MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1995
1995 Integrated Device Technology, Inc.
6.13
DSC-4214/5
Integrated Device Technology, Inc.
DESCRIPTION
The FCT374T/FCT2374T, FCT534T and FCT574T/
FCT2574T are 8-bit registers built using an advanced dual
metal CMOS technology. These registers consist of eight D-
type flip-flops with a buffered common clock and buffered 3-
state output control. When the output enable (
OE
) input is
LOW, the eight outputs are enabled. When the
OE
input is
HIGH, the outputs are in the high-impedance state.
Input data meeting the set-up and hold time requirements
of the D inputs is transferred to the Q outputs on the LOW-to-
HIGH transition of the clock input.
The FCT2374T and FCT2574T have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot and controlled output fall times-reducing
the need for external series terminating resistors. FCT2xxxT
parts are plug-in replacements for FCTxxxT parts.
1
FAST CMOS OCTAL D
REGISTERS (3-STATE)
FEATURES:
Common features:
Low input and output leakage
1
A (max.)
CMOS power levels
True TTL input and output compatibility
V
OH
= 3.3V (typ.)
V
OL
= 0.3V (typ.)
Meets or exceeds JEDEC standard 18 specifications
Product available in Radiation Tolerant and Radiation
Enhanced versions
Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
Features for FCT374T/FCT534T/FCT574T:
Std., A, C and D speed grades
High drive outputs (-15mA I
OH
, 48mA I
OL
)
Features for FCT2374T/FCT2574T:
Std., A, and C speed grades
Resistor outputs
(-15mA I
OH
, 12mA I
OL
Com.)
(-12mA I
OH
, 12mA I
OL
Mil.)
Reduced system switching noise
D
0
Q
0
D
1
Q
1
D
2
Q
2
D
3
Q
3
D
4
Q
4
D
5
Q
5
D
6
Q
6
D
7
Q
7
CP
OE
D
Q
CP
D
CP
D
CP
D
CP
D
CP
D
CP
D
CP
D
CP
2569 drw 01
Q
Q
Q
Q
Q
Q
Q
2569 drw 02
D
0
Q
0
D
1
Q
1
D
2
Q
2
D
3
Q
3
D
4
Q
4
D
5
Q
5
D
6
Q
6
D
7
Q
7
CP
OE
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
FUNCTIONAL BLOCK DIAGRAM FCT534T
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
IDT54/74FCT374T/AT/CT/DT - 2374T/AT/CT
IDT54/74FCT534T/AT/CT
IDT54/74FCT574T/AT/CT/DT - 2574T/AT/CT
FUNCTIONAL BLOCK DIAGRAM FCT374/FCT2374T AND FCT574/FCT2574T
6.13
2
IDT54/74FCT374T/AT/CT/DT - 2374T/AT/CT, IDT54/74FCT534T/AT/CT, IDT54/74FCT574T/AT/CT/DT - 2574T/AT/CT
FAST CMOS OCTAL D REGISTERS (3-STATE)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
IDT54/74FCT534T
PIN CONFIGURATIONS
IDT54/74FCT374T
IDT54/74FCT574T
2569 drw 04
2569 drw 05
2569 drw 03
INDEX
D
1
Q
1
Q
2
D
2
D
3
D
7
D
6
Q
6
Q
5
D
5
LCC
TOP VIEW
3
2
20 19
1
4
5
6
7
8
18
17
16
15
14
9 10 11 12 13
L20-2
D
0
Q
0
OE
V
CC
Q
7
Q
3
GND
CP
Q
4
D
4
OE
Q
0
D
0
D
1
Q
1
Q
2
D
2
D
3
Q
3
GND
Q
7
D
7
D
6
Q
6
Q
5
D
4
CP
D
5
Q
4
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
P20-1
D20-1
SO20-2
SO20-7
SO20-8
&
E20-1
OE
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
Q
0
Q
1
Q
2
