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SN74ALVCH16863
18-Bit Transceiver With 3-State Outputs
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) Packages
descriptionThis 18-bit bus transceiver is designed for 1.65-V
to 3.6-V VCC operation.
The SN74ALVCH16863 is an 18-bit noninverting
transceiver designed for synchronous
communication between data buses. The
control-function implementation minimizes
external timing requirements.
The SN74ALVCH16863 can be used as two 9-bit
transceivers or one 18-bit transceiver. They allow
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 output-enable (OEAB or OEBA)
inputs.
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 SN74ALVCH16863 is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each 9-bit section)1B2
GND
1B3
1B4
VCC
1B5
1B6
1B7
GND
1B8
1B9
GND
GND
2B1
2B2
GND
2B3
2B4
2B5
VCC
2B6
2B7
GND
2B8
2B9
2OEAB
1A2
GND
1A3
1A4
VCC
1A5
1A6
1A7
GND
1A8
1A9
GND
GND
2A1
2A2
GND
2A3
2A4
2A5
VCC
2A6
2A7
GND
2A8
2A9
2OEBA
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.
