IDT74LVCC4245 Datasheet, PDF (1/10 Pages) Integrated Device Technology – CMOS OCTAL DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE OUTPUT VOLTAGE, 3-STATE OUTPUTS, 3.3V AND 5V I/O

IDT74LVCC4245A
CMOS OCTAL DUAL-SUPPLY BUS TRANSCEIVER
INDUSTRIAL TEMPERATURE RANGE
CMOS OCTAL DUAL-SUPPLY
IDT74LVCC4245A
BUS TRANSCEIVER WITH
CONFIGURABLE OUTPUT VOLTAGE,
3-STATE OUTPUTS, 3.3V AND 5V I/O
FEATURES:
• 0.5 MICRON CMOS Technology
• VCCA = 5V ± 0.5V
• VCCB = 2.7V to 5.5V
• CMOS power levels (0.4µ W typ. static)
• Rail-to-rail output swing for increased noise margin
• All inputs, outputs, and I/O are 5V tolerant
• Supports hot insertion
• Available in SSOP, QSOP, and TSSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DESCRIPTION:
The LVCC4245A is manufactured using advanced dual metal CMOS
technology. This 8-bit (octal) noninverting bus transceiver contains two
separate power-supply rails. The configurable B port is designed to track
VCCB, which accepts voltages from 3V to 5V, and the A port is dedicated to
accept a 5V supply level. This allows for translation from a 3.3V to a 5V
system environment and vice-versa.
This LVCC4245A is ideal for asynchronous communication between two
data buses (A and B). The device transmits data from A to B or from B to
A, depending on the logic level at the direction-control (DIR) input. The
output-enable (OE) input can be used to disable the device so the buses are
effectively isolated.
The LVCC4245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
FUNCTIONAL BLOCK DIAGRAM
2
DIR
A1 ³
4
A2
A3 ⁵
A4 ⁶
A5 ⁷
A6 ⁸
A7 ⁹
A8 ¹⁰
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2004 Integrated Device Technology, Inc.
22 _OE
21 _B1
20
B2
19 _B3
18 _B4
17 _B5
16 _B6
15 _B7
14 _B8
JANUARY 2004
DSC-5166/2