MSP430 datasheet(22/96 Pages) TI2

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VCC(drop)

VCC

3 V

t pw

0.5

1.5

0.001

1000

Typical Conditions

1 ns

tpw − Pulse Width − µs

VCC = 3 V

td(BOR)

(B_IT−)

hys(B_IT−)

VCC(start)

MSP430G2533, MSP430G2433, MSP430G2333, MSP430G2233

MSP430G2403, MSP430G2303, MSP430G2203

SLAS734G – APRIL 2011 – REVISED APRIL 2016

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Product Folder Links: MSP430G2533 MSP430G2433 MSP430G2333 MSP430G2233 MSP430G2403 MSP430G2303

MSP430G2203

Specifications

(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.

5.16 POR, BOR

(1) (2)

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

PARAMETER

TEST

CONDITIONS

VCC

MIN

TYP

MAX

UNIT

VCC(start)

See Figure 5-12

dVCC/dt ≤ 3 V/s

0.7 V(B_IT--)

V(B_IT–)

See Figure 5-12 through Figure 5-14

dVCC/dt ≤ 3 V/s

1.35

Vhys(B_IT–)

See Figure 5-12

dVCC/dt ≤ 3 V/s

140

td(BOR)

See Figure 5-12

2000

µs

t(reset)

Pulse duration needed at RST/NMI pin to accepted

reset internally

2.2 V

µs

Figure 5-12. POR and BOR vs Supply Voltage

Figure 5-13. VCC(drop) Level With a Square Voltage Drop to Generate a POR or BOR Signal

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