Table 15-2 DC Characteristics (cont)
V
CC
= 1.8 V to 5.5 V, AV
CC
= 1.8 V to 5.5 V, V
SS
= AV
SS
= 0.0 V, T
a
= –20°C to +75°C
(including subactive mode) unless otherwise indicated.
Values
Item
Symbol
Applicable Pins
Min
Typ
Max
Unit
Test Condition
Notes
Subsleep I
SUBSP
V
CC
—
7.5
16
µA
V
CC
= 2.7 V,
*
3
mode
LCD on
*
4
current
32-kHz crystal
*
5
dissipation
oscillator
(ø
SUB
=ø
w
/2)
Watch I
WATCH
V
CC
—
2.8
6
µA
V
CC
= 2.7 V
*
3
mode
32-kHz crystal
*
4
current
oscillator
*
5
dissipation
LCD not used
Standby I
STBY
V
CC
—
1.0
5.0
µA
32-kHz crystal
*
3
mode
oscillator not used
*
4
current
dissipation
RAM data V
RAM
V
CC
1.5
—
—
V
*
3
retaining
*
4
voltage
Notes: 1. Applies to the Mask ROM products.
2. Applies to the HD6473867 and HD6473827.
3. Pin states during current measurement.
Other
LCD Power
Mode
RES
Pin
Internal State
Pins
Supply
Oscillator Pins
Active (high-speed)
V
CC
Operates
V
CC
Halted
System clock oscillator:
mode (I
OPE1
)
crystal
Active (medium-
Subclock oscillator:
speed) mode (I
OPE2
)
Pin X
1
= GND
Sleep mode
V
CC
Only timers operate
V
CC
Halted
Subactive mode
V
CC
Operates
V
CC
Halted
System clock oscillator:
Subsleep mode
V
CC
Only timers operate,
V
CC
Halted
crystal
CPU stops
Subclock oscillator:
Watch mode
V
CC
Only time base
V
CC
Halted
crystal
operates, CPU stops
Standby mode
V
CC
CPU and timers
V
CC
Halted
System clock oscillator:
both stop
crystal
Subclock oscillator:
Pin X
1
= GND
4. Excludes current in pull-up MOS transistors and output buffers.
5. When internal step-down circuit is used.
367