22 ELECTRICAL CHARACTERISTICS
22-2
Seiko Epson Corporation
S1C31D50/D51 TECHNICAL MANUAL
(Rev. 2.00)
22.3 Current Consumption
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= 0 V, Ta = 25
°
C, EXOSC = OFF, PWGACTL.REGMODE[1:0] bits = 0x0 (automatic
mode), PWGACTL.REGSEL bit = 1 (mode0), FLASHCWAIT.RDWAIT[1:0] bits = 0x1 (2 cycles)
Item
Symbol
Condition
Min.
Typ.
Max. Unit
Current
consumption in
SLEEP mode
I
SLP1
IOSC = OFF, OSC1 = OFF, OSC3 = OFF
–
0.46
4
µA
I
SLP2
IOSC = OFF, OSC1 = OFF, OSC3 = OFF, PWGACTL.REGSEL bit = 0 (mode1)
–
0.43
3.5
µA
I
SLP3
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, RTCA = ON
–
0.95
6
µA
I
SLP4
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, RTCA = ON,
PWGACTL.REGSEL bit = 0 (mode1)
–
0.85
5.5
µA
Current
consumption in
HALT mode
I
HALT1
IOSC = 8 MHz
*
1
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC
–
570
710
µA
I
HALT2
IOSC = 2 MHz
*
2
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC
–
140
172
µA
I
HALT3
IOSC = 2 MHz
*
2
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC,
PWGACTL.REGSEL bit = 0 (mode1)
–
80
100
µA
I
HALT4
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = OSC1
–
1.8
8.0
µA
IOSC = OFF, OSC1 = 32 kHz
*
4
, OSC3 = OFF, SYSCLK = OSC1
–
2.8
12.0
µA
I
HALT5
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = OSC1,
PWGACTL.REGSEL bit = 0 (mode1)
–
1.4
7.5
µA
IOSC = OFF, OSC1 = 32 kHz
*
4
, OSC3 = OFF, SYSCLK = OSC1,
PWGACTL.REGSEL bit = 0 (mode1)
–
2.4
11.5
µA
I
HALT6
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = 16 MHz (ceramic oscillator)
*
5
,
SYSCLK = OSC3
–
830
1,050 µA
I
HALT7
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = 16 MHz (internal oscillator)
*
6
,
SYSCLK = OSC3
–
850
1,060 µA
Current
consumption in
RUN mode
I
RUN1
*
7
IOSC = 8 MHz
*
1
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC
–
2,100
2,580 µA
I
RUN2
*
7
IOSC = 2 MHz
*
2
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC
–
520
650
µA
I
RUN3
*
7
IOSC = 2 MHz
*
2
, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = IOSC,
PWGACTL.REGSEL bit = 0 (mode1)
–
310
390
µA
I
RUN4
*
7
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = OSC1
–
8
14
µA
IOSC = OFF, OSC1 = 32 kHz
*
4
, OSC3 = OFF, SYSCLK = OSC1
10
18
µA
I
RUN5
*
7
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = OFF, SYSCLK = OSC1,
PWGACTL.REGSEL bit = 0 (mode1)
–
7
12
µA
IOSC = OFF, OSC1 = 32 kHz
*
4
, OSC3 = OFF, SYSCLK = OSC1,
PWGACTL.REGSEL bit = 0 (mode1)
–
7.5
14
µA
I
RUN6
*
7
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = 16 MHz (ceramic oscillator)
*
5
,
SYSCLK = OSC3
–
3,880
4,780 µA
I
RUN7
*
7
IOSC = OFF, OSC1 = 32.768 kHz
*
3
, OSC3 = 16 MHz (internal oscillator)
*
6
,
SYSCLK = OSC3
–
3,890
4,800 µA
I
RUN8
*
8
IOSC = OFF, OSC1 = OFF, OSC3 = 16 MHz (internal oscillator)
*
6
,
SYSCLK = OSC3, HWP/SDAC = ON
–
7,083
8,500 µA
*
1 IOSC oscillator: CLGIOSC.IOSCFQ[1:0] bits = 0x2
*
2 IOSC oscillator: CLGIOSC.IOSCFQ[1:0] bits = 0x1
*
3 OSC1 oscillator: CLGOSC1.OSC1SELCR bit = 0, CLGOSC1.INV1N[1:0] bits = 0x0, CLGOSC1.CGI1[2:0] bits = 0x0, CLGOSC1.
OSDEN bit = 0, C
G1
= C
D1
= 0 pF, Crystal resonator = C-002RX (manufactured by Seiko Epson Corporation, R
1
= 50 k
W
(Max.),
C
L
= 7 pF)
*
4 OSC1 oscillator: CLGOSC1.OSC1SELCR bit = 1
*
5 OSC3 oscillator: CLGOSC3.OSC3MD bit = 1, CLGOSC3.OSC3INV[1:0] bits = 0x0, C
G3
= C
D3
= 10 pF
*
6 OSC3 oscillator: CLGOSC3.OSC3MD bit = 0, CLGOSC3.OSC3FQ[1:0] bits = 0x3
*
7 The current consumption values were measured when a test program consisting of 60.5 % ALU instructions, 17 % branch instruc-
tions, 12 % RAM read instructions, and 10.5 % RAM write instructions was executed continuously in the Flash memory.
*
8 The current consumption value was measured when the HWP and SDAC perform playback of 2 channels, TSM = 125%, and CPU
is idle.