MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
1
JULY 2002
IDT54/74FCT162245T/AT/CT
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS 16-BIT
BIDIRECTIONAL
TRANSCEIVER
DESCRIPTION:
The FCT162245T 16-bit transceiver is built using advanced dual metal
CMOS technology. These high-speed, low-power transceivers are ideal for
synchronous communication between two buses (A and B). The Direction and
Output Enable controls operate these devices as either two independent 8-bit
transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls
the direction of data flow. The output enable pin (xOE) overrides the direction
control and disables both ports. All inputs are designed with hysteresis for
improved noise margin.
The FCT162245T has balanced output drive with current limiting resistors.
This offers low ground bounce, minimal undershoot, and controlled output fall
timesreducing the need for external series terminating resistors. The
FCT162245T is a plug-in replacement for the FCT16245T and ABT16245 for
on-board interface applications.
1
DIR
1
OE
1
A
1
1
A
2
1
A
3
1
A
4
1
A
5
1
A
6
1
A
7
1
A
8
1
B
1
1
B
2
1
B
3
1
B
4
1
B
5
1
B
6
1
B
7
1
B
8
2
DIR
2
OE
2
A
1
2
A
2
2
A
3
2
A
4
2
A
5
2
A
6
2
A
7
2
A
8
2
B
1
2
B
2
2
B
3
2
B
4
2
B
5
2
B
6
2
B
7
2
B
8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
2002 Integrated Device Technology, Inc.
DSC-5457/3
FEATURES:
0.5 MICRON CMOS Technology
High-speed, low-power CMOS replacement for ABT functions
Typical t
SK(o)
(Output Skew) < 250ps
Low input and output leakage
1A (max.)
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
Balanced Output Drivers:
24mA (industrial)
16mA (military)
Reduced system switching noise
Typical V
OLP
(Output Ground Bounce) < 0.6V at V
CC
= 5V,
T
A
= 25C
Available in the following packages:
Industrial: SSOP, TSSOP, TVSOP
Military: CERPACK
FUNCTIONAL BLOCK DIAGRAM
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
2
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
SSOP/ TSSOP/ TVSOP/ CERPACK
TOP VIEW
PIN CONFIGURATION
1
DIR
1
B
1
GND
1
B
3
V
CC
GND
2
B
2
GND
V
CC
GND
1
B
2
1
B
4
1
B
5
1
B
6
1
B
7
1
B
8
2
B
1
2
B
3
2
B
4
2
B
5
2
B
7
2
B
8
2
B
6
2
DIR
1
A
1
1
A
2
GND
1
A
3
1
A
4
V
CC
1
A
5
1
A
6
1
A
7
1
A
8
2
A
1
2
A
2
2
A
3
2
A
4
V
CC
2
A
5
2
A
7
2
A
8
2
A
6
GND
GND
GND
2
OE
1
OE
39
29
30
31
32
33
34
35
36
37
38
25
26
27
28
48
47
41
42
43
44
45
46
40
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
11
21
22
23
24
Symbol
Description
Max
Unit
V
TERM
(2)
Terminal Voltage with Respect to GND
0.5 to +7
V
V
TERM
(3)
Terminal Voltage with Respect to GND
0.5 to V
CC
+0.5
V
T
STG
Storage Temperature
65 to +150
C
I
OUT
DC Output Current
60 to +120
mA
ABSOLUTE MAXIMUM RATINGS
(1)
(1)
(1)
(1)
(1)
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 FCT162XXXT AND FCT166XXXT (A-Port) Output and
I/O terminals.
3. Output and I/O terminals terminals for FCT162XXXT AND FCT166XXXT (A-Port).
Symbol
Parameter
(1)
Conditions
Typ.
Max.
Unit
C
IN
Input Capacitance
V
IN
= 0V
3.5
6
pF
C
OUT
Output Capacitance
V
OUT
= 0V
3.5
8
pF
CAPACITANCE
(T
A
= +25C, F = 1.0MHz)
NOTE:
1. This parameter is measured at characterization but not tested.
Pin Names
Description
xOE
Output Enable Inputs (Active LOW)
xDIR
Direction Control Input
xAx
Side A Inputs or 3-State Outputs
xBx
Side B Inputs or 3-State Outputs
PIN DESCRIPTION
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
Inputs
xOE
xDIR
Outputs
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
High Z State
FUNCTION TABLE
(1)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
3
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
2
--
--
V
V
IL
Input LOW Level
Guaranteed Logic LOW Level
--
--
0.8
V
I
IH
Input HIGH Current (Input pins)
(5)
V
CC
= Max.
V
I
= V
CC
--
--
1
A
Input HIGH Current (I/O pins)
(5)
--
--
1
I
IL
Input LOW Current (Input pins)
(5)
V
I
= GND
--
--
1
A
Input LOW Current (I/O pins)
(5)
--
--
1
I
OZH
High Impedance Output Current
V
CC
= Max.
V
O
= 2.7V
--
--
1
A
I
OZL
(3-State Output pins)
(5)
V
O
= 0.5V
--
--
1
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= 18mA
--
0.7
1.2
V
I
OS
Short Circuit Current
V
CC
= Max., V
O
= GND
(3)
80
140
250
mA
V
H
Input Hysteresis
--
--
100
--
mV
I
CCL
Quiescent Power Supply Current
V
CC
= Max.
