msp430f2121irge Microchip Technology Inc., msp430f2121irge Datasheet - Page 16

• Manufacturer Part Number: msp430f2121irge
• Description: Msp430
• Manufacturer: Microchip Technology Inc.

MSP430x21x1
MIXED SIGNAL MICROCONTROLLER
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
Schmitt-trigger inputs − Ports P1 and P2
inputs − Ports P1 and P2
NOTES: 1. An external signal sets the interrupt flag every time the minimum interrupt puls width t (int) is met. It may be set even with trigger signals
leakage current − Ports P1 and P2
NOTES: 1. The leakage current is measured with V SS or V CC applied to the corresponding pin(s), unless otherwise noted.
16
V IT+
V IT+
V IT−
V IT−
V hys
V hys
R Pull
C I
t (int)
I lkg(Px.x)
2. The leakage of the digital port pins is measured individually. The port pin is selected for input and the pull−up/pull−down resistor
shorter than t (int) .
is disabled.
Positive-going input threshold
Positive-going input threshold
voltage
voltage
Negative-going input threshold
Negative-going input threshold
voltage
voltage
Input voltage hysteresis (V IT+ −
Input voltage hysteresis (V IT+ −
V IT− )
Pull−up/pull−down resistor
Input Capacitance
External interrupt timing
High-impedance leakage current
PARAMETER
PARAMETER
PARAMETER
POST OFFICE BOX 655303
For pull−up: V IN = V SS ;
For pull−down: V IN = V CC
V IN = V SS or V CC
Port P1, P2: P1.x to P2.x, External
trigger puls width to set interrupt
flag, (see Note 1)
see Notes 1 and 2
TEST CONDITIONS
TEST CONDITIONS
TEST CONDITIONS
•
DALLAS, TEXAS 75265
2.2 V/3 V
2.2 V/3 V
2.2 V
2.2 V
2.2 V
VCC
VCC
VCC
3 V
3 V
3 V
MIN
0.45
1.00
1.35
0.25
0.55
0.75
MIN
MIN
0.2
0.3
20
20
TYP
TYP
TYP
35
5
MAX
MAX
MAX
0.75
1.65
2.25
0.55
1.20
1.65
±50
1.0
1.0
50
UNIT
UNIT
UNIT
V CC
V CC
kW
pF
nA
ns
V
V
V
V
V
V