MB90560/565 Series
■ I/O CIRCUITS
Type
Circuit
Remarks
• Oscillation circuit
Internal oscillation feedback
resistor (Rf)
X1
Xout
Rf
Nch
X0
A
B
Pch
Pch
Nch
Standby control signal
Reset input
• CMOS hysteresis reset input pin
• CMOS hysteresis I/O pin with pull-up
control
CMOS output
Pull-up control
Pout
Rp
CMOS hysteresis input (with input cut-
off function in standby mode)
Internal pull-up resistor (Rp)
< Note >
Pch
Nch
Nout
C
• The pull-up resistor is active when the
Input signal
port is set as an input.
Standby control signal
• CMOS hysteresis I/O pin
CMOS output
CMOS hysteresis input (with input cut-
off function in standby mode)
< Notes >
Pch
Pout
Nout
Nch
• The I/O port output and internal
resource output share the same out-
put buffer.
D
Input signal
• The I/O port input and internal
resource input share the same input
buffer.
Standby control signal
(Continued)
13
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