Q
3
Q
4
Q
6
CP
Q
5
Q
7
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
P20-1
D20-1
SO20-2
SO20-7
SO20-8
&
E20-1
OE
Q
0
D
0
D
1
Q
1
Q
2
D
2
D
3
Q
3
GND
Q
7
D
7
D
6
Q
6
Q
5
D
4
CP
D
5
Q
4
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIP/SOIC/QSOP/CERPACK
TOP VIEW
P20-1
D20-1
SO20-2
SO20-8
&
E20-1
INDEX
D
1
D
7
LCC
TOP VIEW
D
6
Q
6
Q
5
D
5
Q
1
Q
2
D
2
D
3
3
2
20 19
1
4
5
6
7
8
18
17
16
15
14
9 10 11 12 13
L20-2
D
0
V
CC
Q
7
Q
0
OE
Q
3
GND
CP
Q
4
D
4
INDEX
D
2
D
3
D
4
D
5
D
6
Q
1
Q
2
Q
3
Q
4
Q
5
D
7
GND
CP
Q
7
Q
6
LCC
TOP VIEW
3
2
20 19
1
4
5
6
7
8
18
17
16
15
14
9 10 11 12 13
L20-2
D
1
D
0
OE
V
CC
Q
0
IDT54/74FCT374T/AT/CT/DT - 2374T/AT/CT, IDT54/74FCT534T/AT/CT, IDT54/74FCT574T/AT/CT/DT - 2574T/AT/CT
FAST CMOS OCTAL D REGISTERS (3-STATE)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.13
3
PIN DESCRIPTION
FUNCTION TABLE
(1)
ABSOLUTE MAXIMUM RATINGS
(1)
CAPACITANCE
(T
A
= +25
C, f = 1.0MHz)
Symbol
Rating
Commercial
Military
Unit
V
TERM(2)
Terminal Voltage
with Respect to
GND
0.5 to +7.0
0.5 to +7.0
V
V
TERM(3)
Terminal Voltage
with Respect to
GND
0.5 to
V
CC
+0.5
0.5 to
V
CC
+0.5
V
T
A
Operating
Temperature
0 to +70
55 to +125
C
T
BIAS
Temperature
Under Bias
55 to +125
65 to +135
C
T
STG
Storage
Temperature
55 to +125
65 to +150
C
P
T
Power Dissipation
0.5
0.5
W
I
OUT
DC Output
Current
60 to +120 60 to +120 mA
2569 tbl 01
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS 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. No terminal voltage may exceed
V
CC
by +0.5V unless otherwise noted.
2. Input and V
CC
terminals only.
3. Outputs and I/O terminals only.
2569 lnk 03
NOTE:
2569 tbl 02
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High Impedance
NC = No Change
= LOW-to-HIGH transition
NOTE:
1. This parameter is measured at characterization but not tested.
2569 lnk 04
Symbol
Parameter
(1)
Conditions
Typ.
Max. Unit
C
IN
Input
Capacitance
V
IN
= 0V
6
10
pF
C
OUT
Output
Capacitance
V
OUT
= 0V
8
12
pF
Pin Names
Description
D
N
D flip-flop data inputs
CP
Clock Pulse for the register. Enters data on
LOW-to-HIGH transition.
Q
N
3-state outputs, (true)
Q
N
3-state outputs, (inverted)
OE
Active LOW 3-state Output Enable input
534
374/574
Inputs
Outputs
Internal
Outputs
Internal
Function
OE
OE
CP
D
N
Q
Q
N
Q
N
Q
N
Q
Q
N
HI-Z
H
H
L
H
X
X
Z
Z
NC
NC
Z
Z
NC
NC
LOAD REGISTER
L
L
H
H
L
H
L
H
H
L
Z
Z
L
H
L
H
L
H
Z
Z
H
L
H
L
6.13
4
IDT54/74FCT374T/AT/CT/DT - 2374T/AT/CT, IDT54/74FCT534T/AT/CT, IDT54/74FCT574T/AT/CT/DT - 2574T/AT/CT
FAST CMOS OCTAL D REGISTERS (3-STATE)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= 0
C to +70
C, V
CC
= 5.0V
5%; Military: T
A
= 55
C to +125
C, V
CC
= 5.0V
10%
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
2.0
--
--
V
V
IL
Input LOW Level
Guaranteed Logic LOW Level
--
--
0.8
V
I
I H
Input HIGH Current
(4)
V
CC
= Max.
