Datasheet

  
  
SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
low power mode supply currents (into V
CC
) excluding external current (see Notes 1 and 2)
PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT
I
LPM0, 1MHz
Low-power mode
0 (LPM0) current,
f
MCLK
= 0MHz,
f
SMCLK
= f
DCO
= 1MHz,
f
ACLK
= 32,768Hz,
2.2 V 65 80
µA
I
LPM0, 1MHz
0 (LPM0) current,
see Note 3
f
ACLK
= 32,768Hz,
BCSCTL1 = CALBC1_1MHz,
DCOCTL = CALDCO_1MHz,
CPUOFF = 1, SCG0 = 0, SCG1 = 0, OSCOFF = 0
3 V 85 100
µ
A
I
LPM0, 100kHz
Low-power mode
0 (LPM0) current,
f
MCLK
= 0MHz,
f
SMCLK
= f
DCO(0, 0)
≈ 100kHz,
f
ACLK
= 0Hz,
2.2 V 37 48
µA
I
LPM0, 100kH
z
0 (LPM0) current,
see Note 3
SMCLK DCO(0, 0)
f
ACLK
= 0Hz,
RSELx = 0, DCOx = 0,
CPUOFF = 1, SCG0 = 0, SCG1 = 0, OSCOFF = 1
3 V 41 52
µ
A
I
LPM2
Low-power mode
1 (LPM2) current,
f
MCLK
= f
SMCLK
= 0MHz, f
DCO
= 1MHz,
f
ACLK
= 32,768Hz,
BCSCTL1 = CALBC1_1MHz,
2.2 V 22 29
µA
I
LPM2
1 (LPM2) current,
see Note 4
ACLK
BCSCTL1 = CALBC1_1MHz,
DCOCTL = CALDCO_1MHz,
CPUOFF = 1, SCG0 = 0, SCG1 = 1, OSCOFF = 0
3 V 25 32
µ
A
T
A
= −40°C 0.7 1.2
Low-power mode
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
T
A
= 25°C
2.2 V
0.7 1.0
I
LPM3,LFXT1
Low-power mode
3 (LPM3) current,
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
f
ACLK
= 32,768Hz,
T
A
= 85°C
2.2 V
1.4 2.3
µA
I
LPM3,LFXT1
3 (LPM3) current,
see Note 4
f
ACLK
= 32,768Hz,
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
OSCOFF = 0
T
A
= −40°C 0.9 1.2
µ
A
see Note 4
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
OSCOFF = 0
T
A
= 25°C
3 V
0.9 1.2
T
A
= 85°C
3 V
1.6 2.8
T
A
= −40°C 0.4 0.7
Low-power mode
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
T
A
= 25°C
2.2 V
0.5 0.7
I
LPM3,VLO
Low-power mode
3 current, (LPM3)
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
f
ACLK
from internal LF oscillator (VLO),
T
A
= 85°C
2.2 V
1.0 1.6
µA
I
LPM3,VLO
3 current, (LPM3)
see Note 4
f
ACLK
from internal LF oscillator (VLO),
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
OSCOFF = 0
T
A
= −40°C 0.5 0.9
µ
A
see Note 4
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
OSCOFF = 0
T
A
= 25°C
3 V
0.6 0.9
T
A
= 85°C
3 V
1.3 1.8
Low-power mode
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
f = 32,768Hz,
T
A
= −40°C 0.1 0.5
I
LPM4
Low-power mode
4 (LPM4) current,
see Note 5
f
DCO
= f
MCLK
= f
SMCLK
= 0MHz,
f
ACLK
= 32,768Hz,
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
T
A
= 25°C
2.2 V/3 V
0.1 0.5
µA
I
LPM4
4 (LPM4) current,
see Note 5
CPUOFF = 1, SCG0 = 1, SCG1 = 1,
OSCOFF = 1
T
A
= 85°C
2.2 V/3 V
0.8 1.5
µA
NOTES: 1. All inputs are tied to 0 V or V
CC
. Outputs do not source or sink any current.
2. The currents are characterized with a Micro Crystal CC4V−T1A SMD crystal with a load capacitance of 9 pF.
The internal and external load capacitance is chosen to closely match the required 9pF.
3. Current for brownout and WDT clocked by SMCLK included.
4. Current for brownout and WDT clocked by ACLK included.
5. Current for brownout included.