IDT54/74FCT574T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS OCTAL D
REGISTERS (3-STATE)
IDT54/74FCT574T/AT/CT
FEATURES:
−
−
−
−
−
−
−
−
−
Low input and output leakage
≤1µ
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
Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
Std., A, and C speed grades
High drive outputs (-15mA I
OH
, 48mA I
OL
)
Power off disable outputs permit “live insertion”
Available in the following packages:
•
Industrial: SOIC, SSOP, QSOP, TSSOP
•
Military: CERDIP, LCC, CERPACK
DESCRIPTION:
The FCT574T is an 8-bit register 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.
FUNCTIONAL BLOCK DIAGRAM
D
0
CP
CP
D
Q
CP
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
OE
Q
0
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
1
c
1999 Integrated Device Technology, Inc.
AUGUST 2000
DSC-5494/-
IDT54/74FCT574T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
PIN CONFIGURATION
D
1
OE
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
2
3
4
5
6
7
8
9
10
D20-1
SO20-2
SO20-7
SO20-8
SO20-9
E20-1
19
18
17
16
15
14
13
12
11
Q
0
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
CP
3
2
1
20
19
18
17
L20-2
16
15
14
9
10
11
12
13
D
2
D
3
D
4
D
5
D
6
4
5
6
7
8
D
0
1
Q
0
20
V
CC
OE
INDEX
V
CC
Q
1
Q
2
Q
3
Q
4
Q
5
D
7
Q
7
CERDIP/ SOIC/ SSOP/ QSOP/ TSSOP/ CERPACK
TOP VIEW
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM(2)
V
TERM(3)
T
STG
I
OUT
Rating
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
8T-link
PIN DESCRIPTION
Pin Names
D
N
CP
Q
N
Q
N
OE
Description
D flip-flop data inputs
Clock Pulse for the register. Enters data on LOW-to-
HIGH transition.
3-state outputs (TRUE)
3-state outputs (INVERTED)
Active LOW 3-state Output Enable input
(1)
Outputs
D
N
X
X
L
H
L
H
Q
N
Z
Z
L
H
Z
Z
Internal
Q
N
NC
NC
H
L
H
L
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.
No
terminal voltage may exceed Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Outputs and I/O terminals only.
FUNCTION TABLE
Inputs
Function
HI-Z
LOAD
REGISTER
OE
H
H
L
L
H
H
CP
L
H
↑
↑
↑
↑
CAPACITANCE
(T
A
= +25
O
C, f = 1.0MHz)
Symbol
C
IN
C
OUT
Parameter
(1)
Input Capacitance
Output Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
Typ.
6
8
Max.
10
12
Unit
pF
pF
8T-link
NOTE:
1. This parameter is measured at characterization but not tested.
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High-Impedance
NC = No Change
↑
= LOW-to-HIGH transition
2
GND
LCC
TOP VIEW
CP
Q
6
IDT54/74FCT574T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 5.0V ± 5%; Military: T
A
= –55°C to +125°C, V
CC
= 5.0V ± 10%
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
I
I
V
IK
V
H
I
CC
Parameter
Input HIGH Level
Input LOW Level
Input HIGH Current
(4)
Input LOW Current
(4)
High Impedance Output Current
(3-State Output pins)
(4)
Input HIGH Current
(4)
Clamp Diode Voltage
Input Hysteresis
Quiescent Power Supply Current
V
CC
= Max., V
I
= V
CC
(Max.)
V
CC
= Min., I
IN
= –18mA
—
V
CC
= Max., V
IN
= GND or V
CC
V
CC
= Max.
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
I
= 2.7V
V
I
= 0.5V
V
O
= 2.7V
V
O
= 0.5V
Min.
2
—
—
—
—
—
—
—
—
—
Typ.
(2)
—
—
—
—
—
—
—
–0.7
200
0.01
Max.
—
0.8
±1
±1
±1
±1
±1
–1.2
—
1
µA
V
mV
mA
8T-link
Unit
V
V
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
V
OH
Parameter
Output HIGH Voltage
Test Conditions
(1)
V
CC
= Min.
I
OH
= –6mA MIL
V
IN
=
V
IH
or V
IL
I
OH
= –8mA IND
I
OH
= –12mA MIL
I
OH
= –15mA IND
V
CC
= Min.
I
OL
= 32mA MIL
V
IN
=
V
IH
or V
IL
I
OL
= 48mA IND
V
CC
= Max., V
O
= GND
(3)
Min.
2.4
2
—
–60
Typ.
(2)
3.3
3
0.3
–120
Max.
—
—
0.5
–225
V
mA
Unit
V
V
OL
I
OS
Output LOW Voltage
Short Circuit Current
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 ±5µ A at T
A
= –55°C.
3
IDT54/74FCT574T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
∆I
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
OE
= GND
One Input Toggling
50% Duty Cycle
V
CC
= Max.
Outputs Open
f
CP
= 10MHz
50% Duty Cycle
OE
= GND
fi = 5MHz
50% Duty Cycle
One Bit Toggling
V
CC
= Max.
Outputs Open
f
CP
= 10MHz
50% Duty Cycle
OE
= GND
Eight Bits Toggling
fi = 2.5MHz
50% Duty Cycle
Min.
—
—
Typ.
(2)
0.5
0.15
Max.
2
0.25
Unit
mA
mA/
MHz
V
IN
= V
CC
V
IN
= GND
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
—
1.5
3.5
mA
V
IN
= 3.4
V
IN
= GND
—
2
5.5
V
IN
= V
CC
V
IN
= GND
—
3.8
7.3
(5)
V
IN
= 3.4
V
IN
= GND
—
6
16.3
(5)
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.
4
IDT54/74FCT574T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL
FCT574T
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SU
t
H
t
W
Parameter
Propagation Delay
CP to Q
N
Output Enable Time
Output Disable Time
Set-up Time HIGH
or LOW, D
N
to CP
Hold Time HIGH
or LOW, D
N
to CP
CP Pulse Width
HIGH or LOW
(3)
Conditions
(1)
C
L
= 50pF
R
L
= 500Ω
Min
.
(2)
2
1.5
1.5
2
1.5
7
Max
.
10
12.5
8
—
—
—
FCT574AT
Min
.
(2)
2
1.5
1.5
2
1.5
5
Max
.
6.5
6.5
5.5
—
—
—
FCT574CT
Min
.
(2)
2
1.5
1.5
2
1.5
5
Max
.
5.2
5.5
5
—
—
—
Unit
ns
ns
ns
ns
ns
ns
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY
FCT574T
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SU
t
H
t
W
Parameter
Propagation Delay
CP to Q
N
Output Enable Time
Output Disable Time
Set-up Time HIGH
or LOW, D
N
to CP
Hold Time HIGH
or LOW, D
N
to CP
CP Pulse Width
(3)
HIGH or LOW
Conditions
(1)
C
L
= 50pF
R
L
= 500Ω
Min
.
(2)
2
1.5
1.5
2
1.5
7
Max
.
11
14
8
—
—
—
FCT574AT
Min
.
(2)
2
1.5
1.5
2
1.5
6
Max
.
7.2
7.5
6.5
—
—
—
FCT574CT
Min
.
(2)
2
1.5
1.5
2
1.5
6
Max
.
6.2
6.2
5.7
—
—
—
Unit
ns
ns
ns
ns
ns
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not tested.
5
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