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8 ELECTRICAL CHARACTERISTICS
S1C33210 PRODUCT PART EPSON A-71
8.4 Current Consumption
(Unless otherwise specified: VDD=2.7V to 3.6V, VSS=0V, Ta=-40°C to +85°C)
Item Symbol Condition Min. Typ. Max. Unit ∗
Operating current IDD1 When CPU is operating 20MHz – 27 37 mA 1
33MHz – 48 64
50MHz – 64 90
IDD2 HALT mode 20MHz – 16 20 mA 2
33MHz – 28 37
50MHz – 37 55
IDD3 HALT2 mode 20MHz – 6 10 mA 3
33MHz – 9 15
50MHz – 13 20
IDD4 SLEEP mode – 1 30 µA4
Clock timer operating current IDDCT When clock timer only is operating
OSC1 oscillation: 32kHz
–7–µA5
Analog power current
(Unless otherwise specified: VSS=0V, Ta=-40°C to +85°C)
Item Symbol Condition Min. Typ. Max. Unit ∗
A/D converter operating current AIDD1 VDD=AVDD=2.7V to 3.6V – 500 800 µA6
Current consumption measurement condition: VIH=VDD, VIL=0V, output pins are open.
∗ note) No. OSC3 OSC1 CPU Clock timer Other peripheral circuits
1 On Off Normal operation ∗1 Stop Stop
2 On Off HALT mode Stop Stop
3 On Off HALT2 mode Stop Stop
4 Off Off SLEEP mode Stop Stop
5 Off On HALT mode Run Stop
6 On Off HALT mode Stop A/D converter only operated,
conversion clock frequency=2MHz
∗1:The values of current consumption while the CPU is operating were measured when a test program that
consists of 55% load instructions, 23% arithmetic operation instructions, 1% mac instruction, 12% branch
instructions and 9% ext instruction is being executed in the built-in ROM continuously.