MAXQ7665B datasheet(2/47 Pages) MAXIM

2 / 47 page

16-Bit RISC Microcontroller-Based

Smart Data-Acquisition Systems

________________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(AVDD = DVDDIO = +5.0V, DVDD = +3.3V, fSYSCLK = 8MHz, VREFDAC = VREFADC = +5V, TA = TMIN to TMAX, unless otherwise noted.

Typical values are at TA = +25°C.) (Note 1)

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.

DVDD to DGND, AGND, or GNDIO ..........................-0.3V to +4V

DGND to GNDIO or AGND....................................-0.3V to +0.3V

DVDDIO to DGND, AGND, or GNDIO .......................-0.3V to +6V

AVDD to DGND, AGND, or GNDIO...........................-0.3V to +6V

Digital Inputs/Outputs to DGND, AGND, or GNDIO

..............................................................-0.3V to (DVDDIO + 0.3V)

Analog Inputs/Outputs to DGND, AGND, or GNDIO

.................................................................-0.3V to (AVDD + 0.3V)

RESET, XIN, XOUT to DGND, AGND, or GNDIO

.................................................................-0.3V to (DVDD + 0.3V)

Continuous Current into Any Pin.......................................±50mA

Continuous Power Dissipation (TA = +70°C)

48-Pin TQFN (derate 40mW/°C above +70°C) ..........3200mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER REQUIRMENTS

Safe mode (RC/2 = 3.8MHz)

2.7

3.3

3.6

DVDD

Normal mode

3.0

3.3

3.6

AVDD

4.75

5.0

5.25

Supply Voltage Range

DVDDIO

4.75

5.0

5.25

Shutdown (Note 2)

0.1

µA

AVDD Supply Current

IAVDD

All analog functions enabled

6.7

ADC enabled, fADC = 1ksps, fSYSCLK =

8MHz

4.2

ADC enabled, fADC = 500ksps, fSYSCLK =

8MHz

1890

DAC enabled (zero scale)

305

Internal temperature sensor enabled

502

Additional current when one or more of the

ADC, DAC, and/or temperature sensor is

enabled (only counted once)

128

µA

Analog Module Subfunction

Incremental Supply Current

PGA enabled

4.5

CPU in stop mode, all peripherals disabled

µA

High-speed mode (Note 3)

DVDD Supply Current

IDVDD

Flash erase or write mode

DVDD supervisor and brownout monitor

HF crystal oscillator

150

DVDD Module Subfunction

Incremental Supply Current

Internal RC oscillator

200

µA

All digital I/Os static at GND or DVDDIO

DVDDIO Supply Current

IDVDDIO

(Note 4)

1000

µA

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