Datasheet

ADATE207
Rev. 0 | Page 6 of 36
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter Rating
VDD −0.3 V to +2.8 V
Digital Inputs −0.3 V to VDD + 0.3 V
Resistor Termination pins −0.3 to VDD + 0.3 V
Resistor Termination Current 12 mA max
Termination Pad Current 12 mA max
Junction Temperature 125°C
Storage Temperature −40 to 125°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Table 4. Recommended Operating/Environmental
Conditions
Parameter Min Typ Max Unit
VDD 2.375 2.5 2.625 V
Case Temperature (T
C
) 85 °C
Relative Humidity
(Noncondensing)
85 %
THERMAL RESISTANCE
Table 5. Thermal Resistance
Package Type θ
JA
θ
JC
Unit
256-Lead BGA_ED 1.5 °C/W
In Still Air 14.3 °C/W
200 LFPM 12.0 °C/W
400 LFPM 11.2 °C/W
BYPASSING SCHEME
For decoupling, best practice suggests that to preserve as much
of the plane-to-plane capacitance as possible, do not perforate
the planes for VSS and VDD. Secondly, it is advisable to decouple
VDD to VSS by using 0.1 μF high frequency ceramic capacitors.
The trace to the capacitor should be kept to an absolute minimum
length. It is recommend that one capacitor be placed in the
corner of the chip and one in the middle of each side for a total
of eight capacitors for VDD to VSS. Furthermore, decouple
IOVDD to IOVSS on each side of the device. It is recommended
that 10 μF tantalum or ceramic capacitors be used for low
frequency decoupling around the device. It is not important for
these capacitors to be close to the device.
Table 6. Data Table for 256-Lead Ball Grid Array, Thermally
Enhanced, 27 mm × 27 mm Body
Dimension
Minimum
(mm)
Nominal
(mm)
Maximum
(mm)
A 1.70
A1 0.50 0.60 0.70
A2 0.60 0.80 1.00
D 26.90 27.00 27.10
D1 24.03 24.13 24.23
E 26.90 27.00 27.10
E1 24.03 24.13 24.23
b 0.60 0.75 0.90
e 1.27
aaa 0.20
bbb 0.25
ccc 0.35
ddd 0.20
eee 0.30
fff 0.15
S 0.635
ESD CAUTION