ML66517 Datasheet, PDF (15/28 Pages) OKI electronic componets – 16-Bit Microcontroller

1Semiconductor
PEDL66517-03
ML66517 Family
ML66Q515/ML66514 Pin Descriptions (Continued)
Function
Power supply
Oscillation
Reset
Others
Symbol
V_DD
GND
V_REF
AGND
OSC0
OSC1
CLKSEL0
CLKSEL1
RES
NMI
EA
Type
I
I
I
I
I
O
I
I
I
I
I
Description
Power supply pin
Connect all V_DD pins to the power supply.*
GND pin
Connect all GND pins to GND.*
Analog reference voltage pin
Analog GND pin
Main clock oscillation input pin
Connect to a crystal or ceramic oscillator. Or, input an external
clock.
Main clock oscillation output pin
Connect to a crystal or ceramic oscillator.
The clock output is opposite in phase to OSC0.
Leave this pin unconnected when an external clock is used.
Clock multiplication factor select pin
Clock multiplication factor is selected from source oscillation (PLL
OFF), source oscillation × 2, or source oscillation × 4
Reset input pin
Non-maskable interrupt input pin
External program memory access input pin
If the EA pin is enabled (low level), the internal program memory is
masked and the CPU executes the program code in external
program memory all address space.
* Each of the family devices has unique pattern routes for the internal power and ground. Connect the
power supply voltage to all V_DD pins and the ground potential to all GND pins. If a device may have
one or more V_DD or GND pins to which the power supply voltage or the ground potential is not
connected, it can not be guaranteed for normal operation.
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