em78p164n ELAN Microelectronics Corp, em78p164n Datasheet - Page 10

• Manufacturer Part Number: em78p164n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P164N
8-Bit Microcontroller with OTP ROM
4 •
4.2 EM78P164N − 14 pin
P50~P53
P60~P67
INT
PWM
/RST
CINA-
CINB-
CINC-
CIND-
CIN1+
CO
TCC
OSCI
OSCO
VDD
VSS
Symbol
Pin No.
12~14
8~10
5~7,
2, 3,
10
10
11
1,
9
7
8
3
2
1
9
8
5
6
4
Type
I/O
I/O
O
O
O
–
–
I
I
I
I
I
I
I
I
I
4-bit general purpose input/output pins.
Default value at power-on reset.
Can be pulled-down by software control.
8-bit general purpose input/output pins.
Default value at power-on reset.
Can be pulled-high by software control.
P60~P62 can be pulled-down by software control.
P63 is open drain for output port.
External interrupt pin triggered by a falling edge.
Pulse width modulation output.
General-purpose Input only.
If it remains at logic low, the device will be reset.
Wake-up from sleep mode when pin status changes.
Voltage on /RESET must not exceed Vdd during normal mode.
“-“ : the input pin of Vin- of the comparator.
Select by CMPCON II (RC)
“+” : the input pin of Vin+ of the comparator.
Can use External/Internal Voltage input .
Pin CO is the comparator output.
Set by CMPCON I (RB)
Real time clock/counter with Schmitt Trigger input pin. It must
be tied to VDD or VSS if not in use.
Crystal type: Crystal input terminal or external clock input pin.
RC type: RC oscillator input pin
Crystal type: Output terminal for crystal oscillator or external
RC type: Clock output with a duration of one instruction cycle
The prescaler is determined by the CONT register.
External clock signal input.
Power supply
Ground
(This specification is subject to change without further notice)
clock input pin.
time.
Product Specification (V1.4) 05.28.2010
Function