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SN74ALVCHR16245DGG , 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
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SN74ALVCHR162245DL-SN74ALVCHR162245DLR
16-Bit Bus Transceiver With 3-State Outputs 48-SSOP -40 to 85
Resistors, So No External Resistors Are
Required ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0) Latch-Up Performance Exceeds 250 mA Per
JESD 17 Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) PackagesNOTE: For order entry:
The DGG package is abbreviated to G.
descriptionThis 16-bit (dual-octal) noninverting bus
transceiver is designed for 1.65-V to 3.6-V VCC
operation.
The SN74ALVCHR162245 is designed for
asynchronous communication between data
buses. The control-function implementation
minimizes external timing requirements.
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 device so that the buses are effectively isolated.
All outputs, which are designed to sink up to 12 mA, include equivalent 26-W series resistors to reduce overshoot
and undershoot.
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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCHR162245 is characterized for operation from –40°C to 85°C.
1B2
GND
1B3
1B4
VCC
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4CC
2B5
2B6
GND
2B7
2B8
2DIR
1A2
GND
1A3
1A4
VCC
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4CC
2A5
2A6
GND
2A7
2A8
2OE
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.
