General description
The 74CBTLV3126 provides a 4-bit high-speed bus switch with separate output enable
inputs (1OE to 4OE). The low on-state resistance of the switch allows connections to be
made with minimal propagation delay. The switch is disabled (high-impedance OFF-state)
when the output enable (nOE) input is LOW.
To ensure the high-impedance OFF-state during power-up or power-down, nOE should be
tied to the GND through a pull-down resistor. The minimum value of the resistor is
determined by the current-sinking capability of the driver.
Schmitt trigger action at control input makes the circuit tolerant to slower input rise and fall
times across the entire VCC range from 2.3 V to 3.6 V.
This device is fully specified for partial power-down applications using IOFF.
The IOFF circuitry disables the output, preventing the damaging backflow current through
the device when it is powered down.
Features and benefits
 Supply voltage range from 2.3 V to 3.6 V
 Standard ’126’-type pinout
 High noise immunity
 Complies with JEDEC standard:
 JESD8-5 (2.3 V to 2.7 V)
 JESD8-B/JESD36 (2.7 V to 3.6 V)
 ESD protection:
 HBM JESD22-A114F exceeds 2000 V
 MM JESD22-A115-A exceeds 200 V
 CDM AEC-Q100-011 revision B exceeds 1000 V
 5  switch connection between two ports
 Rail to rail switching on data I/O ports
 CMOS low power consumption
 Latch-up performance exceeds 250 mA per JESD78B Class I level A
 IOFF circuitry provides partial Power-down mode operation
 Multiple package options
 Specified from 40 C to +85 C and 40 C to +125 C