SN74CBTLV16800

LOW-VOLTAGE 20-BIT FET BUS SWITCH

WITH PRECHARGED OUTPUTS

SCDS045F – DECEMBER 1997 – REVISED MAY 1999

3

POST OFFICE BOX 655303

–0.5 V to 4.6 V

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

Bias voltage range, BIASV

–0.5 V to 4.6 V

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

–0.5 V to 4.6 V

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

Continuous channel current

128 mA

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

–50 mA

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

Package thermal impedance,

89

°C/W

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

DGV package

93

°C/W

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

DL package

94

°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

2.3

3.6

V

BIASV

Bias voltage

1.3

VCC

V

VIH

High level control input voltage

VCC = 2.3 V to 2.7 V

1.7

V

VIH

High-level control input voltage

VCC = 2.7 V to 3.6 V

2

V

VIL

Low level control input voltage

VCC = 2.3 V to 2.7 V

0.7

V

VIL

Low-level control input voltage

VCC = 2.7 V to 3.6 V

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 = 3 V,

II = –18 mA

–1.2

V

II

VCC = 3.6 V,

VI = VCC or GND

±1

µA

Ioff

A port

VCC = 0,

VI or VO= 0 to 3.6 V

10

µA

IO

VCC = 3 V,

BIASV = 2.4 V,

VO= 0,

OE = VCC

0.25

mA

ICC

VCC = 3.6 V,

IO = 0,

VI = VCC or GND

10

µA

∆ICC§

Control inputs

VCC = 3.6 V,

One input at 3 V,

Other inputs at VCC or GND

300

µA

Ci

Control inputs

VI = 3 V or 0

4.5

pF

Cio(OFF)

VO = 3 V or 0,

Switch off,

BIASV = Open

6.5

pF

¶

V2 3 V

VI =0

II = 64 mA

5

9

¶

VCC = 2.3 V,

TYP at VCC = 2.5 V

VI = 0

II = 24 mA

5

9

r

¶

TYP at VCC = 2.5 V

VI = 1.7 V,

II = 15 mA

25

35

Ω

ron¶

VI =0

II = 64 mA

5

7

Ω

VCC = 3 V

VI = 0

II = 24 mA

5

7

VI = 2.4 V,

II = 15 mA

8

15

‡ All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.

§ This is the increase in supply current for each input that is at the specified voltage level rather than VCC or GND.

¶ Measured by the voltage drop between the A and 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.