September 1995
HCS374MS
Radiation Hardened Octal D-Type
Flip-Flop, Three-State, Positive Edge Triggered
Features
• 3 Micron Radiation Hardened SOS CMOS
• Total Dose 200K RAD (Si)
• SEP Effective LET No Upsets: >100 MEV-cm
• Single Event Upset (SEU) Immunity < 2 x 10
2
/mg
-9
Errors/Bit-
Day (Typ)
• Dose Rate Survivability: >1 x 10
• Dose Rate Upset >10
10
RAD (Si)/s 20ns Pulse
12
RAD (Si)/s
• Latch-Up Free Under Any Conditions
• Fanout (Over Temperature Range)
- Bus Driver Outputs - 15 LSTTL Loads
• Military Temperature Range: -55
o
C 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 ≤ 5µA at VOL, VOH
Description
The Intersil HCS374MS is a Radiation Hardened non-inverting
octal D-type, positive edge triggered flip-flop with three-stateable
outputs. The HCS374MS utilizes advanced CMOS/SOS technology. The eight flip-flops enter data into their registers on the
LOW-to-HIGH transition of the clock (CP). Data is also
transferred to the outputs during this transition. The output
enable (
of the register operation. When the output enable is high, the outputs are in the high impedance state.
The HCS374MS 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 HCS374MS is supplied in a 20 lead Ceramic flatpack
(K suffix) or a SBDIP Package (D suffix).
OE) controls the three-state outputs and is independent
Pinouts
OE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
20 LEAD CERAMIC DUAL-IN-LINE
METAL SEAL PACKAGE (SBDIP)
MIL-STD-1835 CDIP2-T20
TOP VIEW
1
OE
Q0
2
D0
3
D1
4
Q1
5
Q2
6
D2
7
8
D3
9
Q3
GND
10
20 LEAD CERAMIC METAL SEAL
FLATPACK PACKAGE (FLATPACK)
MIL-STD-1835 CDFP4-F20
TOP VIEW
120
2
3
4
5
6
7
8
9
10
VCC
20
Q7
19
D7
18
D6
17
Q6
16
Q5
15
D5
14
D4
13
12
Q4
11
CP
19
18
17
16
15
14
13
12
11
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
Ordering Information
PART NUMBER TEMPERATURE RANGE SCREENING LEVEL PACKAGE
HCS374DMSR -55oC to +125oC Intersil Class S Equivalent 20 Lead SBDIP
HCS374KMSR -55oC to +125oC Intersil Class S Equivalent 20 Lead Ceramic Flatpack
HCS374D/Sample +25oC Sample 20 Lead SBDIP
HCS374K/Sample +25oC Sample 20 Lead Ceramic Flatpack
HCS374HMSR +25oC Die Die
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
358
Spec Number
File Number 2470.2
DB NA
518770
Functional Diagram
HCS374MS
(3, 4, 7, 8, 13, 14, 17, 18)
1 OF 8
CP
11
OE
1
OE CP Dn Qn
LHH
LLL
LLX Q0
D
COMMON CONTROLS
INPUTS OUTPUTS
FF
DQ
CP
TRUTH TABLE
OE
Q
(2, 5, 6, 9, 12, 15, 16, 19)
HXX Z
H =High Level (Steady State)
L =Low Level (Steady State)
X =Immaterial
Z =High Impedance
=Transition from Low to High Level
Q0 =The level of Q before the indicated input conditions were established
359
Spec Number 518770
Specifications HCS374MS
Absolute Maximum Ratings Reliability Information
Supply Voltage (VCC). . . . . . . . . . . . . . . . . . . . . . . . .-0.5V to +7.0V
Input Voltage Range, All Inputs . . . . . . . . . . . . .-0.5V to VCC +0.5V
DC Input Current, Any One Input . . . . . . . . . . . . . . . . . . . . . . . .±10mA
DC Drain Current, Any One Output. . . . . . . . . . . . . . . . . . . . . . .±25mA
(All Voltage Reference to the VSS Terminal)
Storage Temperature Range (TSTG). . . . . . . . . . . -65oC to +150oC
Lead Temperature (Soldering 10sec). . . . . . . . . . . . . . . . . . +265oC
Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
CAUTION: As with all semiconductors, stress listed under “Absolute Maximum Ratings” may be applied to devices (one at a time) without resulting in permanent
damage. This is a stress rating only. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. The conditions listed
under “Electrical Performance Characteristics” are the only conditions recommended for satisfactory device operation.
