CDC328
1 LINE TO 6 LINE CLOCK DRIVER
WITH SELECTABLE POLARITY
SCBS116B − JANUARY 1991 − REVISED MARCH 1994
•
•
•
•
•
•
•
•
•
Replaces SN74ABT328
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 (−15-mA I
OH
,
64-mA I
OL
)
State-of-the-Art
EPIC-ΙΙB
BiCMOS Design
Significantly Reduces Power Dissipation
Package Options Include Plastic
Small-Outline (D) and Shrink Small-Outline
(DB) Packages
D OR DB PACKAGE
(TOP VIEW)
GND
1Y2
2Y1
GND
2Y2
3Y
GND
4Y
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
4T/C
description
The CDC328 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 inputs (T/C), various combinations of true and
complementary outputs can be obtained.
The CDC328 is characterized for operation from − 40°C to 85°C.
FUNCTION TABLE
INPUTS
T/C
L
L
H
H
A
L
H
L
H
OUTPUT
Y
L
H
H
L
logic symbol
†
A
1T/C
2T/C
12
15
13
N1
N2
1
1
2
2
N3
N4
3
4
16
2
3
5
6
8
1Y1
1Y2
2Y1
2Y2
3Y
4Y
3T/C
4T/C
10
9
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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
1994, Texas Instruments Incorporated
POST OFFICE BOX 655303
POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251−1443
•
DALLAS, TEXAS 75265
2−1
TI [ TEXAS INSTRUMENTS ]
