HCTS374MS
Radiation Hardened Octal D-Type
Flip-Flop, Three-State, Positive Edge Triggered
August 1995
Features
Pinouts
20 LEAD CERAMIC DUAL-IN-LINE
METAL SEAL PACKAGE (SBDIP)
MIL-STD-1835 CDIP2-T20
TOP VIEW
• 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
1
2
3
4
5
6
7
8
9
VCC
Q7
OE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
20
19
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
• Fanout (Over Temperature Range)
- Bus Driver Outputs - 15 LSTTL Loads
• Military Temperature Range: -55oC to +125oC
• Significant Power Reduction Compared to LSTTL ICs
• DC Operating Voltage Range: 4.5V to 5.5V
12
Q4
GND 10
11 CP
• LSTTL Input Compatibility
- VIL = 0.8V Max
- VIH = VCC/2 Min
• Input Current Levels Ii ≤ 5µA at VOL, VOH
20 LEAD CERAMIC METAL SEAL
FLATPACK PACKAGE (FLATPACK)
MIL-STD-1835 CDFP4-F20
TOP VIEW
Description
The Intersil HCTS374MS is a Radiation Hardened non-inverting
octal D-type, positive edge triggered flip-flop with three-stateable
outputs. The eight flip-flops enter data into their registers on the
LOW-to-HIGH transition of the clock (CP). Data is also trans-
ferred to the outputs during this transition. The output enable
(OE) controls the three-state outputs and is independent of the
register operation. When the output enable is high, the outputs
are in the high impedance state.
OE
Q0
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
D0
D1
Q1
Q2
D2
D3
The HCTS374MS utilizes advanced CMOS/SOS technology to
achieve high-speed operation. This device is a member of
radiation hardened, high-speed, CMOS/SOS Logic Family.
Q3
GND
The HCTS374MS is supplied in a 20 lead Ceramic flatpack (K
suffix) or a SBDIP Package (D suffix).
Ordering Information
PART NUMBER
HCTS374DMSR
TEMPERATURE RANGE
SCREENING LEVEL
Intersil Class S Equivalent
Intersil Class S Equivalent
Sample
PACKAGE
o
o
-55 C to +125 C
20 Lead SBDIP
o
o
HCTS374KMSR
-55 C to +125 C
20 Lead Ceramic Flatpack
20 Lead SBDIP
o
HCTS374D/Sample
HCTS374K/Sample
HCTS374HMSR
+25 C
o
+25 C
Sample
20 Lead Ceramic Flatpack
Die
o
+25 C
Die
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Spec Number 518635
File Number 2134.2
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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