74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
Rev. 05 — 25 August 2009
Product data sheet
1. General description
The 74LVC245A; 74LVCH245A are 8-bit transceivers featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The device features an output
enable (OE) input for easy cascading and a send/receive (DIR) input for direction control.
OE controls the outputs so that the buses are effectively isolated.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices in mixed
3.3 V and 5 V applications.
The 74LVCH245A bus hold on data inputs eliminates the need for external pull-up
resistors to hold unused inputs.
2. Features
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I
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5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Inputs accept voltages up to 5.5 V
High-impedance when V
CC
= 0 V
Bushold on all data inputs (74LVCH245A only)
Complies with JEDEC standard no. 8-1A
ESD protection:
N
HBM JESD22-A114E exceeds 2000 V
N
MM JESD22-A115-A exceeds 200 V
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Specified from
−40 °C
to +85
°C
and
−40 °C
to +125
°C
PHILIPS [ NXP SEMICONDUCTORS ]
