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SN74LV245AT-SN74LV245ATDBR-SN74LV245ATDWR-SN74LV245ATNSR-SN74LV245ATRGYR
Octal Bus Transceiver With 3-State Outputs
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW) 20
DIR
GND1
DIR
VCC
SN74LV245AT Typical tpdof 3.5 nsat5V external timing requirements.
Typical VOLP (Output Ground Bounce) <0.8V The SN74LV245AT allows transmission from the
at VCC=5V,TA= 25°C A busto theB busorB busto theA bus,
depending on the logic the direction-control
• Typical VOHV (Output VOH Undershoot) >2.3V(DIR) input. The output-enable (OE) input can be
at VCC=5V,TA= 25°C usedto disable the device that the buses are
• Supports Mixed-Mode Voltage Operation on effectively isolated.
All Ports ensure the high-impedance during power up
• Ioff Supports Partial-Power-Down Mode or power down, OE should tiedto VCC througha
Operation pullup resistor; the minimumof the resistoris
• Latch-Up Performance Exceeds 250 mA Per determined by the current-sinking capability of the
JESD17 driver.
ESD Protection Exceeds JESD22 This deviceis fully specified for partial-power-down
2000-V Human-Body Model (A114-A) applications using Ioff. The Ioff circuitry disables the
outputs, preventing damaging current backflow
– 1000-V Charged-Device Model (C101) through the device whenitis powered down.
