V62SLASH13624-01XE-R datasheet(25/77 Pages) TI1

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DCO(RSEL,DCO)

DCO(RSEL,DCO+1)

average

DCO(RSEL,DCO)

DCO(RSEL,DCO+1)

32 × f

× f

MOD × f

+ (32 – MOD) × f

t d(BOR)

VCC

V(B_IT−)

Vhys(B_IT−)

VCC(start)

MSP430F2132-EP

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SLAS913A – JULY 2013 – REVISED AUGUST 2013

Product Folder Links: MSP430F2132-EP

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(1)

The current consumption of the brownout module is already included in the ICC current consumption data. The voltage level

V(B_IT-) + Vhys(B_IT-) is ≤ 1.8 V.

(2)

During power up, the CPU begins code execution following a period of td(BOR) after VCC = V(B_IT-) + Vhys(B_IT-). The default DCO settings

must not be changed until VCC ≥ VCC(min), where VCC(min) is the minimum supply voltage for the desired operating frequency.

5.11 POR and Brownout Reset (BOR)

(1) (2)

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

Characteristics - POR/Brownout Reset (BOR) for related characterization graphs.

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VCC(start)

See Figure 3

dVCC /dt ≤ 3 V/s

0.7 ×

V(B_IT-)

See Figure 3 through Figure 20

dVCC /dt ≤ 3 V/s

1.75

Vhys(B_IT-)

See Figure 3

dVCC /dt ≤ 3 V/s

130

215

td(BOR)

See Figure 3

2000

µs

t(reset)

Pulse duration needed at RST/NMI

pin to accepted reset internally

2.2 V, 3 V

µs

Figure 3. POR and BOR vs Supply Voltage

5.12 Main DCO Characteristics

•

All ranges selected by RSELx overlap with RSELx + 1: RSELx = 0 overlaps RSELx = 1, ... RSELx = 14

overlaps RSELx = 15.

•

DCO control bits DCOx have a step size as defined by parameter SDCO.

•

Modulation control bits MODx select how often fDCO(RSEL,DCO+1) is used within the period of 32 DCOCLK

cycles. The frequency fDCO(RSEL,DCO) is used for the remaining cycles. The frequency is an average equal to:

5.13 DCO Frequency

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

Characteristics - Calibrated 1-MHz DCO Frequency for related characterization graphs.

V62/13624-01XE-R Datasheet(PDF) 25 Page - Texas Instruments

V62/13624-01XE-R Datasheet(HTML) 25 Page - Texas Instruments

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