HD74LVCR2245A Datasheet, PDF (1/10 Pages) Hitachi Semiconductor – Octal Bidirectional Transceivers with 3-state Outputs

HD74LVCR2245A
Octal Bidirectional Transceivers with 3–state Outputs
REJ03D0377–0400
(Previous ADE-205-235B (Z))
Rev.4.00
Aug. 20, 2004
Description
The HD74LVCR2245A has eight buffers with three state outputs in a 20 pin package. When (T / R) is high, data flows
from the A inputs to the B outputs, and when (T / R) is low, data flows from the B inputs to the A outputs. A and B bus
are separated by making enable input (OE) high level.
All outputs, which are designed to sink up to 12mA, include equivalent 26 Ω resistors to reduce overshoot and
undershoot.
Low voltage and high-speed operation is suitable at battery drive product (note type personal computer) and low power
consumption extends the life of a battery for long time operation.
Features
• V_CC = 1.65 to 5.5 V
• All inputs V_IH (Max) = 5.5 V (@V_CC = 0 to 5.5 V)
• All inputs / outputs V_{I / O} (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 ±12mA (@V_CC = 3.0 to 5.5 V)
• All outputs have equivalent 26 Ω series resistors, so no external resistors are required
• Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
HD74LVCR2245AFPEL SOP–20 pin (JEITA) FP–20DAV
FP
HD74LVCR2245ATELL TSSOP–20 pin
TTP–20DAV
T
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Inputs
OE
L
L
H
H: High level
L: Low level
X: Immaterial
Z: High impedance
T/R
L
H
X
Operation
B data to A bus
A data to B bus
Z
Rev.4.00 Aug. 20, 2004 page 1 of 9