Fct_534t.p65
1
IDT74FCT534T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
COMMERCIAL TEMPERATURE RANGE
SEPTEMBER 1999
1999 Integrated Device Technology, Inc.
DSC-5493/-
c
IDT74FCT534T/AT/CT
COMMERCIAL TEMPERATURE RANGE
FAST CMOS OCTAL D
REGISTER (3-STATE)
DESCRIPTION:
The FCT534T 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.
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
C P
OE
D
Q
C P
D
C P
D
C P
D
C P
D
C P
D
C P
D
C P
D
C P
Q
Q
Q
Q
Q
Q
Q
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
-
Low input and output leakage
1 A (max.)
-
Extended commercial range of 40C to +85C
-
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
-
Available in PDIP, SOIC, and QSOP packages
-
Std., A, C and D speed grades
-
High drive outputs (-15mA I
OH
, 48mA I
OL
)
2
COMMERCIAL TEMPERATURE RANGE
IDT74FCT534T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
PIN CONFIGURATION
PDIP/ SOIC/ QSOP/ CERPACK
TOP VIEW
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
3
1
1 6
1 5
1 4
1 1
1 9
1 8
2 0
1 7
1 3
1 2
5
6
7
4
P20-1
D20-1
SO 20-2
SO 20-8
8
9
1 0
D
1
Q
0
D
0
V
CC
Q
1
D
3
Q
2
D
2
Q
3
GN D
Q
7
Q
6
D
7
D
6
Q
5
Q
4
D
5
D
4
CP
OE
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
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
65 to +120
mA
8T-link
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.
CAPACITANCE (T
A
= +25
O
C, f = 1.0MHz)
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
8T-link
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
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
FUNCTION TABLE
(1)
Inputs
Outputs
Internal
Function
OE
CP
D
N
Q
N
Q
N
HI-Z
H
H
L
H
X
X
Z
Z
NC
NC
LOAD
REGISTER
L
L
H
H
L
H
L
H
H
L
Z
Z
L
H
L
H
3
IDT74FCT534T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
COMMERCIAL TEMPERATURE RANGE
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, +25C 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
= 55C.
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
(4)
V
CC
= Max.
V
I
= 2.7V
--
--
1
A
I
IL
Input LOW Current
(4)
V
I
= 0.5V
--
--
1
I
OZH
High Impedance Output Current
V
CC
= Max.
V
O
= 2.7V
--
--
1
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
8T-link
OUTPUT DRIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
OH
Output HIGH Voltage
V
CC
= Min.
I
OH
= 8mA
2.4
3.3
--
V
V
IN
= V
IH
or V
IL
I
OH
= 15mA
2
3
--
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OL
= 48mA
--
0.3
0.5
V
I
OS
Short Circuit Current
V
CC
= Max., V
O
= GND
(3)
60
120
225
mA
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= 40C to +85C, V
CC
= 5.0V 5%
4
COMMERCIAL TEMPERATURE RANGE
IDT74FCT534T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
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, +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/
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.
POWER SUPPLY CHARACTERISTICS
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
mA
I
CCD
Dynamic Power Supply Current
(4)
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
--
0.15
0.25
mA/
MHz
OE = GND
One Input Toggling
50% Duty Cycle
I
C
Total Power Supply Current
(6)
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
--
1.5
3.5
mA
f
CP
= 10MHz
50% Duty Cycle
OE = GND
fi = 5MHz
V
IN
= 3.4
V
IN
= GND
--
2
5.5
50% Duty Cycle
One Bit Toggling
V
CC
= Max.
Outputs Open
V
IN
= V
CC
V
IN
= GND
--
3.8
7.3
(5)
f
CP
= 10MHz
50% Duty Cycle
OE = GND
Eight Bits Toggling
V
IN
= 3.4
V
IN
= GND
--
6
16.3
(5)
fi = 2.5MHz
50% Duty Cycle
5
IDT74FCT534T/AT/CT
FAST CMOS OCTAL D REGISTER (3-STATE)
COMMERCIAL TEMPERATURE RANGE
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.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
(1)
FCT534T
FCT534AT
FCT534CT
Symbol
Parameter
Condition
(1)
Min
.
(2)
Max.
Min
.
(2)
Max.
Min
.
(2)
Max.
Unit
t
PLH
t
PHL
Propagation Delay
CP to
Q
N
C
L
= 50pF
R
L
= 500
2
10
2
6.5
2
5.2
ns
t
PZH
t
PZL
Output Enable Time
1.5
12.5
1.5
6.5
1.5
5.5
ns
t
PHZ
t
PLZ
Output Disable Time
1.5
8
1.5
5.5
1.5
5
ns
t
SU
Set-up Time HIGH
or LOW, D
N
to CP
2
--
2
--
2
--
ns
t
H
Hold Time HIGH
or LOW, D
N
to CP
1.5
--
1.5
--
1.5
--
ns
t
W
CP Pulse Width
HIGH or LOW
(3)
7
--
5
--
5
--
ns
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