IDT74FCT16374AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS 16-BIT
REGISTER (3-STATE)
IDT74FCT16374AT/CT/ET
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FEATURES:
DESCRIPTION:
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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
≤
1µA (max.)
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
V
CC
= 5V ±10%
High drive outputs (–32mA I
OH
, 64mA I
OL
)
Power off disable outputs permit “live insertion”
Typical V
OLP
(Output Ground Bounce) < 1.0V at V
CC
= 5V,
T
A
= 25°C
Available in the following packages:
– Industrial: SSOP, TSSOP
The FCT16374T 16-bit edge-triggered D-type register is built using
advanced dual metal CMOS technology. These high-speed, low-power
registers are ideal for use as buffer registers for data synchronization and
storage. The Output Enable (xOE) and clock (xCLK) controls are organized
to operate each device as two 8-bit registers or one 16-bit register with
common clock. Flow-through organization of signal pins simplifies layout. All
inputs are designed with hysteresis for improved noise margin.
The FCT16374T 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
1
OE
2
OE
1
CLK
1
D
1
2
CLK
D
1
O
1
2
D
1
D
2
O
1
C
C
TO SEVEN OTHER CHANNELS
TO SEVEN OTHER CHANNELS
INDUSTRIAL TEMPERATURE RANGE
1
MARCH 2019
DSC-5452/12
IDT74FCT16374AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
1
OE
1
O
1
1
O
2
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
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 V
CC
+0.5
–65 to +150
–60 to +120
Unit
V
V
°C
mA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TOP VIEW
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
CLK
1
D
1
1
D
2
V
TERM(2)
V
TERM(3)
T
STG
I
OUT
GND
1
O
3
1
O
4
GND
1
D
3
1
D
4
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.
V
CC
1
O
5
1
O
6
V
CC
1
D
5
1
D
6
CAPACITANCE
(T
A
= +25°C, f = 1.0MHz)
Symbol
C
IN
C
OUT
Parameter
(1)
Input Capacitance
Output Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
Typ.
3.5
3.5
Max.
6
8
Unit
pF
pF
GND
1
O
7
1
O
8
2
O
1
2
O
2
GND
1
D
7
1
D
8
2
D
1
2
D
2
NOTE:
1. This parameter is measured at characterization but not tested.
GND
2
O
3
2
O
4
GND
2
D
3
2
D
4
PIN DESCRIPTION
Pin Names
xDx
xCLK
xOx
xOE
Data Inputs
Clock Inputs
3-State Outputs
3-State Output Enable Input (Active LOW)
Description
V
CC
2
O
5
2
O
6
V
CC
2
D
5
2
D
6
GND
2
O
7
2
O
8
2
OE
GND
2
D
7
2
D
8
2
CLK
FUNCTION TABLE
(1)
Inputs
Function
Z
Load
Register
xDx
X
X
L
H
L
H
NOTE:
1. H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High-impedance
↑
= LOW-to-HIGH transition
Outputs
xOE
H
H
L
L
H
H
xOx
Z
Z
L
H
Z
Z
xCLK
L
H
↑
↑
↑
↑
Package Type
TSSOP
SSOP
Package Code
PAG48
PVG48
Order Code
PAG
PVG
2
IDT74FCT16374AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 5.0V ±10%
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
I
OS
V
H
I
CCL
I
CCH
I
CCZ
Parameter
Input HIGH Level
Input LOW Level
Input HIGH Current (Input pins)
(5)
Input HIGH Current (I/O pins)
(5)
Input LOW Current (Input pins)
(5)
Input LOW Current (I/O pins)
(5)
High Impedance Output Current
(3-State Output pins)
(5)
Clamp Diode Voltage
Short Circuit Current
Input Hysteresis
Quiescent Power Supply Current
V
CC
= Max
V
IN
= GND or V
CC
V
CC
= Min., I
IN
= –18mA
V
CC
= Max., V
O
=
GND
(3)
—
V
CC
= Max.
V
O
= 2.7V
V
O
= 0.5V
V
I
= GND
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
I
= V
CC
Min.
