ACTIVE
Part Number
UM74AVC8T245
Description
8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs
Status
ACTIVE
Bits (#)
8
Max Data Rate (Mbps)
400
Direction Control
Controlled
VCCA(Min) (V)
1
VCCA(Max) (V)
3.6
VCCB(Min) (V)
1
VCCB(Max) (V)
3.6
Output Type
Push-Pull
Operating Temperature Range (℃)
-40 to 125
Package
QFN24 3.5x5.5, TSSOP24
The UM74AVC8T245 is designed for asynchronous communication between two data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control input (DIR). The output-enable (/OE) input can be used to disable the outputs so the buses are effectively isolated. The UM74AVC8T245 is designed so that the control pins (DIR and /OE) are referenced to VCCA voltage.
This device is fully specified for partial-power-down applications using IOFF. The IOFF circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC input supply is below 100mV, all level shifter outputs are disabled and placed into a high impedance state. To put the device into the high-impedance state during power up or power down, tie /OE to VCC through a pull-up resistor; the current-sinking capability of the driver determines the minimum value of the resistor.
- Control inputs VIH/VIL levels are referenced to VCCA voltage
- IOFF supports partial power-down mode operation
- VCC isolation feature – if either VCC input is at GND, all are in the high-impedance state
- Fully configurable dual-rail design allows each port to operate over the full 1V to 3.6V power supply range
- Up to 400Mbps support when translating from 1.8V to 3.3V
- Latch-up performance exceeds 800 mA per JESD 78, Class II
- ESD protection exceeds JESD22
-- ±8kV Human body model (A114-A)
-- ±2kV Charged-device model
- Enterprise and communications
- Industrial
- Personal electronics
- Wireless infrastructure
- Building automation
- Point of sale
| Part Number | Packaging Type | Marking Code | Shipping Qty |
|---|---|---|---|
| UM74AVC8T245UO | TSSOP24 | 8T245UO | 3000pcs/13Inch Tape & Reel |
| UM74AVC8T245QB | QFN24 3.5×5.5 | AVC8T245 | 3000pcs/13Inch Tape & Reel |
