MB91350A Series
■ PIN DESCRIPTION
Pin no.
LQFP*1 LQFP*2
Pin name
I/O
circuit
type*3
Function
1 to 8
1 to 8
D16 to D23
P20 to P27
Bit 16 to bit 23 of the external data bus.
C Valid only in external bus mode.
Can be used as ports while in external bus 8-bit mode.
9 to 16
9 to 16
D24 to D31
P30 to P37
Bit 24 to bit 31 of the external data bus.
C Valid only in external bus mode.
Can be used as ports while in single-chip mode.
A00 to A07
19 to 26 17, 20 to 26
P40 to P47
Bit 0 to bit 7 of the external address bus.
C Valid only in external bus mode.
Can be used as ports while in single-chip mode.
27 to 34
27 to 34
A08 to A15
P50 to P57
Bit 8 to bit 15 of the external address bus.
C Valid only in external bus mode.
Can be used as ports while in single-chip mode.
37 to 41
35 to 39
A16 to A20
P60 to P64
Bit 16 to bit 20 of the external address bus.
Valid only in external bus mode.
C
Can be used as ports while in single-chip mode or when the
external address bus is not used.
42 to 44
47, 48
49
⎯
106,105
⎯
A21 to A23
P65 to P67
DA0, DA1
DA2
Bit 21 to bit 23 of the external address bus.
Valid only in external bus mode.
C
Can be used as ports while in single-chip mode or when the
external address bus is not used.
⎯ D/A converter output pins
⎯ D/A converter output pin
50 to 57 113 to 120 AN0 to AN7
58 to 61
⎯
AN8 to AN11
G Analog input pins
G Analog input pins
67 to 70
TOT0 to TOT3
Reload timer output ports.
This pin is valid when timer output is enabled.
⎯
D General-purpose I/O ports.
PP0 to PP3
This pin is valid when the timer output function is
disabled.
OC0
Output compare output pin
71
97
PO0
D General-purpose I/O port.
This pin can be used as a port when the output compare
output is not used.
(Continued)
7