MSP430F249-EP_14 Datasheet, PDF (29/82 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F249-EP
MIXED SIGNAL MICROCONTROLLER
2008
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
outputs − ports P1, P2, P3, P4, P5, and P6
PARAMETER
TEST CONDITIONS
VCC
MIN
MAX UNIT
V_OH
V_OL
NOTES:
I_OH(max) = −1.5 mA, (see Note 1)
2.2 V V_CC − 0.25
V_CC
High-level output voltage
I_OH(max) = −6 mA, (see Note 2)
I_OH(max) = −1.5 mA, (see Note 1)
2.2 V V_CC − 0.60
3 V V_CC − 0.25
V_CC
V
V_CC
I_OH(max) = −6 mA, (see Note 2)
3 V V_CC − 0.60
V_CC
I_OL(max) = 1.5 mA, (see Note 1)
2.2 V
V_SS V_SS + 0.25
Low-level output voltage
I_OL(max) = 6 mA, (see Note 2)
I_OL(max) = 1.5 mA, (see Note 1)
2.2 V
3V
V_SS V_SS + 0.60
V
V_SS V_SS + 0.25
I_OL(max) = 6 mA, (see Note 2)
3V
V_SS V_SS + 0.60
1. The maximum total current, I_OH(max) and I_OL(max), for all outputs combined, should not exceed ±12 mA to satisfy the maximum
voltage drop specified.
2. The maximum total current, I_OH(max) and I_OL(max), for all outputs combined, should not exceed ±48 mA to satisfy the maximum
voltage drop specified.
output frequency − ports P1, P2, P3, P4, P5, and P6
PARAMETER
TEST CONDITIONS
VCC
MIN TYP
MAX UNIT
f_Px.y
Port output frequency P1.4/SMCLK, C_L = 20 pF, R_L = 1 kW
with load
(see Notes 1 and 2)
2.2 V
3V
DC
DC
10
MHz
12
f_{Port_CLK}
Clock output frequency
P2.0/ACLK/CA2, P1.4/SMCLK, C_L = 20 pF,
R_L = 1 kW (see Note 2)
2.2 V
3.3 V
DC
DC
12
MHz
16
t_(Xdc)
NOTES:
P1.0/TACLK/CAOUT, C_L = 20 pF, LF mode
30
50
70
P1.0/TACLK/CAOUT, C_L = 20 pF, XT1 mode
40
50
60 %
Duty cycle of output
frequency
P1.1/TA0, C_L = 20 pF, XT1 mode
P1.1/TA0, C_L = 20 pF, DCO
40
50% − 15 ns
60
50 50% + 15 ns
P1.4/SMCLK, C_L = 20 pF, XT2 mode
40
60 %
P1.4/SMCLK, C_L = 20 pF, DCO
50% − 15 ns
50% + 15 ns
1. A resistive divider with 2 times 0.5 kW 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 reaches at least 10% and 90% V_CC at the specified toggle frequency.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
29