sh6631a SinoWealth Micro-Electronics Corp. Ltd, sh6631a Datasheet - Page 2

• Manufacturer Part Number: sh6631a
• Description: Mask 4-bit Microcontroller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

Block Diagram
Pin Descriptions
19, 20, 1, 2
Pin No.
12 ~ 14
15 ~ 18
3, 4
10
11
5
6
8
7
9
Designation
PC0 ~ PC3
PD0 ~ PD1
PA1 ~ PA3
PB0 ~ PB3
RESET
PA0/T0
OSCO
OSCI
GND
REM
V
INTERRUPT
(UP COUNTER)
DD
8-BIT TIMER
TIMER
DETECTION
VOLTAGE
I/O
I/O
I/O
I/O
I/O
I/O
O
O
P
P
RESET
I
I
LOW
Carrier synthesizer for infrared or RF output pin.
Bit programmable I/O pins, Vector Interrupt (Active falling edge).
Bit programmable I/O pins.
Power supply.
Oscillator input pin connected to ceramic oscillator
Oscillator input pin connected to ceramic oscillator.
Ground pin.
Reset input (active low).
Bit programmable I/O pin shared with external event counter input T0.
Bit programmable I/O pins.
Bit programmable I/O pins, Vector Interrupt (Active falling edge).
PRESCALER
OSCI
CTL REG.
OSC
1024 X 16BIT
DATA RAM
48 X 4 BIT
ROM
OSCO
2
REMOTE CONTROL
PORTA (4 BITS)
PORTB (4 BITS)
PORTC (4 BITS)
PORTD (2 BITS)
SYNTHESIZER
Descriptions
CPU
PORTA [1:3]
PORTB [0:3]
PORTC [0:3]
PORTD [0:1]
REM
SH6631A