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參數(shù)資料
| 型號： | SN54LVCH245AFK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 180K |
| 代理商： | SN54LVCH245AFK |
The SN54LVCH245A octal bus transceiver is designed for 2.7-V to 3.6-V V
CC
operation and the
SN74LVCH245A octal bus transceiver is designed for 1.65-V to 3.6-V V
CC
operation.
These devices are designed for asynchronous communication between data buses. These
devices transmit data 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 device so the buses are effectively isolated.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these
devices as translators in a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE\ should be tied to
V
CC
through a pullup resistor; the minimum value of the resistor is determined by the current-
sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic
level.
The SN54LVCH245A is characterized for operation over the full military temperature range of -
55°C to 125°C. The SN74LVCH245A is characterized for operation from -40°C to 85°C.
To view the following documents, Acrobat Reader 3.x is required.
To download a document to your hard drive, right-click on the link and choose 'Save'.
Full datasheet in Acrobat PDF: sces008f.pdf (127 KB) (Updated: 06/15/1998)
Full datasheet in Zipped PostScript: sces008f.psz (135 KB)
View Application Reports for Digital Logic
l
Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive
Outputs (SCBA012A - Updated: 08/01/1997)
l
CMOS Power Consumption and CPD Calculation (SCAA035B - Updated: 06/01/1997)
l
Implications of Slow or Floating CMOS Inputs (SCBA004C - Updated: 02/01/1998)
l Input and Output Characteristics of Digital Integrated Circuits (SDYA010 -
Updated:
10/01/1996)
l LVC Characterization Information (SCBA011 -
Updated: 12/01/1996)
l
LVT-to-LVTH Conversion (SCEA010 - Updated: 12/08/1998)
l
Live Insertion (SDYA012 - Updated: 10/01/1996)
l Logic Solutions For IEEE Std 1284 (SCEA013 -
Updated: 06/01/1999)
l
Low-Voltage Logic (LVC) Designer's Guide (SCBA010 - Updated: 09/01/1996)
l
Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices (SCEA005 - Updated:
12/01/1997
)
l
Understanding Advanced Bus-Interface Products Design Guide (SCAA029, 253 KB -
Updated: 05/01/1996)
DESCRIPTION
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TECHNICAL DOCUMENTS
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DATASHEET
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APPLICATION NOTES
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