SN74ALS819, SN74ALS29818

8BIT DIAGNOSTICS/PIPELINE REGISTERS

SDAS105A − JANUARY 1986 − REVISED OCTOBER 1986

POST OFFICE BOX 655303

POST OFFICE BOX 1443

8

absolute maximum ratings over operating free-air temperature range

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, any input or I/O port

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

recommended operating conditions

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.75

5

5.25

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

IOH

High-level output current

Y0 − Y7, PE

−3

mA

IOH

High-level output current

All others

−1

mA

IOL

Low-level output current

Y0 − Y7, PE

24

mA

IOL

Low-level output current

All others

8

mA

tw

Pulse duration

SRCLK high or low

25

ns

tw

Pulse duration

ORCLK high or low

15

ns

Y0 − Y7 (’ALS29818)†

5

tsu

Setup time before SRCLK

↑

MODE

12

ns

tsu

Setup time before SRCLK

↑

SDI

10

ns

ORCLK (’ALS29818)†

40

DQ0 − DQ7

8

tsu

Setup time before ORCLK

↑

MODE (’ALS29818)†

15

ns

tsu

Setup time before ORCLK

↑

SRCLK‡

5

ns

Y0 − Y7 (’ALS29818)†

5

th

Hold time after RCLK

↑

MODE

2

ns

th

Hold time after RCLK

↑

SDI

0

ns

DQ0 − DQ7

2

th

Hold time after ORCLK

↑

MODE (’ALS29818) †

0

ns

th

Hold time after ORCLK

↑

SDI (’ALS819)

ns

TA

Operating free-air temperature

0

70

°C

† This setup time ensures that the shadow register will see stable data from the output register.

‡ This setup time ensures that the output register will see stable data from the shadow register.