HCTS190MS
Radiation Hardened
Synchronous 4-Bit Up/Down Counter
September 1995
Features
Description
• 3 Micron Radiation Hardened CMOS SOS
The Intersil HCTS190MS is an asynchronously presettable
BCD Decade synchronous counter. Presetting the counter to
the number on the preset data inputs (P0 - P3) is accom-
plished by a low on the parallel load input (PL). Counting
occurs when (PL) is high, Count Enable (CE) is low and the
Up/Down (U/D) input is either low for up-counting or high for
down-counting. The counter is incremented or decremented
synchronously with the low-to-high transition of the clock.
• 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
When an overflow or underflow of the counter occurs, the
Terminal Count output (TC), which is low during counting,
goes high and remains high for one clock cycle. This output
can be used for look-ahead carry in high speed cascading.
The TC output also initiates the Ripple Clock output (RC)
which, normally high, goes low and remains low for the low-
level portion of the clock pulse. These counter can be cas-
caded using the Ripple Carry output.
• 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
If the decade counter is preset to an illegal state or assumes
an illegal state when power is applied, it will return to the
normal sequence in one or two counts
• LSTTL Input Compatibility
- VIL = 0.8V Max
The HCTS190MS utilizes advanced CMOS/SOS technology
to achieve high-speed operation. This device is a member of
radiation hardened, high-speed, CMOS/SOS Logic Family.
- VIH = VCC/2 Min
• Input Current Levels Ii ≤ 5µA @ VOL, VOH
The HCTS190MS is supplied in a 16 lead Ceramic flatpack
(K suffix) or a SBDIP Package (D suffix).
Ordering Information
PART NUMBER
HCTS190DMSR
TEMPERATURE RANGE
SCREENING LEVEL
Intersil Class S Equivalent
Intersil Class S Equivalent
Sample
PACKAGE
16 Lead SBDIP
o
o
-55 C to +125 C
o
o
HCTS190KMSR
-55 C to +125 C
16 Lead Ceramic Flatpack
16 Lead SBDIP
o
HCTS190D/Sample
HCTS190K/Sample
HCTS190HMSR
+25 C
o
+25 C
Sample
16 Lead Ceramic Flatpack
Die
o
+25 C
Die
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
VCC
P0
P1
Q1
16
15
14
13
1
2
3
4
5
6
7
8
VCC
P0
P1
Q1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Q0
CP
Q0
CP
RC
TC
PL
CE
RC
CE
U/D
Q2
12 TC
PL
U/D
Q2
11
10 P2
P3
P2
Q3
Q3
P3
GND
GND
9
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Spec Number 518614
File Number 2474.2
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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