MSP430F6638IPZ datasheet(25/133 Pages) TI

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8.8 Schmitt-Trigger Inputs – General-Purpose I/O

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX UNIT

VIT+

Positive-going input threshold voltage

1.8 V

0.80

1.40

3 V

1.50

2.10

VIT–

Negative-going input threshold voltage

1.8 V

0.45

1.00

3 V

0.75

1.65

Vhys

Input voltage hysteresis (VIT+ – VIT–)

1.8 V

0.3

0.8

3 V

0.4

1.0

RPull

Pullup or pulldown resistor(2)

For pullup: VIN = VSS

For pulldown: VIN = VCC

kΩ

Input capacitance

VIN = VSS or VCC

(1)

Same parametrics apply to clock input pin when crystal bypass mode is used on XT1 (XIN) or XT2 (XT2IN).

(2)

Also applies to RST pin when pullup or pulldown resistor is enabled.

8.9 Inputs – Ports P1, P2, P3, and P4

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX UNIT

t(int)

External interrupt timing(2)

Port P1, P2, P3, P4: P1.x to P4.x,

External trigger pulse duration to set interrupt flag

2.2 V, 3 V

(1)

Some devices may contain additional ports with interrupts. See the block diagram and terminal function descriptions.

(2)

An external signal sets the interrupt flag every time the minimum interrupt pulse duration t(int) is met. It may be set by trigger signals

shorter than t(int).

8.10 Leakage Current – General-Purpose I/O

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX UNIT

Ilkg(Px.x)

High-impedance leakage current

See (1) (2)

1.8 V, 3 V

±50

(1)

The leakage current is measured with VSS or VCC applied to the corresponding pins, unless otherwise noted.

(2)

The leakage of the digital port pins is measured individually. The port pin is selected for input and the pullup or pulldown resistor is

disabled.

8.11 Outputs – General-Purpose I/O (Full Drive Strength)

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX UNIT

VOH

High-level output voltage

I(OHmax) = –3 mA(1)

1.8 V

VCC – 0.25

VCC

I(OHmax) = –10 mA(2)

VCC – 0.60

VCC

I(OHmax) = –5 mA(1)

3 V

VCC – 0.25

VCC

I(OHmax) = –15 mA(2)

VCC – 0.60

VCC

VOL

Low-level output voltage

I(OLmax) = 3 mA(1)

1.8 V

VSS VSS + 0.25

I(OLmax) = 10 mA(2)

VSS VSS + 0.60

I(OLmax) = 5 mA(1)

3 V

VSS VSS + 0.25

I(OLmax) = 15 mA(2)

VSS VSS + 0.60

(1)

The maximum total current, I(OHmax) and I(OLmax), for all outputs combined should not exceed ±48 mA to hold the maximum voltage

drop specified.

(2)

The maximum total current, I(OHmax) and I(OLmax), for all outputs combined should not exceed ±100 mA to hold the maximum voltage

drop specified.

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MSP430F6638, MSP430F6637, MSP430F6636, MSP430F6635, MSP430F6634

MSP430F6633, MSP430F6632, MSP430F6631, MSP430F6630

SLAS566G – JUNE 2010 – REVISED SEPTEMBER 2020

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MSP430F6638IPZ Datasheet(PDF) 25 Page - Texas Instruments

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