maxq7666batm Maxim Integrated Products, Inc., maxq7666batm Datasheet - Page 41

• Manufacturer Part Number: maxq7666batm
• Description: 16-bit, Risc, Microcontroller-based, Smart Data-acquisition System
• Manufacturer: Maxim Integrated Products, Inc.

Assert the external RESET input low to enter the reset
state. The external reset functions are described in the
MAXQ7665/MAXQ7666 User’s Guide . Execution
resumes at location 8000h after RESET is released.
The MAXQ7666 requires a crystal with the following
specifications:
Frequency: 8MHz
C
Drive level: 5µW (min)
Series resonance resistance: 300Ω max
Note: Series resonance resistance is the resistance
observed when the resonator is in the series resonant
condition. This is a parameter often stated by quartz
crystal vendors and is called R1. When a resonator is
used in the parallel resonant mode with an external load
capacitance, as is the case with the MAXQ7666 oscilla-
tor circuit, the effective resistance is sometimes stated.
This effective resistance at the loaded frequency of oscil-
lation is:
LOAD
: 6pF (min)
R1 x ( 1 + (C
______________________________________________________________________________________
External System Reset
O
16-Bit, RISC, Microcontroller-Based,
/C
LOAD
Crystal Selection
))
2
Smart Data-Acquisition System
For typical C
tance can be greater than R1 by a factor of 2.
A variety of highly versatile, affordably priced develop-
ment tools for this µC are available from Maxim and
third-party suppliers. These tools include:
• Compilers
• Evaluation kits
• JTAG-to-serial converters for programming and
A list of some development-tool vendors can be found
at www.maxim-ic.com/microcontrollers.
Technical support is available through email at
[e-mail].
debugging
Development and Technical Support
O
and C
LOAD
values, the effective resis-
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