SN54AS286, SN74AS286

9-BIT PARITY GENERATORS/CHECKERS

WITH BUS-DRIVER PARITY I/O PORT

SDAS050B – DECEMBER 1983 – REVISED DECEMBER 1994

4

POST OFFICE BOX 655303

switching characteristics (see Figure 3)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

R1 = 500

R2 = 500

TA = MIN to MAX†

UNIT

SN54AS286

SN74AS286

MIN

MAX

MIN

MAX

tPLH

Any A

I

PARITY I/O

3

17

3

15

ns

tPHL

Any A – I

PARITY I/O

3

15

3

14

ns

tPLH

Any A

I

PARITY ERROR

3

20

3

16.5

ns

tPHL

Any A – I

PARITY ERROR

3

18

3

16.5

ns

tPLH

PARITY I/O

PARITY ERROR

3

10

3

9

ns

tPHL

PARITY I/O

PARITY ERROR

3

10

3

9

ns

tPZH

XMIT

PARITY I/O

3

14

3

13

ns

tPZL

XMIT

PARITY I/O

3

17

3

16

ns

tPHZ

XMIT

PARITY I/O

3

13

3

11.5

ns

tPLZ

XMIT

PARITY I/O

3

11

3

10

ns

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.