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NJU3102 Datasheet(PDF) 3 Page - New Japan Radio

Part No. NJU3102
Description  4-BIT SINGLE CHIP TINY CONTROLLER
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Maker  NJRC [New Japan Radio]
Homepage  http://www.njr.co.jp/index_e.htm
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NJU3102 Datasheet(HTML) 3 Page - New Japan Radio

 
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NJU3102
3 /3
n TERMINAL DESCRIPTION
No. SYMBOL
INPUT/OUTPUT
F U N C T I O N
4
5
6
7
PA0
PA1
PA2
PA3
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
4-bit Input / Output PORTA.
Selects a terminal circuit for PORT grouped with 4 lines from
follows by the mask option.
· C-MOS Input Terminal with Pull-up Resistance(IA)
· C-MOS Input Terminal(IC)
· C-MOS Output Terminal(OB)
8
TEST
INPUT
Maker Testing Terminal with Pull-down Resistance
The terminal is recommended to connect to GND.
9
10
OSC1
OSC2
INPUT
(OUTPUT)
Internal Oscillator Terminals.
Connects a device selected from the ceramic or the crystal
resonator, or the resistor, to these terminals for the internal
oscillator.
In the external clock operation, OSC1 is the external clock
input terminal and OSC2 is normally open terminal.
11
VSS
Power Source (0V)
12
RESET
INPUT
RESET Terminal.
When the low level input-signal, the system is initialized.
13
14
15
16
PB0
PB1
PB2
PB3
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
4-bit Input / Output PORTB.
Selects a terminal circuit for PORT grouped with 4 lines from
follows by the mask option.
· C-MOS Input Terminal with Pull-up Resistance(IA)
· C-MOS Input Terminal(IC)
· C-MOS Output Terminal(OB)
17
18
PC0
PC1
INPUT/OUTPUT
2-bit Input / Output PORTC.
Selects a terminal circuit for PORT grouped with 2 lines from
follows by the mask option.
· C-MOS Input Terminal with Pull-up Resistance(IA)
· C-MOS Input Terminal(IC)
· C-MOS Output Terminal(OB)
When the ports are selected as the input terminal, PC0
operates also as RESTART signal input terminal to return
from STANDBY mode, and PC1 operates also as the Edge
Detector Terminal.
19
20
21
1
PD0
PD1
PD2
PD3
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
4-bit Input / Output PORTD.
Selects a terminal circuit for PORT grouped with 4 lines from
follows by the mask option.
· C-MOS Input Terminal with Pull-up Resistance(IA)
· C-MOS Input Terminal(IC)
· Nch-FET
Open-Drain Output Terminal with Pull-up
Resistance(OA)
· Nch-FET Open-Drain Output Terminal(OC)
2
3
PE0
PE1
INPUT/OUTPUT
INPUT/OUTPUT
2-bit Input / Output PORTE.
Selects a terminal circuit for PORT grouped with 2 lines from
follows by the mask option.
· C-MOS
Schmitt
Trigger
Input
Terminal
with
Pull-upResistance(IB)
· C-MOS Schmitt Trigger Input Terminal(ID)
· C-MOS Output Terminal(OB)
22
VDD
Power Source (2.4V to 5.5V)
Note )
INPUT/OUTPUT : Input or Output is selected by the mask option.


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