sh6622a SinoWealth Micro-Electronics Corp. Ltd, sh6622a Datasheet - Page 2

• Manufacturer Part Number: sh6622a
• Description: Mask 4-bit Microcontroller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

Block Diagram
Pin Description
27, 28, 1, 2
24, 25, 4, 5
Pin No.
13 - 16
17 - 20
9 - 12
26, 3
21
22
23
6
7
8
Designation
TIMER
INTERRUPT
PD.0 - PD.3
PC.0 - PC.3
PE.0 - PE.3
PA.0 - PA.3
PB.0 - PB.3
(UP COUNTER)
PF.0 - PF.1
TIMER (3-BIT)
WATCHDOG
8-BIT TIMER
RESET
GND
OSCO
OSCI
OPTION ROM
GND
V
T0
DD
V
WDT TIME
OUT
DD
XTAL/RC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
P
P
I
I
I
RC
T0
PRESCALER
Bit programmable I/O
Bit programmable I/O
Bit programmable I/O
Timer Clock/Counter input pin (Schmitt Trigger input)
Reset input (active low) (Schmitt Trigger input)
Ground pin
Bit programmable I/O. Vector Interrupt (Active falling edge)
Bit programmable I/O
Bit programmable I/O. Vector Interrupt (Active falling edge)
Power supply pin
OSC output pin, There is a signal with a frequency of F
OSC input pin, connected to crystal, ceramic or external resistor
OSCI
OSC
REG
DATA RAM
4096 X 16BIT
160 X 4BIT
ROM
OSCO
2
RESET
PORTA (4 BITS)
PORTB (4 BITS)
PORTC (4 BITS)
PORTD (4 BITS)
PORTE (4 BITS)
PORTF (2 BITS)
CPU
Descriptions
PORTA [3:0]
PORTB [3:0]
PORTC [3:0]
PORTD [3:0]
PORTE [3:0]
PORTF [1:0]
osc
/4 for RC mode
SH6622A