2
—
—
—
—
—
—
—
—
–80
—
—
Typ.
(2)
—
—
—
—
—
—
—
—
–0.7
–140
100
5
Max.
—
0.8
±1
±1
±1
±1
±1
±1
–1.2
–250
—
500
V
mA
mV
µA
µA
Unit
V
V
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
I
O
V
OH
Parameter
Output Drive Current
Output HIGH Voltage
V
CC
= Min.
V
CC
= Min.
V
OL
I
OFF
Output LOW Voltage
Input/Output Power Off Leakage
(5)
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
CC
= 0V, V
IN
= or V
O
≤
4.5V
—
—
±1
μA
Test Conditions
(1)
V
CC
= Max.
,
V
O
= 2.5V
(3)
I
OH
= –3mA
I
OH
= –15mA IND
I
OH
= –32mA IND
I
OL
= 64mA IND
Min.
–50
2.5
2.4
2
—
Typ.
(2)
—
3.5
3.5
3
0.2
Max.
–180
—
—
—
0.55
Unit
mA
V
V
V
V
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, +25°C ambient.
3. Not more than one output should be shorted 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 ±5µA at T
A
= –55°C.
3
IDT74FCT16374AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol
ΔI
CC
I
CCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current
(4)
Test Conditions
(1)
V
CC
= Max.
V
IN
= 3.4V
(3)
V
CC
= Max.
Outputs Open
xOE = GND
One Input Toggling
50% Duty Cycle
V
CC
= Max.
Outputs Open
f
CP
= 10MHz
50% Duty Cycle
xOE = GND
fi = 5MHz
50% Duty Cycle
One Bit Toggling
V
CC
= Max.
Outputs Open
f
CP
= 10MHz
50% Duty Cycle
xOE = GND
Sixteen Bits Toggling
fi = 2.5MHz
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
Min.
—
—
Typ.
(2)
0.5
60
Max.
1.5
100
Unit
mA
µA/
MHz
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
—
0.6
1.5
mA
V
IN
= 3.4V
V
IN
= GND
—
1.1
3
V
IN
= V
CC
V
IN
= GND
—
3
5.5
(5)
V
IN
= 3.4V
V
IN
= GND
—
7.5
19
(5)
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, +25°C 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
+
ΔI
CC
D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + fiNi)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
ΔI
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
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
4
IDT74FCT16374AT/CT/ET
FAST CMOS 16-BIT REGISTER (3-STATE)
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
74FCT16374AT
Ind.
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SU
t
H
t
W
t
SK(o)
Parameter
Propagation Delay
xCLK to xOx
Output Enable Time
Output Disable Time
Set-up Time HIGH or LOW, xDx to xCLK
Hold Time HIGH or LOW, xDx to xCLK
xCLK Pulse Width HIGH or LOW
Output Skew
(3)
Condition
(2)
C
L
= 50pF
R
L
= 500Ω
Min.
(2)
2
1.5
1.5
2
1.5
5
—
Max.
6.5
6.5
5.5
—
—
—
0.5
Unit
ns
ns
ns
ns
ns
ns
ns
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SU
t
H
t
W
t
SK(o)
Parameter
Propagation Delay
xCLK to xOx
Output Enable Time
Output Disable Time
Set-up Time HIGH or LOW, xDx to xCLK
Hold Time HIGH or LOW, xDx to xCLK
xCLK Pulse Width HIGH or LOW
Output Skew
(3)
Condition
(2)
C
L
= 50pF
R
L
= 500Ω
74FCT16374CT
Ind.
(2)
Min.
Max.
2
5.2
1.5
1.5
2
1.5
5
—
5.5
5
—
—
—
0.5
74FCT16374ET
Ind.
(2)
Min.
Max.
1.5
3.7
1.5
1.5
1.5
0
3
(4)
—
4.4
3.6
—
—
—
0.5
Unit
ns
ns
ns
ns
ns
ns
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested.
3. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
4. This limit is guaranteed but not tested.
5
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