sh6622a SinoWealth Micro-Electronics Corp. Ltd, sh6622a Datasheet - Page 21
sh6622a
Manufacturer Part Number
sh6622a
Description
Mask 4-bit Microcontroller
Manufacturer
SinoWealth Micro-Electronics Corp. Ltd
Datasheet
1.SH6622A.pdf
(28 pages)
AP4
(1) PORTA - C: as scan KEYBOARD (32 keys)
(2) PORTD - F: I/O
I/O
PORTD
PORTF
~
Pull-high
resistor
47K
PA0
PA1
PA2
PA3
PC1
PC2
PC3
PB0
PB1
PB2
PB3
PC0
Ω
21
V
DD
SH6622A
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