
1
December 1997
ACS138MS
Radiation Hardened
3-to-8 Line Decoder/Demultiplexer
Features
QML Qualied Per MIL-PRF-38535 Requirements
1.25Micron Radiation Hardened SOS CMOS
Radiation Environment
- Latch-up Free Under any Conditions
- Total Dose . . . . . . . . . . . . . . . . . . . . . . 3 x 105 RAD(Si)
- SEU Immunity . . . . . . . . . . . <1 x 10-10 Errors/Bit/Day
- SEU LET Threshold . . . . . . . . . . . >100MeV/(mg/cm2)
Input Logic Levels . . . VIL = (0.3V)(VCC), VIH = (0.7V)(VCC)
Output Current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±12mA
Quiescent Supply Current. . . . . . . . . . . . . . . . . . . .20
A
Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
Applications
Memory Decoding
Data Routing
Code Conversion
Description
The Radiation Hardened ACS138MS is an Inverting 3-to-8
Line Decoder/Demultiplexer with three binary select inputs
(A0, A1 and A2). If the device is enabled, these inputs deter-
mine which one of the eight normally high outputs will go
low.
Two active low and one active high enable inputs (E1, E2 and
E3) are provided to make cascaded decoder designs easier
to implement.
The ACS138MS is fabricated on a CMOS Silicon on Sap-
phire (SOS) process, which provides an immunity to Single
Event Latch-up and the capability of highly reliable perfor-
mance in any radiation environment. These devices offer
signicant power reduction and faster performance when
compared to ALSTTL types.
Specications 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 Specications for the ACS138 are
contained in SMD 5962-98534. A “hot-link” is provided
on our homepage with instructions for downloading.
http://www.intersil.com/data/sm/index.htm
Ordering Information
Pinouts
ACS138 (SBDIP)
TOP VIEW
ACS138 (FLATPACK)
TOP VIEW
SMD PART NUMBER
INTERSIL PART NUMBER
TEMP. RANGE (oC)
PACKAGE
CASE OUTLINE
5962F9853401VEC
ACS138DMSR-02
-55 to 125
16 Ld SBDIP
CDIP2-T16
N/A
ACS138D/Sample-02
25
16 Ld SBDIP
CDIP2-T16
5962F9853401VXC
ACS138KMSR-02
-55 to 125
16 Ld Flatpack
CDFP4-F16
N/A
ACS138K/Sample-02
25
16 Ld Flatpack
CDFP4-F16
N/A
ACS138HMSR-02
25
Die
N/A
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
2
3
4
5
6
7
8
116
15
14
13
12
11
10
9
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
File Number
4461
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright Intersil Corporation 1999