SN8P1602B
8-Bit Micro-Controller
PIN DESCRIPTIONS
SN8P1602B
PAD NAME
VDD, VSS
RST/VPP
XIN
XOUT/P1.4
P0.0 / INT0
P1.0 ~ P1.4
P2.0 ~ P2.7
TYPE
DESCRIPTION
P
Power supply input pins. Place the 0.1µF bypass capacitor between the VDD and VSS pin.
RST: System reset input pin. Schmitt trigger structure, low active, normal stay to
I, P “high”.
VPP: OTP programming pin.
I
External oscillator input pin. RC mode input pin.
I/O External oscillator output pin. In RC mode is P1.4 I/O.
I
Port 0.0 and shared with INT0 trigger pin (Schmitt trigger) / Built-in pull-up resistors.
I/O Port 1.0~Port 1.4 bi-direction pins / Built-in pull-up resistors.
I/O Port 2.0~Port 2.7 bi-direction pins / Built-in pull-up resistors.
PIN CIRCUIT DIAGRAMS
SN8P1602B
Port0 structure
PUR
Port1~Port2 structure
PUR
PnM, PUR
PUR
PnM
Pin
Pin
Int. bus
Latch
PnM
Note: All of the latch output circuits are push-pull structures.
SONiX TECHNOLOGY CO., LTD
Page 12
Version 1.1
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