Datasheet

SN74ALB16244
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCBS647C – AUGUST 1995 – REVISED JULY 1997
8–6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN MAX UNIT
V
CC
Supply voltage 3 3.6 V
I
OH
†
High-level output current –25 mA
I
OL
†
Low-level output current 25 mA
∆t/∆v Input transition rise or fall rate Outputs enabled 5 ns/V
T
A
Operating free-air temperature –40 85 °C
†
Refer to Figures 1 and 2 for typical I/O ranges.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
‡
MAX UNIT
I
I
= 18 mA 3.6 V
CC
–1.2
V
IK
Data inputs V
CC
= 3 V
I
I
= –18 mA –0.9 –1.2
V
Control inputs V
CC
= 3.6 V, V
I
= V
CC
or GND ±10 µA
OE low 0.4 0.6 mA
I
I
V
I
= V
CC
OE high 25 µA
Data inputs V
CC
= 3.6 V
OE low –0.8 –1 mA
V
I
= 0
OE high –60 µA
I
OZH
V
CC
= 3.6 V, V
O
= 3 V 0.6 20 µA
I
OZL
V
CC
= 3.6 V, V
O
= 0.5 V –0.1 –50 µA
I
CC
/buffer V
CC
= 3.6 V, I
O
= 0, V
I
= V
CC
or GND 3.7 5.6 mA
I
CCZ
V
CC
= 3.6 V, Control inputs = V
CC
or GND 0.8 mA
∆I
CC
§
V
CC
= 3 V to 3.6 V, One input at V
CC
–0.6 V,
Other inputs at V
CC
or GND
600 µA
C
i
V
I
= 3 V or 0 4.5 pF
C
o
V
O
= 3 V or 0 5.5 pF
‡
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.
§
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 3)
FROM TO
V
CC
= 3.3 V ± 0.3 V
PARAMETER
(INPUT) (OUTPUT)
MIN TYP
‡
MAX
UNIT
t
pd
A
Y 0.6 1.3 2 ns
t
en
OE
Y 1.3 2.5 4.7 ns
t
dis
OE
Y 1.8 2.8 4.2 ns
‡
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.