E0C88365
q
Current Consumption
(Unless otherwise specified: V
DD
= 2.2 to 5.5V, V
SS
= 0V, Ta = 25°C, OSC1 = 153.6kHz crystal oscillation, C
G1
= 20pF,
OSC3 = CR oscillation, Non heavy load protection mode, C1–C9 = 0.1µF, No panel load)
Symbol
Condition
Min.
Typ.
Max.
Unit Note
Item
1
Power current
I
DD1
In SLEEP status
*
–
0.3
1
µA
–
I
DD2
In HALT status (153.6 kHz)
*
2
–
10
25
µA
–
I
DD3
CPU is in operating (153.6 kHz)
*
3
–
70
90
µA
–
4
I
DD4
CPU is in operating (2.5 MHz)
*
–
1.5
2
mA
–
I
HVL
In heavy load protection mode
–
25
50
µA
9
LCD drive circuit current
I
LCDN
–
–
2.5
5
µA
–
I
LCDH
In heavy load protection mode
–
15
30
µA
9
SVD circuit current
I
SVDN
V
DD
= 3.0 V
–
30
60
µA
10
I
SVDH
In heavy load protection mode
–
25
75
µA
9
Analog comparator circuit current
I
CMP1
CMPXDT = "1"
–
40
100
µA
–
I
CMP2
CMPXDT = "0"
–
4
10
µA
–
∗1
OSC1: Stop,
OSC3: Stop,
CPU, ROM, RAM: SLEEP status,
Clock timer: Stop,
Others: Stop status
∗2
OSC1: Oscillating, OSC3: Stop,
CPU, ROM, RAM: HALT status,
Clock timer: Operating, Others: Stop status
∗3
OSC1: Oscillating, OSC3: Stop,
CPU, ROM, RAM: Operating in 153.6 kHz, Clock timer: Operating, Others: Stop status
∗4
OSC1: Oscillating, OSC3: Oscillating, CPU, ROM, RAM: Operating in 2.5 MHz, Clock timer: Operating, Others: Stop status
Note) 9 It is the value of current which flows in the heavy load protection circuit when in the heavy load protection mode
(OSC3 ON or buzzer ON).
10 The value in
x
V can be found by the following expression: I
SVDN
(V
DD
=
x
V) = (x
×
20) - 30 (Typ. value),
I
SVDN
(V
DD
=
x
V) = (x
×
30) - 30 (Max. value)
s
DIAGRAM OF PAD LAYOUT
45
1
40
35
30
25
20
15
10
5
185
50
DIE No.
Y
165
X
(0, 0)
75
160
8.22 mm
100
105
110
115
120
125
130
135
7.53 mm
55
180
60
175
65
170
70
80
155
150
85
145
90
95
140
6
SEIKO [ SEIKO EPSON CORPORATION ]
