參數(shù)資料
型號(hào): SN74AC244DB
廠商: Texas Instruments, Inc.
英文描述: Low-Voltage CMOS Quad 2-Input NAND Gate; Package: TSSOP-14; No of Pins: 14; Container: Rail; Qty per Container: 96
中文描述: 八路緩沖器/ 3司機(jī)態(tài)輸出
文件頁(yè)數(shù): 2/6頁(yè)
文件大?。?/td> 95K
代理商: SN74AC244DB
SN54AC244, SN74AC244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS514C – JUNE 1995 – REVISED SEPTEMBER 1996
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
2
1A1
4
1A2
6
1A3
8
1A4
EN
1
1Y1
18
1Y2
16
1Y3
14
1Y4
12
11
2A1
13
2A2
15
2A3
17
2A4
EN
19
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1OE
2OE
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive Logic)
1
2
4
6
8
12
14
16
18
1A1
1A2
1A3
1A4
1Y1
1Y2
1Y3
1Y4
1OE
19
11
13
15
17
3
5
7
9
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
2OE
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 dissipation at T
A
= 55
°
C (in still air) (see Note 2): DB package
–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
±
20 mA
±
50 mA
±
200 mA
0.6 W
1.6 W
1.3 W
0.7 W
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
DW package
N package
PW 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,
except for the N package, which has a trace length of zero.
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SN54AC244FK OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
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SN74AC244DW 制造商:Texas Instruments 功能描述:BUFFER LOGIC IC