SN74CBT1G125

SINGLE FET BUS SWITCH

SCDS046C – FEBRUARY 1998 – REVISED OCTOBER 1998

2

POST OFFICE BOX 655303

–0.5 V to 7 V

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

–0.5 V to 7 V

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

Continuous channel current

128 mA

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

–50 mA

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

Package thermal impedance,

347

°C/W

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

DCK package

389

°C/W

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

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

recommended operating conditions (see Note 3)

MIN

MAX

UNIT

VCC

Supply voltage

4

5.5

V

VIH

High-level control input voltage

2

V

VIL

Low-level control input voltage

0.8

V

TA

Operating free-air temperature

–40

85

°C

NOTE 3: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP‡

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

V

II

VCC = 5.5 V,

VI = 5.5 V or GND

±1

µA

ICC

VCC = 5.5 V,

IO = 0,

VI = VCC or GND

1

µA

Ci

Control input

VI = 3 V or 0

3

pF

Cio(OFF)

VO = 3 V or 0,

OE = VCC

4

pF

§

VCC = 4 V,

TYP at VCC = 4 V,

VI = 2.4 V,

II = 15 mA

14

20

r

§

VI =0

II = 64 mA

5

7

Ω

ron§

VCC = 4.5 V

VI = 0

II = 30 mA

5

7

Ω

VI = 2.4 V,

II = 15 mA

10

15

‡ All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.

§ Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined

by the lower of the voltages of the two (A or B) terminals.

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4 V

VCC = 5 V

± 0.5 V

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

tpd¶

A or B

B or A

0.35

0.25

ns

ten

OE

A or B

5.5

1.6

4.9

ns

tdis

OE

A or B

4.5

1

4.2

ns

¶ The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when

driven by an ideal voltage source (zero output impedance).