MSP430G2X52_1112 Datasheet, PDF (22/62 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x52
MSP430G2x12
SLAS722E – DECEMBER 2010 – REVISED DECEMBER 2011
www.ti.com
Pin-Oscillator Frequency – Ports Px
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
fo_P1.x
fo_P2.x
fo_P2.6/7
PARAMETER
Port output oscillation frequency
Port output oscillation frequency
Port output oscillation frequency
TEST CONDITIONS
V_CC
P1.y, C_L = 10 pF, R_L = 100 kΩ⁽¹⁾⁽²⁾
P1.y, C_L = 20 pF, R_L = 100 kΩ⁽¹⁾⁽²⁾
3V
P2.0 to P2.5, C_L = 10 pF, R_L = 100 kΩ⁽¹⁾⁽²⁾
P2.0 to P2.5, C_L = 20 pF, R_L = 100 kΩ⁽¹⁾⁽²⁾
3V
P2.6 and P2.7, C_L = 20 pF, R_L = 100
kΩ^{(1) (2)}
3V
MIN TYP
1400
900
1800
1000
700
MAX UNIT
kHz
kHz
kHz
(1) A resistive divider with two 100-kΩ resistors between V_CC and V_SS is used as load. The output is connected to the center tap of the
divider.
(2) The output voltage oscillates with a typical amplitude of 700 mV at the specified toggle frequency.
Typical Characteristics – Pin-Oscillator Frequency
TYPICAL OSCILLATING FREQUENCY
vs
LOAD CAPACITANCE
TYPICAL OSCILLATING FREQUENCY
vs
LOAD CAPACITANCE
1.50
1.35
V_CC = 2.2 V
1.50
1.35
V_CC = 3.0 V
1.20
1.20
1.05
P1.y
0.90
P2.0 ... P2.5
0.75
P2.6, P2.7
0.60
1.05
P1.y
0.90
P2.0 ... P2.5
0.75
P2.6, P2.7
0.60
0.45
0.45
0.30
0.30
0.15
0.15
0.00
10
50
100
C_LOAD − External Capacitance − pF
Figure 10.
0.00
10
50
100
C_LOAD − External Capacitance − pF
Figure 11.
22
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