IDT74LVC4245A Datasheet, PDF (1/8 Pages) Integrated Device Technology – CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER WITH 3-STATE OUT-PUTS AND 5 VOLT TOLERANT I/O

IDT74LVC4245A
CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER
INDUSTRIAL TEMPERATURE RANGE
CMOS OCTAL BUS
TRANSCEIVER AND 3.3V TO 5V
SHIFTER WITH 3-STATE OUT-
PUTS AND 5 VOLT TOLERANT I/O
IDT74LVC4245A
FEATURES:
• 0.5 MICRON CMOS Technology
• VCCA = 5V ± 0.5V
• VCCB = 2.7V to 3.6V
• 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 SOIC, SSOP, QSOP, and TSSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Reduced system switching noise
DESCRIPTION:
The LVC4245A is manufactured using advanced dual metal CMOS
technology. This octal noninverting bus transceiver contains two separate
supply rails; B port has VCCB, which is set at 3.3V, and A port has VCCA, which
is set at 5V. This allows for translation from a 3.3V to a 5V environment, and
vice-versa.
This device is ideal for asynchronous communication between two buses
(A and B). The direction control pin (DIR) controls the direction of data flow.
The output enable pin (OE) overrides the direction control and disables both
ports. All inputs are designed with hysteresis for improved noise margin.
The LVC4245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
DIR ²
A1 ³
4
A2
A3 ⁵
A4 ⁶
A5 ⁷
A6 ⁸
A7 ⁹
A8 ¹⁰
22 _OE
21 _B1
20
B2
19 _B3
18 _B4
17 _B5
16 _B6
15 _B7
14 _B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2000 Integrated Device Technology, Inc.
JULY 2000
DSC-4754/1