Operating Conditions
Supply Voltage (VCC). . . . . . . . . . . . . . . . . . . . . . . . +4.5V to +5.5V
Input Rise and Fall Times at 4.5V VCC (TR, TF). . . . . . 500ns Max.
Operating Temperature Range (TA) . . . . . . . . . . . . -55oC to +125oC
TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS
Thermal Resistance θ
SBDIP Package. . . . . . . . . . . . . . . . . . . . 72oC/W 24oC/W
Ceramic Flatpack Package . . . . . . . . . . . 107oC/W 28oC/W
Maximum Package Power Dissipation at +125oC Ambient
SBDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.69W
Ceramic Flatpack Package . . . . . . . . . . . . . . . . . . . . . . . . . 0.47W
If device power exceeds package dissipation capability, provide heat
sinking or derate linearly at the following rate:
SBDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.9mW/oC
Ceramic Flatpack Package . . . . . . . . . . . . . . . . . . . . . .9.3mW/oC
Input Low Voltage (VIL). . . . . . . . . . . . . . . . . . . 0.0V to 30% of VCC
Input High Voltage (VIH). . . . . . . . . . . . . . . . . . 70% of VCC to VCC
JA
θ
JC
(NOTE 1)
PARAMETER SYMBOL
Quiescent Current ICC VCC = 5.5V,
Output Current
(Sink)
Output Current
(Source)
Output Voltage Low VOL VCC = 4.5V, VIH = 3.15V,
Output Voltage High VOH VCC = 4.5V, VIH = 3.15V,
Input Leakage
Current
IOL VCC = 4.5V, VIH = 4.5V,
IOH VCC = 4.5V, VIH = 4.5V,
IIN VCC = 5.5V, VIN = VCC or
CONDITIONS
VIN = VCC or GND
VOUT = 0.4V, VIL = 0V
VOUT = VCC -0.4V,
VIL = 0V
IOL = 50µA, VIL = 1.35V
VCC = 5.5V, VIH = 3.85V,
IOL = 50µA, VIL = 1.65V
IOH = -50µA, VIL = 1.35V
VCC = 5.5V, VIH = 3.85V,
IOH = -50µA, VIL = 1.65V
GND
GROUP
A SUB-
GROUPS TEMPERATURE
1 +25oC-40µA
2, 3 +125oC, -55oC - 750 µA
1 +25oC 7.2 - mA
2, 3 +125oC, -55oC 6.0 - mA
1 +25oC -7.2 - mA
2, 3 +125oC, -55oC -6.0 - mA
1, 2, 3 +25oC, +125oC, -55oC - 0.1 V
1, 2, 3 +25oC, +125oC, -55oC - 0.1 V
1, 2, 3 +25oC, +125oC, -55oC VCC
1, 2, 3 +25oC, +125oC, -55oC VCC
1 +25oC-±0.5 µA
2, 3 +125oC, -55oC-±5.0 µA
LIMITS
-V
-0.1
-V
-0.1
UNITSMIN MAX
Three-State Output
Leakage Current
Noise Immunity
Functional Test
NOTES:
1. All voltages reference to device GND.
2. For functional tests VO ≥4.0V is recognized as a logic “1”, and VO ≤ 0.5V is recognized as a logic “0”.
IOZ Applied Voltage = 0V or
VCC, VCC = 5.5V
FN VCC = 4.5V,
VIH = 0.70(VCC),
VIL = 0.30(VCC), (Note 2)
1 +25oC-±1 µA
2, 3 +125oC, -55oC-±50 µA
7, 8A, 8B +25oC, +125oC, -55oC---
360
Spec Number 518770