Datasheet

SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623
OCTAL BUS TRANSCEIVERS
SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R1 = 500 Ω
,
R2 = 500 Ω,
T
A
= MIN to MAX
†
UNIT
SN74AS623
MIN MAX
t
PLH
A
B
1 9
ns
t
PHL
A
B
1 8
ns
t
PLH
B
A
1 9
ns
t
PHL
B
A
1 8.5
ns
t
PZH
OEBA
A
2 11
ns
t
PZL
OEBA
A
2 10
ns
t
PHZ
OEBA
A
1 7.5
ns
t
PLZ
OEBA
A
1 11.5
ns
t
PZH
OEAB
B
2 11.5
ns
t
PZL
OEAB
B
2 11
ns
t
PHZ
OEAB
B
1 7
ns
t
PLZ
OEAB
B
1 9
ns
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.