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| IDT74ALVCH16245 Datasheet, PDF (1/6 Pages) Integrated Device Technology – 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND BUS-HOLD | |||
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IDT74ALVCH16245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
3.3V CMOS 16-BIT BUS
TRANSCEIVER WITH
3-STATE OUTPUTS
AND BUS-HOLD
INDUSTRIAL TEMPERATURE RANGE
IDT74ALVCH16245
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
APPLICATIONS:
⢠3.3V high speed systems
⢠3.3V and lower voltage computing systems
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. The ALVCH16245 is designed for asynchronous communication
between data buses. The control-function implementation minimizes external
timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit transceiver.
It allows data transmission from the A bus to the B bus or from the B bus to the
A bus, depending on the logic level at the direction-control (DIR) input. The
output-enable (OE) input can be used to disable the device so that the buses
are effectively isolated.
The ALVCH16245 has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining speed
performance.
The ALVCH16245 has âbus-holdâ which retains the inputsâ last state
whenever the input bus goes to a high impedance. This prevents floating inputs
and eliminates the need for pull-up/down resistors.
FUNCTIONAL BLOCK DIAGRAM
1DIR 1
1A1 47
1A2 46
1A3 44
1A4 43
1A5 41
1A6 40
1A7 38
1A8 37
48 1OE
2 1B1
3 1B2
5 1B3
6
1B4
8 1B5
9 1B6
11 1B7
12 1B8
2DIR 24
2A1 36
35
2A2
2A3 33
2A4 32
2A5 30
2A6 29
2A7 27
2A8 26
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 1999 Integrated Device Technology, Inc.
25 2OE
13 2B1
14 2B2
16 2B3
17 2B4
19 2B5
20 2B6
22 2B7
23 2B8
MARCH 1999
DSC-4697/1
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