CLVTH16245AMDLREP datasheet(2/17 Pages) TI1

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DESCRIPTION/ORDERING INFORMATION

GQL ORZQL PACKAGE

(TOP VIEW)

SN74LVTH16245A-EP

3.3-V ABT 16-BIT BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCAS693G – APRIL 2003 – REVISED OCTOBER 2006

The SN74LVTH16245A is a 16-bit (dual-octal) noninverting 3-state transceiver designed for low-voltage (3.3-V)

VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the

A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)

input. The output-enable (OE) input can be used to disable the devices so that the buses effectively are isolated.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown

resistors with the bus-hold circuitry is not recommended.

When VCC is between 0 V and 1.5 V, the device is in the high-impedance state during power up or power down.

However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor;

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

This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry

disables the outputs, preventing damaging current backflow through the device when it is powered down. The

power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

TERMINAL ASSIGNMENTS(1)

1DIR

1OE

1B2

1B1

GND

1A1

1A2

1B4

1B3

VCC

1A3

1A4

1B6

1B5

GND

1A5

1A6

1B8

1B7

1A7

1A8

2B1

2B2

12A2

2A1

2B3

2B4

GND

2A4

2A3

2B5

2B6

VCC

2A6

2A5

2B7

2B8

GND

2A8

2A7

2DIR

2OE

(1)

NC – no internal connection

ORDERING INFORMATION

PACKAGE(1)

ORDERABLE PART NUMBER

TOP-SIDE MARKING

SSOP – DL

Tape and reel

CLVTH16245AQDLREP

LH16245AEP

–40

°C to 125°C

TSSOP – DGG

Tape and reel

CLVTH16245AQDGGREP

LH16245AEP

TVSOP – DGV

Tape and reel

CLVTH16245AIDGVREP

LL245AEP

VFBGA – GQL

CLVTH16245AIGQLREP

–40

°C to 85°C

Tape and reel

LL245AEP

VFBGA – ZQL

CLVTH16245AIZQLREP

(Pb-free)

–55

°C to 125°C

SSOP – DL

Tape and reel

CLVTH16245AMDLREP

LH16245AEP

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

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