FN3059 Rev 1.00

Page 1 of 9

September 1995

FN3059

Rev 1.00

September 1995

HCTS85MS

Radiation Hardened 4-Bit Magnitude Comparator

DATASHEET

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)

• Dose Rate Survivability: >1 x 1012 RAD (Si)/s

• Dose Rate Upset >1010 RAD (Si)/s 20ns Pulse

• 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

• LSTTL Input Compatibility

-VIL = 0.8V Max

-VIH = VCC/2 Min

• Input Current Levels Ii

 5A at VOL, VOH

Description

The Intersil HCTS85MS is a Radiation Hardened 4-bit high

speed magnitude comparator. This device compares two

binary, BCD, or other monotonic codes and presents the

three possible magnitude results at the outputs (A>B, A<B,

and A=B). The 4-bit input words are weighted (A0 to A3 and

B0 to B3), where A3 and B3 are the most significant bits.

The HCTS85MS is expandable without external gating, both

serial and parallel operation.

The HCTS85MS utilizes advanced CMOS/SOS technology

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

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

with TTL input compatibility.

The HCTS85MS 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, LEAD FINISH C

TOP VIEW

16 LEAD CERAMIC METAL SEAL FLATPACK PACKAGE

(FLATPACK) MIL-STD-1835 CDFP4-F16, LEAD FINISH C

TOP VIEW

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

B3

(A<B)IN

(A=B)IN

(A>B)IN

(A<B)OUT

(A=B)OUT

GND

(A>B)OUT

VCC

B2

A2

A1

B1

A0

B0

A3

2

3

4

5

6

7

8

116

15

14

13

12

11

10

9

B3

(A<B)IN

(A=B)IN

(A>B)IN

(A<B)OUT

(A=B)OUT

GND

(A>B)OUT

VCC

B2

A2

A1

B1

A0

B0

A3

Ordering Information

PART NUMBER

TEMPERATURE RANGE

SCREENING LEVEL

PACKAGE

HCTS85DMSR

-55oC to +125oC

Intersil Class S Equivalent

16 Lead SBDIP

HCTS85KMSR

-55oC to +125oC

Intersil Class S Equivalent

16 Lead Ceramic Flatpack

HCTS85D/Sample

+25oC

Sample

16 Lead SBDIP

HCTS85K/Sample

+25oC

Sample

16 Lead Ceramic Flatpack

HCTS85HMSR

+25oCDie

Die