CDC9841
PC MOTHERBOARD CLOCK SYNTHESIZER/DRIVER
WITH 3-STATE OUTPUTS
SCAS458D – DECEMBER 1994 – REVISED APRIL 1996
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 4.6 V
Input voltage range, V
I
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 4.6 V
Voltage range applied to any output in the high state or power-off state,
V
O
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to V
CC
+ 0.5 V
Current into any output in the low state, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
I
OHmax
Input clamp current, I
IK
(V
I
< 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 18 mA
Output clamp current, I
OK
(V
O
< 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 50 mA
Maximum power dissipation at T
A
= 55°C (in still air) (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 W
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils.
For more information, refer to the
Package Thermal Considerations
application note in the 1994
ABT Advanced BiCMOS Technology
Data Book,
literature number SCBD002B.
recommended operating conditions (see Note 3)
MIN
VCC
VIH
VIL
VI
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
REF0
REF1
IOH
High-level output current
PCLKn
BCLKn
CLK24, CLK12
REF0
REF1
IOL
Low-level output current
PCLKn
BCLKn
CLK24, CLK12
TA
Operating free-air temperature
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
0
0
3.135
2
0.8
VCC
– 12
–8
–6
– 12
–4
12
8
6
12
4
70
°C
mA
mA
MAX
3.6
UNIT
V
V
V
V
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
