参数资料
型号: SN74ABT244DBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: ABT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封装: PLASTIC, SSOP-20
文件页数: 2/7页
文件大小: 104K
代理商: SN74ABT244DBR
SN54ABT244, SN74ABT244
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS099E – JANUARY 1991 – REVISED JULY 1994
2–2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
logic diagram (positive logic)
1
2
4
6
8
19
11
13
15
17
3
5
7
9
12
14
16
18
1A1
1A2
1A3
1A4
1Y1
2A1
2A2
2A3
2A4
2Y1
1Y2
1Y3
1Y4
2Y2
2Y3
2Y4
2OE
1OE
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.
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 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to any output in the high state or power-off state, VO
– 0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: SN54ABT244
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT244
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0)
–18 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0)
– 50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum power dissipation at TA = 55°C (in still air) (see Note 2): DB package
0.6 W
. . . . . . . . . . . . . . . . . . . .
DW package
1.6 W
. . . . . . . . . . . . . . . . . . .
N package
1.3 W
. . . . . . . . . . . . . . . . . . . . .
PW package
0.7 W
. . . . . . . . . . . . . . . . . . .
Storage temperature range
– 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 negative-voltage ratings may be exceeded if the input and output clamp-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. For more information, refer to the
Package Thermal Considerations
application note in the 1994
ABT Advanced BiCMOS Technology Data Book, literature number SCBD002B.
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相关代理商/技术参数
参数描述
SN74ABT244DW 制造商:Texas Instruments 功能描述:
SN74ABT244DWR 制造商:TI 功能描述:74ABT244
SN74ABT244N 制造商:Rochester Electronics LLC 功能描述:- Bulk
SN74ABT245 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74ABT245B 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS WITH 3 STATE OUTPUTS