IDT74LVC245A
3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
EXTENDED COMMERCIAL TEMPERATURE RANGE
3.3V CMOS
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
DESCRIPTION:
FEATURES:
–
–
–
–
–
–
–
–
–
–
IDT74LVC245A
ADVANCE
INFORMATION
0.5 MICRON CMOS Technology
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
1.27mm pitch SOIC, 0.65mm pitch SSOP,
0.635mm pitch QSOP, 0.65mm pitch TSSOP packages
Extended commercial range of – 40°C to +85°C
VCC = 3.3V ±0.3V, Normal Range
VCC = 2.3V to 3.6V, Extended Range
CMOS power levels (0.4µ W typ. static)
Rail-to-Rail output swing for increased noise margin
All inputs, outputs and I/O are 5 Volt tolerant
Supports hot insertion
This octal bus transceiver is built using advanced dual metal CMOS
technology. This high-speed, low power transceiver is ideal for asynchronous communication between two busses (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 LVC245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
All pins can be driven from either 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mixed 3.3V/5V supply system.
Drive Features for LVC245A:
– High Output Drivers: ±24mA
– Reduced system switching noise
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
Functional Block Diagram
DIR
1
19
OE
A1
2
18
B1
3
A2
17
B2
A3
4
16
B3
A4
5
15
B4
6
A5
14
B5
7
A6
13
B6
A7
8
12
B7
A8
9
11
B8
EXTENDED COMMERCIAL TEMPERATURE RANGE
APRIL 1999
1
c
1999 Integrated Device Technology, Inc.
DSC-4496/-
