1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

www.intersil.com or 407-727-9207

Satellite Applications Flow™ (SAF) is a trademark of Intersil Corporation.

HCS373T

Radiation Hardened Octal Transparent

Latch, Three-State

tested and guaranteed to 100kRAD total dose. These QML

Class T devices are processed to a standard flow intended

to meet the cost and shorter lead-time needs of large

volume satellite manufacturers, while maintaining a high

level of reliability.

The Intersil HCS373T is a Radiation Hardened Octal

Transparent Three-State Latch with an active-low output

enable. The HCS373T utilizes advanced CMOS/SOS

technology. The outputs are transparent to the inputs when

the Latch Enable (LE) is HIGH. When the Latch Enable (LE)

goes LOW, the data is latched. The Output Enable (OE)

controls the three-state outputs. When the Output Enable

(OE) is HIGH, the outputs are in the high impedance state.

The latch operation is independent of the state of the Output

Enable.

Specifications

Specifications for Rad Hard QML devices are controlled by

the Defense Supply Center in Columbus (DSCC). The SMD

numbers listed below must be used when ordering.

Detailed Electrical Specifications for the HCS373T are

contained in SMD 5962-95792. A “hot-link” is provided from

our website for downloading.

www.intersil.com/spacedefense/newsafclasst.asp

Intersil’s Quality Management Plan (QM Plan), listing all

Class T screening operations, is also available on our

website.

www.intersil.com/quality/manuals.asp

Features

• QML Class T, Per MIL-PRF-38535

• Radiation Performance

- Gamma Dose (

- Latch-Up Free Under Any Conditions

Errors/Bit-Day (Typ)

• 3 Micron Radiation Hardened CMOS SOS

• Significant Power Reduction Compared to LSTTL ICs

• DC Operating Voltage Range: 4.5V to 5.5V

• Input Logic Levels

• Input Current Levels Ii

Pinouts

HCS373DTR (SBDIP), CDIP2-T20

TOP VIEW

HCS373KTR (FLATPACK), CDFP4-F20

TOP VIEW

Ordering Information

ORDERING

NUMBER

PART NUMBER

TEMP.

RANGE

5962R9579201TRC

HCS373DTR

-55 to 125

5962R9579201TXC

HCS373KTR

-55 to 125

NOTE:

Minimum order quantity for -T is 150 units through

distribution, or 450 units direct.

11

12

13

14

15

16

17

18

20

19

10

9

8

7

6

5

4

3

2

1

OE

Q0

D0

D1

Q1

Q2

D3

D2

Q3

GND

D7

D6

Q6

Q7

Q5

D5

D4

Q4

LE

2

3

4

5

6

7

8

120

19

18

17

16

15

14

13

OE

Q0

D0

D1

Q1

Q2

D2

D3

9

10

12

11

Q3

GND

Q7

D7

D6

Q6

Q5

D5

D4

Q4

LE

Data Sheet

July 1999

File Number

4617.1