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NXP Semiconductors |
INTEGRATED CIRCUITS
DATA SHEET
74LVC2245A
Octal transceiver with direction pin;
30 Ω series termination resistors;
5 V input/output tolerant; 3-state
Product specification
Supersedes data of 1999 Mar 23
File under Integrated Circuits, IC24
1999 Jun 15
Philips Semiconductors
Octal transceiver with direction pin; 30 Ω series
termination resistors; 5 V input/output tolerant; 3-state
Product specification
74LVC2245A
FEATURES
• 5 V tolerant inputs/outputs for interfacing with 5 V logic
• Wide supply voltage range of 1.2 to 3.6 V
• CMOS low power consumption
• Direct interface with TTL levels
• Integrated 30 Ω termination resistors
DESCRIPTION
The 74LVC2245A is a high-performance, low-power,
low-voltage, Si-gate CMOS device, superior to most
advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3 or 5 V devices.
In 3-state operation, outputs can handle 5 V. These
features allow the use of these devices as translators in a
mixed 3.3 V/5 V environment.
The 74LVC2245A is an octal transceiver featuring
non-inverting 3-state bus compatible outputs in both send
and receive directions. The ‘245’ 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.
The 74LVC2245A is designed with 30 Ω series termination
resistors in both HIGH and LOW output stages to reduce
line noise.
FUNCTION TABLE
See note 1.
OE
L
L
H
INPUT
Note
1. H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
DIR
L
H
X
An
A=B
inputs
Z
INPUT/OUTPUT
Bn
inputs
B=A
Z
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
NORTH AMERICA
74LVC2245AD
74LVC2245ADB
74LVC2245APW
74LVC2245AD
74LVC2245ADB
74LVC2245APW DH
PACKAGE
TEMPERATURE
RANGE
−40 to +85 °C
PINS
20
20
20
PACKAGE
SO
SSOP
TSSOP
MATERIAL CODE
plastic
plastic
plastic
SOT163-1
SOT339-1
SOT360-1
1999 Jun 15
2
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