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參數(shù)資料
| 型號： | SN54HCT623 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs(八總線收發(fā)器(三態(tài)輸出)) |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出（八總線收發(fā)器（三態(tài)輸出）） |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 148K |
| 代理商： | SN54HCT623 |
SN54HCT623, SN74HCT623
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS016B – MARCH 1984 – REVISED MAY 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
2
EN1
19
EN2
1
OEAB
2
A1
3
A2
B1
18
4
A3
5
6
A4
A5
7
A6
8
9
A7
A8
B2
17
B3
16
B5
B6
14
13
B4
15
B8
11
B7
12
OEBA
1
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
A1
B1
OEBA
OEAB
To Seven Other Transceivers
19
1
2
18
absolute maximum ratings over operating free-air temperature range
Supply voltage range, V
CC
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
) (see Note 1)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) (see Note 1)
Continuous output current, I
O
(V
O
= 0 to V
CC
)
Continuous current through V
CC
or GND
Package thermal impedance,
θ
JA
(see Note 2): DW package
–0.5 V to 7 V
±
20 mA
±
20 mA
±
35 mA
±
70 mA
97
°
C/W
67
°
C/W
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N 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 package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
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