Rainbow-electronics ATR0622 Manual do Utilizador descarregar pdf (Página 20)

4891CS–GPS–01/06

ATR0622 [Preliminary]

5. Oscillator

Figure 5-1. Crystal Connection

XT_IN

XT_OUT

RTC

ATR0622 internal

32 kHz

Crystal

Oscillator

32.768 kHz clock

32.768 kHz

50 ppm

max.

25 pF

max.

25 pF

6. Absolute Maximum Ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating

only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Parameters Pin Symbol Min. Max. Unit

Operating Free Air Temperature Range –40 +85 °C

Storage Temperature –60 +150 °C

DC Supply Voltage VDD18 –0.3 +1.95 V

DC Supply Voltage VDDIO –0.3 +3.6 V

DC Supply Voltage VDD_USB –0.3 +3.6 V

DC Supply Voltage LDO_IN –0.3 +3.6 V

DC Supply Voltage LDOBAT_IN –0.3 +3.6 V

DC Supply Voltage VBAT –0.3 +3.6 V

DC Input Voltage

P0, P15, P30, SIGHI, SIGLO,

CLK23, XT_IN, TMS, TCK,

TDI, NTRST, DBG_EN,

LDO_EN, NRESET

–0.3 +1.95 V

DC Input Voltage USB_DM, USB_DP –0.3 +3.6 V

DC Input Voltage

P1, P2, P8, P9, P12 to P14,

P16 to P27, P29, P31

–0.3 +5.0 V

Note: Minimum/maximum limits are at +25°C ambient temperature, unless otherwise specified

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