Microcontroller. MAXQ7670 Datasheet

MAXQ7670 Microcontroller. Datasheet pdf. Equivalent

Part MAXQ7670
Description Microcontroller
Feature 19-4384; Rev 0; 11/08 www.DataSheet4U.com Microcontroller with 10-Bit ADC, PGA, 64KB Flash, and CA.
Manufacture Maxim Integrated Products
Datasheet
Download MAXQ7670 Datasheet



MAXQ7670
19-4384; Rev 0; 11/08
www.DataSheet4U.com
Microcontroller with 10-Bit ADC,
PGA, 64KB Flash, and CAN Interface
General Description
The MAXQ7670 is a highly integrated solution for mea-
suring multiple analog signals and outputting the results
on a control area network (CAN) bus. The device oper-
ates from a single 5V supply and incorporates a high-
performance, 16-bit reduced instruction set computing
(RISC) core, a SAR ADC, and a CAN 2.0B controller,
supporting transfer rates up to 1Mbps. The 10-bit SAR
ADC includes an amplifier with programmable gains of
1V/V or 16V/V, 8 input channels, and conversion rates up
to 250ksps. The eight single-ended ADC inputs can be
configured as four unipolar or bipolar, fully differential
inputs. For single-supply operation, the external 5V sup-
ply powers the digital I/Os and two separate integrated
linear regulators that supply the 2.5V digital core and the
3.3V analog circuitry. Each supply rail has a dedicated
power-supply supervisor that provides brownout detec-
tion and power-on reset (POR) functions. The 16-bit RISC
microcontroller (µC) includes 64KB (32K x 16) of non-
volatile program/data flash and 2KB (1K x 16) of data
RAM. Other features of the MAXQ7670 include a 4-wire
SPI™ interface, a JTAG interface for in-system program-
ming and debugging, an integrated 15MHz RC oscilla-
tor, external crystal oscillator support, a timer/counter
with pulse-width modulation (PWM) capability, and seven
GPIO pins with interrupt and wake-up capability.
The system-on-a-chip (SoC) MAXQ7670 is a µC-based,
smart data acquisition system. As a member of the
MAXQ® family of 16-bit, RISC µCs, the MAXQ7670 is
ideal for low-cost, low-power, embedded-applications
such as automotive, industrial controls, and building
automation. The flexible, modular architecture used in
the MAXQ µCs allows development of targeted prod-
ucts for specific applications with minimal effort.
The MAXQ7670 is available in a 40-pin, 5mm x 5mm
TQFN package, and is specified to operate over the -40°C
to +125°C automotive temperature range.
Features
High-Performance, Low-Power, 16-Bit RISC Core
0.166MHz to 16MHz Operation, Approaching
1MIPs/MHz
Low Power (< 1mA/MIPS, VDVDD = +2.5V)
16-Bit Instruction Word, 16-Bit Data Bus
33 Instructions, Most Require Only One Clock
Cycle
16-Level Hardware Stack
16 x 16-Bit, General-Purpose Working Registers
Three Independent Data Pointers with Auto-
Increment/Decrement
Low-Power, Divide-by-256, Power-Management
Modes (PMM) and Stop Mode
Program and Data Memory
64KB Internal Nonvolatile Program/Data Flash
2KB Internal Data RAM
SAR ADC
8 Single-Ended/4 Differential Channels,
10-Bit Resolution with No Missing Codes
PGA Gain = 1V/V or 16V/V
250ksps (150.9ksps with PGA Gain = 16V/V)
Timer/Digital I/O Peripherals
CAN 2.0B Controller (15 Message Centers)
Serial Peripheral Interface (SPI)
JTAG Interface (Extensive Debug and Emulation
Support)
Single 16-Bit/Dual 8-Bit Timer/PWM
Seven General-Purpose, Digital I/O Pins with
External Interrupt/Wake-Up Features
Oscillator/Clock Module
Internal Oscillator Supports External Crystal
(8MHz or 16MHz)
Integrated 15MHz RC Oscillator
External Clock Source Operation
Programmable Watchdog Timer
Power-Management Module
Power-On Reset
Power-Supply Supervisor/Brownout Detection
Integrated +2.5V and +3.3V Linear Regulators
Applications
Automotive Steering Angle and Torque Sensors
CAN-Based Automotive Sensor Applications
Industrial Control
Building Automation
SPI is a trademark of Motorola, Inc.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAXQ7670ATL+ -40°C to +125°C
40 TQFN-EP*
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit and Pin Configuration appear at
end of data sheet.
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:
http://www.maxim-ic.com/errata.
________________________________________________________________ Maxim Integrated Products 1
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.



MAXQ7670
www.DataSheet4U.com
Microcontroller with 10-Bit ADC,
PGA, 64KB Flash, and CAN Interface
ABSOLUTE MAXIMUM RATINGS
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 (VAVDD + 0.3V)
RESET, Digital Inputs/Outputs to
GNDIO ............................................-0.3V to (VDVDDIO + 0.3V)
XIN, XOUT to DGND ..............................-0.3V to (VDVDD + 0.3V)
Continuous Power Dissipation (TA = +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
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.
ELECTRICAL CHARACTERISTICS
(VDVDDIO = +5.0V, VAVDD = +3.3V, VDVDD = +2.5V, VREFADC = +3.3V, system clock = 16MHz. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
POWER REQUIREMENTS
Supply Voltage Ranges
AVDD Supply Current
Analog Module Incremental
Subfunction Supply Current
DVDD Supply Current
Digital Peripheral Incremental
Subfunction Supply Current
DVDDIO Supply Current
SYMBOL
CONDITIONS
DVDD
AVDD
DVDDIO
IAVDD
IAVDD
IDVDD
IDVDD
IDVDDIO
REGEN2 = DVDDIO, DVDD AVDD,
DVDD DVDDIO
LRAPD = 1, AVDD DVDDIO
Shutdown (Note 2)
All analog functions enabled
ADC, 50ksps, 4MHz ADCCLK
ADC, 250ksps, 4MHz ADCCLK
AVDD brownout interrupt monitor
PGA enabled
CPU in stop mode, all peripherals
disabled
High speed/2MHz mode (Note 3)
High speed/16MHz mode (Note 4)
Low speed/625kHz mode (Note 5)
Program flash erase or write
DVDDIO brownout reset monitor
HF crystal oscillator
Internal fixed-frequency oscillator
All digital I/Os static at GNDIO or
DVDDIO
CAN transmitting, timer output
switching (Note 6)
MIN
2.25
3.0
4.5
TYP
2.5
3.3
5.0
3
6
5200
5600
3
5500
25
2.0
11.3
0.95
14
1
60
50
2
0.2
MAX
UNITS
2.75
V
3.6
5.25
10 µA
7 mA
µA
200 µA
2.5
mA
23
µA
20 µA
0.3 mA
2 _______________________________________________________________________________________





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