MSP430F21X1_14 Datasheet, PDF (30/62 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F21x1
SLAS439F – SEPTEMBER 2004 – REVISED AUGUST 2011
Timer_A
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
f_TA
Timer_A clock frequency
TEST CONDITIONS
Internal: SMCLK, ACLK
External: TACLK, INCLK
Duty cycle = 50% ± 10%
V_CC
2.2 V
3V
MIN TYP
t_TA,cap
Timer_A capture timing
TA0, TA1, TA2
2.2 V/3 V
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MAX
10
16
UNIT
MHz
ns
Comparator_A+ ⁽¹⁾
over recommended operating free-air temperature range (unless otherwise noted)
I_(DD)
PARAMETER
TEST CONDITIONS
CAON = 1, CARSEL = 0, CAREF = 0
V_CC
2.2 V
3V
I_{(Refladder/RefDiode)}
CAON = 1, CARSEL = 0, CAREF = 1/2/3,
No load at P2.3/CA0/TA1 and P2.4/CA1/TA2
2.2 V
3V
V_(IC)
Common-mode input
voltage range
CAON = 1
2.2 V/3 V
V_(Ref025)
V_(Ref050)
V_(RefVT)
V_(offset)
V_hys
t_(response)
(Voltage at 0.25 V_CC
node) / V_CC
(Voltage at 0.5 V_CC
node) / V_CC
See Figure 19 and
Figure 20
Offset voltage⁽²⁾
Input hysteresis
Response time
(low-high and high-low)
PCA0 = 1, CARSEL = 1, CAREF = 1,
No load at P2.3/CA0/TA1 and P2.4/CA1/TA2
PCA0 = 1, CARSEL = 1, CAREF = 2,
No load at P2.3/CA0/TA1 and P2.4/CA1/TA2
PCA0 = 1, CARSEL = 1, CAREF = 3,
No load at P2.3/CA0/TA1 and P2.4/CA1/TA2,
T_A = 85°C
CAON = 1
T_A = 25°C, Overdrive 10 mV,
Without filter: CAF = 0⁽³⁾
(see Figure 16 and Figure 17)
T_A = 25°C, Overdrive 10 mV,
With filter: CAF = 1⁽³⁾
(see Figure 16 and Figure 17)
2.2 V/3 V
2.2 V/3 V
2.2 V
3V
2.2 V/3 V
2.2 V/3 V
2.2 V
3V
2.2 V
3V
MIN TYP
25
45
30
45
MAX
40
60
50
71
UNIT
µA
µA
0
V_CC - 1 V
0.23 0.24
0.25
0.47 0.48
390 480
400 490
-30
0 0.7
80 165
70 120
1.4 1.9
0.9 1.5
0.5
540
mV
550
30 mV
1.4 mV
300
ns
240
2.8
µs
2.2
(1) The leakage current for the Comparator_A+ terminals is identical to I_lkg(Px.y) specification.
(2) The input offset voltage can be cancelled by using the CAEX bit to invert the Comparator_A+ inputs on successive measurements. The
two successive measurements are then summed together.
(3) Response time measured at P2.2/CAOUT.
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