E0C63454
s
PIN DESCRIPTION
Pin name
V
DD
V
SS
V
D1
V
C1
–V
C5
V
REF
CA–CF
OSC1
OSC2
OSC3
OSC4
K00–K03
P00–P03
P10–P13
R00
R01
R02
R03
COM0–COM16
SEG0–SEG39
BZ
RESET
TEST
Pin No.
26
20
23
51–55
31
61–56
21
22
24
25
47–44
43–40
39–36
35
34
33
32
18–11, 62–70
10–1, 100–71
19
29
30
In/Out
–
–
–
–
O
–
I
O
I
O
I
I/O
I/O
O
O
O
O
O
O
O
I
I
Function
Power (+) supply pin
Power (–) supply pin
Oscillation/internal logic system regulated voltage output pin
LCD system power supply pin
1/4 bias generated internally, 1/5 bias supplied externally (selected by mask option)
LCD system power supply testing pin
LCD system boosting/reducing capacitor connecting pin
Crystal or CR oscillation input pin (selected by mask option)
Crystal or CR oscillation output pin (selected by mask option)
Ceramic or CR oscillation input pin (selected by mask option)
Ceramic or CR oscillation output pin (selected by mask option)
Input port
I/O port
I/O port (switching to serial I/F input/output is possible by software)
Output port
Output port
Output port (switching to TOUT signal output is possible by software)
Output port (switching to FOUT signal output is possible by software)
LCD common output pin (1/8, 1/16, 1/17 duty can be selected by software)
LCD segment output pin
Sound output pin
Initial reset input pin
Testing input pin
s
ELECTRICAL CHARACTERISTICS
q
Absolute Maximum Ratings
(V
SS
=0V)
Rating
Value
Unit
Symbol
Supply voltage
-0.5 to 7.0
V
V
DD
Input voltage (1)
V
I
-0.5 to V
DD
+ 0.3
V
Input voltage (2)
V
IOSC
-0.5 to V
D1
+ 0.3
V
∗
1
ΣI
VDD
Permissible total output current
10
mA
Operating temperature
Topr
-20 to 70
°C
Storage temperature
Tstg
-65 to 150
°C
Soldering temperature / time
Tsol
260°C, 10sec (lead section)
–
∗
2
Permissible dissipation
P
D
250
mW
∗1:
The permissible total output current is the sum total of the current (average current) that simultaneously flows from the output pins (or is draw in).
∗2:
In case of plastic package.
q
Recommended Operating Conditions
Condition
Supply voltage
Symbol
V
DD
V
SS
=0V
Remark
OSC3 oscillation OFF
OSC1 CR oscillation
OSC3 oscillation ON
Min.
1.8
2.2
2.2
–
40
(Ta=-20 to 70°C)
Typ.
Max. Unit
3.0
6.4
V
3.0
6.4
V
3.0
6.4
V
32.768
–
kHz
60
80
kHz
1,800
kHz
4,100 kHz
Oscillation frequency
f
OSC1
Crystal oscillation
CR oscillation
f
OSC3
CR oscillation
Ceramic oscillation
3
SEIKO [ SEIKO EPSON CORPORATION ]
