller with Infrared Module IRCA IRCA = 0202h IRMT IRMT = 3 CARRIER OUTPUT (IRV) IRDATA INTERRUPT IRTX IRTXPOL = 1 IRTX IRTXPOL = 0 Figure 1. IR Transmit Frequency Shifting Example (IRCFME = 0) IRCLK ...

Page 16

Microcontroller with Infrared Module IR Transmit—Independent External Carrier and Modulator Outputs The normal transmit mode modulates the carrier based upon the IRDATA bit. However, the user has the option to input the modulator (envelope external pin if ...

Page 17

Microcontroller with Infrared Module CARRIER GENERATION IRCLK IRCAH + 1 IRRX PIN EDGE DETECT Figure 5. IR Capture When configured in receive mode (IRMODE = 0), the IR hardware supports the IRRX capture function. The IRRXSEL[1:0] bits define which ...

Page 18

Microcontroller with Infrared Module CARRIER FREQUENCY IRMT = PULSE COUNTING CALCULATION IRRX IRV IRMT CAPTURE INTERRUPT (IRIF = 1 IRV ≥ IRMT. IRV = 0 (IF IRXRL = 1). SOFTWARE ...

Page 19

Microcontroller with Infrared Module The device provides two USART peripherals with the fol- lowing features: • 2-wire interface • Full-duplex operation for asynchronous data transfers • Half-duplex operation for synchronous data transfers • Programmable interrupt when transmit or receive ...

Page 20

Microcontroller with Infrared Module SHIFT SSEL t SSE SCLK CKPOL/CKPHA 0/1 OR 1/0 SCLK CKPOL/CKPHA 0/0 OR 1/1 MOSI MISO Figure 8. SPI Slave Communication Timing General-Purpose I/O The microcontroller provides port pins for general-pur- pose I/O that have ...

Page 21

Microcontroller with Infrared Module Operating Modes The lowest power mode of operation is stop mode. In this mode, CPU state and memories are preserved, but the CPU is not actively running. Wake-up sources include external I/O interrupts, the power-fail ...

Page 22

Microcontroller with Infrared Module Table 3. Power-Fail Detection States During Normal Operation INTERNAL STATE POWER-FAIL REGULATOR A On Off Off (Periodically ...

Page 23

Microcontroller with Infrared Module V t < PFW V RST B V POR STOP INTERNAL RESET (ACTIVE HIGH) Figure 11. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled Table 4. Stop Mode Power-Fail Detection ...

Page 24

Microcontroller with Infrared Module PFW B V RST V POR STOP INTERNAL RESET (ACTIVE HIGH) INTERRUPT Figure 12. Stop Mode Power-Fail Detection with Power-Fail Monitor Disabled Table 5. Stop Mode Power-Fail Detection States with Power-Fail ...

Page 25

Microcontroller with Infrared Module Table 5. Stop Mode Power-Fail Detection States with Power-Fail Monitor Disabled (continued) INTERNAL STATE POWER-FAIL REGULATOR D Off Off On E Off (Periodically) F Off Off Applications Information The low-power, high-performance RISC architecture of this ...

Page 26

Microcontroller with Infrared Module Deviations from the MAXQ610 User’s Guide for the MAXQ61C The MAXQ610 User’s Guide contains all the informa- tion that is needed to develop application code for the MAXQ61C microcontroller. However, even though the MAXQ610 and ...

Page 27

Microcontroller with Infrared Module REVISION REVISION NUMBER DATE 0 4/10 Initial release Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the ...

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