Absolute Maximum Ratings

If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Over Operating Free-Air Temperature Range (unless otherwise noted)

7V

Input Voltage CB and DB

55V

All Others

7V

Commercial

Storage Temperature Range

b

Recommended Operating Conditions

Symbol

Parameter

Conditions

Military

Commercial

Units

Min

Typ

Max

Min Typ

Max

Supply Voltage

45

5

55

45

5

55

V

High-Level Input Voltage

2

2

V

Low-Level Input Voltage

08

08

V

High-Level Output Current

ERR Or MERR

b

04

b

04

mA

DB Or CB

DP8402A DP8404

b

1

b

26

Low-Level Output Current

ERR Or MERR

48

mA

DB or CB

12

24

Pulse Duration

LEDBO Low

25

25

ns

(1) Data And Check Word Before S0

u

15

10

(2) SO High Before LEDBO

45

45

(3) LEDBO High Before The Earlier

00

of S0

Setup Time

(4) LEDBO High Before S1

0

0

ns

(5) Diagnostic Data Word Before S1

u

15

10

(6) Diagnostic Check Word Before

15

10

The Later Of S1

(7) Diagnostic Data Word Before

25

20

LEDBO

(8) Read-Mode S0 Low And S1 High

35

30

(9) Data And Check Word After

20

15

S0

Hold Time

(10) Data Word After S1

20

15

ns

(11) Check Word After The Later

20

15

of S1

(12) Diagnostic Data Word After

00

LEDBO

Correction Time (see

Figure 1 )

65

58

ns

Operating Free-Air Temperature

b

55

125

0

70

C

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

10