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SN74CBT3245A_10

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SN74CBT3245A_10 数据手册

SN74CBT3245A

OCTAL FET BUS SWITCH

SCDS002Q − NOVEMBER 1992 − REVISED DECEMBER 2004

Standard ’245-Type Pinout

TTL-Compatible Input Levels

5-Ω Switch Connection Between Two Ports

DB, DBQ, DGV, DW, OR PW PACKAGE

(TOP VIEW)

RGY PACKAGE

(TOP VIEW)

V_CC

GND

NC − No internal connection

GQN OR ZQN PACKAGE

(TOP VIEW)

terminal assignments

GND

NC − No internal connection

description/ordering information

The SN74CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP,

TSSOP, and TVSOP packages provide a standard ’245 device pinout. The low on-state resistance of the switch

allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch. When the output-enable (OE) input is low, the switch is on, and

port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between

the two ports.

To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup

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

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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