MAXQ622 Maxim, MAXQ622 Datasheet
MAXQ622
Available stocks
Related parts for MAXQ622
MAXQ622 Summary of contents
Page 1
... C) bus. The devices also incorporate an IR module with carrier frequency generation and flexible port I/O capable of multiplexed keypad control. The MAXQ622 adds a universal serial bus (USB) with integrated physical interface (PHY). The MAXQ612/MAXQ622 include 128KB of flash memory and 6KB of data SRAM. Intellectual property (IP) protection is ...
Page 2
... Carrier Burst-Count Mode 16-Bit Timers/Counters General-Purpose I Serial Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 USART Serial Peripheral Interface (SPI Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 USB Controller (MAXQ622 Only On-Chip Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 ROM Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Loading Flash Memory In-Application Flash Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 In-Circuit Debug and JTAG Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Power-Supply Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Stop Mode Power-Fail Warning ...
Page 3
... Figure 5. Power-Fail Detection During Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Figure 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 7. Stop Mode Power-Fail Detection with Power-Fail Monitor Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Table 1. Memory Areas and Associated Maximum Privilege Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 2. Watchdog Interrupt Timeout (Sysclk = 12MHz, CD[1: Table 3. USART Mode Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 4 ...
Page 4
... All I/O Pins Combined .....................................................25mA 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 ...
Page 5
Infrared Module and Optional USB RECOMMENDED OPERATING CONDITIONS (continued 3.6V 0NC to +70NC.) (Note 1) DD RST A PARAMETER SYMBOL Input Hysteresis (Schmitt) V IHYS Input Low Voltage for HFXIN V IL_HFXIN Input High ...
Page 6
Microcontrollers with Infrared Module and Optional USB RECOMMENDED OPERATING CONDITIONS (continued 3.6V 0NC to +70NC.) (Note 1) DD RST A PARAMETER SYMBOL System Clock Period t CK NANOPOWER RING Nanopower Ring Frequency f ...
Page 7
Infrared Module and Optional USB RECOMMENDED OPERATING CONDITIONS (continued 3.6V 0NC to +70NC.) (Note 1) DD RST A PARAMETER SYMBOL Single-Ended Receiver V Threshold Single-Ended Receiver V SEH Hysteresis Differential Output Signal V CRS ...
Page 8
Microcontrollers with Infrared Module and Optional USB RECOMMENDED OPERATING CONDITIONS (continued 3.6V 0NC to +70NC.) (Note 1) DD RST A PARAMETER SYMBOL MOSI_ Input to SCLK_ Sample t SIS Edge Rise/Fall Setup MOSI_ ...
Page 9
... Note 12: The maximum total current, I OH(MAX) maximum specified voltage drop. This does not include the IRTX output. Note 13: External clock frequency must be 12MHz to support USB functionality. Full-speed USB(12Mbps)-required bit-rate accu- racy is Q2500ppm or Q0.25%. This is inclusive of all potential error sources: frequency tolerance, temperature, aging, crystal capacitive loading, board layout, etc ...
Page 10
... SCL signal, it must output the next data bit to the SDA line t 1000 + 250 = 1250ns (according to the standard-mode I Note 25: AC electrical specifications are guaranteed by design and are not production tested. MAXQ612 MAXQ622 Figure 1. Series Resistors (R ) for Protecting Against High-Voltage Spikes S ...
Page 11
Microcontrollers with Infrared Module and Optional USB TOP VIEW P1.1/INT1 34 P1.2/INT2 35 P1.3/INT3 36 P1.4/INT4 37 P1.5/INT5 38 P1.6/INT6 39 P1.7/INT7 40 GND 41 IRTX 42 IRRX 43 + P0.0/IRTXM 44 *EXPOSED PAD. ______________________________________________________________________________________ Pin Configurations P3.4/INT12 22 ...
