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IDT74FCT16543CT Datasheet

FAST CMOS 16-BIT LATCHED TRANSCEIVER

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IDT74FCT16543AT/CT
FAST CMOS 16-BIT LATCHED TRANSCEIVER
FAST CMOS
16-BIT LATCHED
TRANSCEIVER
INDUSTRIALTEMPERATURERANGE
IDT74FCT16543AT/CT
FEATURES:
• 0.5 MICRON CMOS Technology
• High-speed, low-power CMOS replacement for ABT functions
• Typical tSK(o) (Output Skew) < 250ps
• Low input and output leakage 1µA (max.)
• VCC = 5V ±10%
• High drive outputs (–32mA IOH, 64mA IOL)
• Power off disable outputs permit “live insertion”
• Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V,
TA = 25°C
• Available in SSOP and TSSOP packages
DESCRIPTION:
The FCT16543T 16-bit latched transceivers are built using advanced
dual metal CMOS technology. These high-speed, low-power devices are
organized as two independent 8-bit D-type latched transceivers with
separate input and output control to permit independent control of data flow
in either direction. For example, the A-to-B Enable (xCEAB) must be low
in order to enter data from the A port or to output data from the B port. xLEAB
controls the latch function. When xLEAB is low, the latches are transparent.
A subsequent low-to-high transition of xLEAB signal puts the A latches in
the storage mode. xOEAB performs output enable function on the B port.
Data flow from the B port to the A port is similar but requires using xCEBA,
xLEBA, and xOEBA inputs. Flow-through organization of signal pins
simplifies layout. All inputs are designed with hysteresis for improved noise
margin.
The FCT16543T is ideally suited for driving high-capacitance loads
and low-impedance backplanes. The output buffers are designed with
power off disable capability to allow "live insertion" of boards when used
as backplane drivers.
FUNCTIONAL BLOCK DIAGRAM
1OEBA 56
1CEBA 54
1LEBA 55
1OEAB 1
1CEAB 3
1LEAB 2
1A1 5
2OEBA 29
2CEBA 31
2LEBA 30
2OEAB 28
2CEAB 26
2LEAB 27
C
2A1 15
D 52 1B1
C
D
C
D
C
D 42 2B1
TO SEVEN OTHER CHANNELS
TO SEVEN OTHER CHANNELS
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
©2017 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
JULY 2017
DSC-5444/6


Integrated Device Technology Electronic Components Datasheet

IDT74FCT16543CT Datasheet

FAST CMOS 16-BIT LATCHED TRANSCEIVER

No Preview Available !

IDT74FCT16543AT/CT
FAST CMOS 16-BIT LATCHED TRANSCEIVER
PIN CONFIGURATION
1OEAB
1LEAB
1CEAB
GND
1A1
1A2
VCC
1A3
1A4
1A5
GND
1A6
1A7
1A8
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2CEAB
2LEAB
2OEAB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
1OEBA
1LEBA
1CEBA
GND
1B1
1B2
VCC
1B3
1B4
1B5
GND
1B6
1B7
1B8
2B1
2B2
2B3
GND
2B4
2B5
2B6
VCC
2B7
2B8
GND
2CEBA
2LEBA
2OEBA
Package Type
TSSOP
SSOP
TOP VIEW
Package Code
PAG56
PVG56
Order Code
PAG
PVG
INDUSTRIAL TEMPERATURE RANGE
PIN DESCRIPTION
Pin Names
Description
xOEAB
A-to-B Output Enable Input (Active LOW)
xOEBA
B-to-A Output Enable Input (Active LOW)
xCEAB
A-to-B Enable Input (Active LOW)
xCEBA
B-to-A Enable Input (Active LOW)
xLEAB
A-to-B Latch Enable Input (Active LOW)
xLEBA
B-to-A Latch Enable Input (Active LOW)
x A x A-to-B Data Inputs or B-to-A 3-State Outputs
x B x B-to-A Data Inputs or A-to-B 3-State Outputs
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
VTERM(2)
VTERM(3)
TSTG
IOUT
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Max
–0.5 to 7
–0.5 to VCC+0.5
–65 to +150
–60 to +120
Unit
V
V
°C
mA
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. All device terminals except FCT162XXX Output and I/O terminals.
3. Outputs and I/O terminals for FCT162XXX.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
Conditions Typ.
CIN
Input Capacitance
VIN = 0V
3.5
COUT
Output Capacitance VOUT = 0V 3.5
Max. Unit
6 pF
8 pF
NOTE:
1. This parameter is measured at characterization but not tested.
FUNCTION TABLE(1, 2)
For A-to-B (Symmetric with B-to-A)
Inputs
Latch
Status
Output
Buffers
xCEAB xLEAB xOEAB xAx to xBx
xBx
H XX
Storing
Z
XHX
Storing
X
L
L
L
Transparent
Current A Inputs
LHL
Storing
Previous* A Inputs
L L H Transparent
Z
LHH
Storing
Z
NOTES:
1. * Before xLEAB LOW-to-HIGH Transition
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
2. A-to-B data flow shown; B-to-A flow control is the same, except using xCEBA, xLEBA
and xOEBA.
2


Part Number IDT74FCT16543CT
Description FAST CMOS 16-BIT LATCHED TRANSCEIVER
Maker IDT
Total Page 7 Pages
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