Datasheet
SN74ALVC7804
512 × 18
FIRST-IN, FIRST-OUT MEMORY
SCAS432 – JANUARY 1995
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS
†
MIN TYP
‡
MAX UNIT
V
OH
Flags Q out
p
uts
V
CC
= MIN to MAX, I
OH
= – 100 µA V
CC
–0.2
V
V
OH
Flags
,
Q
o
u
tp
u
ts
V
CC
= 3 V, I
OH
= – 8 mA 2.4
V
Flags, Q outputs V
CC
= MIN to MAX, I
OL
= 100 µA 0.2
V
OL
Flags V
CC
= 3 V, I
OL
= 8 mA 0.4
V
Q outputs V
CC
= 3 V, I
OL
= 16 mA 0.55
I
I
V
CC
= 3.6 V, V
I
=V
CC
or GND ±5 µA
I
OZ
V
CC
= 3.6 V, V
O
=V
CC
or GND ±10 µA
I
CC
V
CC
= 3.6 V, V
I
= V
CC
or GND and I
O
= 0 40 µA
∆I
CC
§
V
CC
= 3.6 V,
Other inputs at V
CC
or GND
One input at V
CC
–0.6 V,
500 µA
C
i
V
CC
= 3.3 V, V
I
= V
CC
or GND 3 pF
C
o
V
CC
= 3.3 V, V
O
= V
CC
or GND 6 pF
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.
§
This is the supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or V
CC
.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 5)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
′ALVC7804-25
V
CC
= 3.3 V 0.3 V
′ALVC7804-40
V
CC
= 3.3 V 0.3 V
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
f
max
LDCK or UNCK 40 25 MHz
t
pd
LDCK↑
Any Q
9 22 9 24
ns
t
pd
UNCK↑
An
y
Q
6 18 6 20
ns
t
PLH
LDCK↑
6 17 6 19
t
PHL
UNCK↑
EMPTY
6 17 6 19
ns
t
PHL
RESET low
4 18 4 20
t
PHL
LDCK↑
6 17 6 19
t
PLH
UNCK↑
FULL
6 17 6 19
ns
t
PLH
RESET low
4 20 4 22
t
pd
LDCK↑
7 20 7 22
t
pd
UNCK↑
AF/AE
7 20 7 22
ns
t
PLH
RESET low
2 12 2 14
t
PLH
LDCK↑
5 20 5 22
t
PHL
UNCK↑
HF
7 20 7 22
ns
t
PHL
RESET low
3 14 3 16
t
en
OE
Any Q
2 10 2 11
ns
t
dis
OE
An
y
Q
2 11 2 12
ns
operating characteristics, V
CC
= 3.3 V, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per FIFO channel Outputs enabled C
L
= 50 pF, f = 5 MHz 53 pF