DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 251

• Manufacturer Part Number: DS21458LDK
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

37. OPERATING PARAMETERS
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………..-1.0V to +6.0V
Operating Temperature Range for DS21455/DS21458………………………………………0C to +70C
Operating Temperature Range for DS21455N/DS21458N………………………………...-40C to +85C
Storage Temperature Range……………………………………………………………….-55C to +125C
Soldering Temperature ………………………………………………………..See IPC/JEDEC J-STD-020
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time can affect device
reliability.
THERMAL CHARACTERISTICS
NOTES:
1) The package is mounted on a four-layer JEDEC standard test board.
2)
THETA-JA (
Ambient Temperature
Junction Temperature
Theta-JA (
CSBGA
Theta-JA (
BGA
Theta-JA (
layer JEDEC standard test board.
(meters per second)
FORCED AIR
JA
JA
) in Still Air for 256-Pin 17mm
) in Still Air for 256-Pin 27mm
PARAMETER
2.5
0
1
JA
) is the junction-to-ambient thermal resistance, when the package is mounted on a four-
JA
) vs. AIRFLOW
THETA-JA (
17mm CSBGA
29.9C/W
26.0C/W
23.2C/W
251 of 269
-40C
MIN
—
—
—
JA
)
29.9C/W
20.5C/W
DS21455/DS21458 Quad T1/E1/J1 Transceivers
TYP
—
—
THETA-JA (
27mm BGA
17.5 C/W
20.5C/W
15.5C/W
+125C
+85C
MAX
—
—
JA
NOTES
)
1
2
2