SN74CB3T1G125

SINGLE FET BUS SWITCH

2.5V/3.3V LOW VOLTAGE BUS SWITCH WITH 5V TOLERANT LEVEL SHIFTER

SCDS150 − OCTOBER 2003

2

POST OFFICE BOX 655303

description/ordering information (continued)

VCC

≈VCC

5.5 V

0 V

NOTE A: If the input high voltage (VIH) level is greater than or equal to VCC − 1 V, and less than or equal to 5.5 V, then the output high voltage

(VOH) level will be equal to approximately the VCC voltage level.

Input Voltages

Output Voltages

0 V

≈VCC − 1 V

≈VCC − 1 V

VCC

IN

OUT

CB3T

Figure 1. Typical DC Voltage-Translation Characteristics

damaging current will not backflow through the device when it is powered down. The device has isolation during

power off.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

FUNCTION TABLE

INPUT

INPUT/OUTPUT

FUNCTION

INPUT

OE

INPUT/OUTPUT

A

FUNCTION

L

B

A port = B port

H

Z

Disconnect

logic diagram (positive logic)

OE

B

A

SW

2

1

4