MSP430A005IPW datasheet(21/47 Pages) TI

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MSP430x11x2, MSP430x12x2

MIXED SIGNAL MICROCONTROLLER

SLAS361D − JANUARY 2002 − REVISED AUGUST 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (continued)

wake-up from lower power modes (LPMx)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

t(LPM0)

VCC = 2.2 V/3 V

100

t(LPM2)

VCC = 2.2 V/3 V

100

f(MCLK) = 1 MHz,

VCC = 2.2 V/3 V

t(LPM3)

f(MCLK) = 2 MHz,

VCC = 2.2 V/3 V

µs

(LPM3)

Delay time (see Note 1)

f(MCLK) = 3 MHz,

VCC = 2.2 V/3 V

f(MCLK) = 1 MHz,

VCC = 2.2 V/3 V

t(LPM4)

f(MCLK) = 2 MHz,

VCC = 2.2 V/3 V

µs

(LPM4)

f(MCLK) = 3 MHz,

VCC = 2.2 V/3 V

NOTES:

1. Parameter applicable only if DCOCLK is used for MCLK.

USART (see Note 1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VCC = 2.2 V

200

430

800

t(τ)

USART: deglitch time

VCC = 3 V

150

280

500

NOTES:

1. The signal applied to the USART receive signal/terminal (URXD) should meet the timing requirements of t(τ) to ensure that the URXS

flip-flop is set. The URXS flip-flop is set with negative pulses meeting the minimum-timing condition of t(τ). The operating conditions

to set the flag must be met independently from this timing constraint. The deglitch circuitry is active only on negative transitions on

the URXD line.

RAM

PARAMETER

MIN

NOM

MAX

UNIT

V(RAMh)

CPU halted (see Note 1)

1.6

NOTES:

1. This parameter defines the minimum supply voltage VCC when the data in the program memory RAM remains unchanged. No

program execution should happen during this supply voltage condition.

POR brownout, reset (see Notes 1 and 2)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

td(BOR)

2000

µs

VCC(start)

dVCC/dt ≤ 3 V/s

0.7

× V(B_IT−)

V(B_IT−)

dVCC/dt ≤ 3 V/s

1.71

Vhys(B_IT−)

Brownout

dVCC/dt ≤ 3 V/s

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 brown-out module is already included in the ICC current consumption data.

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. See the MSP430x1xx Family User’s Guide for more information on the brownout circuit.

MSP430A005IPW Datasheet(PDF) 21 Page - Texas Instruments

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