EM78159NAS EMC [ELAN Microelectronics Corp], EM78159NAS Datasheet - Page 8

• Manufacturer Part Number: EM78159NAS
• Description: 8-Bit Microcontroller with OTP ROM
• Manufacturer: EMC [ELAN Microelectronics Corp]

EM78P159N
8-Bit Microcontrollerwith OTP ROM
4 •
VDD
P56/OSCI
P55/OSCO
P54/TCC
/RESET
P50 ~ P53
P60 ~ P67
/INT
VSS
VDD
P56/OSCI
P55/OSCO
P54/TCC
/RESET
P50~P53
P60~P67
/INT
VSS
Symbol
Symbol
3.1
3-2
EM78P159NP and EM78P159NM Pin Description
Pin No.
EM78P159NAS Pin Description
17, 18,
6 ~ 13
Pin No.
18, 19,
1, 2
7~14
14
16
15
2, 3
3
4
6
5
15
17
16
4
5
7
6
Type
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
I
I
-
-
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
■ 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.
VDD or VSS if not in use.
will also remain in reset condition.
(This specification is subject to change without further notice)
Function
Function
Product Specification (V1.0) 03.10.2006