SAB-C161O-L25M microcontroller equivalent, 16-bit single-chip microcontroller.
O I I I I I/O I/O O I/O O O I/O IO
P4.0 P4.1 P4.2 P4.3 P4.4 P4.5
17 18 19 20 23 24
O O O O O O
Port 4 is a 6-bit bidirectional I/O port. It is bit-wise programmable .
VDD
VSS
XTAL1 XTAL2 RSTIN RSTOUT NMI EA ALE RD WR/WRL Port 5 2 Bit
Port 0 16 Bit Port 1 16 Bit Port 2 7 Bit Port 3 .
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