Datasheet

SN54ALS652, SN54ALS653, SN54AS651, SN54AS652
SN74ALS651A, SN74ALS652A, SN74ALS653, SN74ALS654, SN74AS651, SN74AS652
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SDAS066G – DECEMBER 1983 – REVISED DECEMBER 2000
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 680 Ω (A outputs),
R1 = R2 = 500 Ω (B outputs),
T
A
= MIN to MAX
†
UNIT
SN74ALS654
MIN MAX
f
max
35 MHz
t
PLH
CLKBA
A
16 64
ns
t
PHL
CLKBA
A
6 22
ns
t
PLH
CLKAB
B
10 30
ns
t
PHL
CLKAB
B
5 17
ns
t
PLH
A
B
5 18
ns
t
PHL
A
B
2 15
ns
t
PLH
B
A
12 56
ns
t
PHL
B
A
2 21
ns
t
PLH
SBA
‡
A
19 62
ns
t
PHL
(with B low)
A
5 25
ns
t
PLH
SBA
‡
A
19 62
ns
t
PHL
(with B high)
A
5 25
ns
t
PLH
SAB
‡
B
15 35
ns
t
PHL
(with A low)
B
6 22
ns
t
PLH
SAB
‡
B
8 25
ns
t
PHL
(with A high)
B
6 22
ns
t
PLH
OEBA
A
6 30
ns
t
PHL
OEBA
A
6 24
ns
t
PZH
OEAB
B
6 22
ns
t
PZL
OEAB
B
6 22
ns
t
PHZ
OEAB
B
1 14
ns
t
PLZ
OEAB
B
2 16
ns
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
These parameters are measured with the internal output state of the storage register opposite that of the bus input.