atr0621-ek1 ATMEL Corporation, atr0621-ek1 Datasheet - Page 20

• Manufacturer Part Number: atr0621-ek1
• Description: Atr0622p Gps Baseband Processor
• Manufacturer: ATMEL Corporation

5. RTC Oscillator
Figure 5-1.
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.
7. Thermal Resistance
20
Parameters
Operating free air temperature range
Storage temperature
DC supply voltage
DC input voltage
Note:
Parameters
Junction ambient, according to JEDEC51-5
Minimum/maximum limits are at +25°C ambient temperature, unless otherwise specified
ATR0622P
Crystal Connection
C
C = 2
32.768 kHz
C
50 ppm
load
, C
C
load
can be derived from the crystal datasheet. Maximum value for C is 25 pF.
EM_DA0 to EM_DA15, P0, P3 to P7,
SIGLO, CLK23, XT_IN, TMS, TCK,
P1, P2, P8, P9, P12 to P14, P16 to
TDI, NTRST, DBG_EN, LDO_EN,
P10, P11, P15, P28, P30, SIGHI,
XT_OUT
XT_IN
USB_DM, USB_DP
P27, P29, P31
LDOBAT_IN
VDD_USB
NRESET
LDO_IN
VDD18
VDDIO
VBAT
Pin
Symbol
R
thJA
Oscillator
32 kHz
Crystal
32.768 kHz clock
Symbol
ATR0622P internal
Value
24.2
Min.
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–40
–60
RTC
+1.95
+1.95
Max.
+150
+3.6
+3.6
+3.6
+3.6
+3.6
+3.6
+5.0
+85
4891F–GPS–09/07
Unit
Unit
K/W
°C
°C
V
V
V
V
V
V
V
V
V