Fujitsu FR81S User Manual
CHAPTER 1: OVERVIEW
9. Explanation of Pin Functions
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : OVERVIEW
FUJITSU SEMICONDUCTOR CONFIDENTIAL
56
Pin Number
Pin Name
P
ol
ar
ity
I/O
circuit
form
Function
(Please refer to the chapter of "I/O port" for the
switch.)
64
80 100 120 144 176
63
79
99
119 140 171
P011
WOT
D25
SOT2_1
TIOA0_0
INT3_1
-
-
-
-
-
-
A
General-purpose I/O port
RTC output pin
External Bus data bit25 I/O pin
Multi-function serial ch.2 serial data output pin(1)
Base timer ch.0 TIOA output pin(0)
INT3 external interrupt input pin(1)
-
-
-
-
141 172
P012
D26
TIOB0_0
-
-
-
A
General-purpose I/O port
External Bus data bit26 I/O pin
Base timer ch.0 TIOB input pin(0)
-
-
-
-
-
173 P167
PPG35_1
-
-
A
General-purpose I/O port
PPG ch.35 output pin(1)
-
-
-
-
142 174
P013
D27
TIOA1_0
-
-
-
A
General-purpose I/O port
External Bus data bit27 I/O pin
Base timer ch.1 TIOA I/O pin(0)
-
-
-
-
143 175
P014
D28
TIOB1_0
-
-
-
A
General-purpose I/O port
External Bus data bit28 I/O pin
Base timer ch.1 TIOB input pin(0)
18
23
28
34
40
50 AVCC1
-
-
A/D, D/A converter unit1 analog power supply pin
39
47
58
68
84
103 AVCC0
-
-
A/D, D/A converter unit0 analog power supply pin
20
25
30
36
42
52 AVRH1
-
-
A/D converter unit1 upper limit reference voltage
pin
38
46
57
67
83
102 AVRH0
-
-
A/D converter unit0 upper limit reference voltage
pin
21
26
31
37
43
53 AVSS1/AVRL1
-
-
A/D, D/A converter unit1 GND pin /
A/D converter unit1 lower limit reference voltage
pin
37
45
56
66
82
101 AVSS0/AVRL0
-
-
A/D, D/A converter unit0 GND pin /
A/D converter unit0 lower limit reference voltage
pin
60
74
93
110 130 158 C
-
-
External capacity connection output pin
32
64
20
40
61
80
25
50
76
100
30
60
91
120
36
72
109
144
44
88
133
176
VCC
-
-
+5.0v power supply pin
1
33
55
59
1
21
41
60
69
73
1
26
51
75
85
92
1
31
61
90
101
109
1
37
73
108
120
129
1
45
89
132
148
157
VSS
-
-
GND pin
MB91520 Series
MN705-00010-1v0-E
55