CY54FCT377T, CY74FCT377T

8-BIT REGISTERS

SCCS023A – MAY 1994 – REVISED OCTOBER 2001

6

POST OFFICE BOX 655303

timing requirements over recommended operating free-air temperature range (unless otherwise

noted) (see Figure 1)

CY54FCT377AT

CY54FCT377CT

CY74FCT377T

CY74FCT377AT

CY74FCT377CT

UNIT

MIN

MAX

MIN

MAX

tw

Pulse duration, CP high or low†

7

6

ns

t

Setup time high or low

Data before CP

↑

2

2

ns

tsu

Setup time, high or low

CE before CP

↑

3.5

3.5

ns

th

Hold time high or low

Data after CP

↑

1.5

1.5

ns

th

Hold time, high or low

CE after CP

↑

1.5

1.5

ns

† With one data channel switching, tw(L) = tw(H) = 4 ns and tr = tf = 1 ns.

switching characteristics over operating free-air temperature range (see Figure 1)

PARAMETER

FROM

TO

CY54FCT377AT

CY54FCT377CT

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

UNIT

tPLH

CP

O

2

8.3

2

5.5

ns

tPHL

CP

O

2

8.3

2

5.5

ns

switching characteristics over operating free-air temperature range (see Figure 1)

PARAMETER

FROM

TO

CY74FCT377T

CY74FCT377AT

CY74FCT377CT

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tPLH

CP

O

2

13

2

7.2

2

5.2

ns

tPHL

CP

O

2

13

2

7.2

2

5.2

ns