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74ACT16841DGG 数据表(PDF) 3 Page - Texas Instruments

部件名 74ACT16841DGG
功能描述  20-BIT BUS-INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

74ACT16841DGG 数据表(HTML) 3 Page - Texas Instruments

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54ACT16841, 74ACT16841
20-BIT BUS-INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCAS174A – MAY 1991 – REVISED APRIL 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
To Nine Other Channels
1OE
1LE
1D1
1
56
55
2
1Q1
C1
1D
To Nine Other Channels
2OE
2LE
2D1
28
29
42
15
2Q1
C1
1D
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
–0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
–0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Note 1)
–0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC)
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC)
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND
±500 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum package power dissipation at TA = 55°C (in still air) (see Note 2): DGG package
1 W
. . . . . . . . . .
DL package
1.4 W
. . . . . . . . . . .
Storage temperature range, Tstg
–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 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.
recommended operating conditions (see Note 3)
54ACT16841
74ACT16841
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
IOH
High-level output current
–24
–24
mA
IOL
Low-level output current
24
24
mA
∆t/∆v
Input transition rise or fall rate
0
10
0
10
ns/V
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
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.


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