17

4890AS–GPS–09/05

ATR0621 [Preliminary]

4.

Oscillator

Figure 4-1.

Crystal Connection

32 kHz

Crystal

Oscillator

XT_IN

XT_OUT

ATR0621 internal

32.768 kHz clock

RTC

32.768 kHz

50 ppm

max.

25 pF

max.

25 pF

5.

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

+1.95

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

EM_DA0 to EM_DA15, P0,

P3 to P7, P10, P11, P15,

P28, 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, P30

–0.3

+5.0

V

Note:

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