1. General description

The 74LVT244B; 74LVTH244B is an 8-bit buffer/line driver with 3-state outputs. The device can

be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and

2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a

high-impedance OFF-state. Bus hold data inputs eliminate the need for external pull-up resistors to

define unused inputs

2. Features and benefits

• Octal bus interface

• 3-state buffers

• Speed upgrade of 74LVT244A

• Wide supply voltage range from 2.7 to 3.6 V

• BiCMOS high speed and output drive

• Output capability: +64 mA and -32 mA

• Direct interface with TTL levels

• Overvoltage tolerant inputs to 5.5 V

• Input and output interface capability to systems at 5 V supply

• Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs

• No bus current loading when output is tied to 5 V bus

• Power-up 3-state

• Live insertion and extraction permitted

• IOFF circuitry provides partial Power-down mode operation

• Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

• Complies with JEDEC standards

• JESD8C (2.7 V to 3.6 V)

• ESD protection:

• HBM EIA/JESD22-A114-C exceeds 2000 V

• MM EIA/JESD22-A115-A 200 V

• Specified from -40 °C to +85 °C