Datasheet
SN74ALB16245
3.3-V ALB 16-BIT TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS678B – SEPTEMBER 1996 – REVISED JULY 1997
8–11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
–0.5 V to 4.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
: Except I/O ports (see Note 1) –0.5 V to 4.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports (see Notes 1 and 2) –0.5 V to V
CC
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
O
(see Notes 1 and 2) –0.5 V to V
CC
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, I
O
(V
O
= 0 to V
CC
) ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through each V
CC
or GND ±100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 3): DGG package 89°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package 94°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51.
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 3.7 V
CC
+1.2
V
IK
A or B ports 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
A or B ports V
CC
= 3.6 V
OE low –0.7 –1 mA
V
I
= 0
OE high –60 µA
I
OZH
V
CC
= 3.6 V, V
O
= 3 V 0.7 20 µA
I
OZL
V
CC
= 3.6 V, V
O
= 0.5 V –0.2 –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 3.5 pF
C
io
V
O
= 3 V or 0 7.5 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.