Page 12
Microcontrollers with Infrared Module and Optional USB TOP VIEW P1.2/INT2 49 P1.3/INT3 50 P1.4/INT4 51 P1.5/INT5 52 P1.6/INT6 53 P1.7/INT7 54 P4.0 55 P4.1 56 P4.2 57 P4.3 58 P4.4 59 P4.5 60 P4.6 61 P4.7 62 GND 63 ...
Page 13
... Microcontrollers with Pin Configurations (continued MAXQ622 LQFP Pin Descriptions—TQFN, LQFP NAME POWER PINS V Supply Voltage DD GND Ground Regulator Capacitor. This pin must be connected to ground through a 1 ...
Page 14
... Microcontrollers with Infrared Module and Optional USB PIN MAXQ612 MAXQ612 MAXQ622 TQFN-EP LQFP LQFP — — 19 — — 16 — — 18 — — 20 — — _____________________________________________________________________________________ Pin Descriptions—TQFN, LQFP (continued) NAME RESET PINS Digital, Active-Low, Reset Input/Output ...
Page 15
... MAXQ612 TQFN-EP LQFP 33 45 P1.0–P1.7; INT0–INT7 FUNCTION MAXQ622 SPECIAL PORT LQFP FUNCTION 2 P0.0 IRTXM 3 P0.1 RX0 4 P0.2 TX0 5 P0.3 RX1/SDA 6 P0.4 TX1/SCL 7 P0.5 TBA0/TBA1 9 P0.6 TBB0 10 P0.7 TBB1 MAXQ622 SPECIAL PORT LQFP FUNCTION 45 P1.0 INT0 48 P1.1 INT1 49 P1.2 INT2 50 P1.3 INT3 51 P1.4 INT4 52 P1.5 INT5 53 P1.6 INT6 54 P1.7 INT7 15 ...
Page 16
... MAXQ612 TQFN LQFP 18 27 P3.0–P3.7; INT8–INT15 FUNCTION MAXQ622 SPECIAL PORT LQFP FUNCTION 11 P2.0 MOSI0 12 P2.1 MISO0 13 P2.2 SCLK0 14 P2.3 SSEL0 41 P2.4 TCK 42 P2.5 TDI 43 P2.6 TMS 44 P2.7 TDO MAXQ622 SPECIAL PORT LQFP FUNCTION 27 P3.0 INT8 28 P3.1 INT9 29 P3.2 INT10 30 P3.3 INT11 31 P3.4 INT12 32 P3.5 INT13 33 P3.6 INT14 34 P3.7 INT15 ...
Page 17
... No Connection. Reserved for future use. Leave these pins unconnected. EXPOSED PAD EP Exposed Pad (TQFN Only). Connect EP to the ground plane. FUNCTION MAXQ622 SPECIAL PORT LQFP FUNCTION 55 P4.0 — 56 P4.1 — 57 P4.2 — 58 P4.3 — 59 P4.4 — 60 P4.5 — 61 P4.6 — 62 P4.7 — MAXQ622 SPECIAL PORT LQFP FUNCTION 37 P5.0 MOSI1 38 P5.1 MISO1 39 P5.2 SCLK1 40 P5.3 SSEL1 17 ...
Page 18
... Microcontrollers with Infrared Module and Optional USB PIN NAME MAXQ612 MAXQ622 23, 30, 45, 8, 30, 45, 73 GND REG18 21 21 RESET 31 31 HFXIN 32 32 HFXOUT — BUS — — — DDB — DDIO 18 _____________________________________________________________________________________ POWER PINS ...
Page 19
... General-Purpose, Digital, I/O, Type D Port; External Edge-Selectable Interrupt. These port pins function as bidirectional I/O pins or as interrupts. All port pins default to three-state mode after a reset. All interrupt functions must be enabled from software. MAXQ612 MAXQ622 ...
Page 20
... MAXQ622 General-Purpose, Digital, I/O, Type C Port. These port pins function as bidirec- tional I/O pins. All port pins default to three-state mode after a reset. MAXQ612 MAXQ622 PORT SPECIAL FUNCTION P2.0 MOSI0 P2 ...
