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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

(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

7VDD Power supply

20 Vss Ground

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 72 73

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Daewoo DTR Series Especificaciones Pagina 33