IDT74LVCH162244A
3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
IDT74LVCH162244A
3.3V CMOS 16-BIT
BUFFER/DRIVER WITH 3-STATE
OUTPUTS, 5 VOLT TOLERANT I/O,
AND BUS-HOLD
FEATURES:
DESCRIPTION:
• Typical tSK(o) (Output Skew) < 250ps
• 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)
μ
• All inputs, outputs, and I/O are 5V tolerant
• Available in TSSOP and TVSOP packages
The LVCH162244A 16-bit buffer/driver is built using advanced dual
metal CMOS technology. The LVCH162244A is designed specifically to
improve both the performance and density of 3-state memory address
drivers, clock drivers, and bus-oriented receivers and transmitters. The
device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer.
This device provides true outputs and symmetrical active-low output-enable
(OE) inputs.
All pins of this 16-bit buffer/driver 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.
The LVCH162244A has series resistors in the device output structure
which will significantly reduce line noise when used with light loads. This
driver has been developed to drive ±12mA at the designated threshold
levels.
The LVCH162244A has “bus-hold” which retains the inputs’ last state
whenever the input goes to a high impedance. This prevents floating inputs
and eliminates the need for pull-up/down resistors.
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA
• Full internal series termination
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
3OE
47
2
1A2
46
3
1A3
44
5
1A4
43
6
2OE
41
8
2A2
40
9
2A3
38
11
2A4
37
12
3A1
36
13
3Y1
1Y2
3A2
35
14
3Y2
1Y3
3A3
33
16
1Y4
3A4
32
17
3Y4
24
2Y1
4A1
30
19
4Y1
2Y2
4A2
29
20
4Y2
2Y3
4A3
27
22
2Y4
4A4
26
23
48
2A1
1Y1
1
1A1
25
4OE
1OE
3Y3
4Y3
4Y4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
MARCH 2006
1
© 2006 Integrated Device Technology, Inc.
DSC-4727/5
