GENERAL DEscriptION
The 74ALVC164245 is a 16-bit dual-supply translating transceiver with 3-state outputs. It is CMOS device that features high-performance, low-power, low-voltage and surpasses most advanced CMOS compatible TTL series. The inputs from 3V and 5V make this device can be used as a translator in a mixed 3V and 5V system environment.
The device can be used as two 8-bit transceivers or as a 16-bit transceiver. The nAn and nBn are four 8-bit input and output ports. nDIR are the direction control inputs and nOE are the output-enable inputs. VCCA and VCCB are dual-supply pins. The supply voltage of VCCA and VCCB can range from 1.5V to 3.6V and 1.5V to 5.5V. nAn, nOE and nDIR are referenced to VCCA and pins nBn are referenced to VCCB.
When nDIR is set high, it allows transmission from nAn to nBn. When nDIR is set low, it allows transmission from nBn to nAn. When the output-enable (nOE) input is high, both nAn and nBn ports are disabled by placing them in a high-impedance state.
In suspend mode, when VCCA or VCCB is 0V, there is no current flow from the non-zero supply to the zero supply. VCCA must be less than or equal to VCCB for proper device operation, except in suspend mode.
FEATURES
VCCA Supply Voltage Range: 1.5V to 3.6V
VCCB Supply Voltage Range: 1.5V to 5.5V
Inputs Accept Voltages up to 5.5V
Control Inputs Voltage Range: 2.7V to 5.5V
CMOS Low Power Dissipation
Direct Interface with TTL Levels
Outputs in High-Impedance State when VCCA or VCCB = 0V
-40℃ to +125℃ Operating Temperature Range
Available in a Green TSSOP-48 Package