ATR0621P_08 Datasheet, PDF (24/31 Pages) ATMEL Corporation – GPS Baseband GPS Baseband

5. RTC Oscillator
Figure 5-1. Crystal Connection
32.768 kHz
50 ppm
C
C
XT_IN
XT_OUT
ATR0621P internal
32 kHz
Crystal
Oscillator
32.768 kHz clock
RTC
C = 2 × C_load, C_load can be derived from the crystal datasheet. Maximum value for C is 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
VDD18
–0.3
+1.95
V
VDDIO
–0.3
+3.6
V
DC supply voltage
VDD_USB
LDO_IN
–0.3
+3.6
V
–0.3
+3.6
V
LDOBAT_IN
–0.3
+3.6
V
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
USB_DM, USB_DP
–0.3
+3.6
V
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
7. Thermal Resistance
Parameters
Junction ambient, according to JEDEC51-9
Symbol
R_thJA
Value
Unit
36.9
K/W
24 ATR0621P
4890H–GPS–08/08