PCA84C122A PHILIPS [NXP Semiconductors], PCA84C122A Datasheet - Page 7

• Manufacturer Part Number: PCA84C122A
• Description: 8-bit microcontrollers for remote control transmitters
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
6.2
Table 1 Pin description for PCA84CX22AP, PCA84CX22AT, PCA84CX22BP, PCA84CX22BT and PCA84CX22CT
7
After Power-on-reset, Port 0 is reset to LOW; Port 1, Port 2 and OUT are reset to HIGH.
1995 May 01
P00 to P07
P10 to P17
P20 to P23
T0/INT
T1
RESET
XTAL1
XTAL2
OUT
V
V
SYMBOL
DD
SS
All Port lines are standard I/O (option 1).
RESET (Power-on-reset) level of 1.3 V.
8-bit microcontrollers for
remote control transmitters
POWER-ON-RESET STATUS AND PORT OPTIONS
Pin description
3, 2, 23, 22,
10, 11, 14, 15
19, 18, 17, 16,
1, 22, 12, 13
4
5
6
9
8
21
7
20
SDIP24/SO24
(see Fig.3)
4, 3, 26, 25,
11, 12, 17, 18
22, 21, 20,19,
2, 27, 13, 16
14, 15, 1, 28
5
6
7
10
9
24
8
23
(see Fig.4)
SO28
PIN
2, 1, 20, 19, 9,
10, 11, 12
16, 15, 14, 13
3
4
5
8
7
18
6
17
(see Fig.5)
SO20
7
7, 6, 5, 4, 14,
15, 16, 17
1, 20,19, 18
8
9
10
13
12
3
11
2
PCA84C122; 222; 422; 622; 822
(see Fig.6)
DIP20
standard I/O Port lines, generally
used for keypad scanning
standard I/O Port lines, generally
used for keypad sensing
standard I/O Port lines, generally
used for visible LED’s
test T0 and external interrupt input
test T1 input
active HIGH reset;
normally connected to V
For further information see
PCF84CXXXA description in
“Data Handbook IC14” .
crystal or ceramic resonator
pulse train output pin, capable of
sinking 27 mA
power supply
ground
DESCRIPTION
Product specification
SS
.