Datasheet
SN54LVTH240, SN74LVTH240
3.3-V ABT OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS679K − DECEMBER 1996 − REVISED SEPTEMBER 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
1
218
1Y1
1OE
1A1
416
1Y2
1A2
614
1Y3
1A3
812
1Y4
1A4
19
11 9
2Y1
2OE
2A1
13 7
2Y2
2A2
15 5
2Y3
2A3
17 3
2Y4
2A4
Pin numbers shown are for the DB, DW, FK, J, NS, PW, RGY, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
−0.5 V to 4.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 1) −0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high-impedance
or power-off state, V
O
(see Note 1) −0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V
O
(see Note 1) −0.5 V to V
CC
+ 0.5 V. . . . . . . . . . . . .
Current into any output in the low state, I
O
: SN54LVTH240 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74LVTH240 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the high state, I
O
(see Note 2): SN54LVTH240 48 mA. . . . . . . . . . . . . . . . . . . . . . .
SN74LVTH240 64 mA. . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0) −50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0) −50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 3): DB package 70°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): DW package 58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): GQN/ZQN package 78°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): NS package 60°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): PW package 83°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 4): RGY package 37°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−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. This current flows only when the output is in the high state and V
O
> V
CC
.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
4. The package thermal impedance is calculated in accordance with JESD 51-5.