--
5
500
A
I
CCH
V
IN
= GND or V
CC
I
CCZ
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= 40C to +85C, V
CC
= 5.0V 10%; Military: T
A
= 55C to +125C, V
CC
= 5.0V 10%
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
ODL
Output LOW Current
V
CC
= 5V
,
V
IN =
V
IH
or
V
IL,
V
O
= 1.5V
(3)
60
115
200
mA
I
ODH
Output HIGH Current
V
CC
= 5V
,
V
IN =
V
IH
or
V
IL,
V
O
= 1.5V
(3)
60
115
200
mA
V
OH
Output HIGH Voltage
V
CC
= Min
I
OH
= 16mA MIL
2.4
3.3
--
V
V
IN
= V
IH
or V
IL
I
OH
= 24mA IND
V
OL
Output LOW Voltage
V
CC
= Min
I
OH
= 16mA MIL
--
0.3
0.55
V
V
IN
= V
IH
or V
IL
I
OH
= 24mA IND
OUTPUT DRIVE CHARACTERISTICS
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. This test limit for this parameter is 5A at T
A
= 55C.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
4
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25C ambient.
3. Per TTL driven input (V
IN
= 3.4V). All other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + fiNi)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
N
CP
= Number of Clock Inputs at f
CP
fi = Input Frequency
Ni = Number of Inputs at fi
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
CC
Quiescent Power Supply Current
V
CC
= Max.
--
0.5
1.5
mA
TTL Inputs HIGH
V
IN
= 3.4V
(3)
I
CCD
Dynamic Power Supply
V
CC
= Max.
V
IN
= V
CC
--
60
100
A/
Current
(4)
Outputs Open
V
IN
= GND
MHz
xOE = xDIR = GND
One Input Toggling
50% Duty Cycle
I
C
Total Power Supply Current
(6)
V
CC
= Max.
V
IN
= V
CC
--
0.6
1.5
mA
Outputs Open
V
IN
= GND
fi = 10MHz
50% Duty Cycle
V
IN
= 3.4V
--
0.9
2.3
xOE = xDIR = GND
V
IN
= GND
One Bits Togging
V
CC
= Max.
V
IN
= V
CC
--
2.4
4.5
(5)
Outputs Open
V
IN
= GND
fi = 2.5MHz
50% Duty Cycle
V
IN
= 3.4V
--
6.4
16.5
(5
xOE = xDIR = GND
V
IN
= GND
Sixteen Bits Togging
POWER SUPPLY CHARACTERISTICS
54FCT162445T
74/54FCT162245AT
54/74FCT162245CT
Mil.
Ind.
Mil.
Ind.
Mil.
Symbol
Parameter
Condition
(1)
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Min.
(2)
Max.
Unit
t
PLH
Propagation Delay
C
L
= 50pF
1.5
7.5
1.5
4.6
1.5
4.9
1.5
3.5
1.5
4.5
ns
t
PHL
A to B, B to A
R
L
= 500
t
PZH
Output Enable Time
1.5
10
1.5
6.2
1.5
6.5
1.5
4.4
1.5
6.2
ns
t
PZL
xOE to A or B
t
PHZ
Output Disable Time
1.5
10
1.5
5
1.5
6
1.5
4
1.5
5.2
ns
t
PLZ
xOE to A or B
t
PZH
Output Enable Time
1.5
10
1.5
6.2
1.5
6.5
1.5
4.8
1.5
6.2
ns
t
PZL
xDIR to A or B
(4)
t
PHZ
Output Disable Time
1.5
10
1.5
5
1.5
6
1.5
4
1.5
5.2
ns
t
PLZ
xDIR to A or B
(4)
t
SK(o)
Output Skew
(3)
--
0.5
--
0.5
--
0.5
--
0.5
--
0.5
ns
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
4. This parameter is guaranteed but not tested.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
5
Pulse
Generator
R
T
D.U.T.
V
CC
V
IN
C
L
V
OUT
50pF
500
500
7.0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
t
SU
t
H
t
REM
t
SU
t
H
PRESET
CLEAR
CLOCK ENABLE
ETC.
HIGH-LOW-HIGH
PULSE
LOW-HIGH-LOW
PULSE
t
W
1.5V
1.5V
SAME PHASE
INPUT TRANSITION
3V
1.5V
0V
1.5V
V
OH
t
PLH
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
3V
1.5V
0V
t
PLH
t
PHL
t
PHL
V
OL
CONTROL
INPUT
3V
1.5V
0V
3.5V
0V
OUTPUT
NORMALLY
LOW
OUTPUT
NORMALLY
HIGH
SWITCH
CLOSED
SWITCH
OPEN
V
OL
0.3V
0.3V
t
PLZ
t
PZL
t
PZH
t
PHZ
3.5V
0V
1.5V
1.5V
ENABLE
DISABLE
V
OH
TEST CIRCUITS AND WAVEFORMS
Propagation Delay
Test Circuits for All Waveforms
Enable and Disable Times
Set-up, Hold, and Release Times
Pulse Width
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
SWITCH POSITION
DEFINITIONS:
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator.
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate
1.0MHz; t
F
2.5ns; t
R
2.5ns.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
6
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
ORDERING INFORMATION
IDT XX
Temp. Range
XXXX
Device Type
XX
Package
X
Process
PV
PA
PF
Industrial Options
Shrink Small Outline Package
Thin Shrink Small Outline Package
Thin Very Small Outline Package
16-Bit Buffer/Line Driver
54
74
55C to +125C
40C to +85C
162
Double-Density, 5 Volt, Balanced Drive
E
Military Options
CERPACK
Blank
B
Industrial
MIL-STD-883, Class B
FCT
XXX
Family
245T
245AT
245CT
CORPORATE HEADQUARTERS
for SALES:
for Tech Support:
2975 Stender Way
800-345-7015 or 408-727-6116
logichelp@idt.com
Santa Clara, CA 95054
fax: 408-492-8674
(408) 654-6459
www.idt.com
3/26/2002 Removed standard speed grade
6/26/2002 Updated as per PDNs Logic-00-07 and Logic-01-04
DATA SHEET DOCUMENT HISTORY
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