IDT74LVC2244A Datasheet, PDF (1/6 Pages) Integrated Device Technology – 3.3V CMOS OCTAL BUFFER/DRIVER WITH 3- STATE OUTPUTS AND 5 VOLT TOLERANT I/O

IDT74LVC2244A
3.3V CMOS OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
3.3V CMOS OCTAL
BUFFER/DRIVER WITH 3-
STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
INDUSTRIAL TEMPERATURE RANGE
IDT74LVC2244A
FEATURES:
• 0.5 MICRON CMOS Technology
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• VCC = 3.3V ± 0.3V, Normal Range
• VCC = 2.7V 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 5V tolerant
• Available in SOIC, SSOP, QSOP, and TSSOP packages
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA
• Low switching noise
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
DESCRIPTION:
This octal buffer/driver is built using advanced dual metal CMOS
technology. The LVC2244A device is organized as two 4-bit line drivers
with separate output-enable (OE) inputs. When OE is low, the device
passes data from the A inputs to the Y outputs. When OE is high, the outputs
are in the high-impedance state.
To ensure the high-impedance state during power up or power down,
OE should be tied to Vcc through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking capability of the driver.
The LVC2244A has series resistors in the device output structure which
will significantly reduce line noise when used with light loads. This driver
has been designed to drive ±12mA at the designated threshold levels.
Inputs 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 system environ-
ment.
FUNCTIONAL BLOCK DIAGRAM
1OE ¹
1A1 ²
1A2 ⁴
1A3 ⁶
1A4 ⁸
18 _1Y1
16 _1Y2
14
1Y3
12 _1Y4
19
2OE
2A1 ¹¹
2A2 ¹³
2A3 ¹⁵
2A4 ¹⁷
9 _2Y1
7 _2Y2
5
2Y3
3 _2Y4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2000 Integrated Device Technology, Inc.
FEBRUARY 2000
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