CDC391
1-LINE TO 6-LINE CLOCK DRIVER
WITH SELECTABLE POLARITY AND 3-STATE OUTPUTS
SCAS334A – DECEMBER 1992 – REVISED NOVEMBER 1995
D
D
D
D
D
D
D
D
Low Output Skew for Clock-Distribution
and Clock-Generation Applications
TTL-Compatible Inputs and Outputs
Distributes One Clock Input to Six Clock
Outputs
Polarity Control Selects True or
Complementary Outputs
Distributed V
CC
and GND Pins Reduce
Switching Noise
High-Drive Outputs (– 48-mA I
OH
,
48-mA I
OL
)
State-of-the-Art
EPIC-
ΙΙ
B
™
BiCMOS Design
Significantly Reduces Power Dissipation
Packaged in Plastic Small-Outline Package
D PACKAGE
(TOP VIEW)
GND
1Y2
1Y3
GND
2Y1
2Y2
GND
3Y1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1Y1
1T/C
V
CC
2T/C
A
V
CC
3T/C
OE
description
The CDC391 contains a clock-driver circuit that distributes one input signal to six outputs with minimum skew
for clock distribution. Through the use of the polarity-control (T/C) inputs, various combinations of true and
complementary outputs can be obtained. The output-enable (OE) input is provided to disable the outputs to a
high-impedance state.
The CDC391 is characterized for operation from – 40°C to 85°C.
FUNCTION TABLE
INPUTS
OE
H
L
L
L
L
T/C
X
L
L
H
H
A
X
L
H
L
H
OUTPUT
Y
Z
L
H
H
L
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC-ΙΙB is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
©
1995, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1