Page 21
... The MAXQ core has the industry’s best MIPS/mA rating, allowing developers to achieve the same performance as competing microcontrollers at substantially lower clock rates. Lower active-mode cur- rent combined with the even lower MAXQ612/MAXQ622 stop-mode current results in increased battery life. IR application-specific peripherals include flexible timers ______________________________________________________________________________________ 16-Bit Microcontrollers with Pin Descriptions— ...
Page 22
... Memory protection is implemented using privilege levels for code. Each area has an associated privilege level. RAM/ROM are assigned privilege levels as well. Refer to the MAXQ622 User’s Guide for a more thorough expla- nation of the topic. A 16-bit-wide internal stack provides storage for pro- gram return addresses and can also be used for general- purpose data storage ...
Page 23
... Routines within the utility ROM are user accessible and can be called as subroutines by the application software. More information on the utility ROM functions is contained in the MAXQ622 User’s Guide. Some applications require protection against unau- thorized viewing of program code memory. For these ...
Page 24
Microcontrollers with Infrared Module and Optional USB 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 ...
Page 25
... I/O pins when the special functions are disabled. For a detailed description of the special functions avail- able for each pin, refer to the IC-specific user’s guide, e.g., the MAXQ622 User’s Guide describes all special functions available on the MAXQ612/MAXQ622. The microcontroller supports two independent USARTs, two SPI master/slave communications ports, and an I bus ...
Page 26
... The maximum SPI master transfer rate is Sysclk/2. When operating as an SPI slave, the MAXQ612/MAXQ622 can support up to Sysclk/4 SPI transfer rate. Data is trans- ferred as an 8-bit or 16-bit value, MSB first. In addition, the SPI module supports configuration of an active SSEL state through the slave active select ...
Page 27
... To minimize system noise on the clock circuitry, the external clock source must meet the maximum rise and fall times and the minimum high and low times specified for the clock source. The external noise can affect the clock generation circuit if these parameters do not meet the specification ...
Page 28
... Microcontrollers with Infrared Module and Optional USB DEBUG SERVICE MAXQ612 ROUTINES MAXQ622 (UTILITY ROM) DEBUG ENGINE TMS CONTROL TAP TCK BREAKPOINT CONTROLLER TDI ADDRESS TDO Figure 4. In-Circuit Debugger master that can either be automatic test equipment or a component that interfaces to a higher level test bus as part of a complete system ...
Page 29
Infrared Module and Optional USB Table 4. Power-Fail Warning Level Selection PFW THRESHOLD PWCN.PFWARNCN[1: mode to minimize power consumption. This feature is enabled using the power-fail monitor disable (PFD) bit in the PWCN register. The reset ...
Page 30
Microcontrollers with Infrared Module and Optional USB Table 5. Power-Fail Detection States During Normal Operation INTERNAL STATE POWER-FAIL REGULATOR A On Off Off (Periodically) G ...
Page 31
Infrared Module and Optional USB V t < PFW V RST B V POR STOP INTERNAL RESET (ACTIVE HIGH) Figure 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled Table 6. Stop Mode Power-Fail Detection ...
Page 32
Microcontrollers with Infrared Module and Optional USB PFW B V RST V POR STOP INTERNAL RESET (ACTIVE HIGH) INTERRUPT Figure 7. Stop Mode Power-Fail Detection with Power-Fail Monitor Disabled Table 7. Stop Mode Power-Fail Detection ...
Page 33
... This MAXQ612/MAXQ622 data sheet, which contains electrical/timing specifications and pin descriptions. • The MAXQ612 /MAXQ622 revision-specific errata sheet (www.maxim-ic.com/errata). • The MAXQ622 User’s Guide, which contains detailed information on features and operation, including pro- gramming. COMMENTS > ...
Page 34
... NANO TXCVR 16-BIT TIMER RING *MAXQ622 ONLY. For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 35
... Added the Pin Descriptions—Bare Die table 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 right to change the circuitry and specifications without notice at any time. ...