Daewoo 14Q1 User Manual
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PCA84C 122A(IC REMOCON)
(1) Features
• ROM, RAM and I/O is device dependent
• Two test inputs T0, T1
• 3 Single-level vectored interrupt sources
• 8 bit programmable timer/counter with 5-bit pre-scaler
• Single supply voltage from 2.0V to 5.5V
• On-board oscillator 1MHz to 5MHz
• Operating temperature range -20 to +50 C
(2) General Description
The PCA84C122A is a stand-alone micro controller designed for use in remote control unit for a wide
range of applications.
(3) Pin Description
PIN
SIGNAL
DESCRIPTION
3
P00
2
P01
23
P02
22
P03
Standard I/O Port lines, generally used for keypad scanning
10
P04
11
P05
14
P06
15
P07
19
P10
18
P11
17
P12
16
P13
Standard I/O Port lines, generally used for keypad scanning
1
P14
24
P15
12
P16
13
P17
4
TP/INT
Test T0 and external interrupt input
5
T1
Test T1
6
RESET
Active HIGH reset, normally tied to Vss because internal
Power-on reset can serve the same function
8
XTAL 1
Crystal or ceramic resonator
9
XTAL 2
21
OUT
Pulse train output pin, capable of sinking 27mA
7
V
DD
Power supply
20
Vss
Ground