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參數(shù)資料
| 型號(hào)： | SNJ54ABT646AFK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封裝： | CERAMIC, LCC-28 |
| 文件頁(yè)數(shù)： | 12/23頁(yè) |
| 文件大小： | 690K |
| 代理商： | SNJ54ABT646AFK |
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SN54ABT646A, SN74ABT646A
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3STATE OUTPUTS
SCBS069H JULY 1991 REVISED MAY 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information(continued)
Output-enable (OE) and direction-control (DIR) inputs are provided to control the transceiver functions. In the
transceiver mode, data present at the high-impedance port can be stored in either register or in both.
The select-control (SAB and SBA) inputs can multiplex stored and real-time (transparent mode) data. The
direction control (DIR) determines which bus receives data when OE is low. In the isolation mode (OE high),
A data can be stored in one register and/or B data can be stored in the other register.
When an output function is disabled, the input function still is enabled and can be used to store and transmit
data. Only one of the two buses, A or B, can be driven at a time.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
To ensure the high-impedance state during power up or power down, 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.
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| SNJ54ABT646AJT | 制造商:Texas Instruments 功能描述:Bus XCVR Single 8-CH 3-ST 24-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| SNJ54ABT646AW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
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| SNJ54ABT652AJT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SNJ54ABT652AW | 制造商:Texas Instruments 功能描述: |
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