INDUSTRIALTEMPERATURERANGE

IDT74CBTLV3244

LOW-VOLTAGEOCTALBUSSWITCH

1

DECEMBER 2014

INDUSTRIAL TEMPERATURE RANGE

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© 2014 Integrated Device Technology, Inc.

DSC-5393/6

FUNCTIONAL BLOCK DIAGRAM

FEATURES:

• Pin-out compatible with standard '244 Logic products

•5

Ω

Ω

Ω

Ω

Ω A/B bi-directional switch

• Isolation under power-off conditions

• Over-voltage tolerant

• Latch-up performance exceeds 100mA

• ESD > 2000V per MIL-STD-883, Method 3015;

> 200V using machine model (C = 200pF, R = 0)

• Available in QSOP and TSSOP packages

APPLICATIONS:

• 3.3V High Speed Bus Switching and Bus Isolation

SIMPLIFIED SCHEMATIC, EACH SWITCH

IDT74CBTLV3244

LOW-VOLTAGE OCTAL

BUS SWITCH

DESCRIPTION:

The octal bus switch has standard 244 pinouts. The CBTLV3244 is

designed for asynchronous communication between data buses. Sets of

four switches are controlled by one output Enable (OE). When OE is low,

the set of four bus switches is on and port A is connected to port B. When

OE is high, the set of four bus switches is off and a high impedance exists

between port A and port B.

To ensure the high-impedance state during power up or power down,

OE

A

B

2

8

1

1A1

1A4

1OE

SW

SW

1B4

1B1

18

12

11

17

19

2A1

2A4

2OE

SW

SW

2B4

2B1

9

3