Integrated
Circuit
Systems, Inc.
ICS840-125
125MH
Z
, LVCMOS/LVTTL
O
SCILLATOR
R
EPLACEMENT
R
ELIABILITY
I
NFORMATION
T
ABLE
7A.
θ
JA
VS
. A
IR
F
LOW
T
ABLE FOR
8 L
EAD
TSSOP
θ
JA
by Velocity (Meters per Second)
0
Multi-Layer PCB, JEDEC Standard Test Boards
101.7°C/W
1
90.5°C/W
2.5
89.8°C/W
T
ABLE
7B.
θ
JA
VS
. A
IR
F
LOW
T
ABLE
8 L
EAD
SOIC
θ
JA
by Velocity (Linear Feet per Minute)
0
Single-Layer PCB, JEDEC Standard Test Boards
Multi-Layer PCB, JEDEC Standard Test Boards
153.3°C/W
112.7°C/W
200
128.5°C/W
103.3°C/W
500
115.5°C/W
97.1°C/W
NOTE:
Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.
T
RANSISTOR
C
OUNT
The transistor count for ICS840-125 is: 2423
840AG-125
www.icst.com/products/hiperclocks.html
7
REV. A FEBRUARY 3, 2006
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
