Rainbow Electronics MAXQ7670 User Manual
Page 2
MAXQ7670
Microcontroller with 10-Bit ADC,
PGA, 64KB Flash, and CAN Interface
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DVDDIO
= +5.0V, V
AVDD
= +3.3V, V
DVDD
= +2.5V, V
REFADC
= +3.3V, system clock = 16MHz. T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +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 ........................................................-0.3V to +3V
DVDDIO to GNDIO ................................................-0.3V to +5.5V
AVDD to AGND ........................................................-0.3V to +4V
DGND to GNDIO. ..................................................-0.3V to +0.3V
GNDIO to AGND. ..................................................-0.3V to +0.3V
AGND to DGND.....................................................-0.3V to +0.3V
Analog Inputs to AGND..........................-0.3V to (V
AVDD
+ 0.3V)
RESET, Digital Inputs/Outputs to
GNDIO ............................................-0.3V to (V
DVDDIO
+ 0.3V)
XIN, XOUT to DGND ..............................-0.3V to (V
DVDD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
40-Pin TQFN (derate 36mW/°C above +70°C) ..........2857mW
Continuous Current into Any Pin.......................................±50mA
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 REQUIREMENTS
DVDD
REGEN2 = DVDDIO, DV
DD
≤ AV
DD
,
DV
DD
≤ DV
DDIO
2.25
2.5
2.75
AVDD
LRAPD = 1, AV
DD
≤ DV
DDIO
3.0
3.3
3.6
Supply Voltage Ranges
DVDDIO
4.5
5.0
5.25
V
Shutdown (Note 2)
3
10
µA
AVDD Supply Current
I
AVDD
All analog functions enabled
6
7
mA
ADC, 50ksps, 4MHz ADCCLK
5200
ADC, 250ksps, 4MHz ADCCLK
5600
AVDD brownout interrupt monitor
3
Analog Module Incremental
Subfunction Supply Current
∆I
AVDD
PGA enabled
5500
µA
CPU in stop mode, all peripherals
disabled
25
200
µA
High speed/2MHz mode (Note 3)
2.0
2.5
High speed/16MHz mode (Note 4)
11.3
Low speed/625kHz mode (Note 5)
0.95
DVDD Supply Current
I
DVDD
Program flash erase or write
14
23
mA
DVDDIO brownout reset monitor
1
HF crystal oscillator
60
Digital Peripheral Incremental
Subfunction Supply Current
∆I
DVDD
Internal fixed-frequency oscillator
50
µA
All digital I/Os static at GNDIO or
DV
DDIO
2
20
µA
DVDDIO Supply Current
I
DVDDIO
CAN transmitting, timer output
switching (Note 6)
0.2
0.3
mA