TEXAS INSTRUMENTS CDC329 Technical data
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CDC329
1-LINE TO 6-LINE CLOCK DRIVER
WITH SELECTABLE POLARITY
SCBS117A–D4501, JANUAR Y 1991–REVISED NOVEMBER 1992
GND
1Y2
2Y1
GND
2Y2
3Y
GND
4Y
D PACKAGE
(TOP VIEW)
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
1Y1
1T
/C
V
CC
2T/C
A
V
CC
3T/C
4T
/C
• Low Output Skew for Clock-Distribution
and Clock-Generation Applications
• State-of-the-Art
EPIC-ΙΙB
BiCMOS Design
Significantly Reduces Power Dissipation
• TTL-Compatible Inputs and
CMOS-Compatible Outputs
• Distributes One Clock Input to Six Clock
Outputs
• Polarity Control Selects True or
Complementary Outputs
• Distributed V
and GND Pins Reduce
CC
Switching Noise
• High-Drive Outputs (–15-mA I
OH
,
64-mA IOL)
• Packaged in Plastic Small-Outline Package
description
The CDC329 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 CDC329 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
T/C A
L L L
L HH
H LH
H H L
logic symbol
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
†
12
A
1T/C
2T
3T/C
4T
15
13
/C
10
9
/C
N1
N2
N3
N4
OUTPUT
Y
1
1
2
2
3
4
16
1Y1
2
1Y2
3
2Y1
5
2Y2
6
3Y
8
4Y
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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1992, Texas Instruments Incorporated
1
CDC329
1-LINE TO 6-LINE CLOCK DRIVER
WITH SELECTABLE POLARITY
SCBS117A–D4501, JANUAR Y 1991–REVISED NOVEMBER 1992
logic diagram (positive logic)
15
1T/C
13
/C
2T
12
A
10
3T
/C
9
/C
4T
16
1Y1
2
1Y2
3
2Y1
5
2Y2
6
3Y
8
4Y
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state
or power-off state, VO (see Note 1) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, I
Input clamp current, I
Output clamp current, I
(V
< 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
I
(V
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OK
O
128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
Continuous total power dissipation at (or below) 25°C free-air temperature (see Note 2) 1000 mW. . . . . . . .
Storage temperature range –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. For operation above 25°C free-air temperature, derate to 478 mW at 85°C at the rate of 8.7 mW/°C.
recommended operating conditions (see Note 3)
MIN NOM MAX UNIT
V
CC
V
IH
V
IL
V
I
I
OH
I
OL
∆t/∆v Input transition rise or fall rate 5 ns/V
T
A
NOTE 3: Unused inputs must be held high or low.
Supply voltage 4.75 5 5.25 V
High-level input voltage 2 V
Low-level input voltage 0.8 V
Input voltage 0 V
High-level output current –15 mA
Low-level output current 64 mA
Operating free-air temperature –40 85 °C
CC
V
†
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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