EM78P173N
8-Bit Microcontroller with OTP ROM
4
Pin Description
4.1 EM78P173N-14PIN
Name
P50~P52
P53
Function
P50~P52
P53
P60
/INT
P61
P61
P62
TCC
P63//RESET
P63
/RESET
P64
P64/OSCO/RCOUT OSCO
RCOUT
P65
P65/OSCI/ERCin
OSCI
ERCin
P66~P67
VDD
VSS
P66~P67
VDD
VSS
Input
Type
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
−
−
Output
Type
CMOS
CMOS
CMOS
−
CMOS
CMOS
−
CMOS
−
CMOS
XTAL
CMOS
CMOS
−
−
CMOS
−
−
Description
Bidirectional I/O pin with programmable
pull-down.
Bidirectional I/O pin
Bidirectional I/O pin with programmable
pull-down, open-drain, pull-high and pin
change wake-up.
External interrupt pin
Bidirectional I/O pin with programmable
pull-down, open-drain, pull-high and pin
change wake-up.
Bidirectional I/O pin with programmable
pull-down, open-drain, pull-high and pin
change wake-up.
Real Time Clock/Counter clock input
Bidirectional I/O pin with programmable
pull-down and pin change wake-up.
Internal pull-high reset pin
Bidirectional I/O pin with programmable
open-drain, pull-high and pin change
wake-up.
Clock output of crystal/ resonator oscillator
Clock output of internal RC oscillator
Clock output of external RC oscillator
(open-drain)
Bidirectional I/O pin with programmable
open-drain, pull-high and pin change
wake-up.
Clock input of crystal/resonator oscillator
External RC input pin
Bidirectional I/O pin with programmable
open-drain, pull-high and pin change
wake-up.
Power
Ground
P60//INT
P62/TCC
ST
XTAL
AN
ST
Power
Power
Legend:
ST: Schmitt Trigger input, AN: analog pin, CMOS: CMOS output,
XTAL: oscillation pin for
crystal/ resonator
Product Specification (V1.0) 04.20.2010
(This specification is subject to change without further notice)
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3
EMC [ ELAN MICROELECTRONICS CORP ]
