SN74CBTK32245

32BIT FET BUS SWITCH

WITH ACTIVECLAMP UNDERSHOOT PROTECTION CIRCUIT

SCDS106E − APRIL 2000 − REVISED SEPTEMBER 2003

4

POST OFFICE BOX 655303

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 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

VIKU

VCC = 5.5 V,

0 mA

≥ II ≥ −50 mA,

OE = 5.5 V

−2

V

II

VCC = 5.5 V,

VI = 5.5 V or GND

±5

µA

Ioff

VCC = 0,

VI or VO = 0 to 5.5 V

20

µA

ICC

VCC = 5.5 V,

VI = VCC or GND,

IO = 0

6

µA

∆ICC‡ Control inputs VCC = 5.5 V,

One input at 3.4 V,

Other inputs at VCC or GND

3.5

mA

Ci

Control inputs

VI = 3 V or 0

3.5

pF

Cio(OFF)

VO = 3 V or 0,

OE = VCC

5.5

pF

VCC = 4 V,

TYP at VCC = 4 V

VI = 2.4 V,

II = 15 mA

14

20

ron§

VI = 0

II = 64 mA

5

7

Ω

ron§

VCC = 4.5 V

VI = 0

II = 30 mA

5

7

Ω

VCC = 4.5 V

VI = 2.4 V,

II = 15 mA

8

12

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

‡ This is the increase in supply current for each input that is at the specified TTL-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.

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

otherwise noted) (see Figure 3)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4 V

VCC = 5 V

± 0.5 V

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

UNIT

tpd¶

A or B

B or A

0.35

0.25

ns

ten

OE

A or B

7.4

1.6

4.9

ns

tdis

OE

A or B

7.4

4.2

7.5

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).