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| HD6473887 Datasheet, PDF (399/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer | |||
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Table 15-2 DC Characteristics (cont)
VCC = 1.8 V to 5.5 V, AVCC = 1.8 V to 5.5 V, VSS = AVSS = 0.0 V, Ta = â20°C to +75°C
(including subactive mode) unless otherwise indicated.
Values
Item Symbol Applicable Pins
Min
Typ Max
Unit Test Condition
Notes
Stand- ISTBY
VCC
by
mode
current
dissi-
pation
â
1.0 5.0
µA 32-kHz crystal
*3
oscillator not used
*4
RAM VRAM
VCC
1.5
â
â
V
*3
data
*4
retain-
ing
voltage
Notes: 1. Applies to the Mask ROM products.
2. Applies to the HD6473887 and HD6473847.
3. Pin states during current measurement.
Pin States during Current Dissipation Measurement
Mode
RES Pin Internal State
Other Constant-
Pins Voltage Oscillator Pins
Active (high-speed) VCC
mode
Only CPU Operates VCC Halted
System clock oscillator:
Crystal
Active (medium-
speed) mode
Sleep mode
VCC
Subactive mode
VCC
Subsleep mode
VCC
Only timers operate VCC
Only CPU Operates VCC
Only timers operate, VCC
CPU stops
Halted
Halted
Subclock oscillator:
Pin X1 = GND
System clock oscillator:
crystal
Subclock oscillator:
Watch mode
VCC
Only time base
VCC Halted
crystal
operates, CPU stops
Standby mode
VCC
CPU and timers
VCC Halted
System clock oscillator:
both stop
crystal
Subclock oscillator:
Pin X1 = GND
4. Excludes current in pull-up MOS transistors and output buffers.
5. When internal step-down circuit is used.
382
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