IDT74ALVCH16244 Datasheet, PDF (1/6 Pages) Integrated Device Technology – 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS AND BUS-HOLD

IDT74ALVCH16244
3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
3.3V CMOS 16-BIT
BUFFER/DRIVER WITH
3-STATE OUTPUTS
AND BUS-HOLD
INDUSTRIAL TEMPERATURE RANGE
IDT74ALVCH16244
FEATURES:
• 0.5 MICRON CMOS Technology
• 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
• VCC = 2.5V ± 0.2V
• CMOS power levels (0.4µ W typ. static)
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP, TSSOP, and TVSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Suitable for heavy loads
DESCRIPTION:
This 16-bit buffer/driver is built using advanced dual metal CMOS technol-
ogy. The ALVCH16244 is designed specifically to improve 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. It provides true outputs and
symmetrical active-low output-enable (OE) inputs.
The ALVCH16244 has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining speed
performance.
The ALVCH16244 has “bus-hold” which retains the inputs’ last state
whenever the input bus goes to a high impedance. This prevents floating inputs
and eliminates the need for pull-up/down resistors.
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
FUNCTIONAL BLOCK DIAGRAM
1OE
1
1A1 ⁴⁷
1A2
46
1A 3
44
43
1A 4
2
1Y1
3
1Y2
5
1Y3
6
1Y4
25
3OE
3A1
36
3A2
35
33
3A3
32
3A4
13 _3Y1
14 _3Y2
16 _3Y3
17 _3Y4
2OE ⁴⁸
4OE
24
2A1 ⁴¹
8
2Y1
2A 2
40
9
2Y2
2A3
38
11
2Y3
2A4
37
12
2Y4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 1999 Integrated Device Technology, Inc.
4A1
30
4A2
29
4A3
27
4A4
26
19 _4Y1
20 _4Y2
22 _4Y3
23 _4Y4
MARCH 1999
DSC-4561/1