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IDT74LVC16646APA Datasheet

  • IDT74LVC16646APA

  • 3.3V CMOS 16-BIT BUS TRANSCEIVER/REGISTER WITH 3-STATE OUTPU...

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  • IDT

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IDT74LVC16646A
3.3V CMOS 16-BIT BUS TRANSCEIVER/REGISTER
EXTENDED COMMERCIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT BUS
TRANSCEIVER/REGISTER
WITH 3-STATE OUTPUTS,
5 VOLT TOLERANT I/O
FEATURES:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Typical
t
SK(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擄C to +85擄C
V
CC
= 3.3V 鹵0.3V, Normal Range
V
CC
= 2.7V to 3.6V, Extended Range
CMOS power levels (0.4碌 W typ. static)
All inputs, outputs and I/O are 5 Volt tolerant
Supports hot insertion
IDT74LVC16646A
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 鹵24mA output driver. The
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
Drive Features for LVC16646A:
鈥?High Output Drivers: 鹵24mA
鈥?Reduced system switching noise
APPLICATIONS:
鈥?5V and 3.3V mixed voltage systems
鈥?Data communication and telecommunication systems
Functional Block Diagram
56
29
1
OE
2
OE
1
DIR
1
2
DIR
55
28
1
CLKBA
1
SBA
2
CLKBA
2
SBA
2
CLKAB
30
54
2
31
27
1
CLKAB
1
SAB
3
2
SAB
26
B REG
1D
C1
1
A
1
5
B REG
1D
C1
52
A REG
1D
C1
1
B
1
2
A
1
15
A REG
1D
C1
42
2
B
1
TO SEVEN OTHER CHANNELS
TO SEVEN OTHER CHANNELS
EXTENDED COMMERCIAL TEMPERATURE RANGE
1
c
1998 Integrated Device Technology, Inc.
APRIL 1999
DSC-4488/1

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