FN2469 Rev 2.00

Page 1 of 9

September 1995

FN2469

Rev 2.00

September 1995

HCS161MS

Radiation Hardened Synchronous Counter

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

• Cosmic Ray Upset Immunity 2 x 10-9 Error/Bit Day

(Typ)

• Latch-Up Free Under Any Conditions

• 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

Description

The Intersil HCS161MS is a Radiation Hardened 4-Input

Binary; synchronous counter featuring asynchronous reset

and look-ahead carry logic. The HCS161 has an active-low

master reset to zero, MR. A low level at the synchronous

parallel enable, SPE, disables counting and allows data at

the preset inputs (p0 - p3) to load the counter. The data is

latched to the outputs on the positive edge of the clock input,

CP. The HCS161MS has two count output, IC. The terminal

count output indicates a maximum count for one clock pulse

and is used to enable the next cascaded stage to count.

The HCS161MS 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 HCS161MS 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

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

CP

P0

P1

P2

P3

GND

PE

Q0

Q1

Q2

Q3

TE

TC

MR

VCC

SPEN

2

3

4

5

6

7

8

116

15

14

13

12

11

10

9

CP

P0

P1

P2

P3

GND

PE

MR

Q0

Q1

Q2

Q3

TE

TC

VCC

SPE

Ordering Information

PART NUMBER

TEMPERATURE RANGE

SCREENING LEVEL

PACKAGE

HCS161DMSR

-55oC to +125oC

Intersil Class S Equivalent

16 Lead SBDIP

HCS161KMSR

-55oC to +125oC

Intersil Class S Equivalent

16 Lead Ceramic Flatpack

HCS161D/Sample

+25oC

Sample

16 Lead SBDIP

HCS161K/Sample

+25oC

Sample

16 Lead Ceramic Flatpack

HCS161HMSR

+25oCDie

Die