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DP8402A Datasheet, PDF (10/18 Pages) National Semiconductor (TI) – DP8402A/DP8403/DP8404/DP8405 32-Bit Parallel Error Detection and Correction Circuits (EDACs)
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Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Over Operating Free-Air Temperature Range (unless otherwise noted)
Supply Voltage VCC (See Note 1)
Input Voltage CB and DB
All Others
7V
5 5V
7V
Operating Free-Air Temperature Military b55 C to a125 C
Commercial 0 to a70 C
Storage Temperature Range
b65 C to a150 C
Recommended Operating Conditions
Symbol
Parameter
Conditions
Military
Commercial
Units
Min Typ Max Min Typ Max
VCC
Supply Voltage
VIH
High-Level Input Voltage
VIL
Low-Level Input Voltage
IOH
ERR Or MERR
High-Level Output Current
DB Or CB DP8402A DP8404
45 5 55 45 5 55 V
2
2
V
08
08 V
b0 4
b1
b0 4 mA
b2 6
ERR Or MERR
IOL
Low-Level Output Current
DB or CB
4
8
mA
12
24
tw
Pulse Duration
LEDBO Low
25
25
ns
u (1) Data And Check Word Before S0
15
10
(S1 e H)
u (2) SO High Before LEDBO (S1 e H)
45
45
(3) LEDBO High Before The Earlier
of S0v or S1v
0
0
tsu
Setup Time
u (4) LEDBO High Before S1 (S0 e H)
0
0
ns
u (5) Diagnostic Data Word Before S1
(S0 e H)
15
10
(6) Diagnostic Check Word Before
v u The Later Of S1 or S0
15
10
(7) Diagnostic Data Word Before
u LEDBO (S1 e L and S0 e H)
25
20
(8) Read-Mode S0 Low And S1 High
35
30
(9) Data And Check Word After
u S0 (S1 e H)
20
15
th
Hold Time
u (10) Data Word After S1 (S0 e H)
20
15
ns
(11) Check Word After The Later
of S1v or S0u
20
15
(12) Diagnostic Data Word After
u LEDBO (S1 e L And S0 e H)
0
0
tcorr
Correction Time (see Figure 1 )
65
58
ns
TA
Operating Free-Air Temperature
b55
125 0
70
C
This specification may be interpreted as the maximum delay to guarantee valid corrected data at the output and includes the tsu setup delay
These times ensure that corrected data is saved in the output data latch
These times ensure that the diagnostic data word is saved in the output data latch
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