FN2473 Rev 3.01

Page 1 of 10

Feb 24, 2022

© 1995 Renesas Electronics

FN2473

Rev 3.01

Feb 24, 2022

HCS138MS

Radiation Hardened Inverting3-to-8 Line Decoder/Demultiplexer

DATASHEET

The HCS138MS is a Radiation Hardened 3-to-8 line

Decoder/Demultiplexer. The outputs are active in the low

state. Two active low and one active high enables (E1, E2,

E3) are provided. If the device is enabled, the binary inputs

(A0, A1, A2) determine which one of the eight normally high

outputs will go to a low logic level.

The HCS138MS utilizes advanced CMOS/SOS technology

to achieve high-speed operation. This device is a member of

radiation hardened, high-speed, CMOS/SOS Logic Family.

The HCS138MS is supplied in a 16 lead Ceramic flatpack

(K suffix) or a SBDIP Package (D suffix).

Pinouts

16 LEAD CERAMIC DUAL-IN-LINE

METAL SEAL PACKAGE (SBDIP)

MIL-STD-1835 CDIP2-T16

TOP VIEW

16 LEAD CERAMIC METAL SEAL

FLATPACK PACKAGE (FLATPACK)

MIL-STD-1835 CDFP4-F16

TOP VIEW

Features

• 3 Micron Radiation Hardened SOS CMOS

• Total Dose 200K RAD (Si)

• SEP Effective LET No Upsets: >100 MEV-cm2/mg

• Single Event Upset (SEU) Immunity < 2 x 10-9 Errors/Bit-

Day (Typ)

• Latch-Up Free Under Any Conditions

• Fanout (Over Temperature Range)

- Standard Outputs - 10 LSTTL Loads

• Military Temperature Range: -55oC to +125oC

• Significant Power Reduction Compared to LSTTL ICs

• DC Operating Voltage Range: 4.5V to 5.5V

• Input Logic Levels

-VIL = 0.3 VCC Max

-VIH = 0.7 VCC Min

• Input Current Levels Ii

 5A at VOL, VOH

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

A0

A1

A2

E1

E2

E3

GND

Y7

VCC

Y1

Y2

Y3

Y4

Y5

Y6

Y0

A0

A1

A2

E1

E2

E3

Y7

GND

VCC

Y0

Y1

Y2

Y3

Y4

Y5

Y6

2

3

4

5

6

7

8

116

15

14

13

12

11

10

9

Ordering Information

PART NUMBER

TEMP

RANGE

SCREENING

LEVEL

PACKAGE

HCS138DMSR

-55oC to

+125oC

Renesas Class S

Equivalent

16 Lead

SBDIP

HCS138KMSR

-55oC to

+125oC

Renesas Class S

Equivalent

16 Lead

Ceramic

Flatpack

HCS138HMSR

+25oCDie

Die