30F4013 datasheet(187/228 Pages) MICROCHIP

187 / 228 page

 2010 Microchip Technology Inc.

DS70138G-page 187

dsPIC30F3014/4013

FIGURE 23-7:

BAND GAP START-UP TIME CHARACTERISTICS

TABLE 23-20: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER

AND BROWN-OUT RESET TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 2.5V to 5.5V

(unless otherwise stated)

Operating temperature

-40°C

 TA  +85°C for Industrial

-40°C

 TA  +125°C for Extended

Param

No.

Symbol

Characteristic(1)

Min

Typ(2)

Max

Units

Conditions

SY10

TmcL

MCLR Pulse Width (low)

—

s

-40°C to +85°C

SY11

TPWRT

Power-up Timer Period

128

-40°C to +85°C,

VDD = 5V

User programmable

SY12

TPOR

Power-on Reset Delay

s

-40°C to +85°C

SY13

TIOZ

I/O High-Impedance from MCLR

Low or Watchdog Timer Reset

—0.8

1.0

s

SY20

TWDT1

TWDT2

TWDT3

Watchdog Timer Time-out Period

(no prescaler)

1.1

1.2

1.3

2.0

6.6

5.0

4.0

VDD = 2.5V

VDD = 3.3V, ±10%

VDD = 5V, ±10%

SY25

TBOR

Brown-out Reset Pulse Width(3)

100

—

sVDD VBOR (D034)

SY30

TOST

Oscillator Start-up Timer Period

—

1024 TOSC

——

TOSC = OSC1 period

SY35

TFSCM

Fail-Safe Clock Monitor Delay

—

500

900

s

-40°C to +85°C

Note 1:

These parameters are characterized but not tested in manufacturing.

Data in “Typ” column is at 5V, 25°C unless otherwise stated.

Refer to Figure 23-2 and Table 23-11 for BOR.

TABLE 23-21: BAND GAP START-UP TIME REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 2.5V to 5.5V

(unless otherwise stated)

Operating temperature

-40°C

 TA  +85°C for Industrial

-40°C

 TA  +125°C for Extended

Param

No.

Symbol

Characteristic(1)

Min

Typ(2)

Max

Units

Conditions

SY40

TBGAP

Band Gap Start-up Time

—

s

Defined as the time between the

instant that the band gap is enabled

and the moment that the band gap

reference voltage is stable

(RCON<13> status bit)

Note 1:

These parameters are characterized but not tested in manufacturing.

Data in “Typ” column is at 5V, 25°C unless otherwise stated.

VBGAP

Enable Band Gap(1)

Band Gap

Stable

Note 1:

Note: Set LVDEN bit (RCON<12>) or FBORPOR<7>set.

SY40

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