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參數(shù)資料
| 型號： | SN54ABT845 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Bus Interface D-Type Latches With 3-State Outputs(八總線接口D鎖存器(三態(tài)輸出)) |
| 中文描述： | 八路總線接口D類鎖存器與三態(tài)輸出（八總線接口?鎖存器（三態(tài)輸出）） |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 117K |
| 代理商： | SN54ABT845 |
SN54ABT845, SN74ABT845
OCTAL BUS INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS169 – FEBRUARY 1991–REVISED OCTOBER 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3
logic diagram (positive logic)
To 7 Other Channels
2
1D
OE1
PRE
3
1
14
11
13
1Q
22
CLR
LE
S2
C1
1D
R
OE2
2
OE3
23
Pin numbers shown are for DW, JT, and NT packages.
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)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state or power-off state, V
O
Current into any output in the low state, I
O
: SN54ABT845
SN74ABT845
Input clamp current, I
IK
(V
I
< 0)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum power dissipation at T
A
= 55
°
C (in still air): DW package
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5 V to 7 V
–0.5 V to 7 V
–0.5 V to 5.5 V
. . . . . . . . . . . . .
96 mA
128 mA
–18 mA
–50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 W
1.3 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NT package
–65
°
C to 150
°
C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. This is a stress rating only, and
functional operation of the device at these or any other conditions beyond those indicated in the “recommended operating conditions” section of
this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
P
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