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54ACT16623, 74ACT16623
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS152A – JANUARY 1991 – REVISED APRIL 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
2B1
13
2A1
2OEAB
2OEBA
36
24
25
1B1
2
1A1
1OEAB
1OEBA
47
1
48
To Seven Other Channels
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
Input voltage range, V
I
(see Note 1)
Output voltage range, V
O
(see Note 1)
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
)
Continuous output current, I
O
(V
O
= 0 to V
CC
)
Continuous current through V
CC
or GND
Maximum power package dissipation at T
A
= 55
°
C (in still air) (see Note 2): DL package
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 voltage ratings may be exceeded if the input and output current ratings are observed.
2. The maximum package power dissipation is calculated using a junction temperature of 150
°
C and a board trace length of 750 mils.
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to V
CC
+ 0.5 V
–0.5 V to V
CC
+ 0.5 V
±
20 mA
±
50 mA
±
50 mA
±
400 mA
1.2 W
. . . . . . . . . . .
–65
°
C to 150
°
C
recommended operating conditions (see Note 3)
54ACT16623
MIN
NOM
74ACT16623
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
VI
VO
IOH
IOL
t/
v
TA
NOTES:
Supply voltage (see Note 4)
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input voltage
0
VCC
VCC
–24
0
VCC
VCC
–24
V
Output voltage
0
0
V
High-level output current
mA
Low-level output current
24
24
mA
Input transition rise or fall rate
0
10
0
10
ns/V
°
C
Operating free-air temperature
3. Unused inputs should be connected to VCC through a pullup resistor of approximately 5 k
or greater.
4. All VCC and GND pins must be connected to the proper power supply.
–55
125
–40
85
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.