MSP430F167IPMR datasheet(33/77 Pages) TI

33 / 77 page

MSP430F15x, MSP430F16x, MSP430F161x

MIXED SIGNAL MICROCONTROLLER

SLAS368G − OCTOBER 2002 − REVISED MARCH 2011

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature (unless otherwise

noted) (continued)

POR/brownout reset (BOR) (see Notes 1 and 2)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

td(BOR)

2000

μs

VCC(Start)

dVCC/dt ≤ 3 V/s (see Figure 10)

0.7

× V(B_IT−)

V(B_IT−)

Brownout

dVCC/dt ≤ 3 V/s (see Figure 10 through Figure 12)

1.71

Vhys(B_IT−)

Brownout

dVCC/dt ≤ 3 V/s (see Figure 10)

130

180

t(reset)

Pulse length needed at RST/NMI pin to accepted reset internally,

VCC = 2.2 V/3 V

μs

NOTES:

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 tBOR(delay) 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. See the MSP430x1xx Family User’s Guide (SLAU049) for more information on the brownout/SVS circuit.

typical characteristics

t d(BOR)

VCC

V(B_IT−)

Vhys(B_IT−)

VCC(Start)

BOR

Figure 10. POR/Brownout Reset (BOR) vs Supply Voltage

MSP430F167IPMR 数据表(PDF) 33 Page - Texas Instruments

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