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Maxim Integrated Semiconductor Electronic Components Datasheet

MAXQ7665C Datasheet

16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems

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19-3217; Rev 0; 3/08
www.DataSheetE4UVA.AcLoVUmAAILTAIOBNLEKIT
16-Bit RISC Microcontroller-Based
Smart Data-Acquisition Systems
General Description
The MAXQ7665A–MAXQ7665D smart systems-on-a-chip
(SoC) are data-acquisition systems based on a micro-
controller (µC). As members of the MAXQ® family of 16-
bit, reduced instruction set computing (RISC) µCs, the
MAXQ7665A–MAXQ7665D are ideal for low-cost, low-
power, embedded applications such as automotive,
industrial controls, and building automation. The flexible,
modular architecture design used in these µCs allows
development of targeted products for specific applica-
tions with minimal effort.
The MAXQ7665A–MAXQ7665D incorporate a high-per-
formance 16-bit RISC core, a 12-bit 500ksps SAR ADC
with a programmable gain amplifier (PGA), and a full
CAN 2.0B controller supporting transfer rates up to
1Mbps. These devices include a 12-bit DAC with a
buffered voltage output and on-chip oscillator circuitry
to operate from an external high frequency (8MHz)
crystal. There is also a built-in internal RC oscillator as
an alternative to using an external crystal. The
MAXQ7665A–MAXQ7665D contain an internal tempera-
ture sensor to measure die temperature and a remote
temperature-sensor driver. The analog functions and
digital I/O are powered from a +5V supply, while the
internal digital core is powered from +3.3V, which can
be supplied by an on-chip linear regulator. These
devices also include a dual power-supply supervisor
with reset and a JTAG interface for in-system program-
ming and debugging. The 16-bit RISC µC includes up
to 128KB (64K x 16) of flash memory and 512 bytes
(256 x 16) of RAM.
The MAXQ7665A–MAXQ7665D are available in a 7mm x
7mm 48-pin TQFN package and are specified to operate
from -40°C to +125°C.
Applications
Automotive Steering Sensors
CAN- and LIN-Based Automotive Sensors
Industrial Control
Features
High-Performance, Low-Power, 16-Bit RISC Core
DC-to-8MHz Operation, Approaching 1MIPS per MHz
Low Power (< 3mA/MIPS, DVDD = +3.3V)
16-Bit Instruction Word, 16-Bit Data Bus
33 Instructions (Most Require Only One Clock Cycle)
16-Level Hardware Stack
Three Independent Data Pointers with Automatic
Increment/Decrement
Program and Data Memory
Up to 128KB (64K x 16) Internal Flash
512 Bytes (256 x 16) Internal RAM
Smart Analog Peripherals
Low-Power, Eight Differential-Channel,
12-Bit, 500ksps ADC
Programmable-Gain Amplifier, Software-Selectable Gain:
1V/V, 2V/V, 4V/V, 8V/V, 16V/V, 32V/V
12-Bit DAC with Buffered Voltage Output
External References for ADC and DAC
Internal (Die) and External Diode Temperature Sensing
Timer/Digital I/O Peripherals
Full CAN 2.0B Controller
15 Message Centers (256-Byte Dual Port Memory)
Programmable Bit Rates from 10kbps to 1Mbps
Standard 11-Bit or Extended 29-Bit Identification
Modes
Two Data Masks and Associated IDs for DeviceNET™,
SDS and Other Higher Layer CAN Protocols
External Transmit Disable for Autobaud
SIESTA Low-Power Mode
Wake-Up on CANRXD Edge Transition
UART (LIN) with User-Programmable Baud Rate
16 x 16 Hardware Multiplier with 48-Bit Accumulator,
Single Clock Cycle Operation
Three 16-Bit (or Six 8-Bit) Programmable
Timer/Counter/PWM
Eight General-Purpose, Digital I/O Pins, with External
Interrupt Capability
All Interrupts Can Be Used as a Wake-Up
Crystal/Clock Module
Internal Oscillator for Use with External Crystal
On-Chip RC Oscillator Eliminates External Crystal
External Clock-Source Operation
Programmable Watchdog Timer
Power-Management Module
Power-On Reset (POR)
Power-Supply Supervisor/Brownout Detection for Digital
I/O and Digital Core Supplies
On-Chip +3.3V, 50mA Linear Regulator
JTAG Interface
Extensive Debug and Emulation Support
In-System Test Capability
Flash-Memory-Program Download
Software Bootstrap Loader for Flash Programming
Ultra-Low-Power Consumption
Low-Power, Divide-by-256 PMM Mode
Stop Mode
Ordering Information/Selector Guide and Pin Configuration
appear at end of data sheet.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
DeviceNet is a trademark of Open DeviceNet Vendor Association, 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.
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAXQ7665C Datasheet

16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems

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16-Bit RISC Microcontroller-Based
Smart Data-Acquisition Systems
ABSOLUTE MAXIMUM RATINGS
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
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
(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)
PARAMETER
POWER REQUIRMENTS
Supply Voltage Range
AVDD Supply Current
SYMBOL
CONDITIONS
DVDD
AVDD
DVDDIO
IAVDD
Safe mode (RC/2 = 3.8MHz)
Normal mode
Shutdown (Note 2)
All analog functions enabled
MIN TYP MAX UNITS
2.7 3.3 3.6
3.0 3.3 3.6
4.75 5.0 5.25
V
4.75 5.0 5.25
0.1 10
µA
6.7 8
mA
ADC enabled, fADC = 1ksps, fSYSCLK =
8MHz
4.2
Analog Module Subfunction
Incremental Supply Current
ADC enabled, fADC = 500ksps, fSYSCLK =
8MHz
DAC enabled (zero scale)
Internal temperature sensor enabled
1890
305
502
µA
Additional current when one or more of the
ADC, DAC, and/or temperature sensor is
enabled (only counted once)
128
DVDD Supply Current
DVDD Module Subfunction
Incremental Supply Current
DVDDIO Supply Current
IDVDD
IDVDDIO
PGA enabled
CPU in stop mode, all peripherals disabled
Medium-speed mode (Note 3)
High-speed mode (Note 4)
Low-speed mode (Note 5)
Flash erase or write mode
DVDD supervisor and brownout monitor
HF crystal oscillator
Internal RC oscillator
All digital I/Os static at GND or DVDDIO
(Note 6)
4.5
3 20
5
28
2
35 50
2
150
200
10
1000
mA
µA
mA
µA
µA
2 ________________________________________________________________________________________


Part Number MAXQ7665C
Description 16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems
Maker Maxim Integrated Products
Total Page 30 Pages
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