EM78159NAS EMC [ELAN Microelectronics Corp], EM78159NAS Datasheet - Page 9
EM78159NAS
Manufacturer Part Number
EM78159NAS
Description
8-Bit Microcontroller with OTP ROM
Manufacturer
EMC [ELAN Microelectronics Corp]
Datasheet
1.EM78159NAS.pdf
(48 pages)
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Product Specification (V1.0) 03.10.2006
(This specification is subject to change without further notice)
VDD
P56/OSCI
P55/OSCO
P54/TCC
/RESET
P50~P53
P60~P67
/INT
VSS
Symbol
3.3
EM78P159NKM Pin Description
Pin No.
19, 20,
15,16
7~14
1, 2
5, 6
18
17
3
4
7
Type
I/O
I/O
I/O
I/O
I/O
-
-
I
I
■ Power supply.
■ General-purpose I/O pin
■ XTAL type: Crystal input terminal or external clock input pin.
■ ERC type: RC oscillator input pin.
■ General-purpose I/O pin
■ XTAL type: Output terminal for crystal oscillator or external clock input pin
■ RC type: Instruction clock output
■ External clock signal input
■ General-purpose I/O pin
■ The real time clock/counter (with Schmitt trigger input pin), must be tied to
■ Input pin with Schmitt trigger. If this pin remains at logic low, the controller
■ P50 ~ P53 are bi-directional I/O pins.
■ P50 and P51 can also be defined as the R-option pins.
■ P50 ~ P53 can be pulled-down by software.
■ P60 ~ P67 are bi-directional I/O pins.
■ These can be pulled-high or can be open-drain by software programming.
■ P60 ~ P63 can also be pulled-down by software
■ External interrupt pin triggered by falling edge
■ Ground
VDD or VSS if not in use.
will also remain in reset condition.
Function
8-Bit Microcontroller with OTP ROM
EM78P159N
• 5
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