ACS138MS
December 1997
Radiation Hardened
3-to-8 Line Decoder/Demultiplexer
Description
The Radiation Hardened ACS138MS is an Inverting 3-to-8
Line Decoder/Demultiplexer with three binary select inputs
(A
0
, A
1
and A
2
). 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 (E
1
, E
2
and
E
3
) 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
signi鏗乧ant power reduction and faster performance when
compared to ALSTTL types.
Speci鏗乧ations 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 Speci鏗乧ations for the ACS138 are
contained in SMD 5962-98534. A 鈥渉ot-link鈥?is provided
on our homepage with instructions for downloading.
http://www.intersil.com/data/sm/index.htm
Features
鈥?QML Quali鏗乪d Per MIL-PRF-38535 Requirements
鈥?1.25Micron Radiation Hardened SOS CMOS
鈥?Radiation Environment
- Latch-up Free Under any Conditions
- Total Dose . . . . . . . . . . . . . . . . . . . . . . 3 x 10
5
RAD(Si)
- SEU Immunity . . . . . . . . . . . <1 x 10
-10
Errors/Bit/Day
- SEU LET Threshold . . . . . . . . . . . >100MeV/(mg/cm
2
)
鈥?Input Logic Levels . . . V
IL
= (0.3V)(V
CC
), V
IH
= (0.7V)(V
CC
)
鈥?Output Current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鹵12mA
鈥?Quiescent Supply Current. . . . . . . . . . . . . . . . . . . .20碌A(chǔ)
鈥?Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
Applications
鈥?Memory Decoding
鈥?Data Routing
鈥?Code Conversion
Ordering Information
SMD PART NUMBER
5962F9853401VEC
N/A
5962F9853401VXC
N/A
N/A
INTERSIL PART NUMBER
ACS138DMSR-02
ACS138D/Sample-02
ACS138KMSR-02
ACS138K/Sample-02
ACS138HMSR-02
TEMP. RANGE (
o
C)
-55 to 125
25
-55 to 125
25
25
PACKAGE
16 Ld SBDIP
16 Ld SBDIP
16 Ld Flatpack
16 Ld Flatpack
Die
CASE OUTLINE
CDIP2-T16
CDIP2-T16
CDFP4-F16
CDFP4-F16
N/A
Pinouts
ACS138 (SBDIP)
TOP VIEW
ACS138 (FLATPACK)
TOP VIEW
A
0
1
A
1
2
A
2
3
E
1
4
E
2
5
E
3
6
Y
7
7
GND 8
16 V
CC
15 Y
0
14 Y
1
13 Y
2
12 Y
3
11 Y
4
10 Y
5
9 Y
6
A
0
A
1
A
2
E
1
E
2
E
3
Y
7
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
Y
0
Y
1
Y
2
Y
3
Y
4
Y
5
Y
6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright 漏 Intersil Corporation 1999
File Number
4461
1
INTERSIL
1
2
