V62SLASH13624-01XE-R datasheet(31/77 Pages) TI1

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MSP430F2132-EP

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SLAS913A – JULY 2013 – REVISED AUGUST 2013

Product Folder Links: MSP430F2132-EP

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(1)

To improve EMI on the XT2 oscillator the following guidelines should be observed:

(a) Keep the trace between the device and the crystal as short as possible.

(b) Design a good ground plane around the oscillator pins.

(d) Avoid running PCB traces underneath or adjacent to the XIN and XOUT pins.

(e) Use assembly materials and praxis to avoid any parasitic load on the oscillator XIN and XOUT pins.

(f) If conformal coating is used, ensure that it does not induce capacitive or resistive leakage between the oscillator pins.

(g) Do not route the XOUT line to the JTAG header to support the serial programming adapter as shown in other documentation. This

signal is no longer required for the serial programming adapter.

(2)

Use of the LFXT1 Crystal Oscillator at TA > 105°C is not ensured. It is recommended that an external digital clock source or the internal

DCO is used to provide clocking.

(3)

Includes parasitic bond and package capacitance (approximately 2 pF per pin). Because the PCB adds additional capacitance, it is

recommended to verify the correct load by measuring the ACLK frequency. For a correct setup, the effective load capacitance should

always match the specification of the used crystal.

(4)

Requires external capacitors at both terminals. Values are specified by crystal manufacturers.

(5)

Frequencies below the MIN specification set the fault flag, frequencies above the MAX specification do not set the fault flag, and

frequencies in between might set the flag.

(6)

Measured with logic-level input frequency, but also applies to operation with crystals.

5.22 Crystal Oscillator LFXT1, High-Frequency Mode

(1) (2)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

fLFXT1,HF0

LFXT1 oscillator crystal

frequency, HF mode 0

XTS = 1, XCAPx = 0, LFXT1Sx = 0

1.8 V to 3.6 V

0.4

MHz

fLFXT1,HF1

LFXT1 oscillator crystal

frequency, HF mode 1

XTS = 1, XCAPx = 0, LFXT1Sx = 1

1.8 V to 3.6 V

MHz

fLFXT1,HF2

LFXT1 oscillator crystal

frequency, HF mode 2

XTS = 1, XCAPx = 0, LFXT1Sx = 2

1.8 V to 3.6 V

MHz

2.2 V to 3.6 V

3 V to 3.6 V

fLFXT1,HF,logic

LFXT1 oscillator logic-level

square-wave input

frequency, HF mode

XTS = 1, XCAPx = 0, LFXT1Sx = 3

1.8 V to 3.6 V

0.4

MHz

2.2 V to 3.6 V

0.4

3 V to 3.6 V

0.4

OAHF

Oscillation allowance for HF

crystals (see Figure 27 and

Figure 28)

XTS = 1, XCAPx = 0, LFXT1Sx = 0,

fLFXT1,HF = 1 MHz, CL,eff = 15 pF

2700

XTS = 1, XCAPx = 0, LFXT1Sx = 1,

fLFXT1,HF = 4 MHz, CL,eff = 15 pF

800

XTS = 1, XCAPx = 0, LFXT1Sx = 2,

fLFXT1,HF = 16 MHz, CL,eff = 15 pF

300

CL,eff

Integrated effective load

capacitance, HF mode(3)

XTS = 1, XCAPx = 0(4)

Duty cycle, HF mode

XTS = 1, XCAPx = 0,

Measured at P2.0/ACLK,

fLFXT1,HF = 10 MHz

2.2 V, 3 V

XTS = 1, XCAPx = 0,

Measured at P2.0/ACLK,

fLFXT1,HF = 16 MHz

fFault,HF

Oscillator fault frequency (5)

XTS = 1, XCAPx = 0, LFXT1Sx = 3(6)

2.2 V, 3 V

300

kHz

5.23 Timer0_A3

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

fTA

Timer0_A3 clock frequency

Internal: SMCLK, ACLK

External: TACLK, INCLK

Duty cycle = 50% ± 10%

2.2 V

MHz

3 V

tTA,cap

Timer0_A3 capture timing

TA0.0, TA0.1, TA0.2

2.2 V, 3 V

V62/13624-01XE-R Datasheet(PDF) 31 Page - Texas Instruments

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