M54HC280
RAD-HARD 9 BIT PARITY GENERATOR
s
s
s
s
s
s
s
s
s
s
s
HIGH SPEED:
t
PD
= 22ns (TYP.) at V
CC
= 6V
LOW POWER DISSIPATION:
I
CC
=4µA(MAX.) at T
A
=25°C
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% V
CC
(MIN.)
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 4mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
≅
t
PHL
WIDE OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
54 SERIES 280
SPACE GRADE-1: ESA SCC QUALIFIED
50 krad QUALIFIED, 100 krad AVAILABLE ON
REQUEST
NO SEL UNDER HIGH LET HEAVY IONS
IRRADIATION
DEVICE FULLY COMPLIANT WITH
SCC-9208-003
DILC-14
FPC-14
ORDER CODES
PACKAGE
DILC
FPC
FM
M54HC280D
M54HC280K
DESCRIPTION
The M54HC280 is an high speed CMOS 9-BIT
PARITY GENERATOR fabricated with silicon gate
C
2
MOS technology.
PIN CONNECTION
O
so
b
te
le
r
P
uc
od
s)
t(
bs
-O
It is composed of nine data inputs (A to I) and odd/
even parity outputs (ΣODD and
ΣEVEN).
The nine
data inputs control the output conditions. When
the number of high level input is odd,
ΣODD
output is kept high and
ΣEVEN
output low.
Conversely, when the output is even,
ΣEVEN
output is kept high and
ΣODD
low.
The IC generates either odd or even parity making
it flexible application. The word-length capability is
easily expanded by cascading.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
et
l
o
P
e
od
r
s)
t(
uc
EM
M54HC280D1
M54HC280K1
April 2004
1/9
M54HC280
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6ns)
Test Condition
Symbol
Parameter
V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
T
A
= 25°C
Min.
Typ.
30
8
7
80
26
22
Max.
75
15
13
200
40
34
Value
-40 to 85°C
Min.
Max.
95
19
16
250
50
43
-55 to 125°C
Min.
Max.
110
22
19
290
58
49
ns
Unit
t
TLH
t
THL
Output Transition
Time
t
PLH
t
PHL
Propagation Delay
Time (Input to
ΣEVEN,ΣODD)
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
V
CC
(V)
5.0
5.0
T
A
= 25°C
Min.
Typ.
5
61
Max.
10
Value
-40 to 85°C
Min.
Max.
10
-55 to 125°C
Min.
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance (note
1)
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
TEST CIRCUIT
O
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
T
= Z
OUT
of pulse generator (typically 50Ω)
so
b
te
le
r
P
uc
od
s)
t(
bs
-O
et
l
o
P
e
od
r
ct
u
Max.
10
s)
(
Unit
pF
pF
5/9