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IDT74LVC16646A Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. IDT74LVC16646A
Description  3.3V CMOS 16-BIT BUS TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS, 5 VOLT TOLERANT I/O
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74LVC16646A Datasheet(HTML) 1 Page - Integrated Device Technology

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EXTENDEDCOMMERCIALTEMPERATURERANGE
IDT74LVC16646A
3.3V CMOS 16-BIT BUS TRANSCEIVER/REGISTER
Functional Block Diagram
APRIL 1999
1998
Integrated Device Technology, Inc.
DSC-4488/1
c
IDT74LVC16646A
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
EXTENDED COMMERCIAL TEMPERATURE RANGE
FEATURES:
Typical tSK(0) (Output Skew) < 250ps
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
0.635mm pitch SSOP, 0.50mm pitch TSSOP
and 0.40mm pitch TVSOP packages
Extended commercial range of -40°C to +85°C
–VCC = 3.3V ±0.3V, Normal Range
–VCC = 2.7V to 3.6V, Extended Range
CMOS power levels (0.4µ W typ. static)
All inputs, outputs and I/O are 5 Volt tolerant
Supports hot insertion
DESCRIPTION:
The LVC16646A 16-bit bus transceiver/register is built using advanced
dual metal CMOS technology. This high-speed, low power device is
organized as two independent 8-bit D-type transceivers with 3-state D-type
registers. The control circuitry is organized for multiplexed transmission of
data between the A bus and B bus either directly or from the internal storage
registers. Each 8-bit transceiver/register features direction control (DIR),
over-riding Output Enable control (
OE) and Select lines (SAB and SBA) to
select either real-time data or stored data. Separate clock inputs are
provided for A and B port registers. Data on the A or B data bus, or both,
can be stored in the internal registers by the low-to-high transitions at the
appropriate clock pins. Flow-through organization of signal pins simplifies
layout. All inputs are designed with hysteresis for improved noise margin.
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.
The LVC16646A has been designed with a ±24mA output driver. The
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
3.3V CMOS 16-BIT BUS
TRANSCEIVER/REGISTER
WITH 3-STATE OUTPUTS,
5 VOLT TOLERANT I/O
Drive Features for LVC16646A:
High Output Drivers: ±24mA
Reduced system switching noise
TO S EVEN OTHE R CHANNELS
1
B1
B REG
1D
C1
A REG
1
A1
1
SAB
1
CLKAB
1
SBA
1
OE
1
CLKBA
TO S EVEN OTHE R CHANNELS
2
B1
B REG
A REG
2
A1
2
SAB
2
CLKAB
2
SBA
2
OE
2
CLKBA
2DIR
1
DIR
56
1
55
54
2
3
5
29
28
30
31
27
26
15
52
42
1D
C1
1D
C1
1D
C1


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