Thanks in advance for any help.
Schematic is very bad and I need to replace this
Micro controller part of a keyboard .
Pin #
Marking Marking Pin #
1
PE2
PE1 28
2
PE3
PE0 27
3
PF1
PF0 26
4
PA2
PA1 25
5
PA3
PA0 24
6
TO OSC1 23
7
RST
OSC0 22
8
GND
VDD 21
9
PB0
PC3 20
10 PB1
PC2
19
11 PB2
PC1 18
12 PB3
PC0 17
13 PD0
PD3 16
14 PD1
PD2 15
Thanks again
Jerry