46
MB89180 Series
I
MASK OPTIONS
No.
Part number
MB89181/182/183
MB89P185
MB89PV180
Specifying procedure
Specify when
ordering masking
Set with EPROM
programmer
Setting not
possible
1
Pull-up resistors
P00 to P07, P10 to P17
Can be set per pin
(P10 to P17 are available
only when segment
output is not selected.)
Can be set per pin
(P10 to P17 are available
only when segment
output is not selected.)
Fixed to without pull-
up resistor
2
Pull-up resistors
P40 to P47, P50 to P57
Can be set per pin
(Available only when
segment output is not
selected.)
Fixed to without pull-
up resistor
3
Pull-up resistors
P20 to P27
Can be set per pin
Fixed to without pull-
up resistor
4
Power-on reset
With power-on reset
Without power-on reset
Selectable
Selectable
Fixed to with power-
on reset
5
Selection of oscillation stabilization
delay time
The initial value of the main clock
oscillation stabilization time is
selectable by bit value of WTM1
and WTM0.
Selectable
WTM1 WTM0
0
0
1
1
0:
1:
0:
1:
2
2
/F
CH
2
12
/F
CH
2
16
/F
CH
2
18
/F
CH
Selectable
WTM1 WTM0
0
0
1
1
0:
1:
0:
1:
2
2
/F
CH
2
12
/F
CH
2
16
/F
CH
2
18
/F
CH
Fixed to oscillation
stabilization time of
2
16
/F
CH
6
Main clock oscillation type
Crystal or ceramic oscillator
CR
Selectable
Crystal or ceramic
oscillator
Crystal or ceramic
oscillator
7
Reset pin output
With reset output
Without reset output
Selectable
Selectable
With reset output
8
Clock mode selection
Dual-clock mode
Single-clock mode
Selectable
Selectable
Fixed to dual-clock
mode
9
Segment output selection
32 segments:No port selection
28 segments:Selection of P17 to
P14
24 segments: Selection of P17 to
P10
20 segments:Selection of P17 to
P10,and P57 to P54
16 segments:Selection of P17 to
P10,and P57 to P50
12 segments:Selection of P17 to
P10,P57 to P50, and P47 to P44
8 segments:Selection of P17 to
P10,P57 to P50, and P47 to P40
Selectable
Selects the number
of segments.
-101: 32 segments
-102: 28 segments
-103: 24 segments
-104: 20 segments
-105: 16 segments
-106: 12 segments
-107: 8 segments