SN74CBT3245CDB datasheet(3/15 Pages) TI

部件名	SN74CBT3245CDB

功能描述	8-BIT FET BUS SWITCH 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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SN74CBT3245C

8BIT FET BUS SWITCH

5V BUS SWITCH WITH 2V UNDERSHOOT PROTECTION

SCDS131A − SEPTEMBER 2003 − REVISED OCTOBER 2003

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

simplified schematic, each FET switch (SW)

A

EN†

B

† EN is the internal enable signal applied to the switch.

Undershoot

Protection Circuit

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

Supply voltage range, VCC

−0.5 V to 7 V

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

Control input voltage range, VIN (see Notes 1 and 2)

−0.5 V to 7 V

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

Switch I/O voltage range, VI/O (see Notes 1, 2, and 3)

−0.5 V to 7 V

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

Control input clamp current, IIK (VIN < 0)

−50 mA

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

I/O port clamp current, II/OK (VI/O < 0)

−50 mA

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

ON-state switch current, II/O (see Note 4)

±128 mA

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

Continuous current through VCC or GND terminals

±100 mA

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

Package thermal impedance,

θJA (see Note 5): DB package

70

°C/W

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

(see Note 5): DBQ package

68

°C/W

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

(see Note 5): DGV package

92

°C/W

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

(see Note 5): DW package

58

°C/W

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

(see Note 5): PW package

83

°C/W

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

(see Note 6): RGY package

37

°C/W

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

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.

NOTES:

1. All voltages are with respect to ground unless otherwise specified.

2. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

3. VI and VO are used to denote specific conditions for VI/O.

4. II and IO are used to denote specific conditions for II/O.

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

6. The package thermal impedance is calculated in accordance with JESD 51-5.

recommended operating conditions (see Note 7)

MIN

MAX

UNIT

VCC

Supply voltage

4

5.5

V

VIH

High-level control input voltage

2

5.5

V

VIL

Low-level control input voltage

0

0.8

V

VI/O

Data input/output voltage

0

5.5

V

TA

Operating free-air temperature

−40

85

°C

NOTE 7: 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.

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SN74CBT3245CDB 数据表(PDF) 3 Page - Texas Instruments

SN74CBT3245CDB 数据表(HTML) 3 Page - Texas Instruments

类似零件编号 - SN74CBT3245CDB

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SN74CBT3245CDB 数据表(PDF) 3 Page - Texas Instruments

SN74CBT3245CDB 数据表(HTML) 3 Page - Texas Instruments

类似零件编号 - SN74CBT3245CDB

类似说明 - SN74CBT3245CDB

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