53
ATtiny15L
1187H–AVR–09/07
In Normal mode, this pin can serve as the external counter clock input. See the
Timer/Counter0 description for further details. If external Timer/Counter clocking is
selected, activity on this pin will clock the counter even if it is configured as an output.
• MISO/OC1A/AIN1 – PORT B, Bit 1
In Serial Programming mode, this pin serves as the serial data output, MISO.
In Normal mode, this pin can serve as Timer/Counter1 output compare match output
(OC1A). See the Timer/Counter1 description for further details, and how to enable the
output. The OC1A pin is also the output pin for PWM mode timer function.
This pin also serves as the negative input of the On-chip Analog Comparator.
• MOSI/AIN0/AREF – PORT B, Bit 0
In Serial Programming mode, this pin serves as the serial data input, MOSI.
In Normal mode, this pin also serves as the positive input of the On-chip Analog
Comparator.
In ATtiny15L, this pin can be chosen to be the reference voltage for the ADC. Refer to
the section “The Analog-to-Digital Converter, Analog Multiplexer, and Gain Stages” for
details.
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