Datasheet

SN54BCT25244, SN74BCT25244
25-Ω OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic symbol
†
logic diagram (positive logic)
1OE
EN
24
23
1A1
22
1A2
20
1A3
19
1A4
1Y1
1
1Y2
3
1Y3
4
1Y4
6
18
2A1
17
2A2
15
2A3
14
2A4
2Y1
7
2Y2
9
2Y3
10
2Y4
12
1
1
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
2OE
EN
13
1OE
1A1
1Y1
24
23 1
1A2
1Y2
22 3
1A3
1Y3
20 4
1A4
1Y4
19 6
2OE
2A1
2Y1
13
18 7
2A2 2Y2
17 9
2A3
2Y3
15 10
2A4
2Y4
14 12
Pin numbers shown are for the DW, JT, NT, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
‡
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, V
O
–0.5 V to 5.5 V. . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V
O
–0.5 V to V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0) –30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, I
O
: SN54BCT25244 250 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT25244 376 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range: SN54BCT25244 –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT25244 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
NOTE 1: The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.