NSC CGS2534V, CGS2534VX Datasheet

TL/F/11921

CGS2534V Commercial/CGS2534TV Industrial

Quad 1 to 4 Clock Drivers

September 1995

CGS2534V Commercial/CGS2534TV Industrial
Quad 1 to 4 Clock Drivers

General Description

These Clock Generation and Support clock drivers are spe­cifically designed for driving memory arrays requiring large
fanouts while operating at high speeds,

CGS2534 isa4to16inverting driver with TTL compatible
I/Os. This device has skew specifications of 350 ps pin-to­pin as well as a 650 ps specification for part-to-part propa­gation delay variation.

Features

Y

Guaranteed and tested:
350 ps pin-to-pin skew (t

OSHL

and t

OSLH

)

Y

650 ps part-to-part variation on positive or negative
transition

Y

Implemented on National’s ABT family process

Y

Symmetric output current drive:b36/36 mA I

OH/IOL

Y

Industrial temperature ofb40§Ctoa85§C

Y

28-pin PLCC for optimum skew performance

Y

Symmetric package orientation

Y

Large fanout for memory driving applications

Y

Guaranteed 2 kV ESD protection

Connection Diagrams

Pin Assignment for 28-Pin PLCC

TL/F/11921– 5

Truth Table

Input Output

ln(0–3) ABCD Out (0–3)

CGS2534

TL/F/11921– 1

C

1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

Absolute Maximum Ratings (Note)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.

Supply Voltage (V

CC

) 7.0V

Input Voltage (VI) 7.0V

Input Current

b

30 mA

Current Applied to Output (High/Low) twice the rated

I

OH/IOL

mA

Operating Temperature

Industrial Grade

b

40§Ctoa85§C

Commercial Grade 0

§

Ctoa70§C

Storage Temperature Range

b

65§Ctoa150§C

Airflow Typical i

JA

0 LFM 62§C/W

225 LFM 43§C/W

500 LFM 34§C/W

900 LFM 27§C/W

Recommended Operating
Conditions

Supply Voltage (VCC) 4.5V to 5.5V

Maximum Input Rise/Fall Time (0.8V to 2.0V) 5 ns

Free Air Operating Temperature (T

A

)

Industrial

b

40§Ctoa85§C

Commercial 0

§

Ctoa70§C

Note:

The Absolute Maximum Ratings are those values be­yond which the safety of the device cannot be guaranteed.
The device should not be operated at these limits. The para­metric values defined in the DC and AC Electrical Charac­teristics tables are not guaranteed at the absolute maximum
ratings. The Recommended Operating Conditions will de­fine the conditions for actual device operation.

DC Electrical Characteristics

Over recommended operating conditions unless otherwise specified. All typical values are measured at V

CC

e

5V, T

A

e

25§C

Symbol Parameter Conditions Min Typ Max Unit

V

IL

Input Low Level Voltage 0.8 V

V

IH

Input High Level Voltage 2.0 V

V

IK

Input Clamp Voltage V

CC

e

4.5V, I

I

eb

18 mA

b

1.2 V

V

OH

High Level Output Voltage I

OH

eb

3 mA, V

CC

e

4.5V 2.4
V

(Note 5)

I

OH

eb

36 mA, V

CC

e

4.5V 2.0

V

OL

Low Level Output Voltage V

CC

e

4.5V, I

OL

e

36 mA 0.4 0.5

V

(Note 5)

V

CC

e

4.5V, I

OL

e

50 mA 0.1 0.1

I

I

Input Current@Max Input Voltage V

CC

e

5.5V, V

IH

e

7V 7 mA

I

IH

High Level Input Current V

CC

e

5.5V, V

IH

e

2.7V 5 mA

I

IL

Low Level Input Current V

CC

e

5.5V, V

IL

e

0.4V

b

5 mA

I

OS

Output Drive Current V

CC

e

5.5V, V

O

e

0V

b

100 275 mA

I

OLD

Minimum Dynamic Output Current V

CC

e

5.5V, V

OLD

e

0.8V
70 mA

(Note 1)

I

OHD

Minimum Dynamic Output Current V

CC

e

5.5V, V

OHD

e

2.0V

b

90 mA

(Note 1)

I

CCT

Maximum ICC/Input V

CC

e

5.5V 3.6 mA

I

CC

Supply Current ’2534 (Quiescent) V

CC

e

5.5V 235 mA

C

IN

Input Capacitance V

CC

e

5V 5 pF

Note 1: Maximum test duration 2.0 ms, one output loaded at a time.

2