MB90474 데이터 시트보기 (PDF) - Fujitsu
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MB90474 Datasheet PDF : 118 Pages
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MB90470 Series
s PIN DESCRIPTION
Pin no.
LQFP QFP
Pin name
Circuit
type
Description
80
82
X0
A
Oscillator pin
81
83
X1
A
Oscillator pin
78
80
X0A
A
32 kHz oscillator pin
77
79
X1A
A
32 kHz oscillator pin
75
77
RST
B
Reset input pin
P00 to P07
83 to 90 85 to 92 AD00 to AD07
C
(CMOS)
General purpose input/output ports. Set the pull-up resistance
setting register (RDR0) to add pull-up resistance (RD00-RD07
= “1” ) . (Not valid when set for output)
In multiplex mode, these pins function as external address/
data bus lower input/output pins.
D00 to D07
In non-multiplex mode, these pins function as external data
bus lower output pins.
91 to 98
93 to
100
P10 to P17
AD08 to AD15
C
(CMOS)
General purpose input/output ports. Set the pull-up resistance
setting register (RDR1) to add pull-up resistance (RD10-RD17
= “1” ) . (Not valid when set for output)
In multiplex mode, these pins function as external address/
data bus higher input/output pins.
D08 to D15
In non-multiplex mode, these pins function as external data
bus higher output pins.
General purpose input/output ports. In external bus mode, pins
P20 to P23
for which the corresponding bit in the external address output
control register (HACR) is “1” function as the general purpose
99
input/output ports.
100
1
1 to 4
E
In multiplex mode, pins for which the corresponding bit in the
A16 to A19 (CMOS/H) external address output control register (HACR) is “0” function
2
as the upper address output pins (A16 to A19) .
A16 to A19
In non-multiplex mode, pins for which the corresponding bit in
the external address output control register (HACR) is “0”
function as the upper address output pins (A16 to A19) .
P24 to P27
General purpose input/output ports. In external bus mode, pins
for which the corresponding bit in the external address output
control register (HACR) is “1” function as the general purpose
input/output ports.
3 to 6
5 to 8
A20 to A23
In multiplex mode, pins for which the corresponding bit in the
E
external address output control register (HACR) is “0” function
(CMOS/H) as the upper address output pins (A20 to A23) .
A20 to A23
In non-multiplex mode, pins for which the corresponding bit in
the external address output control register (HACR) is “0”
function as the upper address output pins (A20 to A23) .
PPG0 to PPG3
PPG timer output pins.
LQFP : FPT-100P-M05 package
QFP : FPT-100P-M06 package
(Continued)
8
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