74ABT16244 16-Bit Buffer/Line Driver with 3-STATE Outputs April 1992 Revised May 2005 74ABT16244 16-Bit Buffer/Line Driver with 3-STATE Outputs General Description Features The ABT16244 contains sixteen non-inverting buffers with Separate control logic for each nibble 3-STATE outputs designed to be employed as a memory 16-bit version of the ABT244 and address driver, clock driver, or bus oriented transmit- Outputs sink capability of 64 mA, source capability of ter/receiver. The device is nibble controlled. Individual 3- 32 mA STATE control inputs can be shorted together for 8-bit or Guaranteed output skew 16-bit operation. Guaranteed multiple output switching specifications Output switching specified for both 50 pF and 250 pF loads Guaranteed simultaneous switching noise level and dynamic threshold performance Guaranteed latchup protection High impedance glitch free bus loading during entire power up and power down cycle Non-destructive hot insertion capability Ordering Code: Order Number Package Number Package Description 74ABT16244CSSC MS48A 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide 74ABT16244CMTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices are also available in Tape and Reel. Specify by appending the suffix letter X to the ordering code. Logic Symbol Connection Diagram Pin Descriptions Pin Names Description OE Output Enable Inputs (Active LOW) n I I Inputs 0 15 O O Outputs 0 15 2005 Fairchild Semiconductor Corporation DS010985 www.fairchildsemi.comTruth Tables Functional Description The ABT16244 contains sixteen non-inverting buffers with Inputs Outputs 3-STATE outputs. The device is nibble (4 bits) controlled with each nibble functioning identically, but independent of OE I I O O 1 0 3 0 3 the other. The control pins can be shorted together to obtain full 16-bit operation. L L L L H H Logic Diagram H X Z Inputs Outputs OE I I O O 2 4 7 4 7 L L L L H H H X Z Inputs Outputs OE I I O O 3 8 11 8 11 L L L L H H H X Z Inputs Outputs OE I I O O 4 12 15 12 15 L L L L H H H X Z H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance www.fairchildsemi.com 2 74ABT16244