PCA84C922AP PHILIPS [NXP Semiconductors], PCA84C922AP Datasheet - Page 8

• Manufacturer Part Number: PCA84C922AP
• Description: Microcontrollers for universal infrared remote transmitter applications
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
5.2
Table 2 PCA84C923D (VS056)
1997 Oct 22
P00 to P07
P10
P11
P12
P13
P14 to P17
P20 to P23
DP50 to DP57
DP60 to DP67
RSTO
T0/INT
T1
RESET
XTAL2
XTAL1
INTO
LOUT
EMU
V
V
DD
SS
Microcontrollers for universal infrared
remote transmitter applications
SYMBOL
Pin description
7, 6, 52, 51, 22,
24, 34 and 35
44
41
39
38
4, 55, 26 and 32
27, 29, 3 and 56
25, 23, 17, 15, 14,
12, 9 and 5
28, 31, 33, 40, 42,
43, 45 and 54
1
10
11
13
18
19
30
47
53
16
2 and 46
PIN
Standard I/O Port lines, generally used for keypad scanning or for LSB address
lines of coding table.
Port line 10 or emulation DXWR signal input.
Port line 11 or emulation DXRD signal input.
Port line 12 or emulation DXALE signal input.
Port line 13 or emulation EXDI signal input.
Standard I/O port lines, generally used for keypad sensing, the wake-up function
can be removed by mask option.
Standard I/O port lines with 10 mA sink capability.
Standard I/O port lines, generally used for the data bus of Coding Table.
Standard I/O Port lines, generally used for keypad scanning or for MSB address
lines of Coding Table.
Used for emulation purposes only. This output is the result of the OR operation
carried out internally on the RESET input and the Watchdog Timer reset and is
connected to the RESET pin of the 84C00.
Test pin T0 or external interrupt input.
Test pin T1 or timer/counter input (T1).
Active HIGH reset pin; normally connected to V
same function.
Crystal or ceramic resonator or LC oscillator connections.
Used for emulation purposes only and is connected to the T0/INT pin of the
84C00.
Pulse train output pin, capable of sinking 30 mA.
Emulation mode control pin; for normal operation this pin is connected to V
Power supply.
Ground.
8
DESCRIPTION
PCA84C922; PCA84C923
SS
as Power-on-reset serves the
Product specification
SS
.