HD74LVC16245A Datasheet, PDF (1/9 Pages) Hitachi Semiconductor – 16-bit Bus Transceivers with 3-state Outputs

HD74LVC16245A
16-bit Bus Transceivers with 3-state Outputs
ADE-205-120B(Z)
3rd Edition
December 1996
Description
The HD74LVC16245A has sixteen two direction buffers, for the fittest at two direction bus lines with three
state outputs. A direction control input, DIR. When DIR is high, data flows from the A inputs to the B
outputs. When DIR is high, data flows from the B inputs to the A outputs. When enable inputs (G) is high,
disables both A and B ports by placing then in a high impedance. Low voltage and high speed operation is
suitable at the battery drive product (note type personal computer) and low power consumption extends the
life of a battery for long time operation.
Features
• V_CC = 2.0 V to 5.5 V
• All inputs V_IH (Max.) = 5.5 V (@V_CC = 0 V to 5.5 V)
• All outputs V_OUT (Max.) = 5.5 V (@V_CC = 0 V or output off state)
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.0 V (@V_CC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@V_CC = 3.0 V to 5.5 V)
Function Table
G
L
L
H
H: High level
L: Low level
X: Immaterial
Z:
High impedance
Inputs
DIR
L
H
X
Operation
B data to A bus
A data to B bus
Z