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The 74LVCH244A provides two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
The device is designed for operation with a power supply range of 1.65V to 3.6V.
The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output preventing damaging current backflow when the device is powered down.
Bus hold circuitry holds unused or un-driven inputs at a high or low logic state. The use of external pull-up or pull down resistors is not recommended.
Supply Voltage Range from 1.65V to 3.6V
Sinks or Sources 24mA at VCC = 3V
CMOS Low Power Consumption
IOFF Supports Partial-Power Down Operation
Inputs or Outputs Accept up to 5.5V
Inputs Can be Driven by 3.3V or 5V Allowing for Mixed Voltage Applications
Schmitt Trigger Action at All Inputs
Typical VOLP (Quiet Output Ground Bounce) less than 0.8V with VCC = 3.3V and TA = +25°C
Typical VOHV (Quiet Output Dynamic VOH) greater than 2.0V with VCC = 3.3V and TA = +25°C
ESD Protection Tested per JESD 22
Exceeds 200-V Machine Model (A115)
Exceeds 2000-V Human Body Model (A114)
Exceeds 1000-V Charged Device Model (C101)
Latch-Up Exceeds 250mA per JESD 78, Class I
Totally Lead-Free & Fully RoHS compliant
Halogen and Antimony Free. Green” Device
General Purpose Logic
Power Down Signal Isolation
Wide array of products such as:
PCs, Notebooks, Netbooks, Ultrabooks
Networking Computer Peripherals, Hard Drives, CD/DVD ROM
TV, DVD, DVR, set top box
Number of Gates
VCC Min (V)
VCC Maximum Rating
tpd max @ (1.5V)
tpd max @ 1.8V (ns)
tpd max @ 2.5V (ns)
tpd max @ 3.3V (ns)
tpd max @ 5.0V (ns)
Input/ Output Current
Octal Buffer/Line Driver with Bus Hold / 3 State Outputs