CY54FCT138T, CY74FCT138T

1-OF-8 DECODERS

SCCS013B – MAY 1994 – REVISED OCTOBER 2001

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

logic diagram (positive logic)

E2

E1

E3

A2

A1

A0

O0

1

2

3

6

4

5

15

14

13

12

11

10

9

7

Pin numbers shown are for the D, Q, and SO packages.

O1

O2

O3

O4

O5

O6

O7

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range to ground potential

–0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC input voltage range

–0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC output voltage range

–0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC output current (maximum sink current/pin)

120 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Note 1): Q package

90

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SO package

57

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ambient temperature range with power applied, TA

–65

°C to 135°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–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 package thermal impedance is calculated in accordance with JESD 51-7.