V
I
= 2.7V
--
--
1
A
I
I L
Input LOW Current
(4)
V
I
= 0.5V
--
--
1
I
OZH
High Impedance Output Current
V
CC
= Max.
V
O
= 2.7V
--
--
1
A
I
OZL
(3-State Output pins)
(4)
V
O
= 0.5V
--
--
1
I
I
Input HIGH Current
(4)
V
CC
= Max., V
I
= V
CC
(Max.)
--
--
1
A
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= 18mA
--
0.7
1.2
V
V
H
Input Hysteresis
--
--
200
--
mV
I
CC
Quiescent Power Supply Current
V
CC
= Max., V
IN
= GND or V
CC
--
0.01
1
mA
2569 lnk 05
OUTPUT DRIVE CHARACTERISTICS FOR FCT374T/534T/574T
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
OH
Output HIGH Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OH
= 6mA MIL.
I
OH
= 8mA COM'L.
2.4
3.3
--
V
I
OH
= 12mA MIL.
I
OH
= 15mA COM'L.
2.0
3.0
--
V
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 32mA MIL.
I
OL
= 48mA COM'L.
--
0.3
0.5
V
I
OS
Short Circuit Current
V
CC
= Max., V
O
= GND
(3)
60
120
225
mA
OUTPUT DRIVE CHARACTERISTICS FOR FCT2374T/2574T
2569 lnk 06
2569 lnk 07
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25
C ambient.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. The test limit for this parameter is
5
A at T
A
= 55
C.
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
OUT
= 1.5V
(3)
16
48
--
mA
I
ODH
Output HIGH Current
V
CC
= 5V, V
IN
= V
IH
or V
IL,
V
OUT
= 1.5V
(3)
16
48
--
mA
V
OH
Output HIGH Voltage
V
CC
= Min.
V
IN
= V
IH
or
V
IL
I
OH
= 12mA MIL.
I
OH
= 15mA COM'L.
2.4
3.3
--
V
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 12mA
--
0.3
0.50
V
IDT54/74FCT374T/AT/CT/DT - 2374T/AT/CT, IDT54/74FCT534T/AT/CT, IDT54/74FCT574T/AT/CT/DT - 2574T/AT/CT
FAST CMOS OCTAL D REGISTERS (3-STATE)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.13
5
POWER SUPPLY CHARACTERISTICS
NOTES:
1. For conditions shown as Max. or Min., 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
+
I
CC
D
H
N
T
+ I
CCD
(f
CP/
2 + f
i
N
i
)
I
CC
= Quiescent Current
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)
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
All currents are in milliamps and all frequencies are in megahertz.
2569 tbl 08
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
CC
Quiescent Power Supply Current
TTL Inputs HIGH
V
CC
= Max.
V
IN
= 3.4V
(3)
--
0.5
2.0
mA
I
CCD
Dynamic Power Supply
Current
(4)
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
FCTxxxT
--
0.15
0.25
mA/
MHz
OE
= GND
One Input Toggling
50% Duty Cycle
FCT2xxxT
--
0.06
0.12
I
C
Total Power Supply Current
(6)
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
FCTxxxT
--
1.5
3.5
mA
f
CP
= 10MHz
50% Duty Cycle
FCT2xxxT
--
0.6
2.2
OE
= GND
fi = 5MHz
V
IN
= 3.4
V
IN
= GND
FCTxxxT
--
2.0
5.5
50% Duty Cycle
One Bit Toggling
FCT2xxxT
1.1
4.2
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
FCTxxxT
--
3.8
7.3
(5)
f
CP
= 10MHz
50% Duty Cycle
FCT2xxxT
--
1.5
4.0
(5)
OE
= GND
Eight Bits Toggling
V
IN
= 3.4
V
IN
= GND
FCTxxxT
--
6.0
16.3
(5)
fi = 2.5MHz
50% Duty Cycle
FCT2xxxT
--
3.8
13.0